Research
LHCb实验：通过重味强子的精确测量探索新物理
本课题组参与CERN大型强子对撞机（LHC）上的LHCb实验，主要开展重味强子精确测量、强子谱学及新型强子态研究。 我们利用LHCb优异的重味粒子产生与衰变探测能力，研究CP破坏、半轻衰变等重要物理过程，通过高精度实验测量检验标准模型并寻找超出标准模型的新物理效应。 我们同时开展四夸克态、五夸克态等奇特强子的发现与性质研究，探索复杂强子态的形成机制和内部结构，进一步理解强相互作用及量子色动力学（QCD）。 此外，面向高亮度LHC带来的高计数率、高辐射等实验挑战，我们开展新型粒子探测器及高速读出电子学技术研究，为未来高能物理实验提供关键探测技术支撑。
Tetraquark and Pentaquark States
Our group studies hadron spectroscopy using data from the LHCb experiment, with a particular focus on exotic hadrons, including tetraquark and pentaquark states. We investigate the observation and spectroscopy of new exotic states, as well as their production and decay properties. In parallel, we also study conventional hadrons and focus on the production mechanisms of heavy quarks. These studies provide important tests of Quantum Chromodynamics (QCD) and help improve our understanding of hadron production and the dynamics of the strong interaction.
CP Violation and the CKM Angle $\gamma$
Our group investigates CP violation in heavy-flavour decays at the LHCb experiment, with a particular focus on the precision determination of the CKM angle $\gamma$. Using interference effects in $B$-meson decays, we pursue theoretically clean measurements of $\gamma$ and explore CP-violating phenomena across a broad range of beauty and charm decays. These studies provide stringent tests of the Standard Model and the CKM mechanism, and help search for possible deviations that could indicate New Physics.
Semileptonic Decays
We investigate semileptonic $B$-meson decays at the LHCb experiment, focusing on the measurements of $R(D^{(*)})$ and $R(J/\psi)$, which test lepton flavour universality in $b\to c\ell\nu$ transitions. These observables provide powerful probes of the Standard Model and are sensitive to possible contributions from New Physics. Our research aims to perform precise measurements of these decays and their kinematic properties, contributing to a deeper understanding of flavour physics and the nature of fundamental interactions.
High-Rate MPGD Development for the LHCb MUON Upgrade II
Our group is developing high-rate Micro-Pattern Gaseous Detectors (MPGDs) for the LHCb MUON Upgrade II, aiming to meet the demanding requirements of the high-luminosity LHC environment. We investigate advanced MPGD technologies, including MicroMegas and uRGroove, with a focus on high-rate capability, detector efficiency, spatial resolution, gain stability, and discharge suppression. We are also developing radiation-tolerant and high-speed readout electronics and study the integration of detectors and electronics to achieve reliable operation under high particle flux and radiation levels. Through prototype development and performance studies, we aim to provide robust and cost-effective detector technologies for the next generation of LHCb MUON systems.
超级陶粲装置（STCF）
超级陶粲装置（Super Tau-Charm Facility，STCF）是面向未来高精度粒子物理研究的新一代高亮度正负电子对撞机，主要运行于 $\tau$ 粒子和粲强子产生的能区。STCF 将提供高亮度、低本底的 $e^+e^-$ 对撞数据，为精确研究粲强子、$\tau$ 轻子以及强子谱学等提供重要实验平台。 依托丰富的 $\tau$ 和粲强子数据，STCF 可开展粲物理、$\tau$ 物理、强子谱学以及稀有衰变等多方面研究，通过高精度测量检验标准模型，并探索可能存在的超出标准模型的新物理效应。同时，STCF 也为研究强相互作用和强子结构提供了重要机遇。 本课题组参与STCF实验的前期研究与探测器研发工作，围绕探测器性能、径迹重建算法以及数据刻度等开展研究，优化径迹探测的动量分辨率、空间分辨率和重建效率，为STCF的高精度物理测量提供可靠的径迹探测能力。