تقرير
Unraveling Gluon TMDs in $J/\psi$ and Pion production at the EIC
| العنوان: | Unraveling Gluon TMDs in $J/\psi$ and Pion production at the EIC |
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| المؤلفون: | Banu, Khatiza, Mukherjee, Asmita, Pawar, Amol, Rajesh, Sangem |
| سنة النشر: | 2024 |
| المجموعة: | High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology |
| الوصف: | 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 back-to-back configuration. The electron is unpolarized, while the proton can be unpolarized or transversely polarized. For the $J/\psi$ formation, we use non-relativistic QCD (NRQCD), while $\pi^\pm$ is formed due to parton fragmentation. In this kinematics, we utilize the transverse momentum-dependent factorization framework to calculate the cross sections and asymmetries. We consider both quark and gluon-initiated processes and show that the gluon contribution dominates. We provide numerical estimates of the upper bounds on the azimuthal asymmetries, as well as employ a Gaussian parametrization for the gluon transverse momentum distributions (TMDs), within the kinematical region accessible by the upcoming Electron-Ion Collider (EIC). Comment: 23 pages, 14 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2406.00271 |
| رقم الأكسشن: | edsarx.2406.00271 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |