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OFF-SHELL RHO-OMEGA MIXING IN QCD SUM-RULES

被引：79
作者：
HATSUDA, T
HENLEY, EM
MEISSNER, T
KREIN, G
机构：
[1] UNIV WASHINGTON, INST NUCL THEORY, SEATTLE, WA 98195 USA
[2] INST FIS TEOR CA, BR-01405900 SAO PAULO, SP, BRAZIL
来源：
PHYSICAL REVIEW C | 1994年 / 49卷 / 01期
关键词：
D O I：
10.1103/PhysRevC.49.452
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The q(2) dependence of the pw mixing amplitude is analyzed with the use of QCD sum rules and dispersion relations. Going off shell the mixing decreases, changes sign at q(2) similar or equal to 0.4m(p)(2) > 0, and is negative in the spacelike region. Implications of this result for the isospin breaking part of the nuclear force are discussed.
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页码：452 / 463
页数：12
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