Measurement of the Time-Dependent CP Asymmetry in B{sup 0}{yields}D{sub CP}{sup (*)}h{sup 0} Decays

Journal Article · Fri Aug 24 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.99.081801· OSTI ID:21028156

Aubert, B; Bona, M; Boutigny, D; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A ^[1]; Garra Tico, J; Grauges, E ^[2]; Lopez, L; Palano, A ^[3]; Eigen, G; Ofte, I; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N ^[5]

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1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

We report a measurement of the time-dependent CP-asymmetry parameters S and C in color-suppressed B{sup 0}{yields}D{sup (*)0}h{sup 0} decays, where h{sup 0} is a {pi}{sup 0}, {eta}, or {omega} meson, and the decays to one of the CP eigenstates K{sup +}K{sup -}, K{sub S}{sup 0}{pi}{sup 0}, or K{sub S}{sup 0}{omega}. The data sample consists of 383x10{sup 6} {upsilon}(4S){yields}BB decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. The results are S=-0.56{+-}0.23{+-}0.05 and C=-0.23{+-}0.16{+-}0.04, where the first error is statistical and the second is systematic.

• OSTI ID: 21028156
• Journal Information: Physical Review Letters, Vol. 99, Issue 8; Other Information: DOI: 10.1103/PhysRevLett.99.081801; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B NEUTRAL MESONS
COLOR MODEL
CP INVARIANCE
EIGENSTATES
ETA MESONS
KAONS MINUS
KAONS NEUTRAL SHORT-LIVED
KAONS PLUS
MESON FACTORIES
OMEGA PARTICLES
PAIR PRODUCTION
PARTICLE DECAY
PIONS NEUTRAL
STANFORD LINEAR ACCELERATOR CENTER
TIME DEPENDENCE