Exclusive and dissociative / photoproduction, and exclusive dimuon production, in p-Pb collisions at √NN=8.16 TeV
The ALICE Collaboration reports three measurements in ultraperipheral proton-lead collisions at forward rapidity. The exclusive two-photon process →+− and the exclusive photoproduction of / are studied. / photoproduction with proton dissociation is measured for the first time at a hadron collider....
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | Brasil |
| Institución: | Universidade Federal do Rio Grande do Sul (UFRGS) |
| Repositorio: | Repositório Institucional da UFRGS |
| Idioma: | inglés |
| OAI Identifier: | oai:www.lume.ufrgs.br:10183/281393 |
| Acceso en línea: | http://hdl.handle.net/10183/281393 |
| Access Level: | acceso abierto |
| Palabra clave: | Aceleradores de partículas Colisao de ions pesados Fotoproducao de mesons |
| Sumario: | The ALICE Collaboration reports three measurements in ultraperipheral proton-lead collisions at forward rapidity. The exclusive two-photon process →+− and the exclusive photoproduction of / are studied. / photoproduction with proton dissociation is measured for the first time at a hadron collider. The cross section for the two-photon process of dimuons in the invariant mass range from 1 to 2.5 GeV/2 agrees with leading-order quantum electrodynamics calculations. The exclusive and dissociative cross sections for / photoproductions are measured for photon-proton center-of-mass energies from 27 to 57 GeV. They are in good agreement with HERA results. |
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