Search for Λ2/p2 corrections to the QCD running coupling

被引:7
作者
Burgio, G
Di Renzo, F
Parrinello, C
Pittori, C
机构
[1] Univ Parma, Dipartimento Fis, I-43100 Parma, Italy
[2] Ist Nazl Fis Nucl, Grp Collegato Parma, I-43100 Parma, Italy
[3] Univ Liverpool, Dept Math Sci, Liverpool L69 3BX, Merseyside, England
[4] Univ Liege, Inst Phys Nucl Theor, B-4000 Liege, Belgium
关键词
D O I
10.1016/S0920-5632(99)85155-X
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
We investigate the occurrence of power terms Lambda(2)/p(2) in the running QCD coupling by analysing non-perturbative measurements of alpha(s)(p) at quite low momenta obtained from the lattice three-gluon vertex. Our study provides some evidence for such a contribution. The phenomenological implications of such a presence are reviewed.
引用
收藏
页码:623 / 625
页数:3
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