Expectations on B{yields}(K{sub 0}*(1430),K{sub 2}*(1430)){phi} decays

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

DOI:https://doi.org/10.1103/PHYSREVD.75.054010· OSTI ID:21020057

Chen, C -H ^[1]; Geng, C -Q ^[2]

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1. Department of Physics, National Cheng-Kung University, Tainan 701, Taiwan (China)
2. Department of Physics, National Tsing-Hua University, Hsinchu 300, Taiwan (China)

As the annihilation contributions play important roles in solving the puzzle of the small longitudinal polarizations in B{yields}K*{phi} decays, we examine similar effects in the decays of B{yields}K{sub 0,2}*(1430){phi}. For the calculations on the annihilated contributions, we adopt that the form factors in B{yields}K{sup (*)}{phi} decays are parameters determined by the observed branching ratios (BRs), polarization fractions, and relative angles in experiments, and we connect the parameters between B{yields}K{sub 0(2)}*{phi} and B{yields}K{sup (*)}{phi}. We find that the BR of B{sub d}{yields}K{sub 0}*{sup 0}(1430){phi} is (3.69{+-}0.47)x10{sup -6}. We show that the BR of B{sub d}{yields}K{sub 2}*{sup 0}(1430){phi} is (1.70{+-}0.80)x10{sup -6} in the 2nd version of the Isgur-Scora-Grinstein-Wise (ISGW2) model, whereas it can be a broad range of values in the light-front quark model. In terms of the recent BABAR observations on BRs and polarization fractions in B{sub d}{yields}K{sub 2}*{sup 0}(1430){phi}, the results in the light-front quark model are found to be more favorable. In addition, due to the annihilation contributions to B{yields}K{sub 2}*{phi} and B{yields}K*{phi} being opposite in sign, we demonstrate that the longitudinal polarization of B{sub d}{yields}K{sub 2}*{sup 0}(1430){phi} is always O(1) with or without including the annihilation contributions.

• OSTI ID: 21020057
• 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
ANNIHILATION
B MESONS
BRANCHING RATIO
FORM FACTORS
HADRONIC PARTICLE DECAY
K*-892 MESONS
K*0-1430 MESONS
PHI-1020 MESONS
POLARIZATION
QUARK MODEL