Measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays

R. Aaij; S. Barsuk; O. Callot; J. He; B. Jean-Marie; J. Lefrançois; F. Machefert; A. Martin Sanchez; M. Nicol; P. Robbe; M.-H. Schune; B. Viaud; I. Videau; E. Ben-Haim; M. Benayoun; P. David; L. Del Buono; A. Martens; C. Adrover; E. Aslanides; J. Cogan; R. Legac; O. Leroy; G. Mancinelli; E. Maurice; M. Perrin-Terrin; M. Sapunov; J. Serrano; A. Tsaregorodtsev; Z.J. Ajaltouni; O. Deschamps; E. Cogneras; I. El Rifai; P. Henrard; M. Hoballah; M. Jahjah Hussein; R. Lefèvre; L. Li Gioi; S. Monteil; V. Niess; P. Perret; D.A. Roa Romero; K. Sobczak; I. De Bonis; D. Decamp; Ph. Ghez; P. Hopchev; J.-P. Lees; I.V. Machikhiliyan; M.-N. Minard; B. Pietrzyk; S. T'Jampens; V. Tisserand; E. Tournefier

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arXiv: 1210.4492

DOI: 10.1103/PhysRevLett.110.031801

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Physical Review Letters 110 (2013) 031801

Measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays

R. Aaij, S. Barsuk¹, O. Callot¹, J. He¹, B. Jean-Marie¹, J. Lefrançois¹, F. Machefert¹, A. Martin Sanchez¹, M. Nicol¹, P. Robbe¹, M.-H. Schune¹, B. Viaud¹, I. Videau¹, E. Ben-Haim², M. Benayoun², P. David², L. Del Buono², A. Martens², C. Adrover³, E. Aslanides³, J. Cogan³, R. Legac³, O. Leroy³, G. Mancinelli³, E. Maurice³, M. Perrin-Terrin³, M. Sapunov³, J. Serrano³, A. Tsaregorodtsev³, Z.J. Ajaltouni⁴, O. Deschamps⁴, E. Cogneras⁴, I. El Rifai⁴, P. Henrard⁴, M. Hoballah⁴, M. Jahjah Hussein⁴, R. Lefèvre⁴, L. Li Gioi⁴, S. Monteil⁴, V. Niess⁴, P. Perret⁴, D.A. Roa Romero⁴, K. Sobczak⁴, I. De Bonis⁵, D. Decamp⁵, Ph. Ghez⁵, P. Hopchev⁵, J.-P. Lees⁵, I.V. Machikhiliyan⁵, M.-N. Minard⁵, B. Pietrzyk⁵, S. T'Jampens⁵, V. Tisserand⁵, E. Tournefier⁵

For the LHCb collaboration(s)

(2013)

A measurement of the CP asymmetry in B0 -> K*0 mu+ mu- decays is presented, based on 1.0fb-1 of pp collision data recorded by the LHCb experiment during 2011. The measurement is performed in six bins of invariant mass squared of the mu+ mu- pair, excluding the J/psi and psi(2S) resonance regions. Production and detection asymmetries are removed using the B0 -> J/Psi K*0 decay as a control mode. The integrated CP asymmetry is found to be -0.072 +- 0.040 (stat.) +- 0.005 (syst.), consistent with the Standard Model.

1:	LAL - Laboratoire de l'Accélérateur Linéaire

2:	LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies

3:	CPPM - Centre de Physique des Particules de Marseille

4:	LPC-CLERMONT - Laboratoire de Physique Corpusculaire de Clermont-Ferrand

5:	LAPP - Laboratoire d'Annecy le Vieux de Physique des Particules

Subject(s)

Physics/High Energy Physics - Experiment

Fulltext link:

http://fr.arXiv.org/abs/1210.4492


in2p3-00742909, version 1
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From: Françoise Marechal <>
Submitted on: Wednesday, 17 October 2012 15:55:21
Updated on: Tuesday, 22 January 2013 15:52:56