Conveners
Parallel 4: CEPC
- XuAi ZHUANG (高能所)
Parallel 4: Theory 1
- Xiangpeng Wang (CCNU)
Parallel 4: Theory 2
- 志清 张 (Henan University of Technology)
Parallel 4: Theory 3
- Jingya ZHU (河南大学)
Parallel 4: Computing
- 法制 齐 (高能所)
Parallel 4: Performance
- Yang Liu (Sun Yat-sen University)
Description
Tecent Meeting Link:
https://meeting.tencent.com/dm/DteHTtfSLznq
Meeting ID:
878-5725-3100
会议主题：CLHCP2025 parelle 4: CEPC/Theory/Performance
会议时间：2025/10/30 14:00-20:00 (GMT+08:00) 中国标准时间 - 北京
重复周期：2025/10/30-2025/11/02 14:00-20:00, 每天
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腾讯会议：878-5725-3100
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This talk will summarize recent progress of the CEPC accelerator studies, in particular the R&D efforts in the Phase of CEPC Engineering Design Report.
I will give a short summary on the representative topics of neutrino physics at the future high energy lepton collider CEPC.
CEPC, as a future electroweak, Higgs, and top factory, has great but often overlooked potentials for flavor physics studies. The Tera-Z mode of CEPC will generate O(10^12) Z bosons decaying on-shell, giving rise to a considerable collection of tau leptons and heavy flavored hadrons. Higher energy modes of CEPC also contribute to flavor physics in unique ways.
Baryonic two-body $B$ mesons decays have been measured experimentally for some time, which provides an excellent ground for studying the QCD of baryonic $B$ decays. In this work, we investigate the two-body doubly-charmed baryonic $B$ decays in the perturbative QCD (PQCD) approach including higher twist contributions to the light-cone distribution amplitudes (LCDAs). The charmed baryon LCDAs...
We researched the two body non-leptonic B decays to radilly excited D mesons under the covariant light-front quark model.
A comprehensive study of triple Higgs boson production in the $4\tau 2b$ decay final state is performed for the first time at a future 100 TeV hadron collider. The analysis incorporates modified Higgs self-couplings via trilinear Higgs self-coupling $c_3$ and quartic Higgs self-coupling $d_4$, enabling for a model-independent investigation of potential new physics effects. Higgs bosons are...
Based on several features observed in the data collected during Run 1 of the LHC, a
simplified model was proposed in which a heavy scalar, H, decays into a combination of the
SM Higgs boson (h) and a new Higgs-like scalar, S. One implication of this model is the
appearance of excesses in lepton production when the decay S →WW dominates. These
excesses, referred to as the multi-lepton...
The discovery of the 125 GeV Standard Model (SM) Higgs boson confirmed electroweak symmetry breaking, yet unresolved issues, including the hierarchy problem, dark matter, and baryon asymmetry, point to new physics with extended scalar sectors. Experimental anomalies around 95 GeV in channels like $b\bar{b}$, $\tau^+\tau^-$, and $\gamma\gamma$ have further sparked interest in a potential...
Experiments at the CERN Large Hadron Collider (LHC) have accumulated an unprecedented amount of data corresponding to a large variety of quantum states. Although searching for new particles beyond the Standard Model of particle physics remains a high priority for the LHC program, precision measurements of the physical processes predicted in the Standard Model continue to lead us to a deeper...
The dark photon portal, a leading framework for connecting the Standard Model (SM) with dark matter, is extended in this work to include several novel and consequential mechanisms. Beyond the standard kinetic mixing with the hypercharge field, we incorporate mass mixing via an additional Higgs doublet. Furthermore, we introduce a non-Abelian kinetic mixing between the $U(1)_X$ and $SU(2)_L$...
In the phenomenology study of dark photon, its mass origin is usually not under concern. However, in theory construction its mass is often generated via a dark Higgs mechanism, which leads to the presence of a light (non-decoupled) dark Higgs particle.We study the impact of such a dark Higgs particle in the collider detection of the dark photon. We focus on the process of final state dark...
Motivated by the multi-lepton anomalies at the LHC, a sideband analysis of γγ, Zγ, and WW spectra in Run 2 data reveals a narrow resonance
at mS = 152 ±1 GeV with a global significance of 5.3σ, while the ZZ channel remains SM-
like. This pattern is consistent with the Real Higgs Triplet (RHT) model with hypercharge
Y = 0, in which S does not couple to ZZ at tree level. In this framework,...
This report will summarize the new updates or highlights of Chininese LHC computing recently.
IHEP-CC is a crucial partner in the global HEP computing landscape, providing robust and expanding computational and storage resources for current and future scientific discoveries.
We will intrduce the overview of the IHEP Computing Center(IHEPCC) and the grid sites running status and accounting in IHEPCC.
The LHCb Tier2 site has been successfully constructed in Lanzhou University and running smoothly, we will present the recent status of the computing cluster.
Shandong University holds the dedicated cluster for high energy physics, currently with approximately 1,500 CPU cores, 2 PB of storage, and 66 GPU cards, supporting various experiments including BESIII, Belle II, LHC, LHAASO, STCF, and STAR.
In the past year, the heavily utilized system supported over 160 users, executing more than 1 million jobs and consuming over 2 million CPU hours....
The USTC computing cluster has been updated this year, including software upgrades and worknode expansion.
Currently, CNIC is responsible for the operation and maintenance of two EGI cloud sites in Mainland China: CSTCLOUD-EGI and CENI. This report will detail the operational status and issues concerning these two sites.
This report summarizes ALICE computing activities in China. It introduces the participating institutes and the Chinese ALICE community, outlines the establishment and operation of the Tier-2 site at IHEP Beijing, and highlights its integration into the global computing infrastructure. The report also discusses operational experience and future plans for resource expansion and enhanced support...
ATLAS Computing
As LHC run3 keep taking more and more data (up to 244 fb-1 for CMS now), the demanding on the coumputing and storage, as well as the usage of GPU for machinelearning studies are keep increasing. in this presentation, I will give the status report of Chinese CMS computing resources, its usage, and feedbacks from users.
The LHCb experiment is operating in Run 3 at an unprecedented instantaneous luminosity of 2×10³³ cm⁻²s⁻¹. To process the resulting 30 MHz non-empty bunch-crossing rate, LHCb has deployed a novel, fully software-based trigger for the first time. Its second stage performs offline-quality event reconstruction in real-time, enabled by the continuous processing of alignment and calibration data....
With the increasing size of the machine learning (ML) model and vast datasets, the foundation model has transformed how we apply ML to solve real-world problems. Multimodal language models like chatGPT and Llama have expanded their capability to specialized tasks with common pre-train. Similarly, in high-energy physics (HEP), common tasks in the analysis face recurring challenges that demand...
The analysis aims to obtain the results of High gain and Medium gain intercalicration by using data23 and data24 special runs, which were acquired with the threshold to switch from High gain to Medium gain LAr readout in both the first and second layers of the EM calorimeter significantly lowered.
A discrepancy between the reconstructed dielectron invariant mass $𝑚_{𝑒^{+}𝑒^{−}}$ obtained...
This talk presents the offline reconstruction and identification performance of electrons and photons at CMS using proton-proton collision data collected in 2022 and 2023 at a center of mass energy of 13.6 TeV. The corrections and scale factors derived and applied to collision data and simulation are also discussed.
We discuss the results obtained by the CMS Collaboration on the performance of jets and missing transverse energy, with a focus on Run3 data.
This work presents dedicated jet energy calibration techniques developed for low pileup proton–proton collision data. The study focuses on adapting standard calibration procedures to the low pileup regime, where detector response and underlying event conditions differ significantly from nominal high-luminosity operations. We describe the methodology, including residual and relative...
