WNPPC2023 - 60th Winter Nuclear Particle Physics Conference

Session

February 19 Morning Session

19 Feb 2023, 08:30

KC 303 (Banff Centre)

Conveners

February 19 Morning Session: Nuclear Physics 2

• Gwen Grinyer (University of Regina)

February 19 Morning Session: Computation & Instrumentation

• David Curtin (University of Toronto)

February 19 Morning Session: Awards and Closing Remarks

• There are no conveners in this block

89. Using Neutrons for Material Research

Dr Marcella Berg (University of Regina)

19/02/2023, 08:30

Nuclear Physics

Invited Oral

Neutrons are subatomic particles with no net electric charge, which means that they generally can penetrate deeper into matter than other subatomic particles. The interaction between neutrons and matter can be used to gather information about bulk characteristics of materials by evaluating the scattered neutrons. This opens a whole assortment of possible physics knowledge that can be acquired...

2. The KDK Experiment: A novel measurement of ${}^{40}$K for rare-event searches and geochronology

Lilianna Hariasz (Queen's University)

19/02/2023, 09:00

Nuclear Physics

Contributed Oral

Potassium-40 (${}^{40}$K) is a naturally-occurring, radioactive isotope impacting understanding of nuclear structure, geological ages spanning timescales as old as the Earth, and rare-event searches including those for dark matter and neutrinoless double-beta decay. The long-lived ${}^{40}$K radionuclide undergoes electron capture decays to either the excited or ground state of its Ar daughter, of...

9. Constraining the 90Sr Neutron Capture Rate with the Short-Lived 91Sr Nucleus

Beau Greaves (University of Guelph)

19/02/2023, 09:15

Nuclear Physics

Contributed Oral

Recent neutron-star merger observations have provided r-process abundance constraints, which has led to significant attention towards additional neutron-capture processes such as the i-process and n-process. Working between the rates and environmental neutron densities of the r-process and s-process, their reaction pathways and abundance contributions are not yet fully characterized. Operating...

25. How to consistently use modern nuclear forces in an ab initio technique

Ryan Curry (University of Guelph)

19/02/2023, 09:30

Nuclear Physics

Contributed Oral

One of the challenges faced while studying the nuclear many-body problem is the nature of the nucleon-nucleon interaction. The full details are described by the theory of Quantum Chromodynamics (QCD), but for realistic calculations approximate models must be used. Historically these have been phenomenological potentials fit to experimental data. However, in recent decades, models for the...

57. Development of the Detector Array for Energy Measurement of Neutrons (DAEMON)

Zarin Tasnim Ahmed (University of Guelph)

19/02/2023, 09:45

Nuclear Physics

Contributed Oral

As one moves away from stable isotopes and deeper into the neutron-rich region, the likelihood of β-delayed neutron (βn) emission decay increases. The ability to understand the neutron emission probabilities and the neutron energy spectrum can reveal highly sensitive detail of the nuclear structure that a conventional β-decay study using only γ-ray detection cannot. We propose to build the...

16. Global Analysis of the Protons Elastic Form Factors in the Space-like Region

Craig McRae (University of Manitoba)

19/02/2023, 10:00

Nuclear Physics

Contributed Oral

The response of the proton to elastic scattering events has long been known to be described via two functions of the squared momentum transfer $Q^2$: the Sachs electric and magnetic form factors $G_E\left(Q^2\right)$ and $G_M\left(Q^2\right)$, respectively. To understand this elastic structure of the proton there are two main observables which constrain the form factors: cross section data...

67. Study of W Boson Production in Association with Two Jets using Boosted Decision Trees on Data Collected by the ATLAS Detector.

Matthew Smith (Carleton)

19/02/2023, 10:30

Particle Physics

Contributed Oral

As a fundamental interaction of the Standard Model, the electroweak production of a W boson in association with two jets in proton-proton collisions is of particular interest due to its sensitivity to vector boson fusion, a topic of high interest at the Large Hadron Collider as it’s study can yield valuable information about the anomalous triple gauge couplings. By employing a machine learning...

68. Core-collapse Supernova Constraint on the Origin of Sterile Neutrino Dark Matter via Neutrino Self-interactions

Yu-Ming Chen (Carleton University)

19/02/2023, 10:45

Physics Beyond the Standard Model

Contributed Oral

I will present a constraint on the sterile-neutrino dark matter through neutrino self-interaction inside a core-collapse supernova. The environment inside a core-collapse supernova has similar features as the early universe era where the sterile-neutrino dark matter is dominantly produced. I will start by showing how a massive scalar mediated neutrino self-interaction can affect the cooling...

43. MUTE: A Modern Calculation for Deep Underground and Underwater Muons

William Woodley (University of Alberta)

19/02/2023, 11:00

Dark Matter Searches

Contributed Oral

I present a new, open-source, pure Python program, MUTE (MUon inTensity codE) (A. Fedynitch, W. Woodley, M.-C. Piro 2022 ApJ 928 27). MUTE combines the state-of-the-art codes MCEq (Matrix Cascade Equation) and PROPOSAL (PRopagator with Optimal Precision and Optimised Speed for All Leptons) to compute cosmic ray cascades in the atmosphere and the propagation of muons through matter in separate...

14. New model on nucleation efficiency of bubble chamber detectors

Xiang Li (University of Alberta)

19/02/2023, 11:15

Dark Matter Searches

Contributed Oral

Bubble chambers using fluorocarbons or liquid noble gases are promising technologies for detecting low-energy nuclear recoils from weakly interacting massive particles (WIMPs), a potential candidate for dark matter. In this study, we used molecular dynamics simulations to determine the energy threshold in superheated liquids and Monte Carlo simulations with SRIM to obtain the bubble nucleation...