Topics of Particle, Astro and Cosmo Frontiers (TOPAC 2023)

Session

SM/BSM

3 Jun 2023, 15:30

Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall (Tsung-Dao Lee Institute)

Conveners

SM/BSM

• Xiaodong Ma
• Jiashu Niu

5. Semileptonic Heavy-Hadron Decays in Quantum Chromodynamics

Prof. Yu-Ming Wang (Nankai University)

03/06/2023, 15:30

Talk

QCD aspects of exclusive heavy-hadron decays will be discussed with an emphasis on the perturbative factorization properties for the resulting hadronic matrix elements in the heavy quark expansion and on the systematic discussions of the distinct dynamical mechanisms governing the flavor-changing form factors beyond the leading-power approximation. Phenomenological implications of the...

79. Explaining the CDF W-mass shift and (g-2)_\mu in a Z^\prime scenario and its implications for the b \to s \ell^+ \ell^- processes

Prof. 袁 兴博 (Central China Normal University)

03/06/2023, 15:55

Talk

In the past few years, several indirect hints for New Physics beyond the SM arose in precision measurements, e.g., $(g-2)_\mu$ and the W-boson mass. In this work, we consider a model containing new vector-like Fermion partner gauged under a new $U(1)'$ symmetry. It is found that the latest CDF $m_W$ measurement and $(g-2)_\mu$ can be simultaneously accommodated. We have also considered several...

15. Z boson mixing and the mass of the W boson

Yu-Pan Zeng (Guangdong Ocean University)

03/06/2023, 16:20

Talk

We explore the possibility of explaining the W boson mass with an extra gauge boson mixing with the Z boson at tree level. Extra boson mixing with the Z boson will change the expression of the Z boson mass, thus altering the W boson mass. We explore two models in this work. We find that in the derivative portal dark matter model there are parameter spaces which can give the observed W boson...

53. A global analysis for determined and undetermined hadronic two body weak decays of anti-triplet charmed baryons

zhi-peng Xing (TDLI)

03/06/2023, 16:45

Talk