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ESTIMATING DELTA-GAMMA-D AND THE LONG-DISTANCE CONTRIBUTION TO DELTA-MD
LI, XQ; TAO, ZJ; LI, XQ , CHINESE CTR ADV SCI & TECHNOL,CTR THEORET PHYS,WORLD LAB,POB 8730,BEIJING,PEOPLES R CHINA.
1991
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号43期号:5页码:1641-1645
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.
部门归属NANKAI UNIV,TIANJIN,PEOPLES R CHINA; CHINESE ACAD SCI,INST THEORET PHYS,BEIJING,PEOPLES R CHINA
关键词Ks Mass Difference D-decays Nonleptonic Decays Mesons Rule Model
学科领域Physics
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收录类别SCI
WOS记录号WOS:A1991EZ72600020
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/11321
专题理论物理所1978-2010年知识产出
通讯作者LI, XQ , CHINESE CTR ADV SCI & TECHNOL,CTR THEORET PHYS,WORLD LAB,POB 8730,BEIJING,PEOPLES R CHINA.
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LI, XQ,TAO, ZJ,LI, XQ , CHINESE CTR ADV SCI & TECHNOL,CTR THEORET PHYS,WORLD LAB,POB 8730,BEIJING,PEOPLES R CHINA.. ESTIMATING DELTA-GAMMA-D AND THE LONG-DISTANCE CONTRIBUTION TO DELTA-MD[J]. PHYSICAL REVIEW D,1991,43(5):1641-1645.
APA LI, XQ,TAO, ZJ,&LI, XQ , CHINESE CTR ADV SCI & TECHNOL,CTR THEORET PHYS,WORLD LAB,POB 8730,BEIJING,PEOPLES R CHINA..(1991).ESTIMATING DELTA-GAMMA-D AND THE LONG-DISTANCE CONTRIBUTION TO DELTA-MD.PHYSICAL REVIEW D,43(5),1641-1645.
MLA LI, XQ,et al."ESTIMATING DELTA-GAMMA-D AND THE LONG-DISTANCE CONTRIBUTION TO DELTA-MD".PHYSICAL REVIEW D 43.5(1991):1641-1645.
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