One-photon transitions between heavy baryons in a relativistic three-quark model

被引：37

作者：

Ivanov, MA ^{[1
]}

Körner, JG

Lyubovitskij, VE

机构：

[1] Bogoliubov Lab Theoret Phys, Joint Nucl Res Inst, Dubna 141980, Russia

[2] Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[3] Tomsk State Univ, Dept Phys, Tomsk 634050, Russia

来源：

PHYSICS LETTERS B | 1999年 / 448卷 / 1-2期

关键词：

relativistic quark model; Charm and bottom baryons; electromagnetic transitions; excited states; heavy quark limit;

D O I：

10.1016/S0370-2693(99)00029-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study one-photon transitions between heavy baryon states in the framework of a relativistic three-quark model. We calculate the one-photon transition rates for ground-state to ground-state transitions and for some specific excited state to ground-state transitions. Our rate predictions for the most important transitions are: Gamma(Sigma(c)(+) --> Lambda(+)(c)gamma)= 60.7 +/- 1.5 keV, Gamma(Xi'(+)(c) --> Xi(c)(+)gamma) = 12.7 +/- 1.5 keV, Gamma(Lambda(cl)(2593) --> Lambda(c)(+)gamma) = 104.3 +/- 1.3 keV. (C) 1999 Published by Elsevier Science B.V. All rights reserved. PACS: 12.39.Ki; 14.20.Lq; 14.20.Mr.

引用

页码：143 / 151

页数：9

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