中文

Tevatron上通过碎裂产生J/psi

高能物理 - 唯象学 2009-10-28 v2

摘要

通过包含碎裂机制,考虑了在ppˉp\bar p碰撞中产生大横动量(\pt>M\jpsi\pt > M_\jpsi)的\jpsi\jpsi。同时考虑了直接碎裂为\jpsi\jpsi以及碎裂为χ\chi态随后通过辐射衰变到\jpsi\jpsi的贡献。发现后者占主导地位,并且大于直接产生。总体理论估计与实验观测几乎一致。

关键词

引用

@article{arxiv.hep-ph/9405241,
  title  = {J/psi Production via Fragmentation at the Tevatron},
  author = {M. Cacciari and M. Greco},
  journal= {arXiv preprint arXiv:hep-ph/9405241},
  year   = {2009}
}

备注

LaTeX, 7 pages. Preprint FNT/T-94/13, LNF-94/024(P). Data taken from a reference were incorrect and have been changed. Complete postscript file available via anonymous ftp at cobra1.pv.infn.it, as pub/jpsi.ps(.Z)(.gz)