Why is the B→η′X decay width so large?

被引：63

作者：

Halperin, I ^{[1
]}

Zhitnitsky, A ^{[1
]}

机构：

[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.80.438

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new mechanism for the observed inclusive B --> eta'X decay is suggested. We argue that the dominant contribution to this amplitude is due to the Cabibbo favored b --> (c) over bar cs process followed by the transition (c) over bar c --> eta'. A large magnitude of the "intrinsic charm" component of eta' is of critical importance in our approach. Our results are consistent with an unexpectedly large B(B --> eta' + X) similar to 10(-3) recently announced by CLEO. We stress the uniqueness of this channel for 0(-+) gluonia search.

引用

页码：438 / 441

页数：4

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