Journal article
Effective portals to heavy neutral leptons
The journal of high energy physics, Vol.2023(9), pp.1-45
09/01/2023
DOI: 10.1007/JHEP09(2023)001
Abstract
The existence of right-handed neutrinos, or heavy neutral leptons (HNLs), is strongly motivated by the observation of neutrino masses and mixing. The mass of these new particles could lie below the electroweak scale, making them accessible to lowenergy laboratory experiments. Additional new physics at high energies can mediate new interactions between the Standard Model particles and HNLs, and is most conveniently parametrized by the neutrino Standard Model Effective Field Theory, or nu SMEFT for short. In this work, we consider the dimension six nu SMEFT operators involving one HNL field in the mass range of O(1) MeV < MN < O(100) GeV. By recasting existing experimental limits on the production and decay of new light particles, we constrain the Wilson coefficients and new physics scale of each operator as a function of the HNL mass.
Details
- Title: Subtitle
- Effective portals to heavy neutral leptons
- Creators
- Enrique Fernandez-Martinez - Autonomous University of MadridManuel Gonzalez-Lopez - Autonomous University of MadridJosu Hernandez-Garcia - Eötvös Loránd UniversityMatheus Hostert - Perimeter InstituteJacobo Lopez-Pavon - Instituto de Física Corpuscular
- Resource Type
- Journal article
- Publication Details
- The journal of high energy physics, Vol.2023(9), pp.1-45
- DOI
- 10.1007/JHEP09(2023)001
- ISSN
- 1029-8479
- eISSN
- 1029-8479
- Publisher
- Springer Nature
- Number of pages
- 45
- Grant note
- Perimeter Institute for Theoretical Physics Government of Canada through the Department of Innovation, Science and Economic Development CEX2020-001007-S / Generalitat Valenciana through the plan GenT program 101086085-ASYMMETRY / Instituto de Fisica Teorica (IFT UAM-CSIC) in Madrid PID2020-113644GB-I00 / Spanish Research Agency (Agencia Estatal de Investigacion) - MCIN/AEI Province of Ontario through the Ministry of Research, Innovation and Science; Ministry of Research and Technology of the Republic of Indonesia (RISTEK) CIDEGENT/2018/019 / Spanish Ministerio de Ciencia e Innovacion; Spanish Government; Instituto de Salud Carlos III PID2019-108892RB-I00; 860881-HIDDeN / European Union; European Union (EU)
- Language
- English
- Date published
- 09/01/2023
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984945917902771
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