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Title: eV-scale sterile neutrinos from an extra dimension

Abstract

Motivated by the short-baseline neutrino oscillation anomalies that suggest the existence of sterile neutrinos at the eV scale, we construct a scenario of a seesaw mechanism for 3+1 light neutrinos implemented by warped compactification of an extra dimension. As the seesaw mechanism necessitates at least two right-handed neutrinos at mass scales much larger than eV, incorporating an eV-scale sterile neutrino into a seesaw entails large mass hierarchies among the singlet neutrinos. We show that such hierarchies can be naturally explained by moderate fluctuations of the five-dimensional fermion mass parameters.

Authors:
ORCiD logo [1]; ORCiD logo [2]
  1. Sungkyunkwan Univ., Suwon (Republic of Korea)
  2. Univ. of Alabama, Tuscaloosa, AL (United States)
Publication Date:
Research Org.:
Univ. of Alabama, Tuscaloosa, AL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1580457
Alternate Identifier(s):
OSTI ID: 1580511
Grant/Contract Number:  
SC0012447; NRF-2018R1D1A1B07051127
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 100; Journal Issue: 11; Related Information: N/A; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; sterile neutrinos; extra dimension

Citation Formats

Kawai, Shinsuke, and Okada, Nobuchika. eV-scale sterile neutrinos from an extra dimension. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.100.115043.
Kawai, Shinsuke, & Okada, Nobuchika. eV-scale sterile neutrinos from an extra dimension. United States. doi:10.1103/PhysRevD.100.115043.
Kawai, Shinsuke, and Okada, Nobuchika. Thu . "eV-scale sterile neutrinos from an extra dimension". United States. doi:10.1103/PhysRevD.100.115043.
@article{osti_1580457,
title = {eV-scale sterile neutrinos from an extra dimension},
author = {Kawai, Shinsuke and Okada, Nobuchika},
abstractNote = {Motivated by the short-baseline neutrino oscillation anomalies that suggest the existence of sterile neutrinos at the eV scale, we construct a scenario of a seesaw mechanism for 3+1 light neutrinos implemented by warped compactification of an extra dimension. As the seesaw mechanism necessitates at least two right-handed neutrinos at mass scales much larger than eV, incorporating an eV-scale sterile neutrino into a seesaw entails large mass hierarchies among the singlet neutrinos. We show that such hierarchies can be naturally explained by moderate fluctuations of the five-dimensional fermion mass parameters.},
doi = {10.1103/PhysRevD.100.115043},
journal = {Physical Review D},
number = 11,
volume = 100,
place = {United States},
year = {2019},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.100.115043

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Works referenced in this record:

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  • Asaka, Takehiko; Eijima, Shintaro; Ishida, Hiroyuki
  • Journal of High Energy Physics, Vol. 2011, Issue 4
  • DOI: 10.1007/JHEP04(2011)011