Resonant Di-Higgs Production in the bbWW Channel: Probing the Electroweak Phase Transition at the LHC

Resonant Di-Higgs Production in the bbWW Channel: Probing the Electroweak Phase Transition at the LHC
Luca Pernie, TAMU
Date and time: Tue, Oct 25, 2016 - 2:30pm
Location: LGRT 419B
Category: ACFI Seminar
Abstract:
Abstract: With the discovery of the Higgs boson at the Large Hadron Collider, exploring the thermal history associated with electroweak symmetry-breaking (EWSB) has taken on heightened interest. In particular, the process of EWSB in the early Universe – the electroweak phase transition – would provide conditions amenable to explaining the observed cosmic matter-antimatter asymmetry, if the transition were of first order and sufficiently strong. The prospects for resonant di-Higgs production searches at LHC, in the context of probing the electroweak phase transition will be presented. Limits on the resonant di-Higgs production cross section times branching fraction have been produced, assuming a search at the Compact Muon Solenoid experiment in the bbWW channel. It has been assumed an integrated luminosity of 300 fb−1, expected to be collected by end of Run2 data-taking foreseen for 2022.