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相关论文: The improved nuclear parton distributions

200 篇论文

We discuss consistency of the nuclear effects between the electromagnetic and weak interactions. In order to study a possibility of different nuclear effects in the neutrino DIS process, double differential cross section data are compared…

高能物理 - 唯象学 · 物理学 2016-12-21 Masanori Hirai

I discuss radiative corrections due to the emission of photons from quarks which contribute to deep inelastic lepton--nucleon scattering as well as to $pp$ collisions at high energies. These corrections are dominated by quark-mass…

高能物理 - 唯象学 · 物理学 2014-11-17 H. Spiesberger

The LHC is foreseen to finally bring also the nuclear collisions to the TeV scale thereby providing new possibilities for physics studies, in particular related to the electro-weak sector of the Standard Model. We study here the Z and W…

高能物理 - 唯象学 · 物理学 2015-03-17 Hannu Paukkunen , Carlos A. Salgado

Utilizing recent DIS measurements (F_{2,L}) and data on dilepton and high-E_{T} jet production we determine the dynamical parton distributions of the nucleon generated radiatively from valence-like positive input distributions at optimally…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Glück , P. Jimenez-Delgado , E. Reya

We present a dynamical study of the double parton distribution in impact parameter space, which enters into the double scattering cross section in hadronic collisions. This distribution is analogous to the generalized parton densities in…

高能物理 - 唯象学 · 物理学 2011-06-28 Christoffer Flensburg , Gösta Gustafson , Leif Lönnblad , Andras Ster

We review the theoretical foundations, methodological approaches and current status of the determination of nuclear parton distribution functions (PDFs). A large variety of measurements in fixed-target and collider experiments provide…

高能物理 - 唯象学 · 物理学 2024-07-16 M. Klasen

The unprecedented precision of experimental measurements at the Large Hadron Collider (LHC) and the increased statistics that will be reached in the High-Luminosity phase of the LHC (HL-LHC) are pushing the phenomenology community to a new…

高能物理 - 唯象学 · 物理学 2024-04-15 Maria Ubiali

We recall our recent description of quark parton densities of the proton at $Q^2=4 GeV^2$ in terms of Fermi-Dirac distributions parametrized with very few free parameters. We have also proposed some simple assumptions to relate unpolarized…

高能物理 - 唯象学 · 物理学 2016-09-01 Claude Bourrely , Jacques Soffer

We report results of a new global next-to-leading order fit of parton distribution functions in which cuts on W and Q are relaxed, thereby including more data at high values of x. Effects of target mass corrections (TMCs), higher twist…

高能物理 - 唯象学 · 物理学 2010-05-28 A. Accardi , M. E. Christy , C. E. Keppel , W. Melnitchouk , P. Monaghan , J. G. Morfin , J. F. Owens

We extract the ratio of the down (d) and up (u) parton distribution functions (PDF's) from the ratio of deuteron and proton structure function F_2(d)/F_2(p) measured by NMC. We use corrections for nuclear binding effects in the deuteron,…

高能物理 - 唯象学 · 物理学 2007-05-23 U. K. Yang , A. Bodek

Using the NMC and E665 nuclear structure function ratios $F_2^A/F_2^D$ and $F_2^A/F_2^{C}$ from deep inelastic lepton-nucleus collisions, and the E772 Drell--Yan dilepton cross sections from proton-nucleus collisions, and incorporating…

高能物理 - 唯象学 · 物理学 2014-11-17 K. J. Eskola , V. J. Kolhinen , P. V. Ruuskanen

The attenuation of heavy-flavored particles in nucleus-nucleus collisions tests the microscopic dynamics of medium-induced parton energy loss and, in particular, its expected dependence on the identity (color charge and mass) of the parent…

高能物理 - 唯象学 · 物理学 2009-11-11 A. Dainese , N. Armesto , M. Cacciari , C. A. Salgado , U. A. Wiedemann

The 2015 nuclear physics long-range plan endorsed the realization of an Electron-Ion Collider (EIC) as the next large construction project after the completion of FRIB. With its high luminosity ( $> 10^{33} cm^{-2}s^{-1}$), wide kinematic…

核实验 · 物理学 2017-09-04 Salvatore Fazio

An improved leading order fragmentation functions set of kaon is proposed based on the experimental data. We compare it with currently available sets, and use it to calculate high-$p_T$ $K/\pi$ ratios in relativistic proton-proton…

高能物理 - 唯象学 · 物理学 2007-05-23 Yi Zhang

An accurate knowledge of nuclear parton distribution functions (nPDFs) is an essential ingredient of high energy physics calculations when the processes are involving nuclei in the initial state. It is well known now that the prompt photon…

高能物理 - 唯象学 · 物理学 2019-05-29 Muhammad Goharipour , S. Rostami

The prospects of measuring a single-differential dijet cross section during the proposed short proton-oxygen data taking at LHC Run 3 are studied using next-to-leading-order perturbative QCD predictions. With reasonable experimental cuts…

高能物理 - 唯象学 · 物理学 2022-03-02 Petja Paakkinen

We present a new global QCD analysis of nuclear parton distribution functions and their uncertainties. In addition to the most commonly analyzed data sets for the deep-inelastic scattering of charged leptons off nuclei and Drell-Yan…

高能物理 - 唯象学 · 物理学 2013-05-30 Daniel de Florian , Rodolfo Sassot , Marco Stratmann , Pia Zurita

We study the parton distribution of nucleon and nuclear EMC effect in a statistical model. We find when we choose the parameters appropriately, the predictions given by pure statistical laws can fit the experimental data well in most range…

高能物理 - 唯象学 · 物理学 2016-09-05 Xian-Qiao Yu

Despite a wealth of experimental data for high-P_T processes in heavy-ion collisions, discriminating between different models of hard parton-medium interactions has been difficult. A key reason is that the pQCD parton spectrum at RHIC is…

高能物理 - 唯象学 · 物理学 2015-05-28 Thorsten Renk , Jussi Auvinen , Kari J. Eskola , Ulrich Heinz , Hannu Holopainen , Risto Paatelainen , Chun Shen

Nuclear parton distribution functions (nuclear PDFs) are non-perturbative objects that encode the partonic behaviour of bound nucleons. To avoid potential higher-twist contributions, the data probing the high-$x$ end of nuclear PDFs are…

高能物理 - 唯象学 · 物理学 2020-06-24 Hannu Paukkunen , Pia Zurita