Searching for di-Higgs to bbtautau final states

Series: 
PPRC Seminars
Speaker: 
Tom Stevenson
Host: 
Adrian Bevan
Date: 
April 6th, 2018 at 13:30
Room: 
GO Jones Room 410
Abstract: 

In 2012 the ATLAS and CMS collaborations at the LHC discovered a new particle with a mass of approximately 125 GeV. All current measurements suggest that this is consistent with being a Standard Model (SM) Higgs boson. An important probe of the Higgs mechanism for electroweak symmetry breaking and the shape of the Higgs potential is the measurement of the trilinear Higgs self-coupling. The cross-section of this process is extremely small in the SM, however this can be significantly enhanced by modifications to the top-quark Yukawa coupling, the Higgs self-coupling or through the introduction of beyond the SM (BSM) production mechanisms with new intermediate particles.

This talks presents the search for BSM resonant and SM non-resonant Higgs boson pair production to a final state with two bottom-quarks and two tau leptons using data recorded by the ATLAS detector at s =13 TeV during the 2015 and 2016 data taking periods.