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QCD sum rule calculation for the tensor charge of the nucleon

文献类型:期刊论文

作者He, HX; Ji, XD; He, HX , MIT,CTR THEORET PHYS,NUCL SCI LAB,CAMBRIDGE,MA 02139, USA.
刊名PHYSICAL REVIEW D
出版日期1996
卷号54期号:11页码:6897-6902
关键词Odd Parton Distributions Resonance Physics Magnetic-moments
ISSN号0556-2821
英文摘要The nucleon's tensor charges (isovector g(T)(u)psilon = delta u - delta d and isoscalar g(T)(s) = delta u + delta d) are calculated using the QCD sum rules in the presence of an external tensor field. In addition to the standard quark and gluon condensates, new condensates described by vacuum susceptibilities are induced by the external field. The latter contributions to g(T)(u)psilon and g(T)(s) are estimated to be small. After deriving some simplifying formulas, a detailed sum rule analysis yields g(T)(u)psilon = 1.29 +/- 0.51 and g(T)(s) = 1.37 +/- 0.55, or delta u = 1.33 +/- 0.53 and delta d = 0.04 +/- 0.02 at the scale of 1 GeV2.
学科主题Physics
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公开日期2012-08-29
源URL[http://ir.itp.ac.cn/handle/311006/12553]  
专题理论物理研究所_理论物理所1978-2010年知识产出
通讯作者He, HX , MIT,CTR THEORET PHYS,NUCL SCI LAB,CAMBRIDGE,MA 02139, USA.
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He, HX,Ji, XD,He, HX , MIT,CTR THEORET PHYS,NUCL SCI LAB,CAMBRIDGE,MA 02139, USA.. QCD sum rule calculation for the tensor charge of the nucleon[J]. PHYSICAL REVIEW D,1996,54(11):6897-6902.
APA He, HX,Ji, XD,&He, HX , MIT,CTR THEORET PHYS,NUCL SCI LAB,CAMBRIDGE,MA 02139, USA..(1996).QCD sum rule calculation for the tensor charge of the nucleon.PHYSICAL REVIEW D,54(11),6897-6902.
MLA He, HX,et al."QCD sum rule calculation for the tensor charge of the nucleon".PHYSICAL REVIEW D 54.11(1996):6897-6902.

入库方式: OAI收割

来源:理论物理研究所

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