Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinos

التفاصيل البيبلوغرافية
العنوان: Extraction of neutrino Yukawa parameters from displaced vertices of sneutrinos
المؤلفون: Chakraborty, Amit, Moretti, Stefano, Shepherd-Themistocleous, Claire H., Waltari, Harri
المصدر: JHEP 06 (2021) 027
سنة النشر: 2020
المجموعة: High Energy Physics - Phenomenology
مصطلحات موضوعية: High Energy Physics - Phenomenology
الوصف: We study displaced signatures of sneutrino pairs potentially emerging at the Large Hadron Collider (LHC) in a Next-to-Minimal Supersymmetric Standard Model supplemented with right-handed neutrinos triggering a Type-I seesaw mechanism. We show how such signatures can be established through a heavy Higgs portal in the presence of both leptonic and hadronic decays of the sneutrinos. We finally illustrate how the Yukawa parameters of the latter can be extracted from fitting kinematical quantities pertaining to the corresponding two displaced vertices, thereby characterising the dynamics of the underlying mechanism of neutrino mass generation. We show our numerical results for the case of both the current and High-Luminosity LHC.
Comment: 21 pages, 7 figures. Revised version, matches the version accepted to JHEP
نوع الوثيقة: Working Paper
DOI: 10.1007/JHEP06(2021)027
URL الوصول: http://arxiv.org/abs/2012.14034
رقم الأكسشن: edsarx.2012.14034
قاعدة البيانات: arXiv