? ? ? ? ?? ? hep-ph / ? ? ? ? ? ? ?
? ? ? ? ?? ? hep-ph / ? ? ? ? ? ? ?
复制标题
DOI：
--
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
M. Kozlov;E. Levin;V. Khachtryan;J. Miller
中科院分区：
文献类型：
--
作者：
M. Kozlov;E. Levin;V. Khachtryan;J. Miller
本文在零横维BFKL波密子演算的框架下讨论了衍射产生的过程。考虑质量不很大的一束粒子的衍射产生，即ln（M ~ 2/m ~ 2）<$1 <$S ln（Nc <$S），我们得到了计算单、双衍射产生的截面以及衍射中心产生的生存概率值的显式公式.这些公式包括由于所谓的Pomeron环的相关性对所有讨论的观测值的影响。与市场上的其他方法进行了比较。这种比较的主要结论：Mueller-PatelSalam-Iancu近似给出了足够好的描述，接近弹性和衍射截面的精确结果，但相当大的过冲值的生存概率。
In this paper we discuss the processes of diffractive production in the framework of the BFKL Pomeron calculus in zero transverse dimension. Considering the diffractive production of a bunch of particles with not very large masses, namely, ln ( M2/m2 ) ≪ 1 ᾱS ln ( N c ᾱ S ) , we found explicit formulae for calculation of the cross sections for the single and double diffractive production as well as for the value of the survival probability for the diffractive central production. These formulae include the influence of the correlations due to so called Pomeron loops on the values of all discussed observables. The comparison with the other approaches on the market is given. The main conclusion of this comparison: the Mueller-PatelSalam-Iancu approximation gives sufficiently good descriptions and close to the exact result for elastic and diffractive cross section but considerable overshoot the value of the survival probability.