HERA上衍射J/ψ光产生的新视角，以及对THERA的预测
高能物理 - 唯象学
2010-02-03 v2
摘要
我们量化了在独占J/ψ光产生截面中，以及在微分截面随动量转移t的收缩中的微扰和非微扰QCD效应。我们预测，在高能THERA区域，该过程总会有显著的贡献，并且随能量快速上升。这意味着由于光子中空间小涨落的扩展以及高扭度效应，截面随能量上升的抑制是相当渐进的。
引用
@article{arxiv.hep-ph/0009086,
title = {A fresh look at diffractive $J/\psi$ photoproduction at HERA, with predictions for THERA},
author = {L. Frankfurt and M. McDermott and M. Strikman},
journal= {arXiv preprint arXiv:hep-ph/0009086},
year = {2010}
}
备注
Published version, 29 pages, 16 figures, uses JHEP.cls. Substantially rewritten to better emphasize the generality of the results in response to the referee's comments. Predictions for MRST LO partons added, calculations and discussion of the real part of the amplitude and of alpha prime improved. Five of the original figures modified. Two new plots, of the dipole cross section for two different values of parameter lambda, and of energy dependence of alpha prime, added. Three additional references included