EFFECT OF THE A1 WIDTH ON D-]KBARA1 DECAYS

被引：25

作者：

KAMAL, AN

VERMA, RC

机构：

[1] HIMACHAL PRADESH UNIV,DEPT PHYS,SIMLA 171005,HIMACHAL PRADES,INDIA

[2] UNIV ALBERTA,DEPT PHYS,EDMONTON T6G 2J1,ALBERTA,CANADA

来源：

PHYSICAL REVIEW D | 1992年 / 45卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.45.982

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this Brief Report we study D --> KBARa1 decays in a factorization model with neglect of the annihilation term. We find that a mass averaging over the width of a1 using a Breit-Wigner measure does not lead to an enhancement of the rate. We discuss the missing physics that would bridge the gap between theory and experiment.

引用

页码：982 / 985

页数：4

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