Thumbnail
Access Restriction
Open

Author Bettler, Marc-Olivier
Source CERN Document Server
Content type Text
File Format PDF
Date Created 2011-06-10
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Modern physics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword LHCb ♦ Particle Physics - Experiment
Abstract A search for the decays $B^0_s \to \mu \mu$ and $B^0 \to \mu \mu$ is performed with about 37 pb$^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 7 TeV collected by the LHCb experiment at the Large Hadron Collider at CERN. The observed numbers of events are consistent with the background expectations. The resulting upper limits on the branching fractions are B$(B^0_s \to \mu \mu$) < 5.6 \times 10$^{-8}$ and B$(B^0 \to \mu \mu)$ < 1.5 \times 10$^{-8}$ at 95% confidence level.
Description Presented at: 46th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 20 - 27 Mar 2011, pp.117-120
Learning Resource Type Article
Rights License Preprint: © 2011-2018 CERN (License: CC-BY-3.0)