講座主題：Searching for a long-lived pseudo-scalar at the LHC
專家姓名：朱睿
工作單位：中國(guó)科學(xué)院理論物理研究所
講座時(shí)間：2025年03月25日03:00-06:30
講座地點(diǎn)：化院北312
主辦單位：煙臺(tái)大學(xué)物理與電子信息學(xué)院
內(nèi)容摘要：
In this talk we investigate the Higgs decay into a light long-lived pseudo-scalar plus a Z-boson and take the aligned two-Higgs-doublet model (2HDM) as an example. This light long-lived scalar, with the dominant decay to tau leptons, will fly over a distance from the production point and present a displaced vertex in an Inner Detector of a generally purposed experiment like ATLAS or CMS. In our study we focus on the LHC experiment and perform Monte Carlo simulations for the signal and backgrounds. We demonstrate some benchmark points for the aligned 2HDM and find the signal to be detectable when the luminosity is accumulated to 300 fb-1.
主講人介紹：
朱睿，2017 年本科畢業(yè)于中國(guó)科學(xué)技術(shù)大學(xué)理科試驗(yàn)班。2021年至今于中國(guó)科學(xué)院理論物理研究所攻讀博士學(xué)位，導(dǎo)師為楊金民研究員。主要研究方向包括：對(duì)撞機(jī)物理，超出標(biāo)準(zhǔn)模型的新物理，以及暗物質(zhì)。
