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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…

High Energy Physics - Phenomenology · Physics 2021-02-24 S. Bastami , L. Gamberg , B. Parsamyan , B. Pasquini , A. Prokudin , P. Schweitzer

We map the distribution of unpolarized quarks inside a unpolarized pion as a function of the quark's transverse momentum, encoded in unpolarized Transverse Momentum Distributions (TMDs). We extract the pion TMDs from available data of…

High Energy Physics - Phenomenology · Physics 2023-01-25 Matteo Cerutti , Lorenzo Rossi , Simone Venturini , Alessandro Bacchetta , Valerio Bertone , Chiara Bissolotti , Marco Radici

We study the transverse momentum spectrum of dilepton produced in the unpolarized $\pi^- N$ Drell-Yan process, using transverse momentum dependent factorization up to next-to-logarithmic order of QCD. We extract the nonperturbative Sudakov…

High Energy Physics - Phenomenology · Physics 2017-09-20 Xiaoyu Wang , Zhun Lu , Ivan Schmidt

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.…

High Energy Physics - Phenomenology · Physics 2019-10-03 A. Courtoy

We present an extraction of unpolarized partonic transverse momentum distributions (TMDs) from a simultaneous fit of available data measured in semi-inclusive deep-inelastic scattering, Drell-Yan and Z-boson production. To connect data at…

High Energy Physics - Phenomenology · Physics 2017-08-02 Alessandro Bacchetta , Filippo Delcarro , Cristian Pisano , Marco Radici , Andrea Signori

We present an analysis of unpolarized Drell-Yan pair production in pion-nucleus scattering with a particular focus into the pion dynamics. The study consists in analyzing the effect of the partonic longitudinal and, especially, transverse…

High Energy Physics - Phenomenology · Physics 2020-01-08 A. Courtoy

This article presents the review of the current understanding on the pion-nucleon Drell-Yan process from the point of view of the TMD factorization. Using the evolution formalism for the unpolarized and polarized TMD distributions developed…

High Energy Physics - Phenomenology · Physics 2019-02-08 Xiaoyu Wang , Zhun Lu

We present an extraction of unpolarized quark transverse-momentum-dependent parton distribution functions (TMD PDFs) from Drell-Yan data within a Bayesian inference framework, incorporating artificial intelligence at multiple stages of the…

High Energy Physics - Phenomenology · Physics 2026-04-16 Zhong-Bo Kang , Luke Sellers , Congyue Zhang , Curtis Zhou

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…

High Energy Physics - Phenomenology · Physics 2018-08-29 Federico Alberto Ceccopieri , Aurore Courtoy , Santiago Noguera , Sergio Scopetta

The factorization theorem for $q_T$ spectra in Drell-Yan processes, boson production and semi-inclusive deep inelastic scattering allows for the determination of the non-perturbative parts of transverse momentum dependent parton…

High Energy Physics - Phenomenology · Physics 2015-06-23 Umberto D'Alesio , Miguel G. Echevarría , Stefano Melis , Ignazio Scimemi

We investigate the single transverse-spin asymmetry with a $\sin (2\phi-\phi_S)$ modulation in the pion-induced Drell-Yan process within the theoretical framework of the transverse momentum dependent factorization. The asymmetry is…

High Energy Physics - Phenomenology · Physics 2020-03-18 Hui Li , Xiaoyu Wang , Zhun Lu

We consider the azimuthal distribution of the final observed hadron in semi-inclusive deep-inelastic scattering and the lepton pair in the Drell-Yan process. In particular, we focus on the $\cos \phi$ modulation of the unpolarized cross…

High Energy Physics - Phenomenology · Physics 2019-08-14 Alessandro Bacchetta , Giuseppe Bozzi , Miguel G. Echevarria , Cristian Pisano , Alexey Prokudin , Marco Radici

We present the extraction of unpolarized quark transverse momentum dependent parton distribution functions (TMDPDFs) and the non-perturbative part of TMD evolution kernel from the global analysis of Drell-Yan and $Z$-boson production data.…

High Energy Physics - Phenomenology · Physics 2019-06-26 Valerio Bertone , Ignazio Scimemi , Alexey Vladimirov

We present a fit of the transverse momentum spectrum for Drell-Yan and semi-inclusive deep inelastic scattering data, based on transverse momentum dependent (TMD) factorization at N$^4$LL accuracy. Our analysis shows good agreement with the…

High Energy Physics - Phenomenology · Physics 2025-10-06 Valentin Moos , Ignazio Scimemi , Alexey Vladimirov , Pia Zurita

We present an extraction of unpolarised Transverse-Momentum-Dependent Parton Distribution Functions based on Drell-Yan production data from different experiments, including those at the LHC, and spanning a wide kinematic range. We deal with…

High Energy Physics - Phenomenology · Physics 2020-08-26 Alessandro Bacchetta , Valerio Bertone , Chiara Bissolotti , Giuseppe Bozzi , Filippo Delcarro , Fulvio Piacenza , Marco Radici

The roles of the Drell-Yan experiments in studying the Transverse-Momentum-Dependent (TMD) parton distributions are discussed. Recent results from the Fermilab E866 experiment on the angular distributions of Drell-Yan dimuons in $p+p$ and…

Nuclear Experiment · Physics 2017-08-23 Jen-Chieh Peng

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,…

High Energy Physics - Phenomenology · Physics 2018-06-05 Miguel G. Echevarria , Ignazio Scimemi , Alexey Vladimirov

We evaluate the cross section for the pion induced Drell-Yan process in two different models of the pion light-front wave function, inspired by light-front holographic approaches. We obtain the valence quark distribution functions in those…

High Energy Physics - Phenomenology · Physics 2020-07-23 Jiangshan Lan , Chandan Mondal

We investigate Drell-Yan pair production in a QCD inspired model, which takes into account all relevant hard processes up to $O(\alpha_s)$. To address the known shortfalls of such a fixed order calculation we introduce phenomenological…

High Energy Physics - Phenomenology · Physics 2011-08-29 Fabian Eichstaedt , Stefan Leupold , Kai Gallmeister , Hendrik van Hees , Ulrich Mosel

We apply the joint threshold and transverse momentum dependent (TMD) factorization theorem to introduce new threshold-TMD distribution functions, including threshold-TMD parton distribution functions (PDFs) and fragmentation functions…

High Energy Physics - Phenomenology · Physics 2024-06-06 Zhong-Bo Kang , Kajal Samanta , Ding Yu Shao , Yang-Li Zeng
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