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相关论文: Solving the Balitsky-Kovchegov equation at next to…

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We present numerical solutions of the $Q^2$ evolution equations at next-to-leading order (NLO) for unpolarized and polarized parton distributions, in both the flavor non-singlet and singlet channels. The numerical method is based on a…

高能物理 - 唯象学 · 物理学 2009-10-28 T. Weigl , W. Melnitchouk

We obtain an analytical expression for the Next-to-Next-to-Leading order of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) Pomeron eigenvalue in planar SYM N=4 using Quantum Spectral Curve (QSC) integrability based method. The result is verified…

高能物理 - 理论 · 物理学 2015-12-16 Nikolay Gromov , Fedor Levkovich-Maslyuk , Grigory Sizov

The decay widths of top quark to S-wave $b\bar{c}$ and $b\bar{b}$ bound states are evaluated at the next-to-leading(NLO) accuracy in strong interaction. Numerical calculation shows that the NLO corrections to these processes are remarkable.…

高能物理 - 唯象学 · 物理学 2014-11-20 Peng Sun , Li-Ping Sun , Cong-Feng Qiao

In order to investigate corrections to the common KdV approximation to long waves, we derive modulation equations for the evolution of long wavelength initial data for a Boussinesq equation. The equations governing the corrections to the…

偏微分方程分析 · 数学 2009-11-07 C. Eugene Wayne , J. Douglas Wright

We present a characteristic algorithm for computing the perturbation of a Schwarzschild spacetime by means of solving the Teukolsky equation. We implement the algorithm as a characteristic evolution code and apply it to compute the advanced…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Manuela Campanelli , Roberto Gomez , Sascha Husa , Jeffrey Winicour , Yosef Zlochower

We sum up the next-to-next-to-leading logarithmic virtual electroweak corrections to the high energy asymptotics of the neutral current four-fermion processes for light fermions to all orders in the coupling constants using the evolution…

高能物理 - 唯象学 · 物理学 2009-11-07 J. H. Kühn , S. Moch , A. A. Penin , V. A. Smirnov

In this study, we employ the homogeneous balance method to obtain an analytical solution to the Balitsky-Kovchegov equation with running coupling. We utilize two distinct prescriptions of the running coupling scale, namely the saturation…

高能物理 - 唯象学 · 物理学 2024-01-02 Yanbing Cai , Xiaopeng Wang , Xurong Chen

In this paper, we study the Kurdyka-{\L}ojasiewicz (KL) exponent, an important quantity for analyzing the convergence rate of first-order methods. Specifically, we develop various calculus rules to deduce the KL exponent of new (possibly…

最优化与控制 · 数学 2021-08-31 Guoyin Li , Ting Kei Pong

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

High-energy scattering in pQCD in the Regge limit is described by the evolution of Wilson lines governed by the BK equation. In the leading order, the BK equation is conformally invariant and the eigenfunctions of the linearized BFKL…

高能物理 - 唯象学 · 物理学 2024-09-09 Ian Balitsky , Giovanni A. Chirilli

We study a class of higher-order KdV equations. We show that the associated initial value problem is well posed in weighted Besov and Sobolev spaces for small initial data. We also prove ill-posedness results when in H^s(\R), for any real…

偏微分方程分析 · 数学 2007-08-29 Didier Pilod

We present the first fully consistent calculation of inclusive $\pi^0$ production at forward rapidities at next-to-leading order (NLO) accuracy in proton-lead collisions at $\sqrt{s}=8.16$ TeV within the Color Glass Condensate approach. The…

高能物理 - 唯象学 · 物理学 2024-02-23 Heikki Mäntysaari , Yossathorn Tawabutr

The calculations based on the next-to-leading logarithm (NLL) approximation for the Balitsky-Fadin-Kuraev-Lipatov (BKFL) evolution are presented for the Mueller-Navelet (MN) dijet production cross section, as well as for their ratios at…

高能物理 - 唯象学 · 物理学 2023-07-14 Anatolii Iu. Egorov , Victor T. Kim

This paper investigates the existence and uniqueness of solutions for a nonlinear evolution equation governed by an m-accretive operator A in a Banach space, presenting a perturbation term that does not satisfy the Lipschitz condition.

偏微分方程分析 · 数学 2026-05-01 G. Diaz , J. I. Dıaz

We seek multi-order exact solutions of a generalized shallow water wave equation along with those corresponding to a class of nonlinear systems described by the KdV, modified KdV, Boussinesq, Klein-Gordon and modified Benjamin-Bona-Mahony…

可精确求解与可积系统 · 物理学 2012-08-02 Bijan Bagchi , Supratim Das , Asish Ganguly

We calculate the complete ${\cal O}(\alpha_s)$ corrections to the quark decay $b\to ccs$ taking full account of the quark masses, but neglecting penguin contributions. For a c to the b quark mass ratio $m_c/m_b= 0.3$ and a strange quark…

高能物理 - 唯象学 · 物理学 2016-09-01 E. Bagan , Patricia Ball , B. Fiol , P. Gosdzinsky

The universal traveling wave solution to the Balitsky-Kovchegov equation with running coupling (and other equations in the same universality class) is extended to subleading orders at large rapidity and small dipole size $r$. The large…

高能物理 - 唯象学 · 物理学 2010-08-04 Guillaume Beuf

The nonlinear Balitsky-Kovchegov equation at small x is solved numerically, incorporating impact parameter dependence. Confinement is modeled by including effective gluon mass in the dipole evolution kernel, which regulates the splitting of…

高能物理 - 唯象学 · 物理学 2015-05-28 Jeffrey Berger , Anna M. Stasto

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 investigate consequences of the M\"obius invariance of the BFKL Hamiltonian and of the triple Pomeron vertex. In particular, we show that the triple Pomeron vertex in QCD, when restricted to the large $N_c$ limit and to the space of…

高能物理 - 唯象学 · 物理学 2008-11-26 J. Bartels , L. N. Lipatov , G. P. Vacca