Study of scalar meson f{sub 0}(980) and K{sub 0}{sup *}(1430) from B{yields}f{sub 0}(980){rho}({omega},{phi}) and B{yields}K{sub 0}{sup *}(1430){rho}({omega}) decays

Journal Article · Sun Aug 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.034036· OSTI ID:21432874

Zhang, Zhi-Qing ^[1]

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1. Department of Physics, Henan University of Technology, Zhengzhou, Henan 450052 (China)

In the two-quark model supposition for f{sub 0}(980) and K{sub 0}{sup *}(1430), the branching ratios and the direct CP-violating asymmetries for decays B{sup 0}{yields}f{sub 0}(980){rho}{sup 0}({omega}, {phi}), K{sub 0}{sup *0}(1430){rho}{sup 0}({omega}), K{sub 0}{sup *-}(1430){rho}{sup +} and B{sup -}{yields}f{sub 0}(980){rho}{sup -}, K{sub 0}{sup *0}(1430){rho}{sup -}, K{sub 0}{sup *-}(1430){rho}{sup 0}({omega}) are studied by employing the perturbative QCD factorization approach. we find the following results: (a) if the scalar meson f{sub 0}(980) is viewed as a mixture of ss and (uu+dd)/{radical}(2), the branching ratios of the b{yields}d transition processes B{sup 0}{yields}f{sub 0}(980){rho}{sup 0}({omega},{phi}) and B{sup -}{yields}f{sub 0}(980){rho}{sup -} are smaller than the currently experimental upper limits, and the predictions for the decays B{sup 0}{yields}f{sub 0}(980){omega}, B{sup -}{yields}f{sub 0}(980){rho}{sup -} are not far away from their limits; (b) in the b{yields}s transition processes B{yields}K{sub 0}{sup *}(1430){rho}({omega}), the branching ratio of B{sup 0}{yields}K{sub 0}{sup *0}(1430){rho}{sup 0} is the smallest one, at the order of 10{sup -7} by treating K{sub 0}{sup *}(1430) as the lowest lying state, about 4.8x10{sup -6} by considering K{sub 0}{sup *}(1430) as the first excited state; (c) the direct CP-violating asymmetries of decays B{yields}f{sub 0}(980){rho}({omega}) have a strong dependence on the mixing angle {theta}: they are large in the range of 25 degree sign <{theta}<40 degree sign , and small in the range of 140 degree sign <{theta}<165 degree sign , while the direct CP-violating asymmetry amplitudes of decays B{yields}K{sub 0}{sup *}(1430){rho}({omega}) are not large in the two kinds of state supposition for K{sub 0}{sup *}(1430) and most of them are less than 20%.

• OSTI ID: 21432874
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 82; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
ASYMMETRY
B MESONS
B NEUTRAL MESONS
BARYONS
BEAUTY MESONS
BEAUTY PARTICLES
BOSONS
BRANCHING RATIO
COMPOSITE MODELS
CP INVARIANCE
DECAY
DIMENSIONLESS NUMBERS
DISPERSIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
EXCITED STATES
F0-980 MESONS
FACTORIZATION
FERMIONS
FIELD THEORIES
FORECASTING
HADRONS
HYPERONS
INVARIANCE PRINCIPLES
K*0-1430 MESONS
MATHEMATICAL MODELS
MESONS
MIXTURES
OMEGA BARYONS
PARTICLE DECAY
PARTICLE MODELS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
SCALAR MESONS
STRANGE MESONS
STRANGE PARTICLES
WEINBERG ANGLE