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相关论文: Soft-Gluon Resummation and the Valence Parton Dist…

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The parton distribution function of the pion in the valence region is extracted in a next-to-leading order analysis from Fermilab E-615 pionic Drell-Yan data. The effects of the parameterization of the pion's valence distributions are…

核实验 · 物理学 2009-11-11 K. Wijesooriya , P. E. Reimer , R. J. Holt

We perform the first global QCD analysis of pion valence, sea quark, and gluon distributions within a Bayesian Monte Carlo framework with threshold resummation on Drell-Yan cross sections at next-to-leading log accuracy. Exploring various…

高能物理 - 唯象学 · 物理学 2021-12-01 P. C. Barry , Chueng-Ryong Ji , N. Sato , W. Melnitchouk

A rainbow-ladder truncation of QCD's Dyson-Schwinger equations, constrained by existing applications to hadron physics, is employed to compute the valence-quark parton distribution functions of the pion and kaon. Comparison is made to pi-N…

核理论 · 物理学 2011-07-04 Trang Nguyen , Adnan Bashir , Craig D. Roberts , Peter C. Tandy

We perform a new Monte Carlo QCD analysis of pion parton distribution functions, including, for the first time, transverse momentum dependent pion-nucleus Drell-Yan cross sections together with $p_{\rm T}$-integrated Drell-Yan and leading…

高能物理 - 唯象学 · 物理学 2021-12-01 N. Y. Cao , P. C. Barry , N. Sato , W. Melnitchouk

We present the differential predictions for the rapidity distribution of a pair of leptons through the Drell-Yan (DY) process at the LHC taking into account the soft-virtual (SV) as well as next-to-soft virtual (NSV) resummation effects in…

高能物理 - 唯象学 · 物理学 2023-06-07 A. H. Ajjath , Pooja Mukherjee , V. Ravindran , Aparna Sankar , Surabhi Tiwari

We obtain the pion and the kaon parton distribution functions from the eigenstates of a light front effective Hamiltonian in the constituent quark-antiquark representation suitable for low-momentum scale applications. By taking these scales…

核理论 · 物理学 2019-05-07 Jiangshan Lan , Chandan Mondal , Shaoyang Jia , Xingbo Zhao , James P. Vary

We present a new analysis to extract pion's parton distribution functions (PDFs) in the framework of the statistical model. Starting from the statistical model framework first developed for the spin-1/2 nucleon, we apply appropriate…

高能物理 - 唯象学 · 物理学 2021-02-03 Claude Bourrely , Franco Buccella , Jen-Chieh Peng

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

The quantum statistical approach proposed more than one decade ago was used to determine the parton distributions for the proton by considering a large set of accurate Deep Inelastic Scattering experimental results. We propose to extend…

高能物理 - 唯象学 · 物理学 2018-12-05 Claude Bourrely , Jacques Soffer

We present a thorough analysis of unpolarized Drell-Yan (DY) pair production in pion-nucleus scattering. On the nucleus side, we use nuclear parton distributions along with parametrisations of the nucleon partonic transverse distribution…

高能物理 - 唯象学 · 物理学 2018-08-29 Federico Alberto Ceccopieri , Aurore Courtoy , Santiago Noguera , Sergio Scopetta

We examine critically the theoretical underpinnings and phenomenological implications of soft gluon (threshold) resummation of rapidity distributions at a hadron collider, taking Drell-Yan production at the Tevatron and the LHC as a…

高能物理 - 唯象学 · 物理学 2015-03-17 Marco Bonvini , Stefano Forte , Giovanni Ridolfi

It has been observed in the literature that measurements of low-mass Drell-Yan (DY) transverse momentum spectra at low center-of-mass energies $\sqrt{s}$ are not well described by perturbative QCD calculations in collinear factorization in…

The Drell-Yan process provides important information on the internal structure of hadrons including transverse momentum dependent parton distribution functions (TMDs). In this work we present calculations for all leading twist structure…

高能物理 - 唯象学 · 物理学 2021-02-24 S. Bastami , L. Gamberg , B. Parsamyan , B. Pasquini , A. Prokudin , P. Schweitzer

Partonic cross sections for the production of massive objects in hadronic collisions receive large corrections when the invariant mass of the initial-state partons is just above the production threshold. Since typically the center-of-mass…

高能物理 - 唯象学 · 物理学 2009-04-17 Thomas Becher , Matthias Neubert , Gang Xu

During the INT-18-3 workshop, we presented an analysis of unpolarized Drell-Yan pair production in pion-nucleus scattering with a particular focus into the pion Transverse Momentum Distributions in view of the future Electron Ion Collider.…

高能物理 - 唯象学 · 物理学 2019-10-03 A. Courtoy

We report on the computation of the angle-between-leptons distribution in Drell-Yan processes. More precisely we study the recently introduced variable phi*, which provides us with a more accurate probe of the low Q_T domain of Z boson…

高能物理 - 唯象学 · 物理学 2011-07-04 Simone Marzani , Andrea Banfi , Mrinal Dasgupta , Lee Tomlinson

We present an analysis to extract kaon parton distribution functions (PDFs) for the first time using meson-induced Drell-Yan and quarkonium production data. Starting from the statistical model first developed for determining the partonic…

高能物理 - 唯象学 · 物理学 2023-09-21 Claude Bourrely , Franco Buccella , Wen-Chen Chang , Jen-Chieh Peng

The Drell-Yan massive lepton-pair production in hadronic collisions provides a unique tool complementary to the Deep-Inelastic Scattering for probing the partonic substructures in hadrons. We review key concepts, approximations, and…

高能物理 - 唯象学 · 物理学 2015-06-18 Jen-Chieh Peng , Jian-Wei Qiu

We extract the pion transverse momentum dependent (TMD) parton distribution by fitting the pion-induced Drell-Yan process within the framework of TMD factorization. The analysis is done at the next-to-next-to-leading order (NNLO) with…

高能物理 - 唯象学 · 物理学 2020-01-08 Alexey Vladimirov

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
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