B{sup 0}{yields}{omega}{eta}{sup (')} and {phi}{eta}{sup (')} decays in the perturbative QCD approach

Journal Article · Thu Mar 01 04:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.054033· OSTI ID:21020080

Dongqin, Guo; Xinfen, Chen; Zhenjun, Xiao ^[1]

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1. Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu 210097 (China)

We calculate the branching ratios and CP-violating asymmetries for B{sup 0}{yields}{omega}{eta},{omega}{eta}{sup '},{phi}{eta}, and {phi}{eta}{sup '} decays in the perturbative QCD (pQCD) factorization approach. The pQCD predictions for the CP-averaged branching ratios are Br(B{sup 0}{yields}{omega}{eta})=(2.7{sub -1.0}{sup +1.1})x10{sup -7}, Br(B{sup 0}{yields}{omega}{eta}{sup '})=(0.75{sub -0.33}{sup +0.37})x10{sup -7}, and Br(B{sup 0}{yields}{phi}{eta})=(6.3{sub -1.9}{sup +3.3})x10{sup -9}, Br(B{sup 0}{yields}{phi}{eta}{sup '})=(7.3{sub -2.6}{sup +3.5})x10{sup -9} which are consistent with currently available experimental upper limits. The inclusion of the gluonic contribution can change the branching ratios of B{yields}{omega}({phi}){eta}{sup '} decays by about 10%. The direct CP-violating asymmetries for B{sup 0}{yields}{omega}{eta} and {omega}{eta}{sup '} decays are generally large in size.

• OSTI ID: 21020080
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 75; 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
BRANCHING RATIO
CP INVARIANCE
ETA MESONS
ETA PRIME-958 MESONS
FACTORIZATION
HADRONIC PARTICLE DECAY
OMEGA-782 MESONS
PERTURBATION THEORY
PHI-1020 MESONS
QUANTUM CHROMODYNAMICS