Wigner distributions for gluons
Abstract We investigate the gluon Wigner distributions for unpolarized, longitudinally polarized and transversely polarized target state. Instead of a nucleon, we take the target state to be a quark dressed with a gluon at one loop and investigate the gluon Wigner distributions at leading twist. Bet...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2018-05-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-018-5858-1 |
| _version_ | 1819132524830392320 |
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| author | Jai More Asmita Mukherjee Sreeraj Nair |
| author_facet | Jai More Asmita Mukherjee Sreeraj Nair |
| author_sort | Jai More |
| collection | DOAJ |
| description | Abstract We investigate the gluon Wigner distributions for unpolarized, longitudinally polarized and transversely polarized target state. Instead of a nucleon, we take the target state to be a quark dressed with a gluon at one loop and investigate the gluon Wigner distributions at leading twist. Better numerical convergence is obtained compared to an earlier study, that removes the regulator dependence of the results. We present a first calculation of the Wigner distribution for the transversely polarized target and linearly polarized gluon. We study the spin densities in momentum and impact parameter space. We also investigate the quark and gluon helicity and orbital angular momentum distributions at small-x. |
| first_indexed | 2024-12-22T09:32:46Z |
| format | Article |
| id | doaj.art-8793e937135a4162aa05fb6d1b07586a |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-22T09:32:46Z |
| publishDate | 2018-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-8793e937135a4162aa05fb6d1b07586a2022-12-21T18:30:53ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-05-0178511510.1140/epjc/s10052-018-5858-1Wigner distributions for gluonsJai More0Asmita Mukherjee1Sreeraj Nair2Department of Physics, Indian Institute of Technology BombayDepartment of Physics, Indian Institute of Technology BombayDepartment of Physics, Indian Institute of Science Education and Research BhopalAbstract We investigate the gluon Wigner distributions for unpolarized, longitudinally polarized and transversely polarized target state. Instead of a nucleon, we take the target state to be a quark dressed with a gluon at one loop and investigate the gluon Wigner distributions at leading twist. Better numerical convergence is obtained compared to an earlier study, that removes the regulator dependence of the results. We present a first calculation of the Wigner distribution for the transversely polarized target and linearly polarized gluon. We study the spin densities in momentum and impact parameter space. We also investigate the quark and gluon helicity and orbital angular momentum distributions at small-x.http://link.springer.com/article/10.1140/epjc/s10052-018-5858-1 |
| spellingShingle | Jai More Asmita Mukherjee Sreeraj Nair Wigner distributions for gluons European Physical Journal C: Particles and Fields |
| title | Wigner distributions for gluons |
| title_full | Wigner distributions for gluons |
| title_fullStr | Wigner distributions for gluons |
| title_full_unstemmed | Wigner distributions for gluons |
| title_short | Wigner distributions for gluons |
| title_sort | wigner distributions for gluons |
| url | http://link.springer.com/article/10.1140/epjc/s10052-018-5858-1 |
| work_keys_str_mv | AT jaimore wignerdistributionsforgluons AT asmitamukherjee wignerdistributionsforgluons AT sreerajnair wignerdistributionsforgluons |