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We extend our analysis of transverse single spin asymmetry (SSA) in electroproduction of $J/\psi$ to include the effect of the scale evolution of the transverse momentum dependent (TMD) parton distribution functions and gluon Sivers…

High Energy Physics - Phenomenology · Physics 2013-07-30 Rohini M. Godbole , Anuradha Misra , Asmita Mukherjee , Vaibhav S. Rawoot

We present estimates of Single Spin Asymmetry (SSA) in the electroproduction of $J/\psi$ taking into account the transverse momentum dependent (TMD) evolution of the gluon Sivers function and using Color Evaporation Model of charmonium…

High Energy Physics - Phenomenology · Physics 2015-06-23 Rohini M. Godbole , Abhiram Kaushik , Anuradha Misra , Vaibhav S. Rawoot

We present estimates of transverse single spin asymmetry (TSSA) in $p+p^\uparrow \rightarrow J/\psi+X$ within the colour evaporation model of charmonium production in a generalized parton model (GPM) framework, using the recently obtained…

High Energy Physics - Phenomenology · Physics 2017-12-27 Rohini M. Godbole , Abhiram Kaushik , Anuradha Misra , Vaibhav Rawoot , Bipin Sonawane

We present estimates of Single Spin Asymmetry(SSA) in the electroproduction of J/{\psi} taking into account the transverse momentum dependent(TMD) evolution of the Sivers function. We estimate SSA for JLab, HERMES, COMPASS and eRHIC…

High Energy Physics - Phenomenology · Physics 2015-01-14 Rohini M. Godbole , Abhiram Kaushik , Anuradha Misra , Vaibhav S. Rawoot

We propose measurement of transverse single spin asymmetry (SSA) in charmonium production as a probe of gluon Sivers function. We estimate SSA in low virtuality electroproduction of $J/\psi $ using color evaporation model of charmonium…

High Energy Physics - Phenomenology · Physics 2012-10-04 Rohini M. Godbole , Anuradha Misra , Asmita Mukherjee , Vaibhav S. Rawoot

We estimate transverse single spin asymmetry (TSSA) in electroproduction of $J/\psi$ for J-Lab and EIC energies. We present estimates of TSSAs in $J/\psi$ production within generalized parton model (GPM) using recent parametrizations of…

High Energy Physics - Phenomenology · Physics 2018-04-18 Bipin Sonawane , Anuradha Misra , Siddhesh Padval , Vaibhav Rawoot

We discuss the possibility of using electroproduction of $J/\psi $ as a probe of gluon Sivers function by measuring single spin asymmetry (SSA) in experiments with transversely polarized protons and electron beams. We estimate SSA for JLab,…

High Energy Physics - Phenomenology · Physics 2015-03-19 Rohini M. Godbole , Anuradha Misra , Asmita Mukherjee , Vaibhav S. Rawoot

We present expected values of the Single Spin Asymmetry (SSA) in $D$-meson production in the process $p+p^\uparrow \rightarrow D^0 + X $ at RHIC energy $(\sqrt{s}=200\text{ GeV})$ using a generalized parton model approach. We use fits to…

High Energy Physics - Phenomenology · Physics 2016-12-28 Rohini M. Godbole , Abhiram Kaushik , Anuradha Misra

We estimate Sivers asymmetry in low virtuality photoproduction of $J/\psi$ using color evaporation model and taking into account $Q^2$- evolution of transverse momentum dependent PDF's and Sivers function. There is a substantial reduction…

High Energy Physics - Phenomenology · Physics 2015-06-23 Rohini M. Godbole , Abhiram Kaushik , Anuradha Misra , Vaibhav S. Rawoot

In the present study we are interested in the Sivers effect in process $p^{\uparrow}p\to DX$. We calculate the transverse single-spin asymmetry (TSSA) of $D$-meson production within two phenomenological models, namely the Generalized Parton…

High Energy Physics - Phenomenology · Physics 2023-07-12 Anton Karpishkov , Vladimir Saleev

The Sivers transverse single spin asymmetry (TSSA) is calculated and compared at different scales using the TMD evolution equations applied to previously existing extractions. We apply the Collins-Soper-Sterman (CSS) formalism, using the…

High Energy Physics - Phenomenology · Physics 2013-05-30 S. Mert Aybat , Alexei Prokudin , Ted C. Rogers

We report on a recent investigation of the single spin asymmetry (SSA) in low virtuality electroproduction of $J/\psi$ in color evaporation model. We show that this can be used as a probe for the still unknown gluon Sivers function.

High Energy Physics - Phenomenology · Physics 2012-06-26 R. Godbole , A. Misra , A. Mukherjee , V. Rawoot

A recent investigation of the single spin asymmetry (SSA) in low virtuality electroproduction/photoproduction of $J/\psi$ in color evaporation model is presented. It is shown that the asymmetry is sizable and can be used as a probe for the…

High Energy Physics - Phenomenology · Physics 2015-06-11 Asmita Mukherjee

We study the transverse single spin asymmetry (SSA), A_N, for the single inclusive process l p (transv. polarized) --> h + X, in a perturbative QCD factorization scheme with inclusion of spin and transverse momentum dependent (TMD)…

High Energy Physics - Phenomenology · Physics 2009-07-23 M. Anselmino , M. Boglione , U. D'Alesio , S. Melis , F. Murgia , A. Prokudin

We calculate the transverse single-spin asymmetry (SSA) for $J/\psi$ production in proton-proton collisions, within non-relativistic QCD, employing the transverse momentum dependent, generalized parton model, which includes both spin and…

High Energy Physics - Phenomenology · Physics 2019-10-23 Umberto D'Alesio , Francesco Murgia , Cristian Pisano , Sangem Rajesh

We study transverse single spin asymmetries (TSSAs) in back-to-back photon plus jet production in the scattering of unpolarized beams of protons off a transversely polarized proton target as probes of Gluon Sivers Function (GSF). We provide…

High Energy Physics - Phenomenology · Physics 2025-03-17 Deepesh Bhamre , Aman Gupta , Anuradha Misra , Siddhesh Padval

We study the transverse single-spin asymmetry (TSSA) in $p^{\uparrow}p \to J/\psi X$ reaction, incorporating both transverse-momentum and spin effects. To predict production cross section of prompt $J/\psi$ we use two different approaches,…

High Energy Physics - Phenomenology · Physics 2021-07-14 Anton Karpishkov , Maxim Nefedov , Vladimir Saleev

Transverse single-spin asymmetries (SSA) in inclusive reactions are now considered to be directly related to the transverse momentum ${\bf k}_{T}$ of the fundamental partons involved in the process. We find that the ideal probe to extract…

High Energy Physics - Phenomenology · Physics 2009-11-11 Ivan Schmidt , Jacques Soffer , Jian-Jun Yang

We investigate the emergence of single spin asymmetries (SSA) in hard processes using transverse momentum dependent (TMD) distribution and fragmentation functions. Specifically, the description of SSA involves time reversal-odd functions.…

High Energy Physics - Phenomenology · Physics 2008-06-30 P. J. Mulders

In this paper we propose to investigate the transverse single spin asymmetry in the inelastic $J/\Psi$ photoproduction in $p^\uparrow p$ and $p^\uparrow A$ collisions at RHIC energies. At leading order this process probes the gluon Sivers…

High Energy Physics - Phenomenology · Physics 2018-01-17 V. P. Goncalves
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