ATLAS中国研究进展汇报

CMS探测器是大型强子对撞机LHC上的一个通用探测器。该报告将介绍CMS中国组在近一年内在探测器升级硬件、物理分析、探测器性能、算法等方面取得的新结果和新进展。

回顾LHCb近一年的主要进展

ALICE中文汇报

Colliders, as powerful instruments at the energy frontier, provide unique opportunities to advance particle physics. They enable both direct searches for new resonances and indirect probes of physics beyond the Standard Model through precision measurements. In this talk, I will use sterile neutrino physics as a case study to illustrate these capabilities. I will present their discovery...

The phenomenon of CP violation is a necessary ingredient for explaining the observed matter-antimatter asymmetry of the universe. The LHCb experiment has a rich program of searching for and measuring CP-violating observables in the heavy quark sector. This presentation reviews recent highlights, including ultra-precise measurements of the CKM angle γ from B→DK decays, studies of CP violation...

A search for resonances in top quark pair ($t\bar{t}$) production in final states with two charged leptons and multiple jets is presented, based on proton-proton collision data collected by the ATLAS and CMS experiment at the CERN LHC at $\sqrt{s}$ = 13 TeV. A significant excess of events is observed near the kinematic $t\bar{t}$ threshold compared to the nonresonant production predicted by...

I would like to introduce the newly released parton level event generator NNLOJET and it's recent progress. The talk would introduce high precision collision processes available on NNLOJET public release and on-going projects regarding jets production at hadron and lepton colliders at NNLO and N3LO QCD accuracy.

In this talk I will discuss the latest measurements of Higgs boson properties from ATLAS and CMS experiments.

Higgs-self coupling measurement at LHC (Plenary)

Rare and exotic decays of the Higgs boson offer a unique window into phenomena beyond the Standard Model, probing potential new interactions, hidden sectors, and extended Higgs sectors.This talk will review the latest searches for rare and non-standard Higgs decays performed by ATLAS and CMS. Particular emphasis will be placed on decays with small branching fractions or unconventional final...

We present a general algorithm—the Young Tensor Method—for systematically constructing complete and independent operator bases in effective field theories. This method is applied to a variety of theories, including the Standard Model Effective Field Theory (SMEFT) and low-energy effective field theories. In the process, we introduce the concept of the J-basis, a generalized partial wave basis...

This talk provides a comprehensive overview of the latest electroweak and Standard Model results from the ATLAS and CMS experiments, highlighting a year of significant progress in precision physics.

The exploration of physics beyond the Standard Model (BSM) remains a central goal of the LHC program. Despite the success of the SM, open questions such as the nature of dark matter, the matter–antimatter asymmetry, and the origin of electroweak symmetry breaking suggest the existence of new phenomena at the TeV scale. This presentation summarizes recent highlights from the ATLAS and CMS...

This report presents the latest studies of rare decays conducted by the LHCb experiment. These processes, highly suppressed in the Standard Model, provide a powerful probe for discovering new physics. T

In this talk, I will give a theoretical review of recent progress in heavy-flavor physics, focusing on power corrections and QED effects.

The study of hadron spectroscopy serves as a crucial experimental probe into the non-perturbative regime of Quantum Chromodynamics (QCD). By precisely measuring the properties, such as masses, widths and quantum numbers of hadrons, we can deepen the understanding of the strong interaction that binds quarks and gluons into matter. The LHCb experiment, with its unique capabilities in...

With the large dataset and excellent detector performance, CMS has made great progress in heavy flavor results. Recent results include in both (exotic) hadron studies, and CP violation and rare decay studies. The spin-parity of all charm tetraquark candidates observed in J/psiJ/psi mass spectrum is found to be prefer 2++. The X(7100) is first observed in J/psiJ/psi channel, and the X(6900) is...

The ATLAS collaboration has developed a new transformer-based flavour tagging algorithm, GN2. It achieves much better performance compared to the previous taggers. In addition, the development-deployment-calibration cycle has been greatly streamlined so that it can be quickly adapted to new use cases. GN2 has already been used in physics analyses, demonstrating its superior performance. Our...

Understanding the structure of protons and nuclei and their energy distributions evolve is a central goal in both heavy-ion collisions and at the future Electron-Ion Collider (EIC). In this talk, I will first discuss how proton and nuclear shape fluctuations can be extracted within the Color Glass Condensate framework using data from electron–nucleon and electron–nucleus collisions. By...

ALICE topical talk, highlighting recent key progress of correlations and flow studies.

ALICE topic talk: heavy flavor physics

The High-Luminosity LHC (HL-LHC) is a crucial upgrade of the Large Hadron Collider (LHC). Its aim is to raise the LHC's collision rate by 5 times. The construction of the HL-LHC accelerator needs several technological breakthroughs. Key among them are new superconducting magnets placed on either side of the ATLAS and CMS detectors, can create a much stronger magnetic field than present ones....

To meet the challenges brought about by ~7 times as high instantaneous luminosity at the HL-LHC, ATLAS will implement upgrade in the current detector. This talk reports the progress in the past year that has been made by the Chinese institute cluster on the ATLAS subdetectors, including HGTD, ITK and Muon system.

Progress of CMS China group on Phase II upgrade

This talk presents the LHCb Upgrade project and the progress achieved in the past year. We will focus on the pivotal contributions from Chinese institutes, which are spearheading the development of core sub-detectors. These include a next-generation Ring-Imaging Cherenkov (RICH) system, a high-granularity Scintillating Fibre tracker, and a novel precision timing detector. Furthermore, Chinese...

This talk will present the current upgrade status of the ALICE experiment detectors and electronics for ALICE 2.1, as well as the future participation of the Chinese collaboration in the ALICE 3 upgrade. Currently, Central China Normal University and China Institute of Atomic Energy are participating in the ALICE 2.1 upgrade, which includes work on the ITS3 (Inner Tracking System 3) and FoCal...

AI and Machine Learning Application in High Energy Physics

We investigate whether collider experiments can reach the quantum limit of precision, defined by the quantum Fisher information (QFI), using only classical observables such as particle momenta. As a case study, we focus on the $\tau^{+} \tau^{-}$system and the decay channel $\tau \rightarrow \pi \nu$, which offers maximal spin-analyzing power and renders the decay a projective measurement. We...