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Chinese Physics Letter. 2006年第2期23卷 324-327页

作者： g. r. boroun b. rezaie Depar.ment of Physics Razi University Kermanshah 67149 Iran

We ob.ain a solution of the Dg.AP equation to extr.ct the g.uon distr.b.tion function fr.m the deep inelastic str.ctur. function F2 and its der.vative with r.spect to In Q^2 at low x in the next-to-leading.or.er.of per.ur.ation theor.. The values of the g.uon distr.b.tion ar. found in the r.ng. 10^- 4 ≤ x ≤ 10^-2 at Q^2 = 20 g.V^2, We test its validity b. compar.ng.it with that of g.ueck, r.ya and Vog.. The detailed analysis is g.ven for.the HEr. data.

关键词： F2 b.HAVIOr Pr.TON

Calculation of the Long.tudinal Str.ctur. Function fr.m r.g.e-Like b.haviour.of the g.uon Distr.b.tion Function in Leading.Or.er.Appr.ximation at Low x

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Chinese Physics Letter. 2007年第5期24卷 1187-1190页

作者： g.r. boroun b. rezaie Depar.ment of Physics Razi University Kermanshah 67149 Iran

We pr.sent the calculations of FL long.tudinal str.ctur. functions fr.m Dg.AP evolution equation in leading.or.er.（LO） at low-x, assuming.the r.g.e-like b.haviour.of g.uon distr.b.tion at this limit. The calculated r.sults ar. compar.d with the H1 data and QCD fit. It is shown that the ob.ained r.sults ar. ver. close to the mentioned methods. The pr.posed simple analytical r.lation for.EL pr.vides a t-evolution equation for.the deter.ination of the long.tudinal str.ctur. function at low-x. All the r.sults can consistently b. descr.b.d within the fr.mewor. of per.ur.ative QCD, which essentially shows incr.ases as x decr.ases.

关键词： Pr.TON

Analysis of the Long.tudinal Str.ctur. Function F_L fr.m the Non-linear.r.g.e g.uon Density b.havior.at Low-x

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Chinese Physics Letter. 2015年第11期32卷 18-21页

作者： boroun g.r. r.ZAEI b. Physics Depar.ment Razi University

The long.tudinal str.ctur. function with shadowing.cor.ection accor.ing.to the nonlinear.effects of the g.uon density b.havior.at low x is consider.d. The solution of the g.r.MQ evolution equation for.the g.uon density shows that the FL^g.x, Q2） b.havior.can b. tamed b. the sing.lar.ty at low x values. Compar.ng.our.r.sults with H1 data at r.4 g.V-1 shows that at ver. low x this b.havior.is completely tamed b. taking.shadowing.cor.ection into account.

关键词： Analysis of the Long.tudinal Str.ctur. Function F_L fr.m the Non-linear.r.g.e g.uon Density b.havior.at Low-x

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Long.tudinal Str.ctur. Function FL fr.m Char. Str.ctur. Function F2^c

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Communications in Theor.tical Physics 2013年第4期59卷 462-466页

作者： b. r.zaei g.r. boroun Physics Depar.ment Razi University

We pr.dict the effect of the char. str.ctur. function on the long.tudinal str.ctur. function at small x. In NLO analysis we find that the har. Pomer.n b.havior.g.ves a g.od descr.ption of FL and Fk^c （k = 2, L） at small x values. We conclude that a dir.ct r.lation b.tween FL∝ F2^c would pr.vide useful infor.ation on how to measur. long.tudinal str.ctur. function at hig. 0,2 values. Having.checked that this model g.ves a g.od descr.ption of the data, when compar.d with other.models.

关键词： char. str.ctur. function g.uon distr.b.tion quantum chr.modynamics small-x

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Exotic states with QQQ′Q′config.r.tion

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Communications in Theor.tical Physics 2023年第3期75卷 56-61页

作者： Z Asadi g.r.boroun Depar.ment of Physics Razi UniversityKermanshah 67149Iran

In the fr.mewor. of a non-r.lativistic quar. model,we have calculated the masses of the QQQ′Q′(Q=c,b.s and Q′=c,b.s)tetr.quar. *** the linear.and quadr.tic confinement potentials inside a Cor.ell-type potential along.with all possib.e spin and color.config.r.tions,the Schr.ding.r.equation masses of these tetr.quar. states have b.en *** on our.numer.cal analysis,linear.confinement and quadr.tic confinement pr.duce acceptab.e *** that use linear.confinement estimate char.onium-like tetr.quar. mass close to exper.mental data,as well as b.ttomonium-like tetr.quar. mass b.low the thr.shold of their.meson-meson channels.

关键词： tetr.quar. quar. model non-r.lativistic char.onium-like b.ttomonium-like

Nonlinear.cor.ections for.the nuclear.g.uon distr.b.tion in eA pr.cesses

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Chinese Physics C 2024年第3期48卷 52-64页

作者： g.r.boroun b.r.zaei F.Ab.i Depar.ment of Physics Razi UniversityKermanshah 67149Iran.

An analytical study with r.spect to the nonlinear.cor.ections for.the nuclear.g.uon distr.b.tion function in the next-to-leading.or.er.appr.ximation at small x is *** consider.the nonlinear.cor.ections to the nuclear.g.uon distr.b.tion functions at low values of x and Q^(2) using.the par.metr.zation F_(2)(x,Q^(2))and the nuclear.modification factor. ob.ained fr.m the Khanpour.Soleymaninia-Atashb.r.Spiesb.r.0}r.g.zey *** CT18 g.uon distr.b.tion is used for.the b.seline pr.ton g.uon density at Q^(2)_(0)=*** discuss the b.havior.of the g.uon densities in the next-to-leading.or.er.and the next-to-next-to-leading.or.er.appr.ximations at the initial scale Q^(2)_(0),as well as the modifications due to the nonlinear.*** find that the QCD nonlinear.cor.ections ar. mor. sig.ificant for.the next-to-leading.or.er.accur.cy than the next-to-next-to-leading.or.er.for.lig.t and heavy *** r.sults of the nonlinear.g.r.MQ evolution equation ar. similar.to those ob.ained with the r.usch-g.zey-Klasen g.uon upwar. and downwar. evolutions within the *** mag.itude of the g.uon distr.b.tion with the nonlinear.cor.ections incr.ases with a decr.ase in x and an incr.ase in atomic numb.r.A.

关键词： g.uon distr.b.tion nonlinear.cor.ections lig.t and heavy nuclei low x physics

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Exotic states with QQ■ config.r.tion

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Communications in Theor.tical Physics 2023年第3期 60-65页

作者： Z Asadi g.r.boroun Depar.ment of Physics Razi University

In the fr.mewor. of a non-r.lativistic quar. model, we have calculated the masses of the QQ■(Q = c, b. s and ■=■,■,■) tetr.quar. states. Using.the linear.and quadr.tic confinement potentials inside a Cor.ell-type potential along.with all possib.e spin and color.config.r.tions, the Schr.ding.r.equation masses of these tetr.quar. states have b.en *** on our.numer.cal analysis, linear.confinement and quadr.tic confinement pr.duce acceptab.e r.sults. Models that use linear.confinement estimate char.onium-like tetr.quar. mass close to exper.mental data, as well as b.ttomonium-like tetr.quar. mass b.low the thr.shold of their.meson–meson channels.

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