Λb decays into Λ-vector

被引：31

作者：

Ajaltouni, ZJ ^{[1
]}

Conte, E

Leitner, O

机构：

[1] Univ Clermont Ferrand, CNRS, IN2P3, Lab Phys Corpusculaire Clermont Ferrand, F-63177 Clermont Ferrand, France

[2] ETC, I-38050 Trento, Italy

来源：

PHYSICS LETTERS B | 2005年 / 614卷 / 3-4期

关键词：

helicity; baryon decay; polarization;

D O I：

10.1016/j.physletb.2005.04.014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A complete study of the angular distributions of the processes, Lambda(b) -> Lambda V(1(-)), with Lambda -> p pi(-) and V(J/psi) -> l(+)l(-) or V(rho(0)) ->pi(+)pi(-), is performed. Emphasis is put on the initial Lambda(b) polarization produced in the proton-proton collisions. The polarization density-matrices as well as angular distributions are derived and help to construct T-odd observablcs which allow us to perform tests of both time-reversal and CP violation. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：165 / 173

页数：9

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