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相关论文: Pseudo and quasi gluon PDF in the BFKL approximati…

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For the kinetic energy of 1d model finite systems the leading corrections to local approximations as a functional of the potential are derived using semiclassical methods. The corrections are simple, non-local functionals of the potential.…

其他凝聚态物理 · 物理学 2010-06-25 Attila Cangi , Donghyung Lee , Peter Elliott , Kieron Burke

The coupling of a pseudo-scalar Higgs boson to gluons is mediated through a heavy quark loop. In the limit of large quark mass, it is described by an effective Lagrangian that only admits light degrees of freedom. In this effective theory,…

高能物理 - 唯象学 · 物理学 2016-01-20 Taushif Ahmed , Thomas Gehrmann , Prakash Mathews , Narayan Rana , V. Ravindran

We study the effect on the parton distribution functions (PDFs) from the inclusion of projected measurements in the Drell-Yan (DY) di-lepton production neutral channel of the angular coefficient associated to the $Z$-boson longitudinal…

高能物理 - 唯象学 · 物理学 2021-10-06 Juri Fiaschi

The soft-gluon approximation, which implies that radiated gluon carries away a small fraction of initial parton's energy, is a commonly used assumption in calculating radiative energy loss of high momentum partons traversing QGP created at…

核理论 · 物理学 2019-02-05 Bojana Blagojevic , Magdalena Djordjevic , Marko Djordjevic

The solution to the non-forward BFKL equation in the Leading Logarithmic approximation is expressed in terms of a sum of iterations of its kernel directly in transverse momentum and rapidity space. Several studies of the non-forward…

高能物理 - 唯象学 · 物理学 2009-11-10 Jeppe R. Andersen , Agustin Sabio Vera

We show that the supersymmetric extension of the Standard Model modifies the structure of the low lying BFKL discrete pomeron states (DPS) which give a sizable contribution to the gluon structure function in the HERA x and Q2 region. The…

高能物理 - 唯象学 · 物理学 2011-09-05 H. Kowalski , L. N. Lipatov , D. A. Ross

We propose a new method to calculate parton distribution functions (PDFs) from lattice correlations of boosted quarks and gluons in the Coulomb gauge. Compared to the widely used gauge-invariant Wilson-line operators, these correlations…

高能物理 - 唯象学 · 物理学 2024-04-30 Xiang Gao , Wei-Yang Liu , Yong Zhao

We review the present status of the determination of parton distribution functions (PDFs) in the light of the precision requirements for the LHC in Run 2 and other future hadron colliders. We provide brief reviews of all currently available…

高能物理 - 唯象学 · 物理学 2016-09-21 A. Accardi , S. Alekhin , J. Blümlein , M. V. Garzelli , K. Lipka , W. Melnitchouk , S. Moch , R. Placakyte , J. F. Owens , E. Reya , N. Sato , A. Vogt , O. Zenaiev

The interaction of the partonic fluctuation of the virtual photon in deep inelastic scattering with soft color fields describing the hadron is treated in an eikonal approximation. It is known that, in this approach, the small-x limit of the…

高能物理 - 唯象学 · 物理学 2008-11-26 H. G. Dosch , A. Hebecker , A. Metz , H. J. Pirner

Spin fluctuations (SF) and SF-mediated superconductivity (SC) in quasi-two-dimensional metals around the antiferrromagnetic (AF) quantum critical point (QCP) are investigated by using the self-consistent renormalization theory for SF and…

强关联电子 · 物理学 2009-11-13 Hisashi Kondo , Toru Moriya

Existing data on the (unpolarised) transverse structure function of the proton are analyzed for large values of the Bjorken variable x. The leading-twist and a phenomenological higher-twist contributions are simultaneously determined from a…

高能物理 - 唯象学 · 物理学 2009-10-31 Silvano Simula

We propose a phenomenological study of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) approach applied to the data on the proton structure function F_2 measured at HERA in the small-x_{Bjorken} region. In a first part we use a simplified…

高能物理 - 唯象学 · 物理学 2008-11-26 R. Peschanski , C. Royon , L. Schoeffel

The next-to-leading order (NLO) corrections to the BFKL equation in the BLM optimal scale setting are briefly discussed. A striking feature of the BLM approach is rather weak Q^2-dependence of the Pomeron intercept, which might indicate an…

高能物理 - 唯象学 · 物理学 2007-05-23 Victor T. Kim , Lev N. Lipatov , Grigorii B. Pivovarov

We find one-loop correction to the integral kernel of the BFKL equation for the total cross section of the high energy scattering in QCD and calculate the next-to-leading contribution to anomalous dimensions of twist-2 operators near $j=1$.

高能物理 - 唯象学 · 物理学 2008-11-26 V. S. Fadin , L. N. Lipatov

The relation between the two approaches is discussed both in the linear and nonlinear regimes. It is connected to the gauge invariance and Moebius symmetry in LL perturbative QCD. First corrections beyond the large N approximation are…

高能物理 - 唯象学 · 物理学 2009-11-10 G. P. Vacca

Hard scattering processes involving hadrons at small $x$ are described by a $k_T$-factorization formula driven by a BFKL gluon. We explore the equivalence of this description to a collinear-factorization approach in which the anomalous…

高能物理 - 唯象学 · 物理学 2016-09-01 J. Kwiecinski , A. D. Martin

The contribution presents a brief summary of the Gauge/Gravity approach to the study of hydrodynamic flow of the quark-gluon plasma formed in heavy-ion collisions, in a boost-invariant setting (Bjorken flow). Considering the ideal case of a…

高能物理 - 唯象学 · 物理学 2014-11-20 R. A. Janik , Robi Peschanski

We present for the first time complete next-to-next-to-leading-order coefficient functions to match flavor non-singlet quark correlation functions in position space, which are calculable in lattice QCD, to parton distribution functions…

高能物理 - 唯象学 · 物理学 2021-02-24 Zheng-Yang Li , Yan-Qing Ma , Jian-Wei Qiu

The need for accurate and precise polarised parton distribution functions (PDFs) is becoming increasingly crucial in view of the Electron-Ion Collider experimental program foreseen in the coming years. Two global PDF determinations at…

高能物理 - 唯象学 · 物理学 2024-09-17 Amedeo Chiefa

Quasiparticle tunneling between two counter-propagating edges through point contacts could provide information on the statistics of the quasiparticles. Previous study on a disk found a scaling behavior by varying the tunneling distance. It…

强关联电子 · 物理学 2015-12-22 Qi Li , Na Jiang , Xin Wan , Zi-Xiang Hu