Measurement of CP observables for the decays B{sup {+-}}{yields}D{sub CP}{sup 0}K*{sup {+-}}

Journal Article · Sat Oct 01 04:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.071103· OSTI ID:20713607

Aubert, B; Barate, R; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, J P; Poireau, V; Tisserand, V; Zghiche, A ^[1]; Grauges, E ^[2]; Palano, A; Pappagallo, M; Pompili, A ^[3]; Chen, J C; Qi, N D; Rong, G; Wang, P; Zhu, Y S ^[4]; Eigen, G; Ofte, I ^[5]

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1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
2. IFAE, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
3. Dipartimento di Fisica and INFN, Universita di Bari, I-70126 Bari (Italy)
4. Institute of High Energy Physics, Beijing 100039 (China)
5. University of Bergen, Institute of Physics, N-5007 Bergen (Norway); and others

Using a sample of 232x10{sup 6} {upsilon}(4S){yields}BB events collected with the BABAR detector at the PEP-II B Factory in 1999-2004, we study B{sup -}{yields}D{sup 0}K*(892){sup -} decays where K*{sup -}{yields}K{sub S}{sup 0}{pi}{sup -} and D{sup 0}{yields}K{sup -}{pi}{sup +}, K{sup -}{pi}{sup +}{pi}{sup 0}, K{sup -}{pi}{sup +}{pi}{sup +}{pi}{sup -} (non-CP final states); K{sup +}K{sup -}, {pi}{sup +}{pi}{sup -} (CP+ eigenstates); K{sub S}{sup 0}{pi}{sup 0}, K{sub S}{sup 0}{phi}, and K{sub S}{sup 0}{omega} (CP- eigenstates). We measure four observables that are sensitive to the angle {gamma} of the CKM unitarity triangle; the partial-rate charge asymmetries A{sub CP{+-}} and the ratios of the B-decay branching fraction in CP{+-} and non-CP decays R{sub CP{+-}}: A{sub CP+}=-0.08{+-}0.19(stat){+-}0.08(syst), A{sub CP-}=-0.26{+-}0.40(stat){+-}0.12(syst), R{sub CP+}=1.96{+-}0.40(stat){+-}0.11(syst), and R{sub CP-}=0.65{+-}0.26(stat){+-}0.08(syst)

• OSTI ID: 20713607
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B MINUS MESONS
B PLUS MESONS
BRANCHING RATIO
CONSERVATION LAWS
CP INVARIANCE
D NEUTRAL MESONS
EIGENFUNCTIONS
EIGENSTATES
EIGENVALUES
HADRONIC PARTICLE DECAY
K*-892 MESONS
KAONS MINUS
KAONS NEUTRAL SHORT-LIVED
KAONS PLUS
KOBAYASHI-MASKAWA MATRIX
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PEP STORAGE RINGS
PIONS MINUS
PIONS NEUTRAL
PIONS PLUS
RESONANCE PARTICLES
UNITARITY
UPSILON-10580 MESONS