EPE Seminar: Anni Xiong

Tuesday 27 Jan 2026, 16:45 → 17:45 US/Pacific

PAB B042

Shih-Chieh Hsu (University of Washington Seattle (US))

Title: Search for Charged Higgs Bosons via Reinterpreted ATLAS Dark Meson Data

Abstract: The discovery of the neutral Higgs Boson of mass 125 GeV by the ATLAS and CMS experiments in 2012 prompted discussions on whether extensions of the Standard Model (SM) scalar sector exist. The two-Higgs-doublet model (2HDM) is one of the simplest extensions to the SM that predicts the existence of charged Higgs. The search for dark meson, which has previously been published through ATLAS collaboration, studied decays of dark mesons to top and bottom quark final states. These top and bottom quarks subsequently decay to all jets (all-hadronic) and (exactly) one-lepton final states. The similarities of decay products between the dark mesons and the charged Higgs makes the dark meson search potentially sensitive to the charged Higgs signal. This talk will present a search for single charged Higgs production through a reinterpretation of the dark meson search in all-hadronic and one-lepton final states. The data used in the analysis is recorded by the ATLAS experiment at the Large Hadron Collider (LHC) during Run 2 with an integrated luminosity of 140 fb^-1. 

Bio:

Anni Xiong is a recent PhD graduate from the University of Oregon, where she worked on research with the ATLAS experiment at CERN. Prior to graduate school, she earned her undergraduate degree in Physics at the University of Washington, working on data analysis for high-energy particle physics experiments as well as nuclear physics experiments at CENPA.

17:00 → 17:40 Search for Charged Higgs Bosons via Reinterpreted ATLAS Dark Meson Data

Speaker: Anni Xiong (University of Oregon (US))