Probing the existence of a new charged vector boson decaying into heavy neutral leptons using ultra-peripheral heavy ion collisions at ATLAS
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| Format: | Preprint |
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2025
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| _version_ | 1866912684900876288 |
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| author | Oviedo-Torres, Y. M. Tapia, Sebastian Zamora-Saa, J. |
| author_facet | Oviedo-Torres, Y. M. Tapia, Sebastian Zamora-Saa, J. |
| contents | In this paper we explore the potential of Ultra-peripheral Collisions in the LHC to investigate new physics, focusing specifically on the production of new charged vector bosons ${V}^{\pm}$ that decay into heavy neutral leptons $N_{L}$ in the context of the Vector Scotogenic Model. We show that the ATLAS experiment searching for dilepton+met final states through UPCs of lead ions, can prove the existence of new charged vector bosons in the mass range 5-100 GeV, a region not explored by the LEP-II experiment. Our analysis identifies regions in the parameter space where the signal can be distinguished from the background with high statistical significance. Within the mass range 5 GeV $<M_{V^{\pm}}, M_{N_L}<$ 100 GeV, ATLAS can exclude scenarios with 95\% of C.L. for specific mass scenarios such as (30 GeV, 20 GeV), (30 GeV, 10 GeV) and (20 GeV, 10 GeV). In a discovery context, ATLAS could reach a significance of 5$σ$ only for (20 GeV, 10 GeV). Furthermore, we show that in the absence of new physics signals at ATLAS, the High Luminosity LHC with UPCs of protons could explore further into larger mass ranges, specifically 100 GeV $< M_{V^{\pm}}<$ 200 GeV and 5 GeV $<M_{N_L}<$ 200 GeV. We find that the HL-LHC can exclude this mass range with 95\% of C.L., and most scenarios can achieve a discovery significance of 5$σ$ |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2510_24499 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Probing the existence of a new charged vector boson decaying into heavy neutral leptons using ultra-peripheral heavy ion collisions at ATLAS Oviedo-Torres, Y. M. Tapia, Sebastian Zamora-Saa, J. High Energy Physics - Phenomenology In this paper we explore the potential of Ultra-peripheral Collisions in the LHC to investigate new physics, focusing specifically on the production of new charged vector bosons ${V}^{\pm}$ that decay into heavy neutral leptons $N_{L}$ in the context of the Vector Scotogenic Model. We show that the ATLAS experiment searching for dilepton+met final states through UPCs of lead ions, can prove the existence of new charged vector bosons in the mass range 5-100 GeV, a region not explored by the LEP-II experiment. Our analysis identifies regions in the parameter space where the signal can be distinguished from the background with high statistical significance. Within the mass range 5 GeV $<M_{V^{\pm}}, M_{N_L}<$ 100 GeV, ATLAS can exclude scenarios with 95\% of C.L. for specific mass scenarios such as (30 GeV, 20 GeV), (30 GeV, 10 GeV) and (20 GeV, 10 GeV). In a discovery context, ATLAS could reach a significance of 5$σ$ only for (20 GeV, 10 GeV). Furthermore, we show that in the absence of new physics signals at ATLAS, the High Luminosity LHC with UPCs of protons could explore further into larger mass ranges, specifically 100 GeV $< M_{V^{\pm}}<$ 200 GeV and 5 GeV $<M_{N_L}<$ 200 GeV. We find that the HL-LHC can exclude this mass range with 95\% of C.L., and most scenarios can achieve a discovery significance of 5$σ$ |
| title | Probing the existence of a new charged vector boson decaying into heavy neutral leptons using ultra-peripheral heavy ion collisions at ATLAS |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2510.24499 |