中文
相关论文

相关论文: Nonlinear corrections to the DGLAP equations; look…

200 篇论文

In high energy proton-nucleus collisions, the single- and double-inclusive soft gluon productions at the leading order have been calculated and phenomenologically studied in various approaches for many years. These studies do not take into…

高能物理 - 唯象学 · 物理学 2021-07-14 Ming Li , Vladimir V. Skokov

We study nuclear modification factors for single $D$ meson and semileptonic decay lepton $l$ ($=e,\mu$) production in minimum bias proton-nucleus (p$A$) collisions at the LHC in the color-glass-condensate (CGC) framework at leading order in…

高能物理 - 唯象学 · 物理学 2018-02-06 Hirotsugu Fujii , Kazuhiro Watanabe

DGLAP evolution equations are modified in order to use all the quark families in the full scale range, satisfying kinematical constraints and sumrules, thus having complete continuity for the pdfs and observables. Some consequences of this…

高能物理 - 唯象学 · 物理学 2011-11-15 C. Pascaud

Coupled DGLAP equations involving singlet quark and gluon distributions are explored by a Taylor expansion as two first order partial differential equations in two variables. The system of equations are then solved by the Lagrange's method…

高能物理 - 唯象学 · 物理学 2017-01-11 Dilip Kumar Choudhury , Neelakshi Niti Kachari Borah

Through a determination of the $S$-matrix element for the scattering of a localized colour dipole on a proton, we show that saturation effects can already be sizable at HERA. The saturation scale is found to be around 1-1.5 $GeV^2$ for the…

高能物理 - 唯象学 · 物理学 2017-08-23 S. Munier

Updated predictions are presented for high energy neutrino and antineutrino charged and neutral current cross-sections within the conventional DGLAP formalism of NLO QCD using modern PDF fits. PDF uncertainties from model assumptions and…

高能物理 - 唯象学 · 物理学 2011-08-18 Amanda Cooper-Sarkar , Philipp Mertsch , Subir Sarkar

Perturbative QCD in the high-energy limit describes the evolution of scattering amplitudes with increasing energy towards and into the so-called saturation regime. Comparisons of the predictions with experimental data for a number of…

高能物理 - 唯象学 · 物理学 2009-11-11 Cyrille Marquet

In a previous paper (arXiv:1011.1895), we showed that saturation models, constrained by e+p HERA data on inclusive and diffractive cross-sections, are in good agreement with p+p data at LHC in the soft sector. Particularly impressive was…

高能物理 - 唯象学 · 物理学 2015-06-03 Prithwish Tribedy , Raju Venugopalan

There has been disagreement in the literature on whether the hydrogen atom spectrum receives any tree-level correction due to noncommutativity. Here we shall clarify the issue and show that indeed a general argument on the structure of…

高能物理 - 理论 · 物理学 2009-11-07 M. Chaichian , M. M. Sheikh-Jabbari , A. Tureanu

The signals from international pulsar timing arrays have presented a hint of gravitational stochastic background in nHz band frequency. Further confirmation will be based on whether the signals follow the angular correlation curves…

广义相对论与量子宇宙学 · 物理学 2024-02-06 Qing-Hua Zhu

Standard perturbative calculations lead to pathologically large NLO corrections to low-$x_{Bj}$ evolution equations like BFKL and BK. Using a more refined treatment of kinematics in mixed-space, relevant when gluon saturation sets on, one…

高能物理 - 唯象学 · 物理学 2015-06-12 Guillaume Beuf

In this contribution we briefly review the current status of the dipole models and parton saturation on the basis of results presented at the HERA-LHC workshops in the years 2006-2008. The problem of foundations of the dipole models is…

高能物理 - 唯象学 · 物理学 2008-09-25 L. Motyka , K. Golec-Biernat , G. Watt

In this paper we make predictions for nondiagonal parton distributions in a proton in the LLA. We calculate the DGLAP-type evolution kernels in the LLA, solve the nondiagonal GLAP evolution equations with a modified version of the…

高能物理 - 唯象学 · 物理学 2014-11-17 L. L. Frankfurt , A. Freund , V. Guzey , M. Strikman

Simple analytic formulae for energy relaxation (ER) in electron-ion systems, with quantum corrections, ion dynamics and RPA-type screening are presented. ER in the presence of bound electrons is examined in view of of recent simulations for…

等离子体物理 · 物理学 2008-11-26 M. W. C. Dharma-Wardana

Linear and non-linear QCD evolutions at high energy suffer from severe issues related to convergence, due to higher order corrections enhanced by large double and single transverse logarithms. We resum double logarithms to all orders by…

高能物理 - 唯象学 · 物理学 2015-09-29 E. Iancu , J. D. Madrigal , A. H. Mueller , G. Soyez , D. N. Triantafyllopoulos

We study possible saturation effects in the total cross-section describing interaction of ultrahigh energy neutrinos with nucleons. This analysis is performed within the two approaches, i.e. within the Golec-Biernat W\"usthoff saturation…

高能物理 - 唯象学 · 物理学 2008-11-26 Krzysztof Kutak , Jan Kwiecinski

We demonstrate that the recent forward-forward dijet correlation data measured by the ATLAS collaboration for proton-proton and proton-lead collisions are consistent with the broadening effects due to both the gluon saturation and the…

高能物理 - 唯象学 · 物理学 2019-07-03 Andreas van Hameren , Piotr Kotko , Krzysztof Kutak , Sebastian Sapeta

We present an analysis of the most precise set of HERA data within the color dipole formalism, by using an analytical gluon density, based on the double-logarithm approximation of the DGLAP equations in the asymptotic limit of the scaling…

高能物理 - 唯象学 · 物理学 2023-01-09 D. A. Fagundes , M. V. T. Machado

Different forms of non-linear equations which mimic parton saturation in the non-perturbative regime are examined. These equations lead to corresponding unitarization schemes in the impact parameter representation of the hadron scattering…

高能物理 - 唯象学 · 物理学 2008-11-26 O. V. Selyugin , J. -R. Cudell

We review recent progress on the calculations on the inclusive forward hadron production within the saturation formalism. After introducing the concept of perturbative parton saturation and nonlinear evolution we discuss the formalism for…

高能物理 - 唯象学 · 物理学 2016-09-21 Anna M. Stasto , David Zaslavsky