Gluon saturation and final states

Abstract

In order to study such effects like parton saturation in final states at the LHC one of the approaches is to combine physics of the BK and the CCFM evolution equations. We report on obtained resummed form of the BK equation and nonlinear extension of the CCFM equation. Xth Quark Confinement and the Hadron Spectrum,

WG2 Highlights - Small x, Diffraction and Vector Mesons

“…It is still an open question to include Sudakov logarithms at small x consistently with saturation effects from first principles. Recently, a new equation [75] has been proposed in order to combine the CCFM equation [76][77][78][79], which has angular ordering, and has the nice feature of including BFKL equation and Sudakov logarithms, and the BK equation, in order to include saturation effects in exclusive final states [80,81]. The trick there is to rewrite the BK equation in a resummed form which is more suitable in view of including exclusive final states effects.…”

Summary of the Structure Functions Working group at DIS 2012

“…Extensions of the CCFM evolution equations have been studied [32] with the aim of addressing effects like parton saturation in final states at the LHC. The question of how to combine the physics of the BK and CCFM evolution equations has been investigated and a possible non-linear extension of the CCFM equation has been obtained, as suggested by an exclusive form of the BK equation.…”