Higgs Potential 2022

Session

Higgs & indirect BSM

Jul 25, 2022, 9:15 AM

Conveners

Higgs & indirect BSM

• meng xiao (Zhejiang University)
• 昊 ZHANG (Institute of High Energy Physics, Chinese Academy of Sciences)
• Jiayin Gu (Fudan University)
• Mingshui CHEN (IHEP)

Contribution list Timetable

41. Higgs precision measurements at CMS and ATLAS

Ulascan Sarica (U)

7/25/22, 9:15 AM

Invited plenary talk

19. Measurement of the Higgs boson differential fiducial cross sections in the four-lepton decay channel in pp collisions at $\sqrt{s}$ = 13 TeV

Dr Tahir Javaid (BUAA)

7/25/22, 9:45 AM

The talk would cover the properties of the Higgs boson measured in the $\mathrm{H}\rightarrow{\rm Z}{\rm Z}\rightarrow4\ell$ ($\ell={\rm e},\mu$) decay channel. For this, a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV is used, corresponding to an integrated luminosity of $137~\mathrm{fb}^{-1}$ recorded by the CMS detector at the LHC. In the measurements, the...

12. Measurements of the Higgs boson inclusive and differential fiducial cross-sections in the diphoton decay channel with 𝒑𝒑 collisions at √s = 13 TeV with the ATLAS detector

Mr Gangcheng Lu (IHEP, CAS)

7/25/22, 10:05 AM

A measurement of inclusive and differential fiducial cross-sections for the production of the Higgs boson decaying to two photons is performed using 139 fb−1 of proton–proton collision data recorded at √s = 13 TeV by the ATLAS experiment at the Large Hadron Collider. The inclusive cross-section times branching ratio, in a fiducial region closely matching the experimental selection, is measured...

52. Helicity amplitudes without gauge cancellation for electroweak processes

Dr Junmou （俊谋） Chen （谌） (Jinan University (Guangdong))

7/25/22, 10:25 AM

Multiple EW vector boson amplitudes are known to have bad energy behavior for individual Feynman diagrams, which causes many problems for numerical and theoretical analysis. Based on Goldstone equivalence theorem(GET), we introduce a new representation of Feynman rules that makes GET manifest, while reproduces the exact results of the amplitudes. The new helicity has no subtle gauge...

54. Resolving Degenerate 125 GeV Higgs Bosons

昌龙 许 (school of physics Peking Uniersity)

7/25/22, 10:45 AM

The CP property of the 125 GeV Higgs boson remains a mystery nowadays, which implies the possibility of new physics. We consider a scenario that degenerated 125 GeV CP-even and CP-odd Higgs bosons in a CP conserving Lagrangian will contribute to nontrivial CP measurement. We use 2HDM as an example to show that DiHiggs production in future hadron and electron-positron colliders are potentially...

39. Higgs couplings at future colliders

Zhen Liu (FNAL)

7/25/22, 11:25 AM

Invited plenary talk

38. Highlights in CEPC

Prof. Yaquan FANG Yaquan (高能所)

7/25/22, 11:55 AM

Invited plenary talk

32. Probing Higgs $CP$ properties at the CEPC

Qiyu Sha

7/25/22, 12:25 PM

In the Circular Electron Positron Collider (CEPC), a measurement of the Higgs \textit{CP} mixing through $e^{+} e^{-} \rightarrow Z H \rightarrow l^{+} l^{-}(\mu^{+} \mu^{-} / e^{+} e^{-}) H(\rightarrow b \bar{b} / c \bar{c} / g g)$ process is presented, with $5.6\ \mbox{ab}^{-1}$ $e^{+} e^{-}$ collision data at the center-of-mass energy of $240\ \mathrm{GeV}$. In this study, the...

40. Higgs precision prediction

Prof. Lilin Yang (Zhejiang University) , Lilin Yang (Zhejiang University)

7/25/22, 2:00 PM

Invited plenary talk

24. Dihedral Angle Observable for Measuring CP Property of Top-Higgs Interaction

Dr Rui Zhang (IHEP)

7/25/22, 2:30 PM

We propose a new dihedral angle observable to measure the CP property of the interaction of top quark and Higgs boson in the ttH production at the 14 TeV LHC. We consider two decay modes of the Higgs boson, H → bb and H → γγ, and show that the dihedral angle distribution is able to distinguish the CP-even and the CP-odd hypothesis at 95% confidence level with an integrated luminosity of ∼180 fb^−1.

25. Measuring CP properties of Higgs boson interactions with $\tau$ leptons with the ATLAS detector

Huanguo Li (Nanjing University)

7/25/22, 2:50 PM

This talk will present a measurement of the charge conjugation and parity ($CP$) properties in the Higgs boson interaction with $\tau$ leptons. The Yukawa interaction is generalized with a single mixing angle parameter $\phi_{\tau}$ to describe $CP$-odd interactions between the Higgs boson and $\tau$ leptons. The study is based on a measurement of $CP$-sensitive angular observables defined by...

5. ATLAS Higgs Combination

Changqiao LI (SJTU & TDLI) , 昌樵 李 (Shanghai Jiao Tong University)

7/25/22, 3:10 PM

This talk will present the latest ATLAS Higgs combination result at the Higgs symposium to show the precision map after 10-year Higgs observation.

17. Higgs Combination in CMS

fabio monti (高能所)

7/25/22, 3:30 PM

This talk will present the latest combined measurement of Higgs cross sections and couplings with decay channels of single Higgs, as well as the constrains of Higgs self-coupling using single Higgs events.

42. Higgs rare decay at CMS and ATLAS

Chen Zhou (Peking University)

7/25/22, 4:10 PM

Invited plenary talk

21. Constraining the Higgs-charm coupling at CMS

Congqiao Li (Peking University)

7/25/22, 4:40 PM

The Higgs boson couplings to fermions and vector bosons have been well established since its discovery. Measuring the Higgs interaction with the charm quark is one of the next milestones on LHC, yet it is a challenging task due to the small branching ratio of H→cc̅ and the difficulty in charm tagging. This talk presents the latest search for a Higgs boson decaying to a cc̅ pair using the VH...

26. Higgs boson decay to charmonia via $c$-quark fragmentation

Dr Xiaoze Tan (Harbin Institute of Technology)

7/25/22, 5:00 PM

We calculate the decay branching fractions of the Higgs boson to $J/\psi$ and $\eta_c$ via the charm-quark fragmentation mechanism for the color-singlet and color-octet states in the framework of non-relativistic QCD. The decay rates are governed by the charm-quark Yukawa coupling, unlike the decay $H\to J/\psi + \gamma$, which is dominated by the $\gamma^*$-$J/\psi$ mixing. We find that...

7. Probing light quark Yukawa couplings through angularity distributions in Higgs boson decay

Dr Bin Yan (IHEP)

7/25/22, 5:20 PM

We propose to utilize angularity distributions in Higgs boson decay to probe light quark Yukawa couplings at $e^+e^-$ colliders. Angularities $\tau_a$ are a class of 2-jet event shapes with variable and tunable sensitivity to the distribution of radiation in hadronic jets in the final state. Using soft-collinear effective theory (SCET), we present a prediction of angularity distributions...