Gluon number fluctuations and diffusive scaling effect  

作　　者：Wolfgang FISCHER 

机构地区：[1]Department of Physics, Bielefeld University of Applied Sciences, Bielefeld 33615, Germany

出　　处：《Frontiers of physics》2011年第1期100-105,共6页物理学前沿（英文版）

摘　　要：The diffusive scaling is studied based on pomeron loop equations in the fixed coupling case. At Y 〉〉 YDS, the gluon number fluctuations become important, the geometric scaling is replaced by the diffusive scaling. In the diffusive scaling regime, the deep inelastic scattering （DIS） total scattering cross-section is a function of single variable ln[1/（r^2Qs^2（z））]. We show that the deep inelastic scattering experimental data lie on a single curve, which seems to indicate the existence of the diffusive scaling phenomenology in the deep inelastic scattering.The diffusive scaling is studied based on pomeron loop equations in the fixed coupling case. At Y 〉〉 YDS, the gluon number fluctuations become important, the geometric scaling is replaced by the diffusive scaling. In the diffusive scaling regime, the deep inelastic scattering （DIS） total scattering cross-section is a function of single variable ln[1/（r^2Qs^2（z））]. We show that the deep inelastic scattering experimental data lie on a single curve, which seems to indicate the existence of the diffusive scaling phenomenology in the deep inelastic scattering.

关 键 词：gluon number fluctuations proton structure function pomeron loop 

分 类 号：O4[理学—物理]