Mesonic parton densities derived from constituent quark model constraints

被引：49
|
作者：
Gluck, M [1 ]
Reya, E
Stratmann, M
机构：
[1] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany
[2] Univ Durham, Dept Phys, Durham DH1 3LE, England
来源：
EUROPEAN PHYSICAL JOURNAL C | 1998年 / 2卷 / 01期
关键词：
D O I：
10.1007/s100520050130
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Using constituent quark model constraints we calculate the gluon and sea content of pions solely in terms of their valence density and the known sea and gluon densities of the nucleon. The resulting small-x predictions for g(pi)(x, Q(2)) and q(-pi)(z, Q(2)) are unique and parameter free, being entirely due to QCD dynamics. Similar ideas are applied for calculating the gluon and sea content of kaons which, for our suggested choice of the kaon's valence densities, turn out to be identical to the ones of the pion.
引用
收藏
页码：159 / 163
页数：5
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