Rare radiative B decay to the orbitally excited K2* (1430) meson

被引：10
作者：
Ebert, D [1 ]
Faustov, RN
Galkin, VO
Toki, H
机构：
[1] Osaka Univ, Res Ctr Nucl Phys, Ibaraki, Osaka 567, Japan
[2] Humboldt Univ, Inst Phys, D-10115 Berlin, Germany
[3] Russian Acad Sci, Sci Council Cybernet, Moscow 117333, Russia
来源：
PHYSICS LETTERS B | 2000年 / 495卷 / 3-4期
关键词：
D O I：
10.1016/S0370-2693(00)01250-8
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The exclusive rare radiative B meson decay to the orbitally excited tensor K-2*(1430) meson is investigated in the framework of the relativistic quark model based on the quasipotential approach in quantum field theory. The calculated branching ratio BR(B --> K-2*(1430)gamma) = (1.7 +/- 0.6) x 10(-5) as well as the ratio BR(B --> K-2*(1430)gamma)/BR(B --> K*(892)gamma) = 0.38 +/- 0.08 is found in a good agreement with recent experimental data from CLEO. (C) 2000 Published by Elsevier Science B.V.
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页码：309 / 316
页数：8
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