WIDG Seminar: Chase Shimmin, Yale, “Searching for new physics in di-Higgs production with ATLAS”

Event time: 
Friday, January 25, 2019 - 12:00pm to 1:00pm
Wright Lab - Connector (EAL), WLC-245 See map
270 Whitney Avenue
New Haven, CT 06511
Event description: 

Since the discovery of the Higgs boson at the LHC in 2012, the properties of this new particle have been intensively studied. So far, there appear to be no significant discrepancies between the observed boson and the predictions of the Standard Model. However, as the integrated luminosity of LHC data increases, it is possible to probe increasingly rare phenomena to search for BSM physics. One active area of interest is in the pair production of Higgs bosons; because this process is exceedingly rare in the Standard Model, we do not expect to observe it at the LHC unless there are nonstandard enhancements to its cross section. Additionally, it is possible to search for resonant production of the di-Higgs final state caused by the decay of a heavier exotic particle such as a graviton or composite Higgs. This talk will cover recent searches for pair production of Higgs bosons, especially in the bb\gamma\gamma final state, using 80/fb of 13 TeV collision data recorded by ATLAS.