Comment on the new Ds(*)+ π0 resonances

被引：127

作者：

Browder, TE ^{[1
]}

Pakvasa, S

Petrov, AA

机构：

[1] Univ Hawaii Manoa, Dept Phys & Astron, Honolulu, HI 96822 USA

[2] Wayne State Univ, Dept Phys & Astron, Detroit, MI 48201 USA

[3] Univ Michigan, Michigan Ctr Theoret Phys, Ann Arbor, MI USA

来源：

PHYSICS LETTERS B | 2004年 / 578卷 / 3-4期

关键词：

D O I：

10.1016/j.physletb.2003.10.067

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose an explanation of the new resonances observed in Ds((*)+)pi(0) decays. We suggest that the data can be explained by the mixing of conventional p-wave excited D-s(+) mesons with 4-quark states. The narrow states observed in D(s)(+)pi(0) and D-s*+pi(0) are primarily p-wave D-sJ(*) states, while the predominantly 4-quark states are shifted above (DK)-K-(*) threshold and should be broad. Ranges for the mixing parameter and mass of the 4-quark state in this scenario are given. Other experimental consequences are discussed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：365 / 368

页数：4

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