Coulomb-Nuclear Interference in polarized pA scattering
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866910311805616128 |
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| author | Kopeliovich, B. Z. Krelina, M. Potashnikova, I. K. |
| author_facet | Kopeliovich, B. Z. Krelina, M. Potashnikova, I. K. |
| contents | We made the first attempt to understand the observed unusual t dependence of single-spin asymmetry observed in the HJET experiment at RHIC. Usually, the interaction of hadrons is presented as a long-range Coulomb interaction and a short-range strong interaction with Coulomb corrections. Such a division gives rise to a Coulomb phase of the hadronic term. Conversely, here we consider short-range hadronic interaction as a correction to the long-range electromagnetic term, i.e., we treat it as an absorptive correction. This significantly affects the Coulomb-nuclear interference, which is a source of single-spin azimuthal asymmetry at small angles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_03702 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Coulomb-Nuclear Interference in polarized pA scattering Kopeliovich, B. Z. Krelina, M. Potashnikova, I. K. High Energy Physics - Phenomenology We made the first attempt to understand the observed unusual t dependence of single-spin asymmetry observed in the HJET experiment at RHIC. Usually, the interaction of hadrons is presented as a long-range Coulomb interaction and a short-range strong interaction with Coulomb corrections. Such a division gives rise to a Coulomb phase of the hadronic term. Conversely, here we consider short-range hadronic interaction as a correction to the long-range electromagnetic term, i.e., we treat it as an absorptive correction. This significantly affects the Coulomb-nuclear interference, which is a source of single-spin azimuthal asymmetry at small angles. |
| title | Coulomb-Nuclear Interference in polarized pA scattering |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2312.03702 |