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题名: Strange magnetic moment and isospin symmetry breaking
作者: Ma, BQ
刊名: PHYSICS LETTERS B
出版日期: 1997
卷号: 408, 期号:40912, 页码:387-392
关键词: VIOLATING QUARK DISTRIBUTIONS ;  NN FORM-FACTOR ;  CHIRAL SYMMETRY ;  GOTTFRIED SUM ;  SIGMA-TERM ;  NUCLEON ;  SEA ;  PROTON ;  SCATTERING ;  ASYMMETRY
学科分类: Physics
通讯作者: Ma, BQ , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
部门归属: ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA; ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
英文摘要: The small mass difference m(n) - m(p) = 1.3 MeV between the proton and neutron leads to an excess of n = pi(-)p over p = pi(+)n fluctuations which can be calculated by using a light-cone meson-baryon fluctuation model of intrinsic quark antiquark pairs of the nucleon sea. The Gottfried sum rule violation may partially be explained by isospin symmetry breaking between the proton and neutron and the same effect introduces correction terms to the anomalous magnetic moments and the anomalous weak magnetic moments of the proton and neutron. We also evaluated the strange magnetic moment of the nucleon from the lowest strangeness Kh fluctuation and found a non-trivial influence due to isospin symmetry breaking in the experimental measurements of the strange magnetic moment of the nucleon. (C) 1997 Published by Elsevier Science B.V.
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/311006/12430
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:
Ma, BQ. Strange magnetic moment and isospin symmetry breaking[J]. PHYSICS LETTERS B,1997,408(40912):387-392.
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