Ds+J(2317) → Ds+π0 decay width

被引:37
|
作者
Nielsen, M [1 ]
机构
[1] Univ Sao Paulo, Inst Fis, BR-05389970 Sao Paulo, Brazil
基金
巴西圣保罗研究基金会;
关键词
D O I
10.1016/j.physletb.2006.01.042
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We use the QCD sum rules to analize the hadronic decay D-sJ(+)(2317) -> D(s)(+)pi(0), in the hypothesis that the D-sJ(+)(2317) can be identified as a four-quark state. We use a diquark-antidiquark current and work to the order of ins in full QCD, without relying on I Inic expansion. We find that the partial decay width of the hadronic isospin violating mode is proportional to the isovector quark condensate, < 0 vertical bar(d) over bard - (u) over baru vertical bar 0 >. The estimated partial decay width is of the order of 6 keV. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:35 / 38
页数:4
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