Vector Portals at Future Lepton Colliders
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866909425713807360 |
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| author | Airen, Sagar Broadberry, Edward Marques-Tavares, Gustavo Ricci, Lorenzo |
| author_facet | Airen, Sagar Broadberry, Edward Marques-Tavares, Gustavo Ricci, Lorenzo |
| contents | We assess the sensitivity of future lepton colliders to weakly coupled vector dark portals (aka ``$ Z' $ bosons'') with masses ranging from tens of GeV to a few TeV. Our analysis focuses on dark photons and $ L_μ - L_τ $ gauge bosons. We consider both visible and invisible decay channels. We demonstrate that both high energy $μ$ colliders and future $ e^+e^- $ colliders, using the FCC-ee $Z$-pole and $ZH$ operation modes as a benchmark, offer significant improvements in sensitivity. We find that both colliders can enhance the sensitivity to $ L_μ - L_τ $ bosons (for both visible and invisible decays) and to invisibly decaying dark photons by 1--2 orders of magnitude across the relevant mass range. Furthermore, we study the impact of forward $ μ$ detectors at the $ μ$-collider on the sensitivity to both models. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_09681 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Vector Portals at Future Lepton Colliders Airen, Sagar Broadberry, Edward Marques-Tavares, Gustavo Ricci, Lorenzo High Energy Physics - Phenomenology We assess the sensitivity of future lepton colliders to weakly coupled vector dark portals (aka ``$ Z' $ bosons'') with masses ranging from tens of GeV to a few TeV. Our analysis focuses on dark photons and $ L_μ - L_τ $ gauge bosons. We consider both visible and invisible decay channels. We demonstrate that both high energy $μ$ colliders and future $ e^+e^- $ colliders, using the FCC-ee $Z$-pole and $ZH$ operation modes as a benchmark, offer significant improvements in sensitivity. We find that both colliders can enhance the sensitivity to $ L_μ - L_τ $ bosons (for both visible and invisible decays) and to invisibly decaying dark photons by 1--2 orders of magnitude across the relevant mass range. Furthermore, we study the impact of forward $ μ$ detectors at the $ μ$-collider on the sensitivity to both models. |
| title | Vector Portals at Future Lepton Colliders |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2412.09681 |