Conveners
Poster
- Xiaoming Zhang (Central China Normal University)
- Zhen Hu (Tsinghua University)
- 洁晟 俞 (湖南大学)
- Kun LIU (Tsung-Dao Lee Institute, Shanghai Jiao Tong University)
A search for nonresonant Higgs boson pair production in the $b\bar{b}\gamma\gamma$ channel is performed using $61.9 \mathrm{fb^{-1}}$ of CMS data at $\sqrt{s} = 13.6\,\mathrm{TeV}$. Two analysis strategies are employed. The 2D fit approach yields a 95% CL upper limit of 11.0 (7.3 expected) times the SM prediction, while the 1D approach gives 7.4 (8.7 expected). Constraints on the self-coupling...
Ongoing signal-integrity tests of the flex cable in the UP detector.
The High-Granularity Timing Detector (HGTD) is a key subdetector in the Phase-II upgrade of the High-Luminosity LHC (HL-LHC), playing a crucial role in mitigating pileup. As a critical step in HGTD module production, ASIC probing of ALTIROC-A directly affects subsequent detector module fabrication and assembly. This talk presents the recent progress and results of the HGTD ASIC probing...
The production cross section of $\Upsilon(\text{nS})$(n=1,2,3) bottomonium states are measured in proton-proton collisions at $\sqrt{s}=13.6$ TeV using a data sample corresponding to an integrated luminosity of $37.4$ $\text{fb}^{-1}$ collected in 2022 by the CMS experiment. The measurement is performed within dimuon transverse momentum range $20$ $\text{GeV/c}< p_T <200$ $\text{GeV/c}$ and...
The traditional quark model accounts for the existence of baryons, such as protons and neutrons, which consist of three quarks, as well as mesons, composed of a quark-antiquark pair. Only recently has substantial evidence started to accumulate for exotic states composed of four or five quarks and antiquarks. The exact nature of their internal structure remains uncertain. This paper reports the...
A measurement of the cross section of W boson pair production in photon fusion (γγ → WW) is presented, using an integrated luminosity of 138 fb^−1 of protonproton collision data collected in 2016-2018 at a center-of-mass energy of √s = 13 TeV. Events are selected in the final state with one electron, one muon, and a low multiplicity of tracks associated with the electron-muon production...
