TY - JOUR
T1 - Measurement of Time-Dependent CP Asymmetries in B0 -> D(*)+- D-+ Decays
AU - Aubert, B
AU - Barrett, Matthew
AU - Ford, Kelly
AU - Harrison, Theresa
AU - Hart, Alistair
AU - Hawkes, Christopher
AU - Morgan, Sian
AU - Watson, Alan
PY - 2005/9/1
Y1 - 2005/9/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=27144434398&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.95.131802
DO - 10.1103/PhysRevLett.95.131802
M3 - Article
C2 - 16197131
SN - 1079-7114
VL - 95
SP - 131802
JO - Physical Review Letters
JF - Physical Review Letters
ER -