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相关论文: Triumvirate of Running Couplings in Small-x Evolut…

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We calculate running coupling corrections for the lowest-order gluon production cross section in high energy hadronic and nuclear scattering using the BLM scale-setting prescription. At leading order there are three powers of fixed…

高能物理 - 唯象学 · 物理学 2015-05-28 W. A. Horowitz , Yuri V. Kovchegov

We propose a new method to implement the running coupling constant in the JIMWLK equation, imposing the scale dependence on the correlation function of the random noise in the Langevin formulation. We interpret this scale choice as the…

高能物理 - 唯象学 · 物理学 2013-03-29 T. Lappi , H. Mäntysaari

We study the solution of the nonlinear BK evolution equation with the recently calculated running coupling corrections [hep-ph/0609105, hep-ph/0609090]. Performing a numerical solution we confirm the earlier result of [hep-ph/0408216] that…

高能物理 - 唯象学 · 物理学 2008-11-26 Javier L. Albacete , Yuri V. Kovchegov

We calculate running coupling corrections for the lowest-order gluon production cross section in high energy hadronic and nuclear scattering using the BLM scale-setting prescription. In the final answer for the cross section the three…

高能物理 - 唯象学 · 物理学 2011-01-17 W. A. Horowitz , Yuri V. Kovchegov

A main feature of high-energy scattering in QCD is saturation in the number density of gluons. This phenomenon is described by non-linear evolution equations, JIMWLK and BK, which have been derived at leading logarithmic accuracy. In this…

高能物理 - 唯象学 · 物理学 2008-11-26 Einan Gardi , Janne Kuokkanen , Kari Rummukainen , Heribert Weigert

We determine running coupling corrections to the kernel of the non-linear evolution equation for the cross section of single diffractive dissociation in high energy DIS. The running coupling kernel for diffractive evolution is found to be…

高能物理 - 唯象学 · 物理学 2015-06-03 Yuri V. Kovchegov

We explore the subleading-N_c corrections to the large-N_c Balitsky-Kovchegov (BK) evolution equation by comparing its solution to that of the all-N_c Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner (JIMWLK) equation. In earlier…

高能物理 - 唯象学 · 物理学 2009-11-19 Yuri V. Kovchegov , Janne Kuokkanen , Kari Rummukainen , Heribert Weigert

We discuss the inclusion of running coupling effects in perturbative small x evolution equations. We show that a running coupling BFKL-like x-evolution equation is fully compatible, up to higher twist corrections, with the standard…

高能物理 - 唯象学 · 物理学 2008-11-26 Guido Altarelli , Richard D. Ball , Stefano Forte

Starting from the dipole representation of small-$x$ evolution we implement the running of the coupling in a self-consistent way. This results in an evolution equation for the dipole density in Borel $(b)$ space. We show that the Borel…

高能物理 - 唯象学 · 物理学 2009-10-30 K. D. Anderson , D. A. Ross , M. G. Sotiropoulos

Various conventional running coupling prescriptions reproducing $\beta_ 0$-dependent terms of NLO JIMWLK are reviewed and found to be theoretically inconsistent: the JIMWLK evolution Hamiltonian with running coupling violates the…

高能物理 - 唯象学 · 物理学 2024-03-19 Tolga Altinoluk , Guillaume Beuf , Michael Lublinsky , Vladimir V. Skokov

We study the sea quark contribution to the BFKL kernel in the framework of Mueller's dipole model using the results of our earlier calculation. We first obtain the BFKL equation with the running coupling constant. We observe that the…

高能物理 - 唯象学 · 物理学 2008-11-26 Yuri V. Kovchegov , Heribert Weigert

We calculate some ${\cal O}(\alpha_s^2)$ corrections to the JIMWLK kernel in the framework of the light-cone wave function approach to the high energy limit of QCD. The contributions that we consider originate from higher order corrections…

高能物理 - 唯象学 · 物理学 2008-11-26 J. L. Albacete , N. Armesto , J. G. Milhano

In this work we calculate some O(\alpha_s^2) corrections to the JIMWLK kernel in the framework of the light-cone wave function approach to the high energy limit of QCD. The contributions that we consider originate from higher order…

高能物理 - 唯象学 · 物理学 2009-11-11 J. L. Albacete , N. Armesto , J. G. Milhano

In this paper we present the results of numerical studies of the JIMWLK and BK equations with a particular emphasis on the universal scaling properties and phase space structure involved. The results are valid for near zero impact parameter…

高能物理 - 唯象学 · 物理学 2009-11-10 Kari Rummukainen , Heribert Weigert

We perform a global fit to the structure function F_2 measured in lepton-proton experiments at small values of Bjorken-x, x\le 0.01, for all experimentally available values of Q^2, 0.045 GeV^2\le Q^2 \le 800 GeV^2. We show that the recent…

高能物理 - 唯象学 · 物理学 2009-09-01 J. L. Albacete , N. Armesto , J. G. Milhano , C. A. Salgado

We present a systematic formalism for the derivation of the kernel of the BFKL equation from that of the GLAP equation and conversely to any given order, with full inclusion of the running of the coupling. The running coupling is treated as…

高能物理 - 唯象学 · 物理学 2010-03-25 Richard D. Ball , Stefano Forte

We construct an anomalous dimension for small x evolution which goes beyond standard fixed order perturbative evolution by including resummed small x logarithms deduced from the leading order BFKL equation with running coupling.…

高能物理 - 唯象学 · 物理学 2008-11-26 Guido Altarelli , Richard D. Ball , Stefano Forte

The proton structure function F2 is studied in the low x regime using BFKL evolution. The next to leading logarithmic (NLL) analysis requires the inclusion of running coupling effects which lead to off-diagonal terms in the evolution…

高能物理 - 唯象学 · 物理学 2012-06-12 M. Hentschinski , A. Sabio Vera , C. Salas

We quantify the effect of high-energy JIMWLK evolution on the deformed structure or heavy (Uranium) and intermediate (Ruthenium) nuclei. The soft gluon emissions in the high-energy evolution are found to drive the initially deformed nuclei…

核理论 · 物理学 2024-11-25 Heikki Mäntysaari , Pragya Singh

We resum the recently calculated second order kernel of the BFKL equation. That kernel can be viewed as the sum of a conformally invariant part and a running coupling part. The conformally invariant part leads to a corrected BFKL intercept…

高能物理 - 唯象学 · 物理学 2009-10-31 Yuri V. Kovchegov , A. H. Mueller
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