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Hunting for Dark Matter with Boosted Higgs Bosons in ATLAS
posted by Department of Physics for HKU and Public
Event Type: Public Lecture/Forum/Seminar/Workshop/Conference/Symposium
Event Nature: Science & Technology

Event Details


Hunting for Dark Matter with Boosted Higgs Bosons in ATLAS

by Prof. Shih-Chieh Hsu
(Department of Physics, University of Washington Seattle)


Although dark matter (DM) contributes a large component of the mass-energy of the universe, its properties and interactions with known particles remain unknown. In light of this unsolved puzzle, searches for DM pair-produced at Large Hadron Collider (LHC) provide important information complementary to direct and indirect searches in order to determine whether a signal observed experimentally indeed stems from DM. In this presentation, I will report the latest search results of DM pair production in association with a Higgs boson using the LHC Run2 data (sqrt(s)=13 TeV) collected by the ATLAS detector. I'll demonstrate the improvement of the analysis using the state-of-the-art boosted Higgs boson techniques. Because the observed data are found to be consistent with the expected Standard Model backgrounds, I'll show results interpreted using Z'-2HDM simplified models with the most stringent limits. Finally, I will discuss the prospects of this search in the coming LHC Run2 and new ideas of the boosted Higgs tagging.

Coffee and tea will be served 20 minutes prior to the seminar.
Anyone interested is welcome to attend.

Date/Time16/01/2018 16:30-17:30
VenueRm 522, 5/F, Chong Yuet Ming Physics Building, HKU

Registration Instruction

Registration is not required.

Contact Information

Should you have any enquiries, please feel free to contact Ms Eva Wong by email at or by phone at 2859 2360 or by fax at 2559 9152.