[Triumf-seminars] TRIUMF Colloquium today at 10:45

[TRIUMF Seminars]

Date/Time: Thu 2019-04-04 at 10:45

Location:  Auditorium          

Speaker:   Maximilian Swiatlowski (U Chicago)

Title:     Searching With di-Higgs Final States at ATLAS: A Window to the Standard Model and Beyond

Abstract: The discovery of the Higgs boson has been a triumph for the Large Hadron Collider's physics program, but many open questions remain about this mysterious particle. Why is the Higgs mass so many orders of magnitude lower than the straightforward prediction? Can we observe the shape of the Higgs potential which gives rise to the particle, and can this potential be related to cosmological inflation or baryogenesis? Final states with two Higgs bosons, though extremely rare, can provide answers to these questions and more. I will present new ATLAS results for searches for direct di-Higgs production, as well as searches for electroweak supersymmetry involving decays to pairs of Higgs bosons. These searches employ several key innovations, such as the use of b-jet triggers and Boosted Decision Trees in background estimation, to achieve some of the strongest sensitivities yet to di-Higgs production and provide new insights into the mysteries of the Higgs. I conclude by considering the future of these searches at the the upgraded High Luminosity LHC, where advances in particle tracking and hardware track reconstruction will be key for observing Higgs pair production from Standard Model processes or beyond.



Note special time!

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