skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Indirect signals from solar dark matter annihilation to long-lived right-handed neutrinos

Abstract

In this paper, we study indirect detection signals from solar annihilation of dark matter (DM) particles into light right-handed (RH) neutrinos with a mass in a 1–5 GeV range. These RH neutrinos can have a sufficiently long lifetime to allow them to decay outside the Sun, and their delayed decays can result in a signal in gamma rays from the otherwise “dark” solar direction, and also a neutrino signal that is not suppressed by the interactions with solar medium. We find that the latest Fermi-LAT and IceCube results place limits on the gamma ray and neutrino signals, respectively. Combined photon and neutrino bounds can constrain the spin-independent DM-nucleon elastic scattering cross section better than direct detection experiments for DM masses from 200 GeV up to several TeV. Finally, the bounds on spin-dependent scattering are also much tighter than the strongest limits from direct detection experiments.

Authors:
 [1];  [2];  [1];  [3]
  1. Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Physics and Astronomy
  2. Texas A & M Univ., College Station, TX (United States). Dept. of Physics and Astronomy. Mitchell Inst. for Fundamental Physics and Astronomy; Wayne State Univ., Detroit, MI (United States). Dept. of Physics and Astronomy
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program; National Science Foundation (NSF)
Contributing Org.:
Texas A & M Univ., College Station, TX (United States); Wayne State Univ., Detroit, MI (United States)
OSTI Identifier:
1357126
Alternate Identifier(s):
OSTI ID: 1349772
Report Number(s):
LA-UR-16-29252
Journal ID: ISSN 2470-0010
Grant/Contract Number:  
AC52-06NA25396; PHY-1417510
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Allahverdi, Rouzbeh, Gao, Yu, Knockel, Bradley, and Shalgar, Shashank. Indirect signals from solar dark matter annihilation to long-lived right-handed neutrinos. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.95.075001.
Allahverdi, Rouzbeh, Gao, Yu, Knockel, Bradley, & Shalgar, Shashank. Indirect signals from solar dark matter annihilation to long-lived right-handed neutrinos. United States. doi:10.1103/PhysRevD.95.075001.
Allahverdi, Rouzbeh, Gao, Yu, Knockel, Bradley, and Shalgar, Shashank. Tue . "Indirect signals from solar dark matter annihilation to long-lived right-handed neutrinos". United States. doi:10.1103/PhysRevD.95.075001. https://www.osti.gov/servlets/purl/1357126.
@article{osti_1357126,
title = {Indirect signals from solar dark matter annihilation to long-lived right-handed neutrinos},
author = {Allahverdi, Rouzbeh and Gao, Yu and Knockel, Bradley and Shalgar, Shashank},
abstractNote = {In this paper, we study indirect detection signals from solar annihilation of dark matter (DM) particles into light right-handed (RH) neutrinos with a mass in a 1–5 GeV range. These RH neutrinos can have a sufficiently long lifetime to allow them to decay outside the Sun, and their delayed decays can result in a signal in gamma rays from the otherwise “dark” solar direction, and also a neutrino signal that is not suppressed by the interactions with solar medium. We find that the latest Fermi-LAT and IceCube results place limits on the gamma ray and neutrino signals, respectively. Combined photon and neutrino bounds can constrain the spin-independent DM-nucleon elastic scattering cross section better than direct detection experiments for DM masses from 200 GeV up to several TeV. Finally, the bounds on spin-dependent scattering are also much tighter than the strongest limits from direct detection experiments.},
doi = {10.1103/PhysRevD.95.075001},
journal = {Physical Review D},
number = 7,
volume = 95,
place = {United States},
year = {Tue Apr 04 00:00:00 EDT 2017},
month = {Tue Apr 04 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

Save / Share: