DPF2015

4-8 August 2015
America/Detroit timezone

Search for a light dark sector particle at LHCb

6 Aug 2015, 14:30
15m
Vandenberg (Michigan League)

BSM Collider

Speaker

Mr Andrea Mauri (University of Zurich)

Description

There is strong evidence that the Standard Model of particle physics is incomplete. The lack of evidence for any new particles had renewed interest in theories postulating the existence of a Dark Sector. The precise manifestation of these particles is entirely unknown, but at low masses a dominant decay channel would be into a dimuon pair. To that end, a search for a dark sector particle, $\chi$, is performed by studying the decay $B^0 \rightarrow K^*(892)^0\mu^+\mu^-$ and $B^+ \rightarrow K^+\mu^+\mu^-$ for candidates consistent with $\chi \rightarrow \mu^+\mu^-$. Limits on the branching fraction of both decay modes are set, as functions of both the mass and \chi lifetime, in a fully frequentist manner.
Oral or Poster Presentation Oral

Primary author

Mr Andrea Mauri (University of Zurich)