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题名: ESTIMATING DELTA-GAMMA-D AND THE LONG-DISTANCE CONTRIBUTION TO DELTA-MD
作者: LI, XQ ;  TAO, ZJ
刊名: PHYSICAL REVIEW D
出版日期: 1991
卷号: 43, 期号:5, 页码:1641-1645
关键词: KS MASS DIFFERENCE ;  D-DECAYS ;  NONLEPTONIC DECAYS ;  MESONS ;  RULE ;  MODEL
学科分类: Physics
通讯作者: LI, XQ , CHINESE CTR ADV SCI & TECHNOL,CTR THEORET PHYS,WORLD LAB,POB 8730,BEIJING,PEOPLES R CHINA.
部门归属: NANKAI UNIV,TIANJIN,PEOPLES R CHINA; CHINESE ACAD SCI,INST THEORET PHYS,BEIJING,PEOPLES R CHINA
英文摘要: Based on the potential model, we estimate the long-distance contributions from one-meson intermediate states to DELTA-m(D) and have found that it is 5-6 times larger than that from two-meson intermediate states. DELTA-GAMMA = GAMMA-D(S) - GAMMA-D(L) is also calculated and not only are the ordinary meson states considered, but the diquark states which convert to ordinary mesons through strong interaction are also taken into account. The numerical result is DELTA-GAMMA/GAMMA congruent-to 3-4%: too small to be observed in the near future.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/11321
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
LI, XQ,TAO, ZJ. ESTIMATING DELTA-GAMMA-D AND THE LONG-DISTANCE CONTRIBUTION TO DELTA-MD[J]. PHYSICAL REVIEW D,1991,43(5):1641-1645.
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