Speaker
Dr
Sumit Banik
(University of Zurich & PSI)
Description
ATLAS found that none of the various Standard Model simulations used by them can describe the differential lepton distributions measured in their ttbar analysis reasonably well. Therefore, we take the possibility that this measurement might have new physics contamination and study a benchmark model motivated by existing indications for di-photon resonances: A heavy scalar decays into two lighter Higgs bosons with masses of 152 GeV and 95 GeV. Subsequently, the lighter Higgs bosons decay to WW and bb, respectively. We find that in this case, the description of data is very much improved, resulting in a preference for the new physics model over the Standard Model hypothesis of at least 5.6 sigma.
Author
Dr
Sumit Banik
(University of Zurich & PSI)
