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题名: Isospin symmetry breaking in rho ->pi gamma decay
作者: Wang, XJ ;  Jiang, JH ;  Yan, ML
刊名: EUROPEAN PHYSICAL JOURNAL A
出版日期: 2002
卷号: 14, 期号:2, 页码:219-224
关键词: PION FORM-FACTOR ;  MESON RADIATIVE DECAYS ;  STORAGE RING VEPP-2M ;  NEUTRAL DETECTOR ;  CHARGE-SYMMETRY ;  WIDTH ;  PHYSICS ;  RHO(0) ;  QUARKS
学科分类: Physics
通讯作者: Wang, XJ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Univ Sci & Technol China, Ctr Fundamental Phys, Anhua 230026, Peoples R China; China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China
英文摘要: In terms of effective field theory and mixed-propagator approach, we show that there is a larger hidden effect of isospin breaking in rho(0) --> pi(0)gamma decay due to a w exchange, rho(0) --> w --> pi(0)gamma. The branching ratio is predicted as B(rho(0) --> pi(0)gamma) = (11.67 +/- 2.0) x 10(-4), which is much larger than Particle Data Grolip's datum (6.8 +/- 1.7) x 10(-4) and one of charged mode, B(rho(+/-) --> pi(+/-)gamma) = (4.5 +/- 0.5) x 10(-4).
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000177242700011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13506
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:
Wang, XJ,Jiang, JH,Yan, ML. Isospin symmetry breaking in rho ->pi gamma decay[J]. EUROPEAN PHYSICAL JOURNAL A,2002,14(2):219-224.
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