Polarized TMD fragmentation functions for $J/ψ$ production
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866911795273269248 |
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| author | Copeland, Marston Fleming, Sean Gupta, Rohit Hodges, Reed Mehen, Thomas |
| author_facet | Copeland, Marston Fleming, Sean Gupta, Rohit Hodges, Reed Mehen, Thomas |
| contents | We calculate the matching, at leading order, of the transverse momentum-dependent fragmentation functions (TMDFFs) for light quarks and gluons fragmenting to a $J/ψ$ onto polarized nonrelativistic QCD (NRQCD) TMDFFs. The NRQCD TMDFFs have an operator-product-expansion in terms of nonperturbative NRQCD production matrix elements. Using the results we obtain, we make predictions for the light quark fragmentation contribution to the production of polarized $J/ψ$ in semi-inclusive deep inelastic scattering (SIDIS) both for unpolarized and longitudinally polarized beams. These results are an important contribution to polarized $J/ψ$ production in SIDIS, and thus are needed for comparison with experiments at the future Electron-Ion Collider. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_08605 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Polarized TMD fragmentation functions for $J/ψ$ production Copeland, Marston Fleming, Sean Gupta, Rohit Hodges, Reed Mehen, Thomas High Energy Physics - Phenomenology We calculate the matching, at leading order, of the transverse momentum-dependent fragmentation functions (TMDFFs) for light quarks and gluons fragmenting to a $J/ψ$ onto polarized nonrelativistic QCD (NRQCD) TMDFFs. The NRQCD TMDFFs have an operator-product-expansion in terms of nonperturbative NRQCD production matrix elements. Using the results we obtain, we make predictions for the light quark fragmentation contribution to the production of polarized $J/ψ$ in semi-inclusive deep inelastic scattering (SIDIS) both for unpolarized and longitudinally polarized beams. These results are an important contribution to polarized $J/ψ$ production in SIDIS, and thus are needed for comparison with experiments at the future Electron-Ion Collider. |
| title | Polarized TMD fragmentation functions for $J/ψ$ production |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2308.08605 |