2nd Topics of Particle, Astro and Cosmo Frontiers (TOPAC 2024)

Session

Higgs

31 May 2024, 13:30

414 Zhongshan Col. (中山院414)

Conveners

Higgs

• Zhuoni Qian (Hangzhou Normal University)

6. Dark photon effects with the kinetic and mass mixing in Z boson decay processes

Jin Sun (Institute for Basic Science (IBS))

31/05/2024, 13:30

Motivated by the most recent measurement of tau polarization in $Z\to \tau^+\tau^-$ by CMS, we have introduced a new $U(1)_X$ gauge boson field X, which can have renormalizable kinetic mixing with the standard model $U(1)_Y$ gauge boson field Y.
In addition to the kinetic mixing of the dark photon, denoted as $\sigma$, there may also be mass mixing introduced by the additional Higgs doublet...

65. long-lived particle search

Wei Su (SYSU)

31/05/2024, 13:55

Oral talk

The ForwArd Search ExpeRiment (FASER,), is a recently installed detector at the LHC that can detect light, long lived particles. In this work we study the prospect of detecting light CP-even and CP-odd scalars at the FASER. We develop the general formalism for the scalar production and decay from mesons at LHC, given modified couplings of the scalars to the SM particles, as well as...

22. GKZ hypergeometric systems of four-loop vacuum Feynman integrals

Prof. Hai-Bin Zhang (Hebei University)

31/05/2024, 14:20

Oral talk

We present GKZ hypergeometric systems of four-loop vacuum Feynman integrals.

19. Higgs properties and new physics beyond the SM

Prof. Bin Yan (IHEP)

31/05/2024, 14:45

The discovery of the Higgs boson at the Large Hadron Collider (LHC) has opened a new era in particle physics.
Precise measurements of the properties of the Higgs boson are crucial for addressing several fundamental questions
in the field. These include understanding the mechanism behind electroweak symmetry breaking,
unraveling the origin of particle masses, and exploring potential...