Affiliation:
1. Istituto Nazionale di Fisica Nucleare Sezione di Napoli
2. Indian Institute of Science Bangalore
3. European Organization for Nuclear Research
Abstract
Dark, chiral fermions carrying lepton flavor quantum numbers are natural candidates for freeze-in. Small couplings with the
Standard Model fermions of the order of lepton Yukawas are `automatic' in the limit of Minimal Flavor Violation. In the absence of total lepton number violating interactions, particles with certain representations under the flavor group remain absolutely stable. For masses in the GeV-TeV range, the simplest model with three flavors, leads to signals at future direct detection experiments like DARWIN. Interestingly, freeze-in with a smaller flavor group such as SU(2) is already being
probed by XENON1T.
Funder
Department of Science and Technology, Ministry of Science and Technology
Ministero dell’Istruzione, dell’Università e della Ricerca
Subject
General Physics and Astronomy
Cited by
3 articles.
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