Measurement of time dependent CP asymmetry parameters in B{sup 0} meson decays to {omega}K{sub S}{sup 0}, {eta}{sup '}K{sup 0}, and {pi}{sup 0}K{sub S}{sup 0}

Journal Article · Sun Mar 01 04:00:00 EST 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.052003· OSTI ID:21260055

Aubert, B; Bona, M; Karyotakis, Y; Lees, J P; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V ^[1]; Tico, J Garra; Grauges, E ^[2]; Lopez, L; Palano, A; Pappagallo, M ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N; Cahn, R 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. INFN Sezione di Bari, 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 present measurements of the time-dependent CP-violation parameters S and C in the decays B{sup 0}{yields}{omega}K{sub S}{sup 0}, B{sup 0}{yields}{eta}{sup '}K{sup 0}, reconstructed as {eta}{sup '}K{sub S}{sup 0} and {eta}{sup '}K{sub L}{sup 0}, and B{sup 0}{yields}{pi}{sup 0}K{sub S}{sup 0}. The data sample corresponds to the full BABAR dataset of 467x10{sup 6} BB pairs produced at the PEP-II asymmetric-energy e{sup +}e{sup -} collider at the Stanford Linear Accelerator Center. The results are S{sub {omega}}{sub K{sub S}{sup 0}}=0.55{sub -0.29}{sup +0.26}{+-}0.02, C{sub {omega}}{sub K{sub S}{sup 0}}=-0.52{sub -0.20}{sup +0.22}{+-}0.03, S{sub {eta}{sup '}}{sub K{sup 0}}=0.57{+-}0.08{+-}0.02, C{sub {eta}{sup '}}{sub K{sup 0}}=-0.08{+-}0.06{+-}0.02, S{sub {pi}{sup 0}}{sub K{sub S}{sup 0}}=0.55{+-}0.20{+-}0.03, and C{sub {pi}{sup 0}}{sub K{sub S}{sup 0}}=0.13{+-}0.13{+-}0.03, where the first errors are statistical and the second systematic. These results are consistent with our previous measurements and the world average of sin2{beta} measured in B{sup 0}{yields}J/{psi}K{sub S}{sup 0}.

• OSTI ID: 21260055
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B NEUTRAL MESONS
CP INVARIANCE
ELECTRON-POSITRON COLLISIONS
OMEGA PARTICLES
PAIR PRODUCTION
PARTICLE DECAY
STANFORD LINEAR ACCELERATOR CENTER
TIME DEPENDENCE