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A back-to-back semi-inclusive $J/\psi + jet$ production is a promising process to study gluon transverse momentum distribution (TMDs) at the future electron-ion collider (EIC). A back-to-back configuration allows a higher transverse…

High Energy Physics - Phenomenology · Physics 2024-08-13 Raj Kishore , Asmita Mukherjee , Amol Pawar , Sangem Rajesh , Mariyah Siddiqah

We investigate the azimuthal asymmetries such as $\cos2{\phi_T}$ and Sivers symmetry for $J/\psi$ and $\pi^\pm$ production in electron-proton scattering, focusing on scenarios where the $J/\psi$ and the pion are produced in an almost…

High Energy Physics - Phenomenology · Physics 2024-08-13 Khatiza Banu , Asmita Mukherjee , Amol Pawar , Sangem Rajesh

We calculate azimuthal asymmetries in back-to-back production of $J/\psi$ and a photon in electron-proton scattering process at the future electron-ion collider (EIC) using TMD factorization framework. We consider the cases where the proton…

High Energy Physics - Phenomenology · Physics 2023-01-18 Dipankar Chakrabarti , Raj Kishore , Asmita Mukherjee , Sangem Rajesh

$J/\psi$- or $\Upsilon$-pair production at the LHC are promising processes to study the gluon transverse momentum distributions (TMDs) which remain very poorly known. In this article, we improve on previous results by including the TMD…

High Energy Physics - Phenomenology · Physics 2020-02-26 Florent Scarpa , Daniël Boer , Miguel G. Echevarria , Jean-Philippe Lansberg , Cristian Pisano , Marc Schlegel

We calculate the Sivers and $\cos2\phi$ azimuthal asymmetries in $J/\psi$ production in polarized and unpolarized semi-inclusive $ep$ collision respectively, using the formalism based on transverse momentum dependent parton distributions…

High Energy Physics - Phenomenology · Physics 2018-01-17 Asmita Mukherjee , Sangem Rajesh

We present a calculation of the $cos (2 \phi_h)$ asymmetry in $J/\psi$ production in electron-proton collision at the future electron-ion collider (EIC), a useful channel to probe the gluon TMDs. We calculate the asymmetry at…

High Energy Physics - Phenomenology · Physics 2021-11-24 Raj Kishore , Asmita Mukherjee , Mariyah Siddiqah

We investigate the feasibility of exploring the gluon transverse-momentum-dependent distribution functions (TMDs) inside a longitudinally polarized nucleon. We utilize quarkonium production via the color-octet mechanism combined with TMD…

High Energy Physics - Phenomenology · Physics 2023-10-03 Huachao liu , Xiupeng xie , Zhun Lu

We study the azimuthal asymmetries in back-to-back leptoproduction of $D$-meson and jet to probe the gluon TMDs in an unpolarized and transversely polarized electron-proton collision at the kinematics of EIC. We give predictions for…

High Energy Physics - Phenomenology · Physics 2023-08-16 Khatiza Banu , Asmita Mukherjee , Amol Pawar , Sangem Rajesh

In this paper we analyze azimuthal asymmetries in the processes of unpolarized and polarized $J/\psi \,(\Upsilon)$ production at an Electron-Ion Collider. Apart from giving access to various unknown gluon transverse momentum distributions,…

High Energy Physics - Phenomenology · Physics 2019-09-26 Alessandro Bacchetta , Daniël Boer , Cristian Pisano , Pieter Taels

Asymmetries in heavy quark pair and dijet production in electron-proton collisions allow studies of gluon TMDs in close analogy to studies of quark TMDs in semi-inclusive DIS. Here we present expressions for azimuthal asymmetries for both…

High Energy Physics - Phenomenology · Physics 2016-08-24 Daniël Boer , Piet J. Mulders , Cristian Pisano , Jian Zhou

We consider transverse momentum dependent gluon distributions inside both unpolarized and transversely polarized protons and show how they can be probed by looking at azimuthal modulations in $e \, p \to e \, J/\psi \, \mathrm{jet} \, X$.…

High Energy Physics - Phenomenology · Physics 2019-12-10 Umberto D'Alesio , Francesco Murgia , Cristian Pisano , Pieter Taels

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…

High Energy Physics - Phenomenology · Physics 2020-01-01 Cristian Pisano

J/psi-pair production at the LHC is currently one of the few tools available to probe gluon transverse momentum distributions (TMDs). In this context, data from LHCb in the collider mode have the potential to probe the evolution of the…

High Energy Physics - Phenomenology · Physics 2024-03-04 Alice Colpani Serri , Jelle Bor , Daniel Boer , Jean-Philippe Lansberg

The transverse-momentum-dependent (TMD) factorization theorem for dijet production in deep-inelastic scattering is used here to make predictions of the gluon Sivers function. We revise the previously studied unpolarized case and develop the…

High Energy Physics - Phenomenology · Physics 2026-03-03 Miguel G. Echevarria , Patricia Andrea Gutierrez García , Ignazio Scimemi

We calculate the $cos~2 \phi$ asymmetry in $J/\psi$ production in electron-proton collision for the kinematics of the planned electron-ion collider (EIC). This directly probes the Weisz\"acker-Williams (WW) type linearly polarized gluon…

High Energy Physics - Phenomenology · Physics 2019-03-27 Raj Kishore , Asmita Mukherjee

We study the Sivers azimuthal asymmetry for $J/\psi$ production in semi-inclusive deep inelastic scattering, and the still poorly known gluon Sivers function. We concentrate on the $J/\psi$ low transverse momentum region, employing the…

High Energy Physics - Phenomenology · Physics 2023-01-18 U. D'Alesio , A. Mukherjee , F. Murgia , C. Pisano , S. Rajesh

Gluon TMDs can be accessed through the analysis of azimuthal asymmetries for heavy quark pair and dijet production in electron-proton collisions, similarly to the way quark TMDs are commonly extracted from semi-inclusive deep-inelastic…

High Energy Physics - Phenomenology · Physics 2016-12-21 Cristian Pisano , Daniël Boer , Piet J. Mulders , Jian Zhou

The impact of the inclusion of TMD shape functions on the transverse momentum spectrum in $J/\psi$ production at the EIC is investigated by considering the matching of the TMD factorization description at low transverse momentum with the…

High Energy Physics - Phenomenology · Physics 2025-05-15 Luca Maxia , Daniël Boer , Jelle Bor

In this article, we investigate the $\cos2\phi_t$ azimuthal asymmetry in $e ~p\rightarrow e ~J/\psi ~Jet~ X$, where the $J/\psi$-jet pair is almost back-to-back in the transverse plane, within the framework of the generalized parton…

High Energy Physics - Phenomenology · Physics 2022-08-31 Raj Kishore , Asmita Mukherjee , Amol Pawar , Mariyah Siddiqah

We discuss the measurement of gluon transverse momentum distribution (TMD) in dijet and heavy hadron pair (HHP) production in semi-inclusive deep inelastic scattering. The factorization of these processes in impact parameter space shows the…

High Energy Physics - Phenomenology · Physics 2022-03-14 Rafael F. del Castillo , Miguel G. Echevarria , Yiannis Makris , Ignazio Scimemi
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