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Title: Luminous solar neutrinos. I. Dipole portals

Abstract

Solar neutrinos upscattering inside the Earth can source unstable particles that can decay inside terrestrial detectors. Contrary to naive expectations we show that when the decay length is much shorter than the radius of the \emph{Earth} (rather than the detector), the event rate is independent of the decay length. In this paper we study a transition dipole operator (neutrino dipole portal) and show that Borexino's existing data probes previously untouched parameter space in the 0.5--20 MeV regime, complementing recent cosmological and supernova bounds. We briefly comment on similarities and differences with luminous dark matter and comment on future prospects for analogous signals stemming from atmospheric neutrinos.

Authors:
ORCiD logo
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1826943
Alternate Identifier(s):
OSTI ID: 1712768
Report Number(s):
FERMILAB-PUB-20-521-T-V; arXiv:2010.04193
Journal ID: ISSN 2470-0010; PRVDAQ; 075027
Grant/Contract Number:  
AC02-07CH11359; SC0019095
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 104 Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTRONOMY AND ASTROPHYSICS; Extrasolar neutrino astronomy; Solar neutrinos; Physical Systems; Heavy neutrinos; Sterile neutrinos; Neutrino detectors

Citation Formats

Plestid, Ryan. Luminous solar neutrinos. I. Dipole portals. United States: N. p., 2021. Web. doi:10.1103/PhysRevD.104.075027.
Plestid, Ryan. Luminous solar neutrinos. I. Dipole portals. United States. https://doi.org/10.1103/PhysRevD.104.075027
Plestid, Ryan. Thu . "Luminous solar neutrinos. I. Dipole portals". United States. https://doi.org/10.1103/PhysRevD.104.075027.
@article{osti_1826943,
title = {Luminous solar neutrinos. I. Dipole portals},
author = {Plestid, Ryan},
abstractNote = {Solar neutrinos upscattering inside the Earth can source unstable particles that can decay inside terrestrial detectors. Contrary to naive expectations we show that when the decay length is much shorter than the radius of the \emph{Earth} (rather than the detector), the event rate is independent of the decay length. In this paper we study a transition dipole operator (neutrino dipole portal) and show that Borexino's existing data probes previously untouched parameter space in the 0.5--20 MeV regime, complementing recent cosmological and supernova bounds. We briefly comment on similarities and differences with luminous dark matter and comment on future prospects for analogous signals stemming from atmospheric neutrinos.},
doi = {10.1103/PhysRevD.104.075027},
journal = {Physical Review D},
number = 7,
volume = 104,
place = {United States},
year = {2021},
month = {10}
}

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