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A common library, TMDlib2, for Transverse-Momentum-Dependent distributions (TMDs) and unintegrated parton distributions (uPDFs) is described, which allows for easy access of commonly used TMDs and uPDFs, providing a three-dimensional (3D)…

We provide a concise overview on transverse momentum dependent (TMD) parton distribution functions, their application to topical issues in high-energy physics phenomenology, and their theoretical connections with QCD resummation, evolution…

This handbook provides a comprehensive review of transverse-momentum-dependent parton distribution functions and fragmentation functions, commonly referred to as transverse momentum distributions (TMDs). TMDs describe the distribution of…

Collinear parton distribution functions (cPDFs) and transverse momentum dependent distributions (TMDs) are essential for calculating cross sections in high-energy physics, particularly within collinear and kt-factorization frameworks.…

高能物理 - 唯象学 · 物理学 2026-02-16 R. Kord Valeshabadi , S. Rezaie

Transverse-momentum-dependent parton distributions (TMDs) provide three-dimensional images of the partonic structure of the nucleon in momentum space. We made impressive progress in understanding TMDs, both from the theoretical and…

高能物理 - 唯象学 · 物理学 2015-05-20 Alessandro Bacchetta

Transverse momentum dependent (TMD) parton distribution functions (PDFs), TMDs for short, are defined as the Fourier transform of matrix elements of nonlocal combinations of quark and gluon fields. The nonlocality is bridged by gauge links,…

高能物理 - 唯象学 · 物理学 2015-09-30 D. Boer , M. G. A. Buffing , P. J. Mulders

We derive relations between transverse momentum dependent distribution functions (TMDs) and the usual parton distribution functions (PDFs) in the 3D covariant parton model, which follow from Lorentz invariance and the assumption of a…

高能物理 - 唯象学 · 物理学 2011-05-10 A. V. Efremov , P. Schweitzer , O. V. Teryaev , P. Zavada

Transverse momentum dependent parton distributions (TMDs) appear in many scattering processes at high energy, from the semi-inclusive DIS experiments at a few GeV to the Higgs transverse momentum distribution at the LHC. Predictions for TMD…

高能物理 - 唯象学 · 物理学 2016-03-23 Daniel Boer

Transverse Momentum Dependent (TMD) parton distribution functions (PDFs) also take into account the transverse momentum ($p_T$) of the partons. The $p_T$-integrated analogues can be linked directly to quark and gluon matrix elements using…

高能物理 - 唯象学 · 物理学 2014-04-02 P. J. Mulders , M. G. A. Buffing

Transverse Momentum Dependent (TMD) parton distribution functions (PDFs), in short referred to as TMDs, also take into account the transverse momentum (pT) of the partons. Just as the pT-integrated analogues we want to link them to quark…

高能物理 - 唯象学 · 物理学 2015-06-17 M. G. A. Buffing , P. J. Mulders , A. Mukherjee

In using transverse-momentum-dependent (TMD) parton densities and fragmentation functions, important non-perturbative information is at large transverse position $b_T$. This concerns both the TMD functions and their evolution. Fits to high…

高能物理 - 唯象学 · 物理学 2015-07-21 John Collins , Ted C. Rogers

We derive relations between polarized transverse momentum dependent distribution functions (TMDs) and the usual parton distribution functions (PDFs) in the 3D covariant parton model, which follow from Lorentz invariance and the assumption…

高能物理 - 唯象学 · 物理学 2015-03-17 A. V. Efremov , P. Schweitzer , O. V. Teryaev , P. Zavada

Our knowledge on the three-dimensional momentum structure of hadrons is encoded in the Transverse Momentum Dependent partonic distribution and fragmentation functions (TMDs). A brief and updated review of the TMDs and of the processes in…

高能物理 - 唯象学 · 物理学 2015-05-30 M. Boglione

We show that transverse-momentum-dependent parton distribution functions (TMDPDFs), important non-perturbative quantities for describing the properties of hadrons in high-energy scattering processes such as Drell-Yan and semi-inclusive…

高能物理 - 唯象学 · 物理学 2020-12-30 Xiangdong Ji , Yizhuang Liu , Yu-Sheng Liu

Parton branching methods underlie the Monte Carlo (MC) generators, being therefore of key importance for obtaining high energy physics predictions. We construct a new parton branching algorithm which for the first time incorporates the…

高能物理 - 唯象学 · 物理学 2023-01-02 Aleksandra Lelek

Higher-twist transverse momentum dependent parton distribution functions (TMDs) are a valuable probe of the quark-gluon dynamics in the nucleon, and play a vital role for the explanation of sizable azimuthal asymmetries in hadron production…

高能物理 - 唯象学 · 物理学 2015-06-23 C. Lorcé , B. Pasquini , P. Schweitzer

We develop a theoretical framework to match transverse momentum dependent parton distribution functions (TMD PDFs) onto chiral effective theory operators. In this framework the TMD PDF is expressed as a convolution of TMD hadronic…

高能物理 - 唯象学 · 物理学 2024-05-27 Marston Copeland , Thomas Mehen

The transverse momentum dependent distributions (TMD) are an essential part of the factorization theorems in vector boson production. They are non-perturbative, double scale dependent functions that asymptotically match onto collinear…

高能物理 - 唯象学 · 物理学 2022-05-13 Ignazio Scimemi

The transverse momentum dependent parton distribution/fragmentation functions (TMDs) are essential in the factorization of a number of processes like Drell-Yan scattering, vector boson production, semi-inclusive deep inelastic scattering,…

高能物理 - 唯象学 · 物理学 2018-06-05 Miguel G. Echevarria , Ignazio Scimemi , Alexey Vladimirov

The concepts and methods of factorization using transverse-momentum-dependent (TMD) parton densities and/or fragmentation functions are summarized.

高能物理 - 唯象学 · 物理学 2015-06-16 John Collins
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