Timelike Compton scattering in ultraperipheral pPb collisions
The study of exclusive processes in photon-induced interactions allows us to probe the generalized parton distributions (GPDs), which provide information about the 3-dimensional description of the quark and gluon content of hadrons. In this paper we investigate the timelike Compton scattering (TCS)...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-04-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269323000965 |
| _version_ | 1797867661678346240 |
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| author | Ya-Ping Xie V.P. Gonçalves |
| author_facet | Ya-Ping Xie V.P. Gonçalves |
| author_sort | Ya-Ping Xie |
| collection | DOAJ |
| description | The study of exclusive processes in photon-induced interactions allows us to probe the generalized parton distributions (GPDs), which provide information about the 3-dimensional description of the quark and gluon content of hadrons. In this paper we investigate the timelike Compton scattering (TCS) in ultraperipheral pPb collisions at the LHC. Such process is characterized by the exclusive dilepton production through the subprocess γp→γ⁎p→l+l−p, with the real photon in the initial state being emitted by the nucleus. Assuming a given model for the GPDs, the TCS differential cross section is estimated as well the contribution associated to the interference between the TCS and Bethe–Heitler (BH) amplitudes. Predictions for the TCS, BH and interference contributions are presented considering the kinematical range covered by the LHC detectors. |
| first_indexed | 2024-04-09T23:44:50Z |
| format | Article |
| id | doaj.art-607e5cb05d874b668092d119a32aa6ae |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-09T23:44:50Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-607e5cb05d874b668092d119a32aa6ae2023-03-18T04:39:56ZengElsevierPhysics Letters B0370-26932023-04-01839137762Timelike Compton scattering in ultraperipheral pPb collisionsYa-Ping Xie0V.P. Gonçalves1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding author.Institut für Theoretische Physik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, D-48149 Münster, Germany; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Institute of Physics and Mathematics, Federal University of Pelotas, Postal Code 354, 96010-900, Pelotas, RS, BrazilThe study of exclusive processes in photon-induced interactions allows us to probe the generalized parton distributions (GPDs), which provide information about the 3-dimensional description of the quark and gluon content of hadrons. In this paper we investigate the timelike Compton scattering (TCS) in ultraperipheral pPb collisions at the LHC. Such process is characterized by the exclusive dilepton production through the subprocess γp→γ⁎p→l+l−p, with the real photon in the initial state being emitted by the nucleus. Assuming a given model for the GPDs, the TCS differential cross section is estimated as well the contribution associated to the interference between the TCS and Bethe–Heitler (BH) amplitudes. Predictions for the TCS, BH and interference contributions are presented considering the kinematical range covered by the LHC detectors.http://www.sciencedirect.com/science/article/pii/S0370269323000965 |
| spellingShingle | Ya-Ping Xie V.P. Gonçalves Timelike Compton scattering in ultraperipheral pPb collisions Physics Letters B |
| title | Timelike Compton scattering in ultraperipheral pPb collisions |
| title_full | Timelike Compton scattering in ultraperipheral pPb collisions |
| title_fullStr | Timelike Compton scattering in ultraperipheral pPb collisions |
| title_full_unstemmed | Timelike Compton scattering in ultraperipheral pPb collisions |
| title_short | Timelike Compton scattering in ultraperipheral pPb collisions |
| title_sort | timelike compton scattering in ultraperipheral ppb collisions |
| url | http://www.sciencedirect.com/science/article/pii/S0370269323000965 |
| work_keys_str_mv | AT yapingxie timelikecomptonscatteringinultraperipheralppbcollisions AT vpgoncalves timelikecomptonscatteringinultraperipheralppbcollisions |