Speaker
Antonio Policicchio
(Universita degli Studi della Calabria)
Description
The LHC experiments will perform sensitive tests of physics phenomena beyond
the Standard Model (BSM). Investigation of decays of beauty hadrons
represents an alternative approach in addition to direct BSM searches. The
ATLAS and CMS efforts concentrate on those B decays that can be selected
already at the first and second trigger levels. The most favorable trigger
signature will be for B hadron decays with muons in the final state. Using
this trigger, ATLAS and CMS will be able to accommodate unprecedentedly high
statistics in so called Golden LHC channel Bs->J/ψφ, as well as in the rare
decays sector. These are purely di-muon decays, and families of semi-muonic
exclusive channels. Already with 1 fb-1 the sensitivity in the di-muon
channels will be comparable to today worlds statistics. The strategy is to
carry on the di-muon channel programme up to nominal LHC luminosity. In
particular the Bs→μμ signal with 4.3 sigma significance can be measured
combining low luminosity samples with those of one year of LHC operation at
a luminosity of 10^34cm-2 s-1. This precision allows excluding or confirming
the SM unambiguously.
Author
Antonio Policicchio
(Universita degli Studi della Calabria)
Co-author
ATLAS-Collaboration
