π介子形状因子:苏达科夫抑制与内禀横动量
高能物理 - 唯象学
2009-10-22 v1
摘要
我们证明了任何计算π介子形状因子的微扰QCD贡献的尝试,除了苏达科夫形状因子外,还必须包含内禀横动量。对于几个GeV量级的动量转移,内禀横动量会导致微扰QCD贡献的显著抑制。
引用
@article{arxiv.hep-ph/9306259,
title = {The pion form factor: Sudakov suppressions and intrinsic transverse momentum},
author = {R. Jakob and P. Kroll},
journal= {arXiv preprint arXiv:hep-ph/9306259},
year = {2009}
}
备注
LaTeX, 12 pages, 3 figures included with epsf-style option (postscript files added as uuencoded tar-compressed file), CERN-TH.6900, WU-B 93-19