Semileptonic decays of Λc baryons in the relativistic quark model

被引：0

作者：

Faustov, R. N. ^{[1
]}

Galkin, V. O. ^{[1
]}

机构：

[1] FRC CSC RAS, Inst Informat Educ, Vavilov St 40, Moscow 119333, Russia

来源：

EUROPEAN PHYSICAL JOURNAL C | 2016年 / 76卷 / 11期

关键词：

MESONS; MASSES;

D O I：

10.1140/epjc/s10052-016-4492-z

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Motivated by recent experimental progress in studying weak decays of the Lambda(c) baryon we investigate its semileptonic decays in the framework of the relativistic quark model based on the quasipotential approach with the QCD-motivated potential. The form factors of the Lambda(c) -> Lambda l nu(l) and Lambda(c) -> nl nu(l) decays are calculated in the whole accessible kinematical region without extrapolations and additional model assumptions. Relativistic effects are systematically taken into account including transformations of baryon wave functions from the rest to moving reference frame and contributions of the intermediate negative-energy states. Baryon wave functions found in the previous mass spectrum calculations are used for the numerical evaluation. Comprehensive predictions for decay rates, asymmetries and polarization parameters are given. They agree well with available experimental data.

引用

页数：9

共 32 条

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