The 29th International Workshop on Weak Interactions and Neutrinos

Session

Parallel talks 1: Flavour & Precision Physics

4 Jul 2023, 14:00

A280 (Haiqin Building #6)

Conveners

Parallel talks 1: Flavour & Precision Physics

• Avelino Vicente ()

Contribution list Timetable

25. Charm meson decays at BESIII

Zehui Lu (IHEP)

04/07/2023, 14:00

Parallel talk

BESIII has collected 2.93 and 7.33 fb^-1 of e+e- collision data samples at
3.773 and 4.128-4.226 GeV, which provide the largest dataset of DDbar and DsDs pairs in the world, respectively. In this talk, we will report the updated measurements of |Vcs| in Ds+->tau+ nu and the form factor studies in
Ds+->K+K- e+ nu and pi+pi- e+ nu. In addition, we will report the most
updated amplitude...

35. CPV measurement in Bs2PhiPHi decay

Kechen Li

04/07/2023, 14:25

Parallel talk

A flavor-tagged time-dependent angular analysis of the decay Bs→ϕϕ is
performed using pp collision data collected by the LHCb experiment at the
center-of-mass energy of 13TeV, corresponding to an integrated luminosity of
6 fb−1. The CP-violating phase and direct CP-violation parameter are measured to
be ϕs=−0.042±0.075±0.009 rad and |λ| = 1.004 ± 0.030 ± 0.009, respectively, assuming the...

18. CP Violation Induced by Neutral Meson Mixing Interference

Yin-Fa Shen (Huazhong University of Science and Technology)

04/07/2023, 14:50

Parallel talk

We propose a novel kind of CP violation effect --- the double-mixing CP asymmetry --- in a type of cascade decays that involves at least two mixing neutral mesons in the decay chain. It is induced by the interference between different oscillation paths of the neutral mesons in the decay process. The double-mixing CP asymmetry has unique phenomenological value because it still exists in the...

214. Recent Results of $B$ Mesogenesis and Dark Sector at $BABAR$

Dexu Lin (Institute of Modern Physics)

04/07/2023, 15:15

Parallel talk

Searching for New Physics beyond the Standard Model is one of the most intriguing topics in modern physics, and many theoretical models predict new particles with masses well below the electroweak scale. The $BABAR$ experiment collected data at the energy of $\Upsilon(4S)$, suitable for discovering such new particles.This talk presents several recent searches for B Mesogenesis and dark sector...