DGLAP evolution for DIS diffraction production of high masses

Abstract

In this paper we develop the DGLAP evolution for the system of produced gluons in the process of diffractive production in DIS, directly from the evolution equation in Color Glass Condensate approach. We are able to describe the available experimental data with small value of the QCD coupling (ᾱS ≈ 0.1). We conclude that in diffractive production, we have a dilute system of emitted gluons and in the order to describe them, we need to develop the next-to-leading order approach in perturbative QCD.

Predictions for diffractive ɸ meson production using an AdS/QCD light-front wavefunction

“…However, it has been recently argued in Ref. [26] that the b-dependence should be exponential. In any case, considering the b-dependence introduces an additional parameter which has to be fixed using data on diffractive meson production (for instance J/Ψ production) which requires a model for the meson wavefunction.…”

“…[11] although the effective quark masses m u,d,s = 0.14 GeV also gave acceptable fits to the 2001 DIS structure function data. In the recent paper [26], using a new dipole model, both the current quark masses and the effective quark masses m u,d,s = 0.14 GeV are found to give equally good fits to the 2010 DIS structure function data [23]. In all cases, SU(3) flavour symmetry is assumed.…”

Goat Type Selection and Molecular Markers; a Solution for Milk Production in Recently Desertified Zones

“…In Northern Chile in desert and arid zones the creole goats (Figure 2) were introduced by Spanish conquers during the XVI century and used with multi-purpose uses [68]. Throughout Chilean history, these goats were admixed with others breeds without any record and breeding plan, raising a broad diversity among Chilean creole goats [69].…”

Extended collinearly-improved Balitsky-Kovchegov evolution equation in target rapidity

“…( 7) is known only to leading double logarithmic accuracy, which means that the sub-leading terms are not under control. In addition, the exponent of the S-matrix has a quadratic dependence on rapidity, which renders the S-matrix too small at large rapidities, in the other words, the rapidity evolution speed of the dipole amplitude N is too fast, with N = 1 − S. It has been recognized that the aforemention drawbacks are the reasons why the LO BK equation is insufficient to describe the experimental data at HERA [14,15,39]. Therefore, one has to include the NLO corrections to the LO BK evolution equation, such as the running coupling effect which can suppress the evolution speed of the dipole amplitude by modifying the evolution kernel of the BK equation [16,17].…”