Twist-3 contribution to deeply virtual electroproduction of pions
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866929658685030400 |
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| author | Duplančić, Goran Kroll, Peter Passek-K., Kornelija Szymanowski, Lech |
| author_facet | Duplančić, Goran Kroll, Peter Passek-K., Kornelija Szymanowski, Lech |
| contents | The twist-3 contribution, consisting of twist-2 transversity generalized parton distributions (GPDs) and a twist-3 meson wave function, to deeply virtual pion electroproduction is discussed. The twist-3 meson wave function includes both the $q\bar{q}$ and the $q\bar{q}g$ Fock components. Two methods to regularize the end-point singularities are introduced - quark transverse momenta and a gluon mass. Using existing GPD parameterizations the transverse and the transverse-transverse interference cross sections for $π^0$ production are calculated and compared to experimental data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_13164 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Twist-3 contribution to deeply virtual electroproduction of pions Duplančić, Goran Kroll, Peter Passek-K., Kornelija Szymanowski, Lech High Energy Physics - Phenomenology High Energy Physics - Experiment The twist-3 contribution, consisting of twist-2 transversity generalized parton distributions (GPDs) and a twist-3 meson wave function, to deeply virtual pion electroproduction is discussed. The twist-3 meson wave function includes both the $q\bar{q}$ and the $q\bar{q}g$ Fock components. Two methods to regularize the end-point singularities are introduced - quark transverse momenta and a gluon mass. Using existing GPD parameterizations the transverse and the transverse-transverse interference cross sections for $π^0$ production are calculated and compared to experimental data. |
| title | Twist-3 contribution to deeply virtual electroproduction of pions |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2312.13164 |