Measurement of Time-Dependent CP Asymmetries in B0 -> D(*)+- D-+ Decays

B Aubert, Matthew Barrett, Kelly Ford, Theresa Harrison, Alistair Hart, Christopher Hawkes, Sian Morgan, Alan Watson

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13 Citations (Scopus)

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) gamma(4S)-->BB 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.
Original languageEnglish
Pages (from-to)131802
Number of pages1
JournalPhysical Review Letters
Volume95
DOIs
Publication statusPublished - 1 Sept 2005

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