Photon polarisation in B→Kππγ decays Workshop

10 Apr 2019, 09:00 → 11 Apr 2019, 18:00 Europe/Zurich

Room Mondrian (IPHC - Strasbourg)

B→Kππγ decays offer a unique way to access the photon polarisation thanks to their intricate interference patterns. With the potential to provide very competitive constraints to the C7 Wilson coefficient, this decay is of interest to both the LHCb and Belle/Belle II collaborations. In this workshop, different approaches to measure the photon polarisation in the different B→Kππγ modes will be discussed, along with the state-of-the-art theory on the complex amplitudes involved.

The workshop will take place at IPHC in Strasbourg
and is supported by the French GDR Intensity Frontier

 

Wednesday 10 April

10:00 Introduction

1 Amplitude fit of B→Kππγ: Formalism and limitations

Speaker: Violaine Bellee (EPFL - Ecole Polytechnique Federale Lausanne (CH))

2019_04_10_KpipiGammaWorkshop.pdf

2 Amplitude fit of B→Kππγ: Method and sensitivity

Speaker: Preema Rennee Pais (EPFL - Ecole Polytechnique Federale Lausanne (CH))

Pais_kpipigWorkshop_10042019.pdf

3 Amplitude fit of B→Kππγ: Overcoming technical challenges

Speaker: Albert Puig Navarro (Universität Zürich (CH))

Challenges.pdf

12:30 Lunch

4 Photon polarisation measurements in B->Kpipigamma

Speaker: Borys Knysh (National Taras Shevchenko Univ. of Kyiv (UA))

borys_KpipiGamma_2019-04.pdf

5 B→Kππγ at Belle

Speaker: Karim Trabelsi (KEK)

kpipig_kt_strasbourg190410.pdf

15:30 Coffee break

6 B→Kππγ and K0π0γ TDCPV at Belle II

Speaker: Reem Rasheed (IPHC - Strasbourg)

Kpipiworkshop_reemrasheed.pdf

7 New B→Kππγ TDCPV at Belle

Speaker: Sviatoslav Bilokin (Institut Pluridisciplinaire Hubert CURIEN)

bilokin-b2sgamma.pdf

19:30 Dinner

Thursday 11 April

8 Study of B->Kshhγ decays at LHCb

Speaker: Boris Quintana (LPC Clermont / Université Clermont-Auvergne (FR))

KshhG_Strasbourg_v2.pdf

KshhG_Strasbourg_v2.pptx

9 Theory overview on radiative decays

Speaker: Emi Kou (LAL/IN2P3)

10:30 Coffee break

10 B-decay discrepancies: how the picture changed after Moriond 2019

Speaker: Diego Guadagnoli (LAPTh Annecy)

Guadagnoli_IPHC.pdf

11 Theoretical prospects

Speaker: Sebastien Descotes-Genon (Laboratoire de Physique Théorique d'Orsay)

strasbourg_sdg.pdf

12:20 Closing discussion

12:35 Lunch