Speaker
Myfanwy Liles
(University of Liverpool (GB))
Description
The forward backward asymmetry of the decay qq(bar)->Z/γ*->mu+mu- arises from the interference of vector and axial vector couplings of the Z and γ* to fermions. As such, the measurement of AFB is sensitive to the couplings of the boson to quarks and to muons. This measurement is also sensitive to the weak mixing angle sin2θW, an input to the Standard Model. At the LHC the observed asymmetry is diluted by an unknown initial quark direction, however, at LHCb the unique kinematic acceptance results in less of a dilution and a reduction in theoretical error. I present progress towards the measurement of both AFB and sin2θW at LHCb.
Primary author
Myfanwy Liles
(University of Liverpool (GB))
