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相关论文: Next-to-Soft Virtual Resummation for QCD Observabl…

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The two-loop ultrasoft contributions to the next-to-leading logarithmic (NLL) running of the QCD potentials at order v^2 are determined. The results represent an important step towards the next-to-next-to-leading logarithmic (NNLL)…

高能物理 - 唯象学 · 物理学 2008-11-26 Andre H. Hoang , Maximilian Stahlhofen

We present Sequential Neural Variational Inference (SNVI), an approach to perform Bayesian inference in models with intractable likelihoods. SNVI combines likelihood-estimation (or likelihood-ratio-estimation) with variational inference to…

机器学习 · 统计学 2022-10-20 Manuel Glöckler , Michael Deistler , Jakob H. Macke

We study the factorization and resummation prediction on the jet mass spectrum in one-jet inclusive production at the LHC based on soft-collinear effective theory. The soft function with anti-$k_T$ algorithm is calculated at next-to-leading…

高能物理 - 唯象学 · 物理学 2015-04-07 Ze Long Liu , Chong Sheng Li , Jian Wang , Yan Wang

We present results for Drell-Yan production from the GENEVA Monte-Carlo framework. We combine the fully-differential NNLO calculation with higher-order resummation in the 0-jettiness resolution variable. The resulting parton-level events…

高能物理 - 唯象学 · 物理学 2015-11-25 Simone Alioli , Christian W. Bauer , Calvin Berggren , Frank J. Tackmann , Jonathan R. Walsh

I present the resummation of collinear and soft gluon corrections to single top quark production in the t channel at next-to-next-to-leading logarithm (NNLL) accuracy using two-loop soft anomalous dimensions. The expansion of the resummed…

高能物理 - 唯象学 · 物理学 2011-05-25 Nikolaos Kidonakis

We study the semi-inclusive limit of the deep inelastic scattering and Drell-Yan (DY) processes in soft collinear effective theory. In this regime so-called threshold logarithms must be resummed to render perturbation theory well behaved.…

高能物理 - 唯象学 · 物理学 2017-07-17 Sean Fleming , Ou Z. Labun

We gauge the impact of soft-gluon resummation on quark distributions by performing a simple fit of Deep Inelastic Scattering structure function data using next-to-leading order (NLO) and next-to-leading-logarithmic (NLL)-resummed…

高能物理 - 唯象学 · 物理学 2009-11-11 Gennaro Corcella , Lorenzo Magnea

In recent years, resolution adaptation based on deep neural networks has enabled significant performance gains for conventional (2D) video codecs. This paper investigates the effectiveness of spatial resolution resampling in the context of…

图像与视频处理 · 电气工程与系统科学 2022-02-28 Angeliki Katsenou , Fan Zhang , David Bull

We carry out the first complete calculation of kinematic power corrections $\sim t/Q^2$ and $\sim m^2/Q^2$ to several key observables in Deeply Virtual Compton Scattering. The issue of convention dependence of the leading twist…

高能物理 - 唯象学 · 物理学 2014-04-23 Vladimir M. Braun , Alexander N. Manashov , Dieter Mueller , Bjoern M. Pirnay

We compute in the heavy quark effective theory the soft coefficient D_2 entering the resummation of next-to-next-to-leading threshold logarithms for jets initiated by a quark with a small mass compared to the hard scale of the process. We…

高能物理 - 唯象学 · 物理学 2009-01-16 Ugo Aglietti , Leonardo Di Giustino , Giancarlo Ferrera , Luca Trentadue

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 use the known soft and collinear limits of tree- and one-loop scattering amplitudes -- computed over a decade ago -- to explicitly construct a subtraction scheme for next-to-next-to-leading order (NNLO) computations. Our approach…

高能物理 - 唯象学 · 物理学 2015-06-03 Radja Boughezal , Kirill Melnikov , Frank Petriello

This paper discusses a few algorithms for updating the approximate Singular Value Decomposition (SVD) in the context of information retrieval by Latent Semantic Indexing (LSI) methods. A unifying framework is considered which is based on…

数值分析 · 数学 2014-05-14 Eugene Vecharynski , Yousef Saad

We study one-loop QCD corrections to the single transverse spin asymmetry in Drell-Yan process. The invariant mass of virtual photon and angular distributions of final lepton in Collins-Soper frame are measured. Especially, the transverse…

高能物理 - 唯象学 · 物理学 2026-04-02 Guang-Peng Zhang

The theoretical description of Drell-Yan (DY) transverse momentum spectra over wide kinematic regions in energy, mass and transverse momentum requires not only fixed-order perturbative QCD calculations but also soft-gluon QCD resummations…

高能物理 - 唯象学 · 物理学 2021-06-04 Aleksandra Lelek

I present results for the resummation of soft and collinear gluon contributions to QCD hard-scattering cross sections at two loops. This requires the calculation of UV and IR divergences through two loops and the construction of soft…

高能物理 - 唯象学 · 物理学 2010-11-19 Nikolaos Kidonakis

Soft and collinear radiation is responsible for large corrections to many hadronic cross sections, near thresholds for the production of heavy final states. There is much interest in extending our understanding of this radiation to…

高能物理 - 唯象学 · 物理学 2018-01-12 D. Bonocore , E. Laenen , L. Magnea , L. Vernazza , C. D. White

We calculate the next-to-leading order perturbative QCD corrections to the transverse momentum weighted single transverse spin asymmetry in Drell-Yan lepton pair production in hadronic collisions. We identify the splitting function relevant…

高能物理 - 唯象学 · 物理学 2009-07-30 Werner Vogelsang , Feng Yuan

The description of the Drell-Yan (DY) transverse momentum spectrum requires matching of fixed order QCD calculations with soft gluon resummation up to all orders in the QCD coupling. It has been noticed in the literature that a consistent…

高能物理 - 唯象学 · 物理学 2022-03-21 Aleksandra Lelek

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