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

Abstract

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.

Authors:
; ;  [1]
  1. Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu 210097 (China)
Publication Date:
OSTI Identifier:
21020080
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevD.75.054033; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Guo Dongqin, Chen Xinfen, and Xiao Zhenjun. B{sup 0}{yields}{omega}{eta}{sup (')} and {phi}{eta}{sup (')} decays in the perturbative QCD approach. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.054033.
Guo Dongqin, Chen Xinfen, & Xiao Zhenjun. B{sup 0}{yields}{omega}{eta}{sup (')} and {phi}{eta}{sup (')} decays in the perturbative QCD approach. United States. doi:10.1103/PHYSREVD.75.054033.
Guo Dongqin, Chen Xinfen, and Xiao Zhenjun. Thu . "B{sup 0}{yields}{omega}{eta}{sup (')} and {phi}{eta}{sup (')} decays in the perturbative QCD approach". United States. doi:10.1103/PHYSREVD.75.054033.
@article{osti_21020080,
title = {B{sup 0}{yields}{omega}{eta}{sup (')} and {phi}{eta}{sup (')} decays in the perturbative QCD approach},
author = {Guo Dongqin and Chen Xinfen and Xiao Zhenjun},
abstractNote = {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.},
doi = {10.1103/PHYSREVD.75.054033},
journal = {Physical Review. D, Particles Fields},
number = 5,
volume = 75,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2007},
month = {Thu Mar 01 00:00:00 EST 2007}
}
  • We calculate the CP-averaged branching ratios and CP-violating asymmetries for B{sup 0}{yields}{eta}{eta}, {eta}{eta}{sup '} and {eta}{sup '}{eta}{sup '} decays by employing the perturbative QCD (pQCD) factorization approach. The pQCD predictions for the CP-averaged branching ratios are Br(B{sup 0}{yields}{eta}{eta}){approx_equal}0.67x10{sup -7}, Br(B{sup 0}{yields}{eta}{eta}{sup '}){approx_equal}0.18x10{sup -7}, and Br(B{sup 0}{yields}{eta}{sup '}{eta}{sup '}){approx_equal}0.11x10{sup -7}, which are consistent with currently available experimental upper limits. We also predict large CP-violating asymmetries for the considered three decay modes, which can be tested by the future B meson experiments.
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