dorsal/arxiv
View SchemaNear-threshold heavy quarkonium photoproduction in a light-front spectator model
| Authors | Amrita Sain, Bheemsehan Gurjar, Chandan Mondal |
|---|---|
| Categories | |
| ArXiv ID | 2601.05840vv1 |
| URL | https://arxiv.org/abs/2601.05840 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
The near-threshold photo- and electroproduction of heavy vector quarkonia off the proton provides direct access to its gluonic structure. In particular, the cross section for $J/\Psi$ photoproduction near threshold is governed by the proton's gluon gravitational form factors (GFFs). In this work, we employ the generalized parton distribution framework together with gluon GFFs calculated in a light-front gluon-spectator model inspired by soft-wall AdS/QCD to predict both the differential and total cross sections for near-threshold $J/\Psi$ and $\Upsilon$ photoproductions. Our results for $J/\Psi$ photoproduction show good agreement with recent experimental data from the $J/\Psi$-007 and GlueX Collaborations at Jefferson Lab, as well as with earlier measurements from SLAC and Cornell.
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"abstract": "The near-threshold photo- and electroproduction of heavy vector quarkonia off the proton provides direct access to its gluonic structure. In particular, the cross section for $J/\\Psi$ photoproduction near threshold is governed by the proton\u0027s gluon gravitational form factors (GFFs). In this work, we employ the generalized parton distribution framework together with gluon GFFs calculated in a light-front gluon-spectator model inspired by soft-wall AdS/QCD to predict both the differential and total cross sections for near-threshold $J/\\Psi$ and $\\Upsilon$ photoproductions. Our results for $J/\\Psi$ photoproduction show good agreement with recent experimental data from the $J/\\Psi$-007 and GlueX Collaborations at Jefferson Lab, as well as with earlier measurements from SLAC and Cornell.",
"arxiv_id": "2601.05840",
"authors": [
"Amrita Sain",
"Bheemsehan Gurjar",
"Chandan Mondal"
],
"categories": [
"hep-ph",
"hep-ex",
"hep-lat",
"hep-th",
"nucl-th"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Near-threshold heavy quarkonium photoproduction in a light-front spectator model",
"url": "https://arxiv.org/abs/2601.05840",
"version": "v1"
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