Lepton flavor physics at $μ^+ μ^+$ colliders
Fuente:
arXiv
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916683971559424 |
|---|---|
| author | Fridell, Kåre Kitano, Ryuichiro Takai, Ryoto |
| author_facet | Fridell, Kåre Kitano, Ryuichiro Takai, Ryoto |
| contents | We discuss sensitivities to lepton flavor violating (and conserving) interactions at future muon colliders, especially at $μ^+μ^+$ colliders. Compared with the searches for rare decays of $μ$ and $τ$, we find that the TeV-scale future colliders have better sensitivities depending on the pattern of hierarchy in the flavor mixings. As an example, we study the case with the type-II seesaw model, where the flavor mixing parameters have direct relation to the neutrino mass matrix. At a $μ^+ μ^+$ collider, the number of events of the $μ^+ μ^+ \to μ^+ τ^+$ process can be larger than $\mathcal{O}(100)$ with the center of mass energy $\sqrt s = 2$ TeV, and with an integrated luminosity ${\cal L} = 1$ ab$^{-1}$, while satisfying bounds from rare decays of $μ$ and $τ$. We discuss impacts of the overall mass scale of neutrinos as well as CP violating phases to the number of expected events. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_14020 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Lepton flavor physics at $μ^+ μ^+$ colliders Fridell, Kåre Kitano, Ryuichiro Takai, Ryoto High Energy Physics - Phenomenology We discuss sensitivities to lepton flavor violating (and conserving) interactions at future muon colliders, especially at $μ^+μ^+$ colliders. Compared with the searches for rare decays of $μ$ and $τ$, we find that the TeV-scale future colliders have better sensitivities depending on the pattern of hierarchy in the flavor mixings. As an example, we study the case with the type-II seesaw model, where the flavor mixing parameters have direct relation to the neutrino mass matrix. At a $μ^+ μ^+$ collider, the number of events of the $μ^+ μ^+ \to μ^+ τ^+$ process can be larger than $\mathcal{O}(100)$ with the center of mass energy $\sqrt s = 2$ TeV, and with an integrated luminosity ${\cal L} = 1$ ab$^{-1}$, while satisfying bounds from rare decays of $μ$ and $τ$. We discuss impacts of the overall mass scale of neutrinos as well as CP violating phases to the number of expected events. |
| title | Lepton flavor physics at $μ^+ μ^+$ colliders |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2304.14020 |