Precision phenomenology at multi-TeV muon colliders
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866916930595586048 |
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| author | Frixione, Stefano Maltoni, Fabio Pagani, Davide Zaro, Marco |
| author_facet | Frixione, Stefano Maltoni, Fabio Pagani, Davide Zaro, Marco |
| contents | Future lepton colliders, such as those based on linear $e^+e^-$ or circular $μ^+μ^-$ accelerators, are expected to attain centre-of-mass energies in the multi-TeV range. In this regime the impact of QED and of weak radiation, in both the initial and the final state, can become a leading effect. By employing a general framework presented in a companion paper - suitable for any flavour of colliding leptons - we improve next-to-leading order electroweak predictions by including higher-order contributions, which encompass, but are not limited to, vector-boson-fusion processes. We apply this approach to the study of $t\bar{t}$ and $W^+W^-$ production at a muon collider operating at centre-of-mass energies up to 10 TeV. We show that such an approach, where both QED and weak contributions are included at fixed order, in addition to the all-order resummation of initial-state QED effects, can provide predictions for arbitrary observables in all of the phase space which are precise at the percent level. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2506_10733 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Precision phenomenology at multi-TeV muon colliders Frixione, Stefano Maltoni, Fabio Pagani, Davide Zaro, Marco High Energy Physics - Phenomenology Future lepton colliders, such as those based on linear $e^+e^-$ or circular $μ^+μ^-$ accelerators, are expected to attain centre-of-mass energies in the multi-TeV range. In this regime the impact of QED and of weak radiation, in both the initial and the final state, can become a leading effect. By employing a general framework presented in a companion paper - suitable for any flavour of colliding leptons - we improve next-to-leading order electroweak predictions by including higher-order contributions, which encompass, but are not limited to, vector-boson-fusion processes. We apply this approach to the study of $t\bar{t}$ and $W^+W^-$ production at a muon collider operating at centre-of-mass energies up to 10 TeV. We show that such an approach, where both QED and weak contributions are included at fixed order, in addition to the all-order resummation of initial-state QED effects, can provide predictions for arbitrary observables in all of the phase space which are precise at the percent level. |
| title | Precision phenomenology at multi-TeV muon colliders |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2506.10733 |