题 目：ForwArd Search ExpeRiment  (FASER) at the LHC

报告人：李科博士后（华盛顿大学）

时 间：2021年4月19日上午 10:00

地 点：理工楼1201

联系人：王雄飞

报告摘要：

New physics has traditionally been expected in the high-pT region at high-energy collider experiments. If new particles are light and weakly-coupled, however, this focus may be completely misguided: light particles are typically highly concentrated within a few mrad of the beam line, allowing sensitive searches with small detectors, and even extremely weakly-coupled particles may be produced in large numbers there. In this talk I will discuss the recent proposal of FASER, ForwArd Search ExpeRiment at the LHC: a detector placed 480 m downstream of the ATLAS interaction point (IP) in the very forward region and operated concurrently there. Long-lived, weakly coupled TeV-energy particles can traverse the intervening rock and LHC infrastructure before decaying inside FASER, with little background from Standard Model processes. The collimated nature of the signal allows FASER to be compact, and re-use of components from other experiments allow it to be constructed quickly and inexpensively. FASER will be installed during the current LHC long shutdown and begin collecting data in 2022.

个人简介：

李科，华盛顿大学博士后，2017年毕业于山东大学，获物理学博士学位。2017至2019年中科院高能所和斯坦福国家实验室联合培养博士后。目前为华盛顿大学博士后。长期从事粒子物理实验中物理分析以及先进计算技术的开发与应用，先后参与BESIII, ATLAS, CEPC和FASER等粒子物理实验，主要研究成果包括BESIII上奇特强子态的寻找和研究，CEPC上机器-加速器接口的设计，ATLAS上双希格斯/W玻色子/喷注过程中新粒子的寻找、顶点重建和核心软件开发，以及FASER上离线软件系统的开发和径迹重建等。目前主要研究兴趣在新粒子尤其是长寿命粒子的寻找以及软件加速器的开发与应用。