RQM description of PS meson form factors, constraints from space-time translations and underlying dynamics
Desplanques, B; Dong YB(董宇兵); Dong, YB
刊名EUROPEAN PHYSICAL JOURNAL A
2011
卷号47期号:1页码:13
学科分类Physics
DOI10.1140/epja/i2011-11013-8
通讯作者[Desplanques, B.] Univ Grenoble 1, LPSC, CNRS, INPG,IN2P3, F-38026 Grenoble, France ; [Dong, Y. B.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Dong, Y. B.] CAS, Theoret Phys Ctr Sci Facil TPCSF, Beijing 100049, Peoples R China
文章类型Article
英文摘要The role of Poincare covariant space-time translations is investigated in the case of the pseudoscalar-meson charge form factors. It is shown that this role extends beyond the standard energy-momentum conservation, which is accounted for in all relativistic quantum mechanics calculations. It implies constraints that have been largely ignored until now but should be fulfilled to ensure the full Poincare covariance. The violation of these constraints, which is more or less important depending on the form of relativistic quantum mechanics that is employed, points to the validity of using a single-particle current, which is generally assumed in calculations of form factors. In short, these constraints concern the relation of the momentum transferred to the constituents to the one transferred to the system. How to account for the related constraints, as well as restoring the equivalence of different relativistic quantum mechanics approaches in estimating form factors, is discussed. Some conclusions relative to the underlying dynamics are given in the pion case.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000288550800012
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240357
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Desplanques, B,Dong YB,Dong, YB. RQM description of PS meson form factors, constraints from space-time translations and underlying dynamics[J]. EUROPEAN PHYSICAL JOURNAL A,2011,47(1):13.
APA Desplanques, B,董宇兵,&Dong, YB.(2011).RQM description of PS meson form factors, constraints from space-time translations and underlying dynamics.EUROPEAN PHYSICAL JOURNAL A,47(1),13.
MLA Desplanques, B,et al."RQM description of PS meson form factors, constraints from space-time translations and underlying dynamics".EUROPEAN PHYSICAL JOURNAL A 47.1(2011):13.
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