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相关论文: Studies of Transverse-Momentum-Dependent distribut…

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Gluon transverse-momentum dependent distributions (TMDs) are very important for revealing the internal structure of the proton. They correspond to a variety of experiments and are among the major tasks of the future electron-ion colliders.…

高能物理 - 唯象学 · 物理学 2024-03-12 Hongyao Yu , Zhi Hu , Siqi Xu , Chandan Mondal , Xingbo Zhao , James P. Vary

Used in the fixed-target mode, the multi-TeV LHC proton and lead beams allow for studies of heavy-flavour hadroproduction with unprecedented precision at backward rapidities - far negative Feyman-x - using conventional detection techniques.…

高能物理 - 实验 · 物理学 2015-06-17 L. Massacrier , B. Trzeciak , F. Fleuret , C. Hadjidakis , D. Kikola , J. P. Lansberg , H. -S. Shao

In 2016 and 2017, the COMPASS Collaboration at CERN collected a large sample of DIS events with a longitudinally polarized 160 GeV/c muon beam scattering off a liquid hydrogen target. Part of the collected data has been analyzed to extract…

高能物理 - 实验 · 物理学 2021-07-23 Andrea Moretti

I report on our investigations into the impact of (un)polarized transverse momentum dependent parton distribution functions (TMD PDFs or TMDs) for gluons at hadron colliders, especially at A Fixed Target Experiment at the LHC (AFTER@LHC).…

高能物理 - 唯象学 · 物理学 2016-05-25 Andrea Signori

The goal of LHCspin is to develop, in the next few years, innovative solutions and cutting-edge technologies to access spin physics in polarised fixed-target collisions at high energy, exploring the unique kinematic regime offered by LHC…

高能物理 - 实验 · 物理学 2021-11-09 M. Santimaria , V. Carassiti , G. Ciullo , P. Di Nezza , P. Lenisa , S. Mariani , L. L. Pappalardo , E. Steffens

We present a study of the transverse momentum spectra and their evolution in function of the position of the azimuthal of the particles associated to the leading particle. Additionally, the behavior of the spherocity distribution in the…

高能物理 - 唯象学 · 物理学 2021-09-01 Aditya Nath Mishra , Gergely Gábor Barnaföldi , Guy Paić

Numerous papers have appeared recently showing fits to transverse momentum ($p_T$) spectra measured at the Large Hadron Collider (LHC) in proton - proton collisions.This talk focuses on the fits extending to very large values of the…

高能物理 - 唯象学 · 物理学 2017-03-08 J. Cleymans

The extension of the statistical parton distributions to include their transverse momentum dependence (TMD) is revisited by considering that the proton target has a finite longitudinal momentum. The TMD will be generated by means of a…

高能物理 - 唯象学 · 物理学 2015-06-15 Claude Bourrely , Franco Buccella , Jacques Soffer

New low-mass particles with very small couplings to standard model particles that travel significant distances before decaying are interesting candidates to address some of the most intriguing questions of modern physics. In this paper, I…

高能物理 - 唯象学 · 物理学 2024-11-05 Jeremi Niedziela

We present a summary of a recent workshop held at Duke University on Partonic Transverse Momentum in Hadrons: Quark Spin-Orbit Correlations and Quark-Gluon Interactions. The transverse momentum dependent parton distribution functions…

The transverse momentum ($p_{\mathrm T}$) distribution of primary charged particles is measured in minimum bias (non-single-diffractive) p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with the ALICE detector at the LHC. The…

核实验 · 物理学 2016-06-20 ALICE Collaboration

Its cornerstone were studies of hadron production in deep inelastic scattering (DIS), which can be interpreted in the transverse-momentum-dependent (TMD) factorisation framework, allowing to access the distributions of polarisation and…

高能物理 - 实验 · 物理学 2026-05-13 Jan Matousek

The transverse momentum ($p_T$) spectra of charged hadrons in $p+p$, $p+Pb$ and $Pb+Pb$ collisions at $\sqrt {s_{NN}} = 5.02$ TeV are presented here within the rapidity range of $-2.5<y<2.0$. We study the medium effects, which is produced…

高能物理 - 唯象学 · 物理学 2024-06-07 Kapil Saraswat , Prashanta Kumar Khandai , Deependra Singh Rawat , Venktesh Singh

The study and characterisation of transverse-momentum-dependent distribution functions (TMDs) is a major goal of the Electron-Ion Collider (EIC) physics programme. The study of gluon TMDs poses a greater challenge than for quark TMDs in DIS…

高能物理 - 实验 · 物理学 2012-12-17 Thomas Burton

We present results for transverse single-spin asymmetries in proton-proton collisions at kinematics relevant for AFTER, a proposed fixed-target experiment at the Large Hadron Collider. These include predictions for pion, jet, and direct…

高能物理 - 唯象学 · 物理学 2015-04-30 K. Kanazawa , Y. Koike , A. Metz , D. Pitonyak

We propose an observable $q_*$ sensitive to transverse momentum dependence (TMD) in $e N \to e h X$, with $q_*/E_N$ defined purely by lab-frame angles. In 3D measurements of confinement and hadronization this resolves the crippling issue of…

高能物理 - 唯象学 · 物理学 2023-06-21 Anjie Gao , Johannes K. L. Michel , Iain W. Stewart , Zhiquan Sun

Using the light-front holographic model, we study the transverse momentum dependent parton distributions (TMDs) for the case of pion. At leading twist, the unpolarized parton distribution function $ f_{1\pi}(x,\bfk^{2}) $ and the…

高能物理 - 唯象学 · 物理学 2019-08-26 Navdeep Kaur , Harleen Dahiya

Transverse Momentum Dependent (TMD) parton distributions obtained from the Parton Branching (PB) method are combined with next-to-leading-order (NLO) calculations of Drell-Yan (DY) production. We apply the MCatNLO method for the hard…

It has been proposed that the Siverse transverse single spin asymmetry in Drell-Yan production in transversely polarized p+p collisions would have an opposite sign compared to what has been observed in the polarized Semi-Inclusive Deep…

核实验 · 物理学 2015-05-20 Ming X. Liu , Xiaodong Jiang , Donald G. Crabb , Jian-ping Chen , Mei Bai

Transverse momentum dependent (TMD) parton distributions in a proton are important in high energy physics from both theoretical and phenomenological points of view. Using the latest RHIC and LHC data on the inclusive soft hadron production…

高能物理 - 唯象学 · 物理学 2018-09-19 N. A. Abdulov , H. Jung , A. V. Lipatov , G. I. Lykasov , M. A. Malyshev