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Title: Multi-angle calculation of the matter-neutrino resonance near an accretion disk

Abstract

We perform a numerical study of the matter-neutrino resonance in a multi-angle calculation in the vicinity of an accretion disk. We assume thermally distributed neutrino and anti-neutrino fields emitted by two-dimensional disk that is homogeneous and isotropic; the electrons are assumed to be at constant density. We compare the result of this computation to that obtained using single-angle approximation. Here, we investigate the robustness of matter-neutrino resonance in environment surrounding accretion disks by progressively relaxing the single angle approximation. We find that the multi-angle results in the present simplified model do not support a robust resonance mechanism as suggested by the single angle treatment. Lastly, we also discuss the context under which matter-neutrino resonance may be important in future studies.

Authors:
ORCiD logo [1]
  1. 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
OSTI Identifier:
1469537
Report Number(s):
LA-UR-17-26195
Journal ID: ISSN 1475-7516
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2018; Journal Issue: 02; Journal ID: ISSN 1475-7516
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; neutrino oscillations; matter-neutrino resonance

Citation Formats

Shalgar, Shashank M. Multi-angle calculation of the matter-neutrino resonance near an accretion disk. United States: N. p., 2018. Web. doi:10.1088/1475-7516/2018/02/010.
Shalgar, Shashank M. Multi-angle calculation of the matter-neutrino resonance near an accretion disk. United States. doi:10.1088/1475-7516/2018/02/010.
Shalgar, Shashank M. Wed . "Multi-angle calculation of the matter-neutrino resonance near an accretion disk". United States. doi:10.1088/1475-7516/2018/02/010. https://www.osti.gov/servlets/purl/1469537.
@article{osti_1469537,
title = {Multi-angle calculation of the matter-neutrino resonance near an accretion disk},
author = {Shalgar, Shashank M.},
abstractNote = {We perform a numerical study of the matter-neutrino resonance in a multi-angle calculation in the vicinity of an accretion disk. We assume thermally distributed neutrino and anti-neutrino fields emitted by two-dimensional disk that is homogeneous and isotropic; the electrons are assumed to be at constant density. We compare the result of this computation to that obtained using single-angle approximation. Here, we investigate the robustness of matter-neutrino resonance in environment surrounding accretion disks by progressively relaxing the single angle approximation. We find that the multi-angle results in the present simplified model do not support a robust resonance mechanism as suggested by the single angle treatment. Lastly, we also discuss the context under which matter-neutrino resonance may be important in future studies.},
doi = {10.1088/1475-7516/2018/02/010},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 02,
volume = 2018,
place = {United States},
year = {2018},
month = {2}
}

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