Radiative decay of Υ (nS) into S-wave sbottornonium

被引：5

作者：

Berger, EL ^{[1
]}

Bodwin, GT ^{[1
]}

Lee, J ^{[1
]}

机构：

[1] Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA

来源：

PHYSICS LETTERS B | 2003年 / 552卷 / 3-4期

关键词：

upsilon decay; bottom squark; gluino; quarkonium;

D O I：

10.1016/S0370-2693(02)03127-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A calculation is presented of the radiative decay of the Y(nS) into a bound state of bottom squarks. Predictions are provided of the branching fraction as a function of the masses of the bottom squark and the gluino. Branching fractions as large as several times 10(-4) are obtained for supersymmetric particle masses in the range suggested by the analysis of bottom-quark production cross sections. Data are shown that limit the range of allowed masses. Forthcoming high-statistics data from the CLEO Collaboration offer possibilities of discovery or significant new bounds on the existence and masses of supersymmetric particles. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：223 / 228

页数：6

共 26 条

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