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相关论文: Rapidity renormalized TMD soft and beam functions …

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The UV divergences associated with transverse-momentum dependent (TMD) parton distribution functions (PDF) are calculated together with the ensuing one-loop anomalous dimensions in the light-cone gauge. Time-reversal-odd effects in the…

高能物理 - 唯象学 · 物理学 2009-11-13 I. O. Cherednikov , N. G. Stefanis

Soft-Collinear Effective theory is used to perform threshold resummation for W and Z production at large transverse momentum to next-to-next-to-leading logarithmic accuracy including matching to next-to-leading fixed-order results. The…

高能物理 - 唯象学 · 物理学 2015-05-28 Thomas Becher , Christian Lorentzen , Matthew D. Schwartz

With a consistent definition of transverse-momentum-dependent(TMD) light-cone wave function of $B$-meson, we show that the amplitude of the radiative leptonic B-decay can be factorized at one-loop level as a convolution with the wave…

高能物理 - 唯象学 · 物理学 2009-11-11 J. P. Ma , Q. Wang

On the lattice, a renormalization group (RG) flow for two-dimensional partition functions expressed as a tensor network can be obtained using the tensor network renormalization (TNR) algorithm [G. Evenbly, G. Vidal, Phys. Rev. Lett. 115…

高能物理 - 理论 · 物理学 2018-09-17 Qi Hu , Adrian Franco-Rubio , Guifre Vidal

Random reshuffling with momentum (RRM) corresponds to the SGD optimizer with momentum option enabled, as found in many machine learning libraries like PyTorch and TensorFlow. Despite its widespread use, the convergence properties of RRM do…

最优化与控制 · 数学 2026-03-24 Junwen Qiu , Bohao Ma , Andre Milzarek

We calculate the generalized soft functions at $\mathcal{O}(\alpha_s^2)$ at next-to-leading power accuracy for the Drell-Yan process at threshold. The operator definitions of these objects contain explicit insertions of soft gauge and…

高能物理 - 唯象学 · 物理学 2021-10-27 Alessandro Broggio , Sebastian Jaskiewicz , Leonardo Vernazza

We show how Fermi liquid theory results can be systematically recovered using a renormalization group (RG) approach. Considering a two-dimensional system with a circular Fermi surface, we derive RG equations at one-loop order for the…

凝聚态物理 · 物理学 2024-09-12 N. Dupuis

The hemisphere soft function is calculated to order alpha_s^2. This is the first multi-scale soft function calculated to two loops. The renormalization scale dependence of the result agrees exactly with the prediction from effective field…

高能物理 - 唯象学 · 物理学 2011-09-16 Randall Kelley , Robert M. Schabinger , Matthew D. Schwartz , Hua Xing Zhu

We study resummation of transverse-momentum-related large logarithms generated from soft-gluon radiations in soft-collinear effective field theory. The anomalous dimensions of the effective quark and gluon currents, an important ingredient…

高能物理 - 唯象学 · 物理学 2010-04-05 Ahmad Idilbi , Xiangdong Ji , Feng Yuan

We perform resummation of soft gluon corrections to the total cross section for the process $pp \to t\bar{t}H$. The resummation is carried out at next-to-leading-logarithmic (NLL) accuracy using the Mellin space technique, extending its…

高能物理 - 唯象学 · 物理学 2016-04-20 Anna Kulesza , Leszek Motyka , Tomasz Stebel , Vincent Theeuwes

We present a computation of the global soft function for single-inclusive hadronic jet production at next-to-next-to-leading order (NNLO) in the strong coupling constant involving four light-like Wilson lines. Our soft function belongs to…

高能物理 - 唯象学 · 物理学 2021-10-04 Yaroslav Balytskyi , Jianbo Gao

We compute the next-to-leading order (NLO) hard correction to the gluon self-energy tensor with arbitrary soft momenta in a hot and/or dense weakly coupled plasma in Quantum Chromodynamics. Our diagrammatic computations of the two-loop and…

高能物理 - 唯象学 · 物理学 2023-11-14 Tyler Gorda , Risto Paatelainen , Saga Säppi , Kaapo Seppänen

We derive a compact representation of the renormalized $N$-jettiness soft function that is free of infrared and collinear divergences through next-to-next-to-leading order in perturbative QCD. The number of hard partons $N$ is a parameter…

高能物理 - 唯象学 · 物理学 2024-03-06 Prem Agarwal , Kirill Melnikov , Ivan Pedron

In recent years, tensor network renormalization (TNR) has emerged as an efficient and accurate method for studying (1+1)D quantum systems or 2D classical systems using real-space renormalization group (RG) techniques. One notable…

强关联电子 · 物理学 2023-12-01 Ying-Jie Wei , Zheng-Cheng Gu

The thrust distribution in electron-positron annihilation is a classical precision QCD observable. Using renormalization group (RG) evolution in Laplace space, we perform the resummation of logarithmically enhanced corrections in the dijet…

高能物理 - 唯象学 · 物理学 2015-03-19 Pier Francesco Monni , Thomas Gehrmann , Gionata Luisoni

We analyze classical dimer models on the square and triangular lattice using a tensor network representation of the dimers. The correlation functions are numerically calculated using the recently developed "Tensor renormalization group"…

强关联电子 · 物理学 2015-05-20 Krishanu Roychowdhury , Ching-Yu Huang

Non-global logarithms arise from the sensitivity of collider observables to soft radiation in limited angular regions of phase space. Their resummation to next-to-leading logarithmic (NLL) order has been a long standing problem and its…

高能物理 - 唯象学 · 物理学 2021-10-05 Andrea Banfi , Frédéric A. Dreyer , Pier Francesco Monni

In this proceeding we consider QCD radiative corrections to the production of colourless high-mass systems in hadron collisions. At small transverse momentum the logarithmically-enhanced contributions can be organized to all perturbative…

高能物理 - 唯象学 · 物理学 2014-07-21 Leandro Cieri

The precision program of the Large Hadron Collider (LHC) increasingly relies on the boosted regime, where top quark properties are probed at the TeV scale. However, the simultaneous presence of heavy quark mass effects and large logarithmic…

高能物理 - 唯象学 · 物理学 2026-02-16 Qian-Shun Dai , Ming-Jun Liu , Ding Yu Shao

In this work, we perform a lattice QCD study of the intrinsic, rapidity-independent soft function within the framework of large momentum effective theory. The computation is carried out using a gauge ensemble of $N_f=2+1+1$ clover-improved…