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Measurement of time-dependent CP asymmetries in B-0 ->(DD -/+)-D-(*)+/- decays

Aubert, B; Barate, R; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, JP; Poireau, V; ... BABAR Collaboration; + view all (2005) Measurement of time-dependent CP asymmetries in B-0 ->(DD -/+)-D-(*)+/- decays. PHYS REV LETT , 95 (13) , Article 131802. 10.1103/PhysRevLett.95.131802. Green open access

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Abstract

We present a first measurement of CP asymmetries in neutral B decays to D+D-, and updated CP asymmetry measurements in decays to D*D-+(-) and D*D--(+). We use fully reconstructed decays collected in a data sample of (232 +/- 3) x 10(6) Y (4S) -> BB B events in the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We determine the time-dependent asymmetry parameters to be SD*+D- = -0.54 +/- 0.35 +/- 0.07, CD*+D- = 0.09 +/- 0.25 +/- 0.06, SD*-D+ = -0.29 +/- 0.33 +/- 0.07, CD*-D+ = 0.17 +/- 0.24 +/- 0.04, SD+D- = -0.29 +/- 0.63 +/- 0.06, and CD+D- = 0.11 +/- 0.35 +/- 0.06, where in each case the first error is statistical and the second error is systematic.

Type: Article
Title: Measurement of time-dependent CP asymmetries in B-0 ->(DD -/+)-D-(*)+/- decays
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.95.131802
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.95.131802
Language: English
Additional information: © 2005 The American Physical Society
Keywords: B-DECAYS, VIOLATION, PHYSICS, GAMMA
UCL classification: UCL
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/1303739
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