Journal article
Heavy neutral leptons below the kaon mass at hodoscopic neutrino detectors
Physical review. D, Vol.105(9), 095006
05/11/2022
DOI: 10.1103/PhysRevD.105.095006
Abstract
Heavy neutral leptons (N) below the kaon mass are severely constrained by cosmology and lab-based searches for their decays in flight. If N interacts via an additional force, N -> nu e(+) e(-) decays are enhanced and cosmological limits can be avoided. We show that the T2K and MicroBooNE neutrino experiments provide the best limits on the mixing of N with muon neutrinos, outperforming past-generation experiments, previously thought to dominate. We constrain models with electromagnetically decaying and long-lived N, such as in a transition-magnetic-moment portal and in a leptophilic axionlike particle portal, invoked to explain the MiniBooNEexcess. By considering these models as representative examples, our results showthat explanations of the MiniBooNE excess that involve e(+)e(-) pairs from long-lived particles are in tension with T2K, PS191, and MicroBooNE data. Similarly, these searches also constrain MiniBooNE explanations based on single photons due to the associated e(+)e(-) decay mode via a virtual photon.
Details
- Title: Subtitle
- Heavy neutral leptons below the kaon mass at hodoscopic neutrino detectors
- Creators
- Carlos A. Arguelles - Harvard UniversityNicole Foppiani - Harvard UniversityMatheus Hostert - University of Minnesota
- Resource Type
- Journal article
- Publication Details
- Physical review. D, Vol.105(9), 095006
- DOI
- 10.1103/PhysRevD.105.095006
- ISSN
- 2470-0010
- eISSN
- 2470-0029
- Publisher
- Amer Physical Soc
- Number of pages
- 15
- Grant note
- DE-SC0007881 / Department of Energy; United States Department of Energy (DOE) Province of Ontario through the Ministry of Research, Innovation, and Science; Ministry of Research and Technology of the Republic of Indonesia (RISTEK) Faculty of Arts and Sciences of Harvard University Perimeter Institute for Theoretical Physics PHY-1607611 / National Science Foundation; National Science Foundation (NSF) DE-SC0007881 / U.S. Department of Energy (DOE); United States Department of Energy (DOE) Alfred P. Sloan Foundation Government of Canada through the Department of Innovation, Science, and Economic Development
- Language
- English
- Date published
- 05/11/2022
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984946629902771
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