8–10 Apr 2013
University of Liverpool
Europe/London timezone

Measurement of ∆ms and ∆md

9 Apr 2013, 13:54
12m
Central Teaching Hub (University of Liverpool)

Central Teaching Hub

University of Liverpool

Parallel Track 1 Track 1

Speaker

Thomas Michael Bird (University of Manchester (GB))

Description

The mass differences ∆ms and ∆md are extracted from the full 2011 LHCb dataset, using the decays B(s)→D(s) μ ν, where D(s)→K K π. Measured B momentum is reduced due to missing particles. This is corrected for using a simulation-based statistical correction, known as the k-factor. A novel resolution model, also taken from the simulation, is used to fit the proper time distributions and simultaneously fit the K K π-mass distributions, which separates the signal and combinatorial background. Standard LHCb flavour-tagging algorithms are combined with the muon charge to measure B mixing.

Author

Thomas Michael Bird (University of Manchester (GB))

Presentation materials