Timelike and spacelike hadron form factors, Fock state components and light-front dynamics

被引:6
|
作者
Pace, E.
Salme, G.
Frederico, T.
Pisano, S.
de Melo, J. P. B. C.
机构
[1] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy
[2] Ist Nazl Fis Nucl, Sez Tor Vergata, I-00133 Rome, Italy
[3] Ist Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy
[4] Ctr Tecn Aeroesp, Inst Tecnol Aeronaut, Dept Fis, BR-12228900 Sao Jose Dos Campos, SP, Brazil
[5] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[6] Univ Cruzeiro Sul, Ctr Ciencias Exatas & Tecnol, BR-08060070 Sao Paulo, Brazil
[7] Univ Estadual Paulista, Inst Fis Teor, BR-01405900 Sao Paulo, Brazil
关键词
D O I
10.1016/j.nuclphysa.2007.03.130
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
A unified description of spacelike and timelike hadron form factors within a light-front model was successfully applied to the pion. The model is extended to the nucleon to study the role of qq pair production and of nonvalence components in the nucleon form factors. Preliminary results in the spacelike range 0 <= Q(2) <= 10 (GeV/c)(2) are presented.
引用
收藏
页码:606C / 609C
页数:4
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