Higgs Potential 2024

Session

Direct BSM

Not scheduled

7. An SU(8) theory of SM quarks/leptons

ning chen (Nankai University)

Three-generational SM quark/lepton masses are known to be hierarchical, and the latest LHC measurements of the SM Higgs boson Yukawa couplings match well with the SM prediction. We propose a unified SU(8) framework, which can non-trivially and minimally embed three-generational SM fermions. There is only one unique SM Higgs doublet according to the origin of the non-anomalous B-L symmetry....

9. Doubly-charged Higgs production at linear colliders within a type-II seesaw model

Shuxiang Li (USTC)

We investigate the discovery prospect of doubly-charged Higgs boson at future electron collider Compact Linear Collider (CLIC). After neutrino mass generation through the Type II seesaw mechanism, we examine the small vacuum expectation value (VEV) parameter region of the type-II seesaw model in four different collision modes. In this region, $\mathcal{O}(1)$ Yukawa couplings between Higgs...

1. Recent Higgs to Dark Photon search combination and Dark Higgs search results from ATLAS

Qibin Liu (Tsung-Dao Lee Institute, Shanghai Jiao Tong Univ. (CN))

Ref. https://arxiv.org/abs/2406.01656
JHEP 08 (2024) 153
A combination of searches for Higgs boson decaying into a visible photon and a massless dark photon (H→γγ$_𝑑$) is presented using 139 fb$^{−1}$ of proton--proton collision data at a centre-of-mass energy of √s = 13 TeV recorded by the ATLAS detector at the Large Hadron Collider. The observed (expected) 95% confidence level upper limit...

33. The electroweak precision observables in the 2HDM+S

Cheng Li (Sun Yat-sen University)

The 2HDM+S is the singlet extension of Two-Higgs-Doublets Model (2HDM), where the additional singlet-like particles can accommodate more physics potential beyond the Standard Model (SM), e.g. the dark matter candidate, as well as match to the Higgs sector of Next-to Mnimal-supersymmetric Standard model (NMSSM). The BSM extension of the Higgs sector can contribute the self-energy of $W^\pm$ and...