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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2106.11465 |
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| _version_ | 1866917481168240640 |
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| author | Huayra, Edgar de Oliveira, Emmanuel G. Pasechnik, Roman Stahlhöfer, Bruna O. |
| author_facet | Huayra, Edgar de Oliveira, Emmanuel G. Pasechnik, Roman Stahlhöfer, Bruna O. |
| contents | We discuss the associated $c\bar{c}$ and $l^+l^-$ pairs production in ultraperipheral heavy-ion collisions at high energies. Such a channel provides a novel probe for double-parton scattering (DPS) at small $x$ enabling one to probe the photon density inside the nucleus. We have derived an analog of the standard central $pp$ pocket formula and studied the kinematical dependence of the effective cross section. Taking into account both elastic and non-elastic contributions, we have shown predictions for the DPS $c\bar c l^+l^-$ production cross section differential in charm quark rapidity and dilepton invariant mass and rapidity for LHC and a future collider. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2106_11465 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | DPS mechanism for associated $c\bar{c} l^+l^-$ production in $AA$ UPCs as a probe for photon density inside the nucleus Huayra, Edgar de Oliveira, Emmanuel G. Pasechnik, Roman Stahlhöfer, Bruna O. High Energy Physics - Phenomenology We discuss the associated $c\bar{c}$ and $l^+l^-$ pairs production in ultraperipheral heavy-ion collisions at high energies. Such a channel provides a novel probe for double-parton scattering (DPS) at small $x$ enabling one to probe the photon density inside the nucleus. We have derived an analog of the standard central $pp$ pocket formula and studied the kinematical dependence of the effective cross section. Taking into account both elastic and non-elastic contributions, we have shown predictions for the DPS $c\bar c l^+l^-$ production cross section differential in charm quark rapidity and dilepton invariant mass and rapidity for LHC and a future collider. |
| title | DPS mechanism for associated $c\bar{c} l^+l^-$ production in $AA$ UPCs as a probe for photon density inside the nucleus |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2106.11465 |