Revisiting universal extra-dimension model with gravity mediated decays
Abstract We explore the collider phenomenology of the fat-brane realization of the Minimal Universal Extra Dimension (mUED) model, where Standard Model (SM) fields propagate in a small extra dimension while gravity accesses additional large extra dimensions. This configuration allows for gravity-med...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-04-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP04(2025)063 |
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| author | Kirtiman Ghosh Katri Huitu Rameswar Sahu |
| author_facet | Kirtiman Ghosh Katri Huitu Rameswar Sahu |
| author_sort | Kirtiman Ghosh |
| collection | DOAJ |
| description | Abstract We explore the collider phenomenology of the fat-brane realization of the Minimal Universal Extra Dimension (mUED) model, where Standard Model (SM) fields propagate in a small extra dimension while gravity accesses additional large extra dimensions. This configuration allows for gravity-mediated decay (GMD) of Kaluza-Klein (KK) particles, resulting in unique final states with hard photons, jets, massive SM bosons, and large missing transverse energy due to invisible KK gravitons. We derive updated constraints on the model’s parameter space by recasting ATLAS mono-photon, di-photon, and multi-jet search results using 139 inverse femtobern of integrated luminosity data. Recognizing that current LHC search strategies are tailored for supersymmetric scenarios and may not fully capture the distinct signatures, we propose optimized strategies using machine learning algorithms to tag boosted SM bosons and enhance signal discrimination against SM backgrounds. These methods improve sensitivity to fat-brane mUED signatures and offer promising prospects for probing this model in future LHC runs. |
| format | Article |
| id | doaj-art-b4beb68f383349bc9ab5f3df340f52b3 |
| institution | DOAJ |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-b4beb68f383349bc9ab5f3df340f52b32025-08-20T03:09:34ZengSpringerOpenJournal of High Energy Physics1029-84792025-04-012025414510.1007/JHEP04(2025)063Revisiting universal extra-dimension model with gravity mediated decaysKirtiman Ghosh0Katri Huitu1Rameswar Sahu2Institute of Physics, Bhubaneswar, Sachivalaya Marg, Sainik School PostDepartment of Physics, and Helsinki Institute of Physics, University of HelsinkiInstitute of Physics, Bhubaneswar, Sachivalaya Marg, Sainik School PostAbstract We explore the collider phenomenology of the fat-brane realization of the Minimal Universal Extra Dimension (mUED) model, where Standard Model (SM) fields propagate in a small extra dimension while gravity accesses additional large extra dimensions. This configuration allows for gravity-mediated decay (GMD) of Kaluza-Klein (KK) particles, resulting in unique final states with hard photons, jets, massive SM bosons, and large missing transverse energy due to invisible KK gravitons. We derive updated constraints on the model’s parameter space by recasting ATLAS mono-photon, di-photon, and multi-jet search results using 139 inverse femtobern of integrated luminosity data. Recognizing that current LHC search strategies are tailored for supersymmetric scenarios and may not fully capture the distinct signatures, we propose optimized strategies using machine learning algorithms to tag boosted SM bosons and enhance signal discrimination against SM backgrounds. These methods improve sensitivity to fat-brane mUED signatures and offer promising prospects for probing this model in future LHC runs.https://doi.org/10.1007/JHEP04(2025)063Extra DimensionsSpecific BSM Phenomenology |
| spellingShingle | Kirtiman Ghosh Katri Huitu Rameswar Sahu Revisiting universal extra-dimension model with gravity mediated decays Journal of High Energy Physics Extra Dimensions Specific BSM Phenomenology |
| title | Revisiting universal extra-dimension model with gravity mediated decays |
| title_full | Revisiting universal extra-dimension model with gravity mediated decays |
| title_fullStr | Revisiting universal extra-dimension model with gravity mediated decays |
| title_full_unstemmed | Revisiting universal extra-dimension model with gravity mediated decays |
| title_short | Revisiting universal extra-dimension model with gravity mediated decays |
| title_sort | revisiting universal extra dimension model with gravity mediated decays |
| topic | Extra Dimensions Specific BSM Phenomenology |
| url | https://doi.org/10.1007/JHEP04(2025)063 |
| work_keys_str_mv | AT kirtimanghosh revisitinguniversalextradimensionmodelwithgravitymediateddecays AT katrihuitu revisitinguniversalextradimensionmodelwithgravitymediateddecays AT rameswarsahu revisitinguniversalextradimensionmodelwithgravitymediateddecays |