International Workshop on Next Generation Nucleon Decay and Neutrino Detectors (NNN18)

31 Oct 2018, 01:00 → 4 Nov 2018, 12:00 America/Vancouver

Theatre (Room C300) (UBC Robson Square)

Welcome to NNN18

The 19th International Workshop on Next generation Nucleon Decay and Neutrino Detectors (NNN18) will be held at the University of British Columbia (UBC) Robson Square, Vancouver, Canada from November 1-3, 2018 This series of workshops brings together experts from across the particle physics community to discuss future large scale detectors for research on nucleon decays and neutrino physics. The workshop will consist of invited plenary talks, some contributed talks in parallel sessions and a poster session addressing the following topics: 

• Proton decay
• High intensity neutrino beams
• Supernova neutrinos
• Solar neutrinos
• Atmospheric neutrinos
• Reactor neutrinos
• Large Detectors R&D

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To register for the conference please go to the:  NNN18 Conference Registration link located in the left hand panel or go to:  https://nnn18.triumf.ca/registration.html 

You will receive an email confirmation of your conference registration from the TRIUMF in-house system.

Please note that if you do not have an InDiCo account in this version of InDiCo at TRIUMF you will need to create one before uploading your abstract.

There will be a Poster Session / Reception on Thursday, November 1.

Please use the Compact Timetable link to verify the correct day and time of your talk.

Wednesday, 31 October

14:00 → 18:00 Satellite Workshop

Join from PC, Mac, Linux, iOS or Android: https://zoom.us/j/641075961

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Meeting ID: 641 075 961
International numbers available: https://zoom.us/u/acwHZ9orYJ

14:00 Introduction: Status of HyperK and opportunities

Speaker: Prof. Masato SHIOZAWA (Kamioka Observatory, ICRR, The University of Tokyo)

Slides Hyper-Kamiokande-Overview-Shiozawa-NNN18SatelliteHKWorkshop-181031v0.8.pdf

14:45 Physics with higher energy neutrinos at HyperK

Speaker: Dr Akira Konaka (TRIUMF)

Slides HighEnergy-20181030-update.pdf

15:30 Neutrino astrophysics at HyperK

Speaker: Dr Michael Smy (University of California, Irvine)

Slides HyperK-SatelliteWorkshop-LowE.pdf

16:15 HyperK detector

Speaker: Shoei Nakayama (Kamioka Observatory, ICRR, University of Tokyo)

Slides 20181031-Nakayama-satellite-HKdetector.pdf

17:00 Analysis and Systematics

Speaker: Dr Mark Hartz (Kavli IPMU (WPI), University of Tokyo/TRIUMF)

Slides hyperk_analysis_systematics.pdf

Thursday, 1 November

08:00 → 12:35 Plenary

Remote connection: https://zoom.us/j/741363718

08:00 Welcome

Speaker: Dr Jonathan Bagger (TRIUMF)

08:10 Experimental Overview of Neutrino Oscillations

Speaker: Prof. Mark Messier (Indiana)

Slides NNN2018-Messier.pdf

08:40 Origin of Neutrino mass

Speaker: Prof. Shun Zhou (IHEP)

Slides NNN18_Vancouver_ZHOU.pdf

09:00 Theoretical overview of neutrino oscillation

Speaker: Mr Carlo Giunti (INFN)

Slides giunti-181101-nnn.pdf

09:20 Neutrinos and muti-messenger signatures for a galactic supernova

Speaker: Prof. Kei Kotake (Fukukoka)

Slides kkotake

09:40 New development of the underground facilities

Speaker: Shoei Nakayama (Kamioka Observatory, ICRR, University of Tokyo)

Slides 20171101-Nakayama-NNN2018.pdf

10:00 Refreshment Break

10:30 T2K

Speaker: Dr Laura Kormos (Lancaster University)

Slides NNN2018.pdf

10:55 NOvA

Speaker: Gregory Pawloski (University of Minnesota)

Slides nova-NNN2018.pdf

11:20 IceCube

Speaker: Dr Joanna Kiryluk (Stonybrook)

Slides 3-jkiryluk_NNN2018_presented.pdf

11:45 SuperK (Atmospheic, proton decays)

Speaker: Dr Shunichi Mine (University of California, Irvine)

Slides mine_nnn18_v4.pdf

12:10 Poster talks (1)

Poster talks Thu, Nov 1: - Update on the $hep$ solar neutrino limit from the three-phase SNO dataset - GILJE, Karin - Neutron detection in the water phase of SNO+ experiment - ZHANG, Yang - LEGEND: The Large Enriched Germanium Experiment for Neutrinoless Double-Beta Decay - BUUCK, Micah - Energy Reconstruction in NOvA with Regression Convolutional Neural Networks - BIAN, Jianming - R&D on Water-based Liquid Scintillator for the Theia experiment - FISCHER, Vincent - Development of mPMT modules for NuPRISM and Photosensor Test Facility at TRIUMF - Jashanjot Kaur Brar

Speakers: Ms Jashanjot Kaur Brar (University of Winnipeg), Prof. Jianming Bian (UC Irvine), Dr Karin Gilje (University of Alberta), Micah Buuck (University of Washington - Seattle), Dr Vincent Fischer (University of California at Davis), Dr Yang Zhang (University of Alberta)

Slides

• Buuck_LEGEND_NNN18_slides.pdf
• Gilje_SNO_hep_speedtalk.pdf
• NNN18_talk_jashan.pdf
• NNN2018_regCNNE_Talk.pdf
• Theia_NNN2018_short_poster_pres_FISCHER.pdf
• YangZhang_neutron_nnn18_slide.pdf

12:35 → 14:00 Lunch Break

14:00 → 17:50 Detector parallel

14:00 The IceCube Neutrino Observatory: Detector Status and Designs for the Future

The IceCube Neutrino Observatory is a cubic-kilometer-scale neutrino detector and cosmic ray air shower array at the geographic South Pole. The detector consists of over 5400 digital optical modules (DOMs), with 98.5% of modules still taking data. High detector uptime and a real-time Iridium satellite link have helped to facilitate recent astrophysical neutrino discoveries. Prototype air shower detectors have recently been installed, exploring the enhancement of the IceTop surface array with scintillators, radio antennas, and air Cherenkov telescopes. Furthermore, electronics and mechanical designs are well underway for the next stage of the experiment, the IceCube Upgrade, consisting of seven new detector strings at the core of the current array. Several improvements are planned for the Upgrade, including DOMs with larger photocathode area and segmented sensors; improved timing and communications protocols; in-DOM waveform feature extraction; and new precision calibration devices. We will present the status of detector development for the Upgrade as well as plans for a next-generation neutrino facility at the South Pole, IceCube–Gen2.

Speaker: John Kelley (University of Madison–Wisconsin)

Slides nnn18_kelley_icecube_detector.pdf

14:20 STRAW – STRings for Absorption length in Water

Recent results presented by IceCube have demonstrated the potential of large instrumented volume type detectors for multi-messenger astronomy using neutrinos. Conducting deep astronomical observations with such type of detector requires increasing the sensitivity and therefore mostly the detector volume by around 2 orders of magnitude, a goal that might not be achievable with a single installation. Constructing a detector array of about 10 times the size of IceCube on the northern hemisphere in the ocean would mark a milestone towards real Neutrino astronomy. STRAW is a pathfinder instrument for such an installation, consisting of two 120 m long instrumented strings, developed by the Technical University Munich in collaboration with the University of Alberta and Ocean Networks Canada (ONC). It has been deployed this year at Cascadia basin at 2.6 km b.s.l., in the northern Pacific, off the Canadian coast. The goal of the instrument is characterizing this site, which thanks to ONC is already equipped with an extensive power and data communication infrastructure, in terms of optical properties and bioluminescence. We will introduce this new instrument and show first preliminary results from our measurements.

Speaker: Dr Christian Fruck (Technical University Munich (TUM))

Slides 20181101_NNN.pdf

14:40 Liquid Scintillator development

Speaker: Minfang Yeh (Brookhaven National Lab)

Slides Liquid_Scintillator_Development.pdf

15:00 Spectral Sorting of Photons Using Dichroic Winston Cones

Large-scale neutrino detectors typically observe photons created by interactions inside of the target volume. These detectors deploy a wide variety of technologies, most commonly water, ice, or scintillator targets surrounded by PMTs. The detected photons carry information that goes unused, most notably the wavelength, which can indicate the production method and travel time of the photon. In particular, in scintillator detectors, wavelength can be used to discriminate Cherenkov from scintillation light due to the broad wavelength distribution of Cherenkov light. This discrimination provides a method for reconstructing the direction of the events, which is crucial for identifying solar neutrino interactions. A novel method for sorting photons by their wavelengths is introduced using Winston cone concentrators made of dichroic filters. Using two or more different types of dichroic filters can provide valuable wavelength information with minimal photon loss.

Speaker: Mr Tanner Kaptanoglu (University of Pennsylvania)

Slides DiChroic_Presentation.pdf

15:15 The MCP-PMT for Neutrino Detector

Microchannel plate (MCP) is always used in the small PMTs as the electron multiplier for the fast timing detection, which greatly improved the time resolution of PMT. The large scaler neutrino detectors, such as SuperK, DayaBay, JUNO and HyperK, need the large area PMTs for the large photocathode coverage and less electronic channels. Usually there was only one type of 20 inch PMT based on the Dynode part by the Hamamastu company in Japan. Researchers at IHEP have conceived a new concept of large area MCP-PMT several years ago. The small MCP units replace the bulky Dynode chain in the large PMTs. In addition the transmission and reflection photocathode in the same glass bulb to enhance the efficiency of photoelectron conversion. After several years R&D, the 20 inch MCP-PMT was successfully produced. This type of PMT has large sensitive area, high QE, and large P/V for good single photoelectron detection. Compensating the PMT performances, cost, radioactivity, the JUNO ordered 15000 pic 20-inch MCP-PMT from the NNVT in Dec.2015. The MCP-PMT collaboration group finished to build the mass production line and batch test facility in Nanjing in 2016. From 2017 to 2019, all the 20-inch PMTs will be produced and tested one by one in NNVT for JUNO. This presentation will talk about the R&D, the mass production and batch test result of the 7K pieces of MCP-PMT prototypes for JUNO. Further more, the QE of this type of MCP-PMT is improved from 28% to 34%@410nm in 2018, and this new technology has already used on the PMT mass production. And also in 2018, another Flower-liked MCP-PMT was designed with the TTS less than 5ns, and this new type of 20 inch MCP-PMT has already evaluated by the PMT group in LHAASO and HyperK.

Speaker: Dr Sen QIAN (IHEP,CAS)

Slides NNN2018--MCP-PMTs--V5.0.pdf

15:30 Coffee break

16:00 Review of photo-detectors for huge detectors

Speaker: Prof. Liangjian Wen (Institute of High Energy Physics, Chinese Academy of Sciences)

Slides PMTchoice_NNN2018_Wen.pdf

16:20 Large Area Picosecond Photo-detectors

Speaker: Alexey Lyashenko (Incom Inc)

Slides 2018-11-01_NNN18_presentation_FINAL.pdf 2018-11-01_NNN18_presentation_FINAL.pptx

16:40 20" PMT development for Hyper-K

Speaker: Jun Kameda (University of Tokyo)

Slides kameda-NNN18-HKPMT-upload.pdf

16:55 Electronics for E61 multi-PMTs

We propose using multi-PMTs (mPMTs) for the photosensors for the E61 near detector (as well as a fraction of Hyper-K photosensors). Our mPMT design has nineteen 3" PMTs enclosed in water-tight pressure vessel, providing excellent spatial imaging of the Cherenkov light ring. This talk will describe the design of the signal digitization electronics for the E61 mPMTs. We will start by explaining the key requirements that drive the design, including the requirements for precision hit time and charge resolution; these requirements are balanced by equally strong requirements for low power, low cost and high reliability electronics. E61 also has additional requirements related to handling the large rate of pile-up events from the high-intensity J-PARC neutrino beam. We will describe an electronics designs based on low power 100-200MSPS ADC with on-board signal processing in the FPGA. We will also briefly describe our work on HV design for the PMTs.

Speaker: Dr Thomas Lindner (TRIUMF)

Slides lindner_mpmt_digitization_e61.pdf lindner_mpmt_digitization_e61.pptx

17:10 The T2K ND280 upgrade project

Speaker: Etam Noah (University of Geneva)

Slides ND280Upgrade_NNN18_1Nov2018.pdf

14:00 → 17:30 Systemtics and Analysis technique Parallel

Remote connection: https://zoom.us/j/381846479

14:00 Deep Learning Techniques Overview

Speaker: Dr Terao Kazuhiro (SLAC National Accelerator Laborator)

Slides 2018_11_01_MLonUBdata.pdf 2018_11_01_NNN18_DLP.pdf

14:30 Machine Learning Techniques on NOvA

The NOvA experiment has made measurements of the disappearance of νµ and the appearance of νe in the NuMI beam at Fermilab including the neutrino mass hierarchy and the CP violating phase. Key to these measurements is the application of machine learning methods for identification of neutrino flavor and energy reconstruction. These methods require rigorous validation to both understand and develop. I will present applications of machine learning used in NOvA analyses as well as data driven techniques for validation.

Speaker: Dr Micah Groh (Indiana University)

Slides NNN2018_11_01_grohmc.pdf

14:50 Machine Learning at MINERvA

Speaker: Dr Anushree Ghosh (Universidad Técnica Federico Santa María)

Slides NNN_2018_AnushreeGhosh.pdf

15:10 Machine Learning in MicroBooNE

Speaker: Prof. Taritree Wongjirad (Tufts University)

Slides 2018_11_01_MLonUBdata.pdf

15:30 Coffee Break

15:55 Systematics, calibration and analysis techniques in JUNO

The Jiangmen Underground Neutrino Observatory(JUNO) is a liquid scintillator detector aiming to determine the neutrino mass hierarchy and to perform precision measurements of neutrino mixing parameters by detecting reactor antineutrinos at a baseline of 53 km. JUNO physics programme also serves for the detection of supernova neutrinos, geoneutrinos and solar neutrinos. In order to achieve the main physics goals, we face the challenge of achieving the unprecedented energy resolution < 3% at 1 MeV. Introducing 26K 3'' PMTs brings the multi-calorimeter concept into the reality to help event reconstructions and reduction of the non-stochastic component in the energy response. In this talk, we will share ideas of how to treat systematics uncertainties, calibration and analysis techniques to tackle challenges in JUNO.

Speaker: Prof. Jian Tang (Sun Yat-Sen University)

Slides 20181101_NNN2018_JUNO.pdf

16:20 Systematic errors in Borexino Solar and Geoneutrino Analyses

Borexino is the world radio-purest large-volume liquid-scintillator detector placed at the Laboratori Nazionali del Gran Sasso in Italy. Since the start of its data taking in May 2007, it has provided several measurements of solar neutrinos and geoneutrinos. Recently, Borexino has released new results concerning comprehensive spectroscopy of the pp-chain solar neutrinos. The talk will brifely summarize the latest Borexino results and will then focus on the description of the main sources of the systematic uncertainties. Since both solar and geoneutrino analyses are important scientific goals of the future large-volume liquid-scintillator experiments, particular attention will be payed to the description of methods developed for the estimation of the dominant systematic errors.

Speaker: Prof. Livia Ludhova Ludhova (Forschungszentrum Juelich)

Slides Ludhova_Borexino_NNN2018.pdf

16:45 Systematic Uncertainties for Atmospheric Neutrino Measurements

Speaker: Prof. Juan Pablo Yañez (University of Alberta)

Slides yanez_NNN_atmoNus_v4.pdf

17:10 Test Beam Experiments for the Future Generation of LBL Experiments

The next generation of LBL experiments is currently under preparation. These future experiments will profit from new and high intensity neutrino beams which will allow very large samples of data to be collected. A deep understanding and strong constraint of the systematic uncertainties is thus mandatory to achieve precision measurements and to allow the experiments to fulfil their physics goals. In this talk I review some of the recent test-beam experiments which address key topics for the preparation of the future generation of LBL experiments.

Speaker: Stefania Bordoni (CERN)

Slides NNN2018_bordonis.pdf

18:00 → 19:40 Poster session and Reception

18:00 Update on the $hep$ solar neutrino limit from the three-phase SNO dataset

The spectrum of solar neutrinos from the $pp$ chain has been studied in depth by a variety of underground detectors. However, neutrinos from the $hep$ reaction (${}^3$He $+$ $p^+$ $\rightarrow$ ${}^4$He $+$ $e^+$ + $\nu_e$) remain unobserved due to the small theoretical branching ratio ($2\times10^{−7}$ per $pp$ termination). The SNO detector has a unique sensitivity to neutrino energies above the ${}^8$B spectrum endpoint (~15 MeV) through the $hep$ spectrum endpoint (~18.8 MeV) due to the charged current interaction on deuterium, which allows a more precise extraction of the underlying neutrino energy spectrum. The SNO collaboration previously published a world-leading limit in 2006 only using the first heavy water phase with 306.4 days of data. An updated status report on the analysis of the $hep$ neutrino spectrum from all three phases of SNO (1170.2 days) will be presented in this poster.

Speaker: Dr Karin Gilje (University of Alberta)

Slides Gilje_SNO_hep_speedtalk.pdf

18:03 Neutron detection in the water phase of SNO+ experiment

Efficient detection of neutrons in water is important because of its physics applications. For example, neutron detection could enable the detection of neutrinos via inverse beta decay or help suppress neutron-accompanied backgrounds. However, observing neutrons in pure water Cherenkov detectors is a challenging task due to the low energy of the 2.2 MeV gamma emitted upon capture. SNO+ is a multipurpose neutrino experiment that began taking data with pure water in May, 2017, and will soon begin filling scintillator. A first observation of reactor neutrinos in water may be achievable with the low trigger threshold of the SNO+ detector. We present studies of neutron detection in the SNO+ experiment based on an AmBe calibration source.

Speaker: Dr Yang Zhang (University of Alberta)

Slides YangZhang_neutron_nnn18_slide.pdf

18:06 LEGEND: The Large Enriched Germanium Experiment for Neutrinoless Double-Beta Decay

The lepton number violating process of neutrinoless double-beta decay could result from the physics beyond the Standard Model needed to generate the neutrino masses. Taking different approaches, the current generation of ${}^{76}$Ge experiments, the MAJORANA DEMONSTRATOR and GERDA, lead the field in both the ultra-low background and energy resolution achieved. The next generation of neutrinoless double-beta decay experiments requires increased mass and further reduction of backgrounds to maximize discovery potential. Building on the successes of the MAJORANA DEMONSTRATOR and GERDA, the LEGEND collaboration has been formed to pursue a tonne-scale ${}^{76}$Ge experiment, with discovery potential at a half-life beyond $10^{28}$ years. The collaboration aims to develop a phased neutrinoless double-beta decay experimental program, starting with a 200 kg measurement using the existing GERDA cryostat at LNGS. I will discuss the plans and physics reach of LEGEND, and the combination of R&D efforts and existing resources being employed to expedite physics results.

Speaker: Micah Buuck (University of Washington - Seattle)

Slides Buuck_LEGEND_NNN18_vertical.pdf

18:09 Energy Reconstruction in NOvA with Regression Convolutional Neural Networks

NOvA is a long-baseline accelerator neutrino oscillation experiment. It uses the upgraded NuMI beam from Fermilab and measures electron neutrino appearance and muon neutrino disappearance at its Far Detector in Ash River, Minnesota. NOvA aims to resolve the mass hierarchy, the CP violation and the octant of theta23. We will focus on the development and application of deep learning to the reconstruction tasks at NOvA. NOvA is a pioneer to use convolutional neural networks for event classification and particle identification in the neutrino community. Recently, we developed regression convolutional neural networks to estimate electron neutrino energy with direct raw detector pixel inputs. Compared with kinematics-based energy reconstruction, this method shows a significantly better energy resolution. The regression CNN also shows smaller systematic uncertainties from the simulation of neutrino interactions.

Speaker: Prof. Jianming Bian (UC Irvine)

Slides NNN2018_RegCNNE.pdf NNN2018_regCNNE_Talk.pdf

18:12 R&D on Water-based Liquid Scintillator for the Theia experiment

Recent developments in the field of liquid scintillator chemistry and fast-timing photosensors paved the way for a new generation of large-scale detectors, such as Theia, capable of tackling a broad range of physics issues. Water-based Liquid Scintillator (WbLS) is a novel detection medium that combines the advantages of pure water, including low attenuation, accurate direction reconstruction, and low cost, and those of liquid scintillator, including high light yield and low-threshold detection. A lot of effort is currently being put into developing WbLS and understanding its intrinsic properties. This poster will focus on two major R&D focuses: the continuous recirculation and filtration of WbLS using nanofiltration and the separation of Cherenkov and scintillation light, both emitted by WbLS thanks to its water and scintillator components, and its use as an energy reconstruction and particle identification tool.

Speaker: Dr Vincent Fischer Fischer (University of California at Davis)

Slides Theia_NNN2018_short_poster_pres_FISCHER.pdf

18:18 HALO-1kt: A massive helium and lead observatory for supernova neutrinos

HALO-1kt is a supernova neutrino observatory which would leverage 1000 tonnes of lead from the decommissioned OPERA experiment to create a low cost and low maintenance neutrino detector. It is to be sited at LNGS, and is intended to operate as a scaled up version of the original HALO. Due to its sensitivity to $\nu_e$, it is complementary to water Cherenkov and liquid scintillator-based detectors. Design is currently in progress.

Speaker: Dr Matthew Geske (Gonzaga University)

18:21 Model-independent reconstruction of full flavor supernova neutrino spectra in future large liquid-scintillitor detectors

The fortunate observation of neutrino events from the SN1987A explosion in the Large Magellanic Cloud is a milestone in both neutrino physics and neutrino astronomy. The sparse data, however, can't provide us the accurate energy spectra of supernova neutrinos. Currently many worldwide neutrino detectors runnning or under construction have better detection capbilities of core collapse supernova neutrinos. For example the future liquid-scintillator detector with a 20kton designed fiducial mass of JUNO, can register about 5000 events from the inverse beta decay given a typical SN at 10kpc. Here we propose a model-independent combined method gathering the events from inverse beta decay, neutrino-proton elastic scattering as well as neutirno-electron elastic scattering to unfold the true energy spectra of full flavor supernova neutrinos directly. Many different numerical models are also applied to check the validity of the method. Furthermore, even for a more complicated scenario with flavor conversion, this combined method shows a great potential to reconstruct the true neutrino spectra emitted from the core of supernove. One trial with flavor conversion from MSW resonance effect at the enevolope of supernova is illustrated in this work.

Speaker: Dr Huiling Li (Institute of High Energy Physics)

18:24 Search for Supernova Neutrinos with the LVD Experiment

The Large Volume Detector (LVD) is continuously taking data since 1992 at the INFN Gran Sasso National Laboratory (Italy). The experiment, 1 kton of liquid scintillator organized in 840 counters, is sensitive in the neutrino channels to burst expected from a gravitational stellar collapse. Full detection probability is foreseen in the case of an unexpected event in the Milky Way, d<25 kpc. At greater distances, up to 60 kpc, the trigger efficiency is limited but always better than 50%. We have searched, both in on-line and off-line mode, for impulsed neutrino signals in LVD data collected in 26 years of operations. No evidence of such a signal has been found either in standalone mode or in coincidence with other neutrino detectors. The 90% c.l. upper limit on the rate of core collapse and failed supernova explosions out to distances of 25 kpc is found to be 0.09 event/year. Methods and results of this analysis will be here discussed.

Speaker: Dr CARLO FRANCESCO VIGORITO (UNIVERSITY and INFN , Torino, Italia)

18:27 The Central Detector of JUNO

Jiangmen Underground Neutrino Observatory (JUNO) is an experiment under construction in Southern China. It aims to determine the neutrino mass hierarchy, to measure precisely the oscillation parameters by detecting reactor neutrinos from nuclear power plants, to observe supernova neutrinos, to study the atmospheric, solar neutrinos and geo-neutrinos, and to perform exotic searches. As the core detector of JUNO, the central detector (CD) is designed to measures reactor antineutrinos via inverse beta decay. The CD system consists of an inner transparent sphere of 35.4 m in diameter and an outer support structure of 40.1 m in diameter. The inner sphere is made of acrylic which contains the 20 kilotons of liquid scintillator (LS). The outer support structure is made of stainless steel which can hold 18,000 20” PMTs and 25,000 3” PMTs to detect the photons from LS.And the goal for its energy resolution is 3%/√E which will reach the highest level in the world. Several challenges have been overcome for the largest liquid scintillator detector in the world,such as the compatibility of the sphere material, the mechanics of the stainless steel structure and the CD prototype.

Speaker: Mr Yatian Pei (The Institute of High Energy Physics (IHEP))

Poster peiyt@ihep.ac.cn

Slides peiyt@ihep.ac.cn

18:33 Detection of electron anti-neutrino at Jinping

The China Jinping Underground Laboratory (CJPL) with the lowest cosmic-ray muon flux and the lowest reactor neutrino flux of any laboratory is ideal to carry out low-energy neutrino experiments for solar neutrino, geo-neutrino and supernova neutrino physics studies. At present, a 1-ton prototype for Jinping Neutrino Experiment of which the target material is liquid scintillator is deployed in CJPL and Monte Carlo study for detectors in future is in progress. The R&D efforts are made particularly on construction of low background facility, including the measurements of radiative backgrounds, the simulation studies of all materials to be used in the proposed detectors. In that poster, I will present the progress of the studies together with the evaluation of geo-neutrino signal in a few hundred ton scale of Gd-loaded liquid scintillator detector.

Speaker: Mr Jinjing Li (Tsinghua University)

Poster JinpingPoster_JinjingLi.pdf

Slides JinpingPoster_JINJINGLI.pdf

Friday, 2 November

09:00 → 12:35 Plenary

Remote connection: https://zoom.us/j/741363718

09:00 SK and SK-Gd (solar and supernova)

Speaker: Dr Michael Smy (University of California, Irvine)

Slides nnn18.pdf

09:20 Daya Bay/Reno/Double Chooz

Speaker: Prof. Henry Band (Yale)

Slides Band_NNN18.pdf

09:45 SNO+

Speaker: Dr Morgan Askins (UC Berkeley)

Slides SNOPlus_NNN.pdf

10:05 Review of Double Beta Decay Experiments

Speaker: Dr Azusa Gando (RCNS, Tohoku University)

Slides NNN18_dbd_review_AzusaGando_v2.pdf

10:30 Refreshment Break

11:00 HyperK

Speaker: Dr Adrian Pritchard (University of Liverpool)

Slides NNN2018_HyperK_APritchard_Final.pdf

11:25 DUNE

Speaker: Prof. Alexandre Sousa (Cinsinnati)

Slides Sousa_DUNE_Project_NNN18.pdf

11:50 JUNO

Speaker: Prof. Alberto Garfagnini (INFN Padova)

Slides ag_juno.pdf

12:15 Poster talks (2)

Poster talks Fri, Nov 2: - HALO-1kt: A massive helium and lead observatory for supernova neutrinos - GESKE, Matthew - Model-independent reconstruction of full flavor supernova neutrino spectra in future large liquid-scintillitor detectors - LI, Huiling - Search for Supernova Neutrinos with the LVD Experiment - VIGORITO, Carlo Francesco - The Central Detector of JUNO - PEI, Yatian - Detection of electron anti-neutrino at Jinping - LI, Jinjing

Speakers: Dr CARLO FRANCESCO VIGORITO (UNIVERSITY &amp; INFN , Torino, Italia), Dr Huiling Li (Institute of High Energy Physics), Mr Jinjing Li (Tsinghua University), Dr Matthew Geske (Gonzaga University), Mr Yatian Pei (The Institute of High Energy Physics (IHEP))

Slides

• HALO-1kt-nnn18.pptx
• JinpingPoster_JINJINGLI.pdf
• NNN18_LHL.pdf
• peiyt@ihep.ac.cn
• VIGORITO_@_NNN18.pdf

12:35 → 14:00 Lunch Break

14:00 → 17:30 Detector parallel

14:00 The Astroparticle and Exotic Physics program of MicroBooNE

MicroBooNE is a liquid argon time projection chamber (LArTPC) with an 85-ton active mass situated on the Booster Neutrino Beam at Fermilab. Some of the experiment goals are investigating the excess of electron-like events observed in MiniBooNE, performing cross-section measurements of neutrino interactions in argon and gaining knowledge about the operation and the detector physics of LArTPCs in preparation for the future Deep Underground Neutrino Experiment (DUNE). In addition, MicroBooNE can be used to search for rare events and physics beyond sterile neutrino oscillations. This talk will focus on two topics: the search for heavy sterile neutrinos with mass in the hundreds of MeVs range, produced through mixing with active neutrinos, and decaying within the detector; and the development of a novel approach for detecting core-collapse supernova neutrinos based on a parallel continuous readout stream and an alert from the Supernova Early Warning System (SNEWS) that triggers a search back in the continuous stream.

Speaker: Dr Crespo-Anadón José I. (Columbia University Nevis Laboratories)

Slides 20181102_JICrespoAnadon_NNN2018_v2.odp 20181102_JICrespoAnadon_NNN2018_v2.pdf

14:20 Sterile neutrino searches with the ICARUS detector

The 760 ton ICARUS T600 detector performed a successful three-year physics run at the underground LNGS laboratories studying neutrino oscillations with the CNGS neutrino beam from CERN, and searching for atmospheric neutrino interactions. ICARUS performed a sensitive search for LSND like anomalous $\nu_e$ appearance in the CNGS beam, which contributed to constrain the allowed parameters to a narrow region around $\Delta$m$^2$ $\sim$ eV$^2$ , where all the experimental results can be coherently accommodated at 90% C.L. After a significant overhauling at CERN, the T600 detector has now been placed in its experimental hall at Fermilab. It will be soon exposed to the Booster Neutrino Beam to search for sterile neutrino within the SBN program, devoted to definitively clarify the open questions of the presently observed neutrino anomalies. The proposed contribution will address ICARUS achievements, its status and plans for the new run and the ongoing analyses also finalized to the next physics run at Fermilab.

Speaker: Dr Hannah Rogers (Colorado State University)

Slides Sterile_Neutrino_Searches_with_the_ICARUS_Detector.pdf

14:40 ProtoDUNE SP R&D

ProtoDUNE-SP is the single-phase DUNE Far Detector prototype that was recently built at CERN and is in operation since September 2018. ProtoDUNE-SP is a crucial part of the DUNE effort towards the construction of the first DUNE 10-kt fiducial mass far detector module (17 kt total LAr mass), but also a significant experiment in its own right. With a total liquid argon (LAr) mass of 0.77 kt, it represents the largest monolithic single-phase LArTPC detector to be built to date. In this talk I will give an overview on the construction and commissioning phase of the detector. Furthermore, preliminary results based on the first data collected during beam and cosmic runs will be discussed.

Speaker: Ms Francesca Stocker (CERN)

Slides NNN18_protoDUNE_stocker.pptx

15:00 ArgonCube: LArTPC R&D for the DUNE Near Detector

Speaker: James Sinclair (U. Bern)

Slides NNN_ArgonCube.pdf

15:15 R&D on pixel readout for DUNE near detector

Speaker: Dan Dwyer (LBNL)

Slides DDwyer_LArPix_NNN_02Nov2018.pdf

15:30 Coffee break

16:00 DUNE electronics, trigger and DAQ

Deep Underground Neutrino Experiment (DUNE), which is consist of two neutrino detectors placed near and far of Fermilab, will address several questions in neutrino physics. In addition, It intends to facilitate the study of neutrinos from the supernova and search for proton decay. The liquid argon time projection chamber (LArTPC) technology has been adopted to detect the neutrino interactions with argon atoms from neutrinos beams produced in Fermilab arriving at expected times to Sanford underground research facility. The LArTPC can detect neutrinos with energies as low as a few MeV to GeV, by collecting the ionized electrons and photons produced by the interactions of charged particles in the liquid argon. The combination of sample rate and a number of channels in TPC and photodetector readouts produce a very large volume of the data stream. In addition to the volume of data, the rarity of the presumable supernova's neutrinos and proton decay events will need more design requirements for the DUNE DAQ architecture like compression algorithms, an online trigger system and algorithms. In this talk, I will review DUNE electronics from DAQ front-end read-out to the trigger along with the requirements and challenges that shaped the DUNE far-detector DAQ architecture.

Speaker: Dr Babak Abi (University of Oxford)

Slides DUNE_DAQ_NNN18_Babak.pdf

16:20 DUNE signal processing

Speaker: Dr Hannah Rogers (Colorado State University)

Slides DUNE_Single_Phase_Signal_Processing.pdf

16:40 First Results From ARIADNE: A 1-ton dual-phase LArTPC with optical readout.

ARIADNE is a 1-ton two-phase liquid argon (LAr) time projection chamber (TPC) featuring a novel optical readout method. The detector uses a Thick Gas Electron Multiplier (THGEM) in the extraction region to generate secondary scintillation light which is imaged using 4 Electron-Multiplying (EM)CCD cameras to produce high resolution images of particle interactions within the detector. This approach has many potential improvements over current readout techniques. A combination of the high level of gain achievable in the THGEM and the single-photon sensitivity of the EMCCDs give’s sensitivity at low energies. The EMCCDs have 1 million pixels each giving the detector its high resolution. Using optical readout also allows the readout electronics to be positioned externally to the cryostat, reducing the need for cold electronics and giving easy access for live maintenance and upgrades. ARIADNE underwent testing and commissioning runs in Liverpool at the end of 2017, followed by a beam line test at the CERN East Area in 2018. This was the first beam line test of an optical dual phase TPC for a detector of this scale. Initial results from these tests will be presented. http://hep.ph.liv.ac.uk/ariadne

Speakers: Mr Adam Roberts (University of Liverpool), Dr Kostas Mavrokoridis (University of Liverpool)

Slides ARIADNE.pptx

17:00 Light detection in DUNE

Speaker: Zelimir Djurcic (Argonne National Lab)

Slides Djurcic_NNN_2018_s.pdf

14:00 → 17:30 Systemtics and Analysis technique Parallel

Remote connection: https://zoom.us/j/381846479

14:00 Neutrino Interaction Uncertainties in Long Baseline Oscillation Experiments

Uncertainties on neutrino-nucleus scattering cross sections are among the dominant systematics in long-baseline neutrino oscillation experiments, despite partial cancellation from near detector measurements. I will review the most important issues facing current experiments, and discuss what is required for next generation precision measurements.

Speaker: Dr Chris Marshall (Lawrence Berkeley National Laboratory)

Slides ChrisMarshall_NNN18_nuXSsyst.pdf

14:30 DUNE Analysis Methods and Systematic Uncertainties

The twin challenges facing the DUNE long-baseline analysis are to extract the maximum statistical power from the Far Detector data while minimizing the impact of systematic uncertainties. The liquid argon TPCs that make up the DUNE Far Detector will provide outstanding spatial resolution, and should allow neutrino flavours to be separated with high efficiency and purity. However, taking full advantage of this information requires improvements in the state-of-the-art in pattern recognition and particle identification. I will describe our reconstruction algorithms, and the various deep-learning techniques we are employing in pursuit of this goal. With the large datasets expected, the second challenge, to minimize systematic uncertainties grows in importance. I will discuss our main sources of uncertainty, how we plan to evaluate their impact, and the ways in which the analysis procedures are intended to mitigate them.

Speaker: Dr Christopher Backhouse (University College London)

Slides dune_systs.pdf

14:55 Systematics in Hyper-Kamiokande experiment

Hyper-Kamiokande is a next-generation underground water-Cherenkov detector, which is to be constructed from 2020. The physics program of Hyper-K includes a nucleon-decay search, a CP-phase measurement in the lepton sector with an accelerator neutrino beam, the determination of the neutrino mass hierarchy with atmospheric neutrinos, and the observation of astrophysical neutrinos. Thanks to the large water volume of the detector and planned beam power upgrade of J-PARC, the CP-phase measurement is expected to be limited by systematics rather than statistics after several years of operation. The main sources of systematics are the neutrino beam flux, neutrino-nucleus interaction modeling, final-state and secondary interactions of hadrons, and detector mis-modeling. In this talk, our current understanding of these uncertainties, ongoing work including efforts by the T2K and Super-K collaborations, and future strategies are presented.

Speaker: Tomoyo Yoshida (Tokyo Institute of Technology)

Slides NNN18_HKsyst_v1.pdf

15:20 Analysis and Systematic Uncertainty Experience from MicroBooNE

The MicroBooNE detector is a Liquid Argon Time Projection Chamber (LArTPC) with an 85-ton active mass, situated at Fermilab in the Booster Neutrino Beam and designed to study short-baseline neutrino physics. Its main physics goals include the investigation of the anomalous excess of electron-like events observed in MiniBooNE, the measurement of low-energy, neutrino-argon cross-sections and the development of liquid argon technology for the future experiments of the Short-Baseline Neutrino (SBN) and DUNE physics programs. This talk will review the experience gained by MicroBooNE in producing physics results with a LArTPC detector, recent results and the strategy for estimating systematic uncertainties.

Speaker: Mr Salvatore Davide Porzio (The University of Manchester)

Slides NNN_Systematics1.pdf

15:45 Coffee Break

16:10 Uncertainties from Neutrino Interactions at T2K

The oscillation analysis at T2K, even with limited statistics, has needed to improve and constrain the model of neutrino interactions in order to reach its current sensitivity. I review the interaction model, some of the most important uncertainties in the model for the oscillation analysis, and techniques for constraining those uncertainties through measurements of neutrino interactions.

Speaker: Kevin McFarland (University of Rochester)

Slides T2K_Interactions_McFarland_NNN_2018_v4.pdf

16:35 Details of Systematic Uncertainties at NOvA

I will present the details of the systematic uncertainties at NOvA for the latest measurements of both (anti)neutrino electron appearance and muon disappearance, as well as the systematic uncertainties associated with recent cross section results. NOvA is a long-baseline neutrino experiment which utilizes two basically fully active, finely segmented, liquid scintillator detectors: a Near Detector located at Fermilab, IL, and a Far Detector located in Ash River, MI, and situated roughly 14 mrad off Fermilab's NuMI beam. Using this narrow-band beam of mostly muon neutrinos we study the oscillation of these neutrinos over the 810 km baseline, which can be interpreted to give insights into the neutrino mass ordering, CP violation in the neutrino sector, and the flavor content of the third neutrino mass eigenstate, as well as tests of the three-neutrino paradigm. Using the high statistics neutrino sample in the Near Detector we can also make precision cross section measurements.

Speaker: Dr Louise Suter (Fermi National Accelerator Laboratory)

Slides NNN_systematics_NOvA_suter.pdf

17:00 Interaction Modeling Uncertainties at MINERvA

MINERvA began its cross section measurement program with a default model that looks very different than the used in its most recent measurement. I summarize the improvements and the measurements that have driven those changes. Recent data highlights areas in need of future refinement. I also discuss how the results of these improvements may be utilized by other experiments for their modeling.

Speaker: Kevin McFarland (University of Rochester)

Slides MINERvA-interactions-NNN2018.pdf

18:30 → 21:00 Banquet

Saturday, 3 November

08:50 → 12:30 Plenary

Remote connection: https://zoom.us/j/741363718

09:00 Systematic Uncertainty in Future Neutrino Oscillation Experiments

Speaker: Prof. Michael Wilking (Stony Brook University)

Slides NNN_Systematics_Wilking.pdf

09:25 HyperK Near Detectors

Speaker: Dr John Walker (Winnipeg)

Slides jwalker_HKND_NNN2018.pdf

09:45 DUNE Near Detectors

Speaker: Dr Chris Marshall (LBNL)

Slides ChrisMarshall_NNN18_DUNEND.pdf

10:05 Short Baseline Neutirno Experiments

Speaker: Brooke Russell (Yale University)

Slides Russell_NNN_2018.pdf

10:30 Refreshment Break

11:00 Ultra-high energy neutrinos

Speaker: Prof. Nathan Whitehorn (UCLA)

Slides nnn2018.pdf

11:25 KM3NeT

Speaker: Christine Nielsen (APC)

Slides talk_nnn2018_cnielsen_km3net.pdf

11:45 IceCube Gen2

Speaker: Dr Joshua Hignight (Alberta)

Slides gen2_hignight.pdf

12:05 WATCHMAN

Speaker: Prof. Christopher Mauger (University of Pennsylvania)

Slides Mauger_WATCHMAN_NNN18v5.pdf

12:30 → 14:00 Lunch Break

14:00 → 18:00 Plenary

Remote connection: https://zoom.us/j/741363718

14:00 Solar and Supernova neutrinos (present and future)

Speaker: Erin O'Sullivan (Stockholm University)

Slides NNN2018_eosullivan.pdf

14:25 Jingping

Speaker: Prof. Jian Tang (Sun Yat-Sen University)

Slides 20181103_NNN2018_CJPLnu.pdf

14:45 THEIA

Speaker: Prof. Gabriel Orebi Gann (UC Berkeley / LBNL)

Slides 2018-11-03_Theia_NNN.pdf

15:05 ANNIE

Speaker: Dr Vincent Fischer Fischer (University of California at Davis)

Slides ANNIE_NNN2018_2018-11-03_FISCHER.pdf

15:30 Refreshment Break

16:00 Summary of the Detector Parallel session

Speaker: Dr Fabrice Retiere (TRIUMF)

Slides NNNSummaryNov2018.pdf

16:25 Summary of the systematics and analysis technique parallel

Speaker: Dr Mark Hartz (Kavli IPMU (WPI), University of Tokyo/TRIUMF)

Slides nnn_2018_analysis_systs_summary.pdf

16:50 Workshop summary

Speaker: Prof. Masayuki Nakahata (ICRR Tokyo)

Slides summary-NNN2018-nakahata-181103.pdf

17:15 Report from the steering committee

Speaker: Prof. Chang Kee Jung (Stonybrook)

Slides NNN_Steering-Comm_report_Jung.pdf

17:25 Next NNN

Speakers: Prof. David Martinez Caicedo (South Dakota School of Mines and Technology), Prof. David Martinez Caicedo (South Dakota School of Mines and Technology)

Slides NNN2019-Martinez-Tapia.pdf

17:35 End of the workshop

Sunday, 4 November

09:00 → 12:00 TRIUMF tour

The shuttle bus will leave at 8am at Blue Horizon and 8:15am at Marriott residence. We will provide more details later.
The return bus will leave TRIUMF at noon to downtown and Canada line station. For those of you who need to catch earlier flight, we can arrange a taxi. It is also possible to take public transit, but you will have to walk from 16th avenue at Wesbrook Mall (~10 minutes walk) due to the marathon event taking place on Nov.4.

There are a few points to keep in mind:
- The day-light saving time ends on Nov.4 early in the morning. This means you
can sleep in an extra one hour on Nov.4.
- The bus to TRIUMF will not be running due to the marathon event closing the marine drive.
- Please avoid wearing high heels during the tour for safety reason.
- Please avoid wearing short skirt as you will use some steep stairs.
- You can carry a backpack, but not a suit case. You will be able to leave the
suitcase in the auditorium where we give a safety instruction.

After the tour, you could also have a chance to walk the trails in the forest behind TRIUMF (Pacific Spirit Regional Park) or visit UBC Anthropology Museum, Nitobe garden, and botanical garden. TRIUMF cafeteria will be closed on Sunday, but there are restaurants and a supermarket near Wesbrook Mall and 16th.