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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2502.01038 |
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| _version_ | 1866912217033605120 |
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| author | Ramos, G. S. |
| author_facet | Ramos, G. S. |
| contents | This work analyzes different notions of entropy and its production in $ep$ and heavy-ion collisions, focusing on the early stages of the collision. To this end, the importance of phenomena such as quantum entanglement and decoherence in entropy generation was studied. Using state-of-the-art methods for calculating entanglement entropy in the high-energy limit and synthesizing various approaches for its computation, phenomenological results were obtained from analytical expressions for the number of gluons. Results were also presented for the entanglement entropy in two-body elastic scattering based on the hadronic structure given by the model-independent Lévy method, at energy values typical of the RHIC, Tevatron, and LHC. Phenomenological models of unintegrated gluon distributions were used to calculate dynamic entropy in the QCD of dense gluonic states in $pp$ and $pA$ collisions at high energies, comparing it with decoherence entropy. The obtained results were contrasted with other notions of entropy in the literature, and theoretical uncertainties were discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_01038 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Investigating Notions of Entropy and Its Production in High Energy Particle Collisions Ramos, G. S. High Energy Physics - Phenomenology This work analyzes different notions of entropy and its production in $ep$ and heavy-ion collisions, focusing on the early stages of the collision. To this end, the importance of phenomena such as quantum entanglement and decoherence in entropy generation was studied. Using state-of-the-art methods for calculating entanglement entropy in the high-energy limit and synthesizing various approaches for its computation, phenomenological results were obtained from analytical expressions for the number of gluons. Results were also presented for the entanglement entropy in two-body elastic scattering based on the hadronic structure given by the model-independent Lévy method, at energy values typical of the RHIC, Tevatron, and LHC. Phenomenological models of unintegrated gluon distributions were used to calculate dynamic entropy in the QCD of dense gluonic states in $pp$ and $pA$ collisions at high energies, comparing it with decoherence entropy. The obtained results were contrasted with other notions of entropy in the literature, and theoretical uncertainties were discussed. |
| title | Investigating Notions of Entropy and Its Production in High Energy Particle Collisions |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2502.01038 |