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相关论文: Transverse-momentum-dependent gluon distribution f…

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We calculate the small-b (or large-qT) matching of transverse momentum dependent (TMD) distribution for linearly polarized gluons to the integrated gluon distributions at the next-to-next-to-leading order (NNLO). This is the last missing…

高能物理 - 唯象学 · 物理学 2020-01-08 Daniel Gutierrez-Reyes , Sergio Leal-Gomez , Ignazio Scimemi , Alexey Vladimirov

This is intend to provide an overview of the theoretical and phenomenological parts of the TMD (Transverse Momentum Dependent parton distribution and fragmentation functions) studies. By comparing with the theoretical framework that we have…

高能物理 - 唯象学 · 物理学 2016-03-23 Zuo-tang Liang

We show how transverse momentum dependent gluon distributions could be probed at a future Electron-Ion Collider through the analysis of transverse momentum spectra and azimuthal asymmetries in the inclusive electroproduction of $J/\psi$ and…

高能物理 - 唯象学 · 物理学 2020-01-01 Cristian Pisano

We present first results from our analysis of the most general quark-quark correlator of the nucleon, which can be parameterized in terms of so-called generalized transverse momentum dependent parton distributions. These results include the…

高能物理 - 唯象学 · 物理学 2008-12-23 S. Meissner , A. Metz , M. Schlegel

We study the leading twist gluon generalized parton distributions (GPDs) and the gluon angular momentum inside the proton within a light-cone spectator model. Using the light-cone wave functions derived from the model, we provide the…

高能物理 - 唯象学 · 物理学 2023-02-10 Chentao Tan , Zhun Lu

The back-to-back $J/\psi$ and $\pi$ associated production at $e^+ e^-$ colliders is proposed to detect the gluon transverse momentum dependent(TMD) fragmentation functions. TMD factorization is assumed for this process. With spinless pion,…

高能物理 - 唯象学 · 物理学 2015-04-28 Guang-Peng Zhang

We investigate the transverse momentum dependent (TMD) quark and gluon distribution functions in the modified chiral quark model ($\chi QM$). Calculations of the TMD quark and gluon densities, using the modified $\chi QM$ are done for the…

高能物理 - 唯象学 · 物理学 2014-06-30 H. Nematollahi , M. M. Yazdanpannah , A. Mirjalili

The Wigner distributions (WDs) in boost-invariant longitudinal space for unpolarized, longitudinally polarized and linearly polarized gluons in a proton are presented in the framework of the light-front gluon spectator model inspired by…

高能物理 - 唯象学 · 物理学 2026-03-27 Sonia , Tanmay Maji , Hemant Kumar

In this contribution, we will present a short overview of the transverse momentum dependent (TMD) approach as a tool for studying the 3-dimensional structure of hadrons in high-energy (un)polarized hadron collisions. We will then summarize…

高能物理 - 唯象学 · 物理学 2021-04-28 U. D'Alesio , F. Murgia , C. Pisano

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

Transverse-momentum dependent parton distributions (TMDs) are studied in the framework of quark models. Results for the six T-even TMDs are obtained from the overlap of three-quark light-cone wave functions, using both the chiral…

高能物理 - 唯象学 · 物理学 2011-09-28 Cedric Lorce , Barbara Pasquini

We demonstrate that gluon transverse-momentum-dependent parton distribution functions (TMDPDFs) can be extracted from lattice calculations of appropriate Euclidean correlations in large-momentum effective theory (LaMET). Based on…

高能物理 - 唯象学 · 物理学 2023-02-14 Ruilin Zhu , Yao Ji , Jian-Hui Zhang , Shuai Zhao

We study the transverse momentum dependent quark-gluon-quark correlation function. Using a spectator diquark model, we calculate the eight time-reversal-odd interaction-dependent twist-3 quark distributions appearing in the decomposition of…

高能物理 - 唯象学 · 物理学 2012-09-04 Zhun Lu , Ivan Schmidt

Transverse-momentum dependent parton distributions (TMDs) are studied in the framework of quark models. In particular, quark model relations among TMDs are reviewed and their physical origin is discussed in terms of rotational-symmetry…

高能物理 - 唯象学 · 物理学 2015-05-28 Cedric Lorce , Barbara Pasquini

Previous Lattice QCD calculations of nucleon transverse momentum-dependent parton distributions (TMDs) focused on the case of transversely polarized nucleons, and thus did not encompass two leading-twist TMDs associated with longitudinal…

高能物理 - 格点 · 物理学 2023-01-18 M. Engelhardt , N. Hasan , T. Izubuchi , C. Kallidonis , S. Krieg , S. Meinel , J. Negele , A. Pochinsky , G. Silvi , S. Syritsyn

We investigate the dependence of the deep inelastic proton structure function $F_L(x, Q^2)$ on different forms of the transverse momentum dependent (TMD, or unintegrated) gluon distribution. We present a comparison of theoretical results…

高能物理 - 唯象学 · 物理学 2023-01-25 Lipatov A. V. , Lykasov G. I. , Malyshev M. A

Comparing the respective structures of the correlators defining generalized and transverse momentum dependent parton distributions, one finds possible relations between these two objects. Although it looks like the relations found do not…

高能物理 - 唯象学 · 物理学 2007-11-01 S. Meissner , A. Metz , M. Schlegel , K. Goeke

We calculate in this paper the perturbative gluon transverse momentum dependent parton distribution functions (TMDPDFs) and fragmentation functions (TMDFFs) using the exponential regulator for rapidity divergences. We obtain results for…

高能物理 - 唯象学 · 物理学 2020-01-29 Ming-Xing Luo , Tong-Zhi Yang , Hua Xing Zhu , Yu Jiao Zhu

The leading twist transverse momentum dependent parton distributions (TMDs) are studied in a light-cone description of the nucleon where the Fock expansion is truncated to consider only valence quarks. General analytic expressions are…

高能物理 - 唯象学 · 物理学 2010-05-28 B. Pasquini , S. Cazzaniga , S. Boffi

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