Conference on Flavor Physics and CP Violation (FPCP 2019)

Session

Parallel session 1

7 May 2019, 16:15

Bob Wright, B150

Conveners

Parallel session 1: Tuesday

• Steve Robertson

Parallel session 1: Wednesday

• Aksel Hallin

Parallel session 1: Thursday

• Bob Kowalewski (University of Victoria)

13. Search for the forbidden decays $D^0\to h{h}^{\prime }l{l}^{\prime }$ and observation of $D^0\to K^{-}{\pi }^{+}{e}^{+}{e}^{-}$

Prof. Abner Soffer (Tel Aviv University)

07/05/2019, 16:15

Rare Decays of Hadrons and Leptons

Contributed Oral

Decay modes with two oppositely charged leptons of different flavor correspond to lepton flavor violating (LFV) decays and are essentially forbidden in the Standard Model (SM) because they can occur only through lepton mixing. Decay modes with two leptons of the same charge are lepton-number violating (LNV) decays and are forbidden in the SM. Hence, decays of the form $D^0\to h{h}^{\prime }l{l}^{\prime }$ provide...

33. Implications for New Physics in b->smumu transitions after recent measurements by Belle and LHCb

Dr Dinesh Kumar (National Centre for Nuclear Research, Warsaw)

07/05/2019, 16:30

Rare Decays of Hadrons and Leptons

Contributed Oral

We present a Bayesian analysis of the implications for new physics in semileptonic b → s transitions after including new measurements of RK at LHCb and new determinations of RK∗ and RK∗+ at Belle. We perform global fits with 2, 4, and 8 input Wilson coefficients, plus one CKM nuisance parameter to take into account uncertainties that are not factorizable. We infer the 68% and 95.4% credibility...

5. Combined explanation of the B-anomalies.

Dr Jacky Kumar (University of Montreal, Montreal)

07/05/2019, 16:45

Rare Decays of Hadrons and Leptons

Contributed Oral

There are four models of tree-level new physics (NP) that can potentially simultaneously explain the $b\to s{\mu }^{+}{\mu }^{-}$ and $b\to c{\ell }^{-}\overline{\nu }$ anomalies. They are the S3, U3, and U1 leptoquarks, and a triplet of standard-model-like vector bosons (VBs). In this talk, I describe an analysis of these models with general couplings. We find that, even in this most general case,...

25. Prospects for $\tau$ lepton physics at Belle II

David Rodriguez Perez (Sinaloa University)

07/05/2019, 17:00

Rare Decays of Hadrons and Leptons

Contributed Oral

The Belle II experiment is a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric $e^{+}{e}^{-}$ collider. The design luminosity of the machine is $8\times {10}^{35}$ cm${}^{-2}$s${}^{-1}$ and the Belle II experiment aims to record 50 ab${}^{-1}$ of data, a factor of 50 more than its predecessor. From February to July 2018, the machine has completed a commissioning...

14. Measurement of hadronic cross sections with the BABAR detector

Dr Marcus Ebert (University of Victoria)

07/05/2019, 17:15

Rare Decays of Hadrons and Leptons

Contributed Oral

A program of measuring the light hadrons production in exclusive $e^{+}{e}^{-}\to$ hadrons processes is in place at BABAR with the aim to improve the calculation of the hadronic contribution to the muon $g-2$. We present the most recent results obtained by using the full data set of about 470 fb${}^{-}1$ collected by the BABAR experiment at the PEP-II $e^{+}{e}^{-}$ collider at a center-of-mass energy of...

17. Measurement of the CKM angle $\gamma$ with Belle II

Niharika Rout (IIT - Madras)

07/05/2019, 17:30

Heavy Quark Decays and CKM Metrology

Contributed Oral

The CKM angle $\gamma$ is the least well known of the angles of the unitarity triangle and the only one that is accessible with tree-level decays in a theoretically clean way. The Belle II experiment is a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric $e^{+}{e}^{-}$ collider. The accelerator has already successfully completed the first phase of...

23. Early physics prospects for radiative and electroweak penguin decays at Belle II

Dr Abi Soffer (Tel Aviv University), Justin Tan (University of Melbourne)

07/05/2019, 17:45

Rare Decays of Hadrons and Leptons

Contributed Oral

The Belle II experiment at the SuperKEKB energy-asymmetric $e^{+}{e}^{-}$ collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. The design luminosity of the machine is $8\times {10}^{35}$ cm${}^{-2}$s${}^{-1}$ and the Belle II experiment aims to record 50 ab${}^{-1}$ of data, a factor of 50 more than its predecessor. From February to July 2018, the machine has...

3. CP Violation in $\overline{B}\to D^{\ast }{\ell }^{-}\overline{\nu }$

Prof. David London (Universite de Montreal)

08/05/2019, 13:55

CP Violation in Hadrons and Leptons

Contributed Oral

At present, there are discrepancies with the predictions of the SM in $\overline{B}\to D^{(\ast )}{\ell }^{-}\overline{\nu }$ decays, suggesting the presence of new physics (NP) in $b\to c{\tau }^{-}\overline{\nu }$. Various NP models have been proposed to explain the data. In this talk, I discuss how the measurement of CP-violating observables in $\overline{B}\to D^{\ast }{\ell }^{-}\overline{\nu }$ can be used to differentiate the...

12. Test of CP violation and measurement of mixing in charm at LHCb

Tommaso Pajero (Pisa)

08/05/2019, 14:10

CP Violation in Hadrons and Leptons

Contributed Oral

The copious number of D0 decays collected by the LHCb experiment during 2011-2018 enables tests for CP violation in charm decays and measurements of the D0 mixing parameters with unprecedented precision. To take maximum advantage of these statistics, control of systematic uncertainties is becoming more and more important, and will be even more so after the planned upgrades of the LHCb...

22. Time-dependent CPV in Bs decays at LHCb

Emmy Gabriel (Edinburgh)

08/05/2019, 14:25

CP Violation in Hadrons and Leptons

Contributed Oral

Time-dependent CP-violation measurements of beauty mesons allow the determination of the mixing-induced CP-violating phases phi_s and beta. The measurement of the phase phi_s in the Bs-Bsbar system is one of the key goals of the LHCb experiment due to the sensitivity to physics beyond the Standard Model (BSM). The CP-violating phase is of interest in penguin dominated b->s transitions, in...

7. CP asymmetries in beauty & charm hadrons

Prof. Ikaros Bigi (Physics Department, University of Notre Dame)

08/05/2019, 14:40

CP Violation in Hadrons and Leptons

Contributed Oral

CP violations have been established in beauty mesons basically in two-body states, but so far not for charm mesons. Yet it is crucial to measure CP asymmetries in many-body final states -- including for beauty & charm baryons! Non-perturbative QCD gives large impact. [Of course, these results do not help us to understand the matter vs. anti-matter in our Universe.]

20. Impacts of QED radiative corrections on R(D) ratios

Dr Suzanne Klaver (INFN e Laboratori Nazionali di Frascati (IT))

08/05/2019, 14:55

CP Violation in Hadrons and Leptons

Contributed Oral

A recent paper (Phys. Rev. Lett. 120, 261804) presented a new evaluation of radiative corrections in the decay channels involved in the ratios $\mathcal{R}(D^{+})$ and $\mathcal{R}(D^0)$, which could explain part of the discrepancy between measurements and SM predictions. Using simulated events we quantify the difference between the results in this paper and Photos, which is used to simulate...

8. Results from the CUORE experiment

Benjamin Schmidt (Lawrence Berkeley National Laboratory)

09/05/2019, 17:00

Neutrino Physics and PMNS Metrology

Contributed Oral

The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta decay (0νββ) that has been able to reach the one-ton scale. The detector consists of an array of 988 TeO${}_2$ crystals arranged in a compact cylindrical structure of 19 towers. The construction of the experiment was completed in August 2016 with the...

2. Meson-Hybrid Mixing in Vector and Axial Vector Charmonium

Dr Derek Harnett (University of the Fraser Valley)

09/05/2019, 17:15

Heavy non-q\bar{q} Mesons and Pentaquarks

Contributed Oral

We investigate mixing between conventional mesons and hybrid mesons in vector and axial vector charmonium using the QCD sum-rules formalism. We compute meson-hybrid cross correlators within the operator product expansion, taking into account condensate contributions up to and including those of dimension-six as well as composite operator renormalization-induced diagrams. Using measured...

18. Exotic Quarkonium Physics Prospects at Belle II

Dr Jake Bennett (University of Mississippi)

09/05/2019, 17:30

Heavy non-q\bar{q} Mesons and Pentaquarks

Contributed Oral

The Belle II experiment at the SuperKEKB energy-asymmetric $e^{+}{e}^{-}$ collider is a substantial upgrade of the B factory facility at KEK in Tsukuba, Japan. It aims to record a factor of 50 times more data than its predecessor. The experiment completed a commissioning run in 2018, and began full operation in early 2019. Belle II is uniquely capable of studying the so-called "XYZ" particles:...

29. Sensitivity to the X(3872) total width at the Belle II experiment

Hikari Hirata (Nagoya University)

09/05/2019, 17:45

Heavy non-q\bar{q} Mesons and Pentaquarks

Contributed Oral

The Belle II experiment at the SuperKEKB energy-asymmetric $e^{+}{e}^{-}$ collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. The design luminosity of the machine is $8\times {10}^{35}$ cm${}^{-2}$s${}^{-1}$ and the Belle II experiment aims to record 50 ab${}^{-1}$ of data, a factor of 50 more than its predecessor. From February to July 2018, the machine has...