CERN Accelerating science

LHCb Note
Report number	LHCb-CONF-2015-002 ; CERN-LHCb-CONF-2015-002
Title	Angular analysis of the $B^{0} \rightarrow K^{*0} \mu^{+} \mu^{-}$ decay
Corporate author(s)	The LHCb Collaboration
Collaboration	LHCb Collaboration
Submitted to	50th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 14 - 21 Mar 2015
Submitted by	cindy.denis@cern.ch on 23 Mar 2015
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; LHCb
Free keywords	flavour physics ; B physics ; rare decay
Abstract	An angular analysis of the $B^{0}\rightarrow K^{*0}\mu^{+}\mu^{-}$ decay is presented using $pp$-collision data collected at the LHCb experiment. The dataset corresponds to an integrated luminosity of 3 fb$^{-1}$. The analysis uses the full angular distribution and measures all $CP$-averaged angular observables and the correlations between these observables, taking into account the contamination from $K^{+}\pi^{-}$ in an S-wave configuration. Neglecting the correlations between the observables, the measurements are largely in agreement with the Standard Model predictions. However, the observable $P'_{5}$ exhibits a local tension with respect to the Standard Model prediction at a level of 3.7$\sigma$.
Copyright/License	Preprint: (License: CC-BY-4.0)
Related	superseded by: CERN-PH-EP-2015-314

Corresponding record in: Inspire
Email contact(s) : thomas.blake@cern.ch ; christoph.langenbruch@cern.ch ; konstantinos.petridis@cern.ch ; nicola.serra@cern.ch