Bali, Gunnar S. and Castagnini, Luca and Diehl, Markus and Gaunt, Jonathan R. and Glaessle, Benjamin and Schaefer, Andreas and Zimmermann, Christian (2021) Double parton distributions in the pion from lattice QCD. JOURNAL OF HIGH ENERGY PHYSICS, 2021 (2): 067. ISSN 1029-8479
Full text not available from this repository. (Request a copy)Abstract
We perform a lattice study of double parton distributions in the pion, using the relationship between their Mellin moments and pion matrix elements of two local currents. A good statistical signal is obtained for almost all relevant Wick contractions. We investigate correlations in the spatial distribution of two partons in the pion, as well as correlations involving the parton polarisation. The patterns we observe depend significantly on the quark mass. We investigate the assumption that double parton distributions approximately factorise into a convolution of single parton distributions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Lattice field theory simulation; QCD Phenomenology |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Aug 2022 05:48 |
| Last Modified: | 26 Aug 2022 05:48 |
| URI: | https://pred.uni-regensburg.de/id/eprint/47019 |
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