The pion wave function in covariant light-front dynamics Application to the calculation of various physical observables

被引:14
作者
Leitner, O. [1 ,2 ]
Mathiot, J. -F. [3 ]
Tsirova, N. A. [3 ]
机构
[1] Univ Paris 06, Lab Phys Nucl & Hautes Energies, Grp Theorie, F-75252 Paris, France
[2] Univ Diderot, CNRS, IN2P3, F-75252 Paris, France
[3] Clermont Univ, Phys Corpusculaire Lab, CNRS, IN2P3, F-63000 Clermont Ferrand, France
关键词
TRANSITION FORM-FACTORS; EXCLUSIVE PROCESSES; TRANSVERSE-MOMENTUM; QUANTUM CHROMODYNAMICS; PSEUDOSCALAR MESONS; PERTURBATIVE QCD; ELECTROPRODUCTION; AMPLITUDES; SYSTEMS; Q2;
D O I
10.1140/epja/i2011-11017-4
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 structure of the pion wave function in the relativistic constituent quark model is investigated in the explicitly covariant formulation of light-front dynamics. We calculate the two relativistic components of the pion wave function in a simple one-gluon exchange model and investigate various physical observables: decay constant, charge radius, electromagnetic and transition form factors. We discuss the influence of the full relativistic structure of the pion wave function for an overall good description of all these observables, including both low and high momentum scales.
引用
收藏
页码:1 / 12
页数:12
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