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Measurements of branching fractions and CP-violating asymmetries in B-0 ->rho(+/-)h(-/+) decays

Aubert, B; Barate, R; Boutigny, D; Gaillard, JM; Hicheur, A; Karyotakis, Y; Lees, JP; ... BABAR Collaboration, ; + view all (2003) Measurements of branching fractions and CP-violating asymmetries in B-0 ->rho(+/-)h(-/+) decays. PHYS REV LETT , 91 (20) , Article 201802. 10.1103/PhysRevLett.91.201802. Green open access

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Abstract

We present measurements of branching fractions and CP-violating asymmetries in B-0-->rho(+/-)pi(-/+) and B-0-->rho(-)K(+) decays. The results are obtained from a data sample of 88.9x10(6) Y(4S)-->B (B) over bar decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B Factory. From a time-dependent maximum likelihood fit we measure the branching fractions B(B-0-->rho(+/-)pi(-/+))=[22.6+/-1.8 (stat)+/-2.2 (syst)]x10(-6) and B(B-0-->rho(-)K(+))=(7.3 (-1.2) (+1.3)+/-1.3)x10(-6), and the CP-violating charge asymmetries A(CP)(rhopi)=-0.18+/-0.08+/-0.03 and A(CP)(rhoK)=0.28+/-0.17+/-0.08, the direct CP violation parameter C-rhopi=0.36+/-0.18+/-0.04 and the mixing-induced CP violation parameter S-rhopi=0.19+/-0.24+/-0.03, and the dilution parameters DeltaC(rhopi)=0.28 (-0.19) (+0.18)+/-0.04 and DeltaS(rhopi)=0.15+/-0.25+/-0.03.

Type: Article
Title: Measurements of branching fractions and CP-violating asymmetries in B-0 ->rho(+/-)h(-/+) decays
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.91.201802
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.91.201802
Language: English
Additional information: © 2003 The American Physical Society
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Brain Repair and Rehabilitation
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1303638
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