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| Format: | Preprint |
| Published: |
2026
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| Online Access: | https://arxiv.org/abs/2601.20406 |
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| _version_ | 1866908815288434688 |
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| author | Elgammal, S. |
| author_facet | Elgammal, S. |
| contents | This analysis utilizes simulated data privately generated based on the High Luminosity Large Hadron Collider (HL-LHC) configuration to investigate the angular distribution of high-mass dimuon pairs produced during the foreseen proton-proton collisions at a center-of-mass energy of 14 TeV. The study focuses on the cos$θ_{CS}$ variable, which is defined in the Collins-Soper frame. In the Standard Model, the production of high-mass dimuon pairs is primarily governed by the Drell-Yan process, which demonstrates a significant forward-backward asymmetry. However, scenarios beyond the Standard Model suggest different shapes for the cos$θ_{CS}$ distribution. By observing excess events not predicted by the Standard Model, the angular distribution can help differentiate among these alternative models. Furthermore, we used a simplified Einstein-Cartan gravity model to analyze the simulated data. This analysis established upper limits at the 95\% confidence level regarding the masses of various particles within the model, including a spin-2 dark neutral gauge boson and the torsion field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_20406 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Probing torsion field with Einstein-Cartan gravity at the HL-LHC: an angular distribution case study Elgammal, S. High Energy Physics - Phenomenology This analysis utilizes simulated data privately generated based on the High Luminosity Large Hadron Collider (HL-LHC) configuration to investigate the angular distribution of high-mass dimuon pairs produced during the foreseen proton-proton collisions at a center-of-mass energy of 14 TeV. The study focuses on the cos$θ_{CS}$ variable, which is defined in the Collins-Soper frame. In the Standard Model, the production of high-mass dimuon pairs is primarily governed by the Drell-Yan process, which demonstrates a significant forward-backward asymmetry. However, scenarios beyond the Standard Model suggest different shapes for the cos$θ_{CS}$ distribution. By observing excess events not predicted by the Standard Model, the angular distribution can help differentiate among these alternative models. Furthermore, we used a simplified Einstein-Cartan gravity model to analyze the simulated data. This analysis established upper limits at the 95\% confidence level regarding the masses of various particles within the model, including a spin-2 dark neutral gauge boson and the torsion field. |
| title | Probing torsion field with Einstein-Cartan gravity at the HL-LHC: an angular distribution case study |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2601.20406 |