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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2405.02819 |
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| _version_ | 1866929619136937984 |
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| author | Santiago, Jorge Luis Gutiérrez Hernández-Tomé, G. Portillo-Sánchez, Diego Rendón, Javier |
| author_facet | Santiago, Jorge Luis Gutiérrez Hernández-Tomé, G. Portillo-Sánchez, Diego Rendón, Javier |
| contents | We revisited the computation of the cross section for the $μ^+μ^+\to \ell^+\ell^{+}$ $(\ell^+=τ^+,\, e^+)$ transitions in the presence of new heavy Majorana neutrinos. We focus on scenarios where the masses of the new states are around some few TeV, the so-called low-scale seesaw models. Our analysis is set in a simple model with only two new heavy Majorana neutrinos considering the current limits on the heavy-light mixings. Our results illustrate the difference between the genuine effects of two nondegenerate heavy Majorana states and the degenerate case where they form a Dirac singlet field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_02819 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Authentic Majorana versus singlet Dirac neutrino contributions to $μ^{+}μ^{+}\to \ell^{+}\ell^{+}$ $(\ell=e,τ)$ transitions Santiago, Jorge Luis Gutiérrez Hernández-Tomé, G. Portillo-Sánchez, Diego Rendón, Javier High Energy Physics - Phenomenology We revisited the computation of the cross section for the $μ^+μ^+\to \ell^+\ell^{+}$ $(\ell^+=τ^+,\, e^+)$ transitions in the presence of new heavy Majorana neutrinos. We focus on scenarios where the masses of the new states are around some few TeV, the so-called low-scale seesaw models. Our analysis is set in a simple model with only two new heavy Majorana neutrinos considering the current limits on the heavy-light mixings. Our results illustrate the difference between the genuine effects of two nondegenerate heavy Majorana states and the degenerate case where they form a Dirac singlet field. |
| title | Authentic Majorana versus singlet Dirac neutrino contributions to $μ^{+}μ^{+}\to \ell^{+}\ell^{+}$ $(\ell=e,τ)$ transitions |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2405.02819 |