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Measurement of the branching fraction and CP content for the decay B-0 -> D*+D*-

Aubert, B; Boutigny, D; Gaillard, JM; Hicheur, A; Karyotakis, Y; Lees, JP; Robbe, P; ... BABAR Collaboration, .; + view all (2002) Measurement of the branching fraction and CP content for the decay B-0 -> D*+D*-. PHYS REV LETT , 89 (6) , Article 061801. 10.1103/PhysRevLett.89.061801. Green open access

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Abstract

We report a measurement of the branching fraction of the decay B-0-->D*+D*- and of the CP-odd component of its final state using the BABAR detector. With data corresponding to an integrated luminosity of 20.4 fb (-1) collected at the Y(4S) resonance during 1999-2000, we have reconstructed 38 candidate signal events in the mode B-0-->D*+D*- with an estimated background of 6.2+/-0.5 events. From these events, we determine the branching fraction to be B(B-0-->D*+D*-)=[8.3+/-1.6(stat)+/-1.2(syst)]x10(-4). The measured CP-odd fraction of the final state is 0.22+/-0.18(stat)+/-0.03(syst).

Type: Article
Title: Measurement of the branching fraction and CP content for the decay B-0 -> D*+D*-
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.89.061801
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.89.061801
Language: English
Keywords: MESON SYSTEM, VIOLATION
UCL classification: UCL
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 > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1303611
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