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Double parton distributions in the pion from lattice QCD
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 distr...
| Autores principales: | , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/JHEP02(2021)067 http://cds.cern.ch/record/2722408 |
| _version_ | 1780965896631615488 |
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| author | Bali, Gunnar S. Castagnini, Luca Diehl, Markus Gaunt, Jonathan R. Gläßle, Benjamin Schäfer, Andreas Zimmermann, Christian |
| author_facet | Bali, Gunnar S. Castagnini, Luca Diehl, Markus Gaunt, Jonathan R. Gläßle, Benjamin Schäfer, Andreas Zimmermann, Christian |
| author_sort | Bali, Gunnar S. |
| collection | CERN |
| description | 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. |
| id | cern-2722408 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2020 |
| record_format | invenio |
| spelling | cern-27224082021-11-12T07:25:27Zdoi:10.1007/JHEP02(2021)067http://cds.cern.ch/record/2722408engBali, Gunnar S.Castagnini, LucaDiehl, MarkusGaunt, Jonathan R.Gläßle, BenjaminSchäfer, AndreasZimmermann, ChristianDouble parton distributions in the pion from lattice QCDhep-phParticle Physics - Phenomenologyhep-latParticle Physics - LatticeWe 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.arXiv:2006.14826DESY 20-098DESY-20-098CERN-TH-2020-086oai:cds.cern.ch:27224082020-06-26 |
| spellingShingle | hep-ph Particle Physics - Phenomenology hep-lat Particle Physics - Lattice Bali, Gunnar S. Castagnini, Luca Diehl, Markus Gaunt, Jonathan R. Gläßle, Benjamin Schäfer, Andreas Zimmermann, Christian Double parton distributions in the pion from lattice QCD |
| title | Double parton distributions in the pion from lattice QCD |
| title_full | Double parton distributions in the pion from lattice QCD |
| title_fullStr | Double parton distributions in the pion from lattice QCD |
| title_full_unstemmed | Double parton distributions in the pion from lattice QCD |
| title_short | Double parton distributions in the pion from lattice QCD |
| title_sort | double parton distributions in the pion from lattice qcd |
| topic | hep-ph Particle Physics - Phenomenology hep-lat Particle Physics - Lattice |
| url | https://dx.doi.org/10.1007/JHEP02(2021)067 http://cds.cern.ch/record/2722408 |
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