Abstract
We consider a scenario with only one sterile neutrino $ N $, negligible mixing with the active neutrinos $ \nu_{L} $, where its interactions with ordinary particles could be described in a model independent approach based on an effective theory. Under such a framwork, we consider the contributions of the sterile neutrino $N$ to the pure leptonic decays $ M \rightarrow l\nu $ and $ \nu \overline{\nu} $, and the radiative leptonic decays $ M \rightarrow l\nu\gamma $ with $M$ denoting the pseudoscalar mesons $ B $, $ D $ and $ K$. We find that it can produce significant effects on some of these rare decay processes.
Highlights
Discovery of the 125 GeV scalar particle seeming to be the Higgs boson predicted by the standard model (SM) [1,2] is the crowning achievement of the LHC Run I
The main goal of this paper is to consider a most simple scenario with only one sterile neutrino N, which has a negligible mixing with the SM neutrinos νL and interacts with ordinary particles by effective operators of higher dimension, and see whether N can produce significant contributions to the decay processes M → lν, lνγ and νν
The effects of the new physics involving one sterile neutrino and the SM fields can be parametrized by a set of effective operators OJ satisfying the SUð2ÞL × Uð1ÞY gauge symmetry [14]
Summary
We consider a scenario with only one sterile neutrino N and negligible mixing with the active neutrinos νL, where its interactions with ordinary particles could be described in a model-independent approach based on an effective theory. Under such a framework, we consider the contributions of the sterile neutrino N to the pure leptonic decays M → lν and νν, and the radiative leptonic decays M → lνγ with M denoting the pseudoscalar mesons B, D, and K.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.