Title of article :
Violation of the geometric scaling behavior of the amplitude for running QCD coupling in the saturation region
Author/Authors :
Bastian Diaz Saez، نويسنده , , Eugene Levin، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2011
Pages :
11
From page :
83
To page :
93
Abstract :
In this paper we show that the intuitive guess that the geometric scaling behavior should be violated in the case of the running QCD coupling, turns out to be correct. The scattering amplitude of the dipole with the size r depends on new dimensional scale: image, even at large values image and image. However, in this region we found a new scaling behavior: the amplitude is a function of image. We state that only in the vicinity of the saturation scale image (image), the amplitude shows the geometric scaling behavior. Based on these finding the geometric scaling behavior that has been seen experimentally, stems from either we have not probed the proton at HERA and the LHC deeply inside the saturation region or that there exists the mechanism of freezing of the QCD coupling constant at image.
Keywords :
Color glass condensate , Gluon saturation , Non-linear evolution , Geometric scaling behavior
Journal title :
Nuclear physics A
Serial Year :
2011
Journal title :
Nuclear physics A
Record number :
1203929
Link To Document :
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