Authentic Majorana versus singlet Dirac neutrino contributions to $\mu^-\mu^-\to \ell^-\ell^-$ $(\ell=e,\tau)$ transitions

التفاصيل البيبلوغرافية
العنوان: Authentic Majorana versus singlet Dirac neutrino contributions to $\mu^-\mu^-\to \ell^-\ell^-$ $(\ell=e,\tau)$ transitions
المؤلفون: Santiago, Jorge Luis Gutiérrez, Hernández-Tomé, G., Portillo-Sánchez, Diego, Rendón, Javier
سنة النشر: 2024
المجموعة: High Energy Physics - Phenomenology
مصطلحات موضوعية: High Energy Physics - Phenomenology
الوصف: We revisited the computation of the cross section for the $\mu^-\mu^-\to \ell^-\ell^{-}$ $(\ell^-=\tau^-,\, e^-)$ 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.
Comment: 18 pages, 3 Figures
نوع الوثيقة: Working Paper
الوصول الحر: http://arxiv.org/abs/2405.02819Test
رقم الانضمام: edsarx.2405.02819
قاعدة البيانات: arXiv