Search for direct CP violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays

J.P. Lees; V. Poireau; V. Tisserand; N. Arnaud; M. Davier; D. Derkach; G. Grosdidier; F. Le Diberder; A. M. Lutz; B. Malaescu; P. Roudeau; M. H. Schune; A. Stocchi; G. Wormser; D. Bernard; M. Verderi; S. Emery; G. Hamel de Monchenault; G. Vasseur; Ch. Yèche; S. Akar; E. Ben-Haim; M. Bomben; G.R. Bonneaud; H. Briand; G. Calderini; J. Chauvau; O. Hamon; Ph. Leruste; G. Marchiori; J. Ocariz; S. Sitt

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arXiv: 1212.1856

DOI: 10.1103/PhysRevD.87.052010

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Physical Review D 87 (2013) 052010

Search for direct CP violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays

J.P. Lees¹, V. Poireau¹, V. Tisserand¹, N. Arnaud², M. Davier², D. Derkach², G. Grosdidier², F. Le Diberder², A. M. Lutz², B. Malaescu², P. Roudeau², M. H. Schune², A. Stocchi², G. Wormser², D. Bernard³, M. Verderi³, S. Emery⁴, G. Hamel de Monchenault⁴, G. Vasseur⁴, Ch. Yèche⁴, S. Akar⁵, E. Ben-Haim⁵, M. Bomben⁵, G.R. Bonneaud⁵, H. Briand⁵, G. Calderini⁵, J. Chauvau⁵, O. Hamon⁵, Ph. Leruste⁵, G. Marchiori⁵, J. Ocariz⁵, S. Sitt⁵

For the BABAR collaboration(s)

(2013)

We report on a search for direct CP asymmetry in the singly Cabibbo-suppressed decay D+- --> K+ K- pi+- using a data sample of 476 fb-1 accumulated with the BaBar detector running at and just below the Y(4S) resonance. The CP-violating decay rate asymmetry A_CP is determined to be (0.35 +- 0.30 +- 0.15)%. Model-dependent and model-independent Dalitz plot analysis techniques are used to search for CP-violating asymmetries in the various intermediate states.

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

2:	LAL - Laboratoire de l'Accélérateur Linéaire

3:	LLR - Laboratoire Leprince-Ringuet

4:	IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)

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

Subject(s)

Physics/High Energy Physics - Experiment

Fulltext link:

http://fr.arXiv.org/abs/1212.1856


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From: Françoise Marechal <>
Submitted on: Tuesday, 11 December 2012 11:39:29
Updated on: Thursday, 28 March 2013 10:46:35