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Title: Effective potential for highly relativistic neutrinos in a weakly magnetized medium and their oscillation

Abstract

We have calculated the effective potential experienced by highly relativistic neutrinos in a weakly magnetized electron–positron plasma, where a momentum-dependent finite-width correction to the propagator of W is considered to account for the threshold effect. Magnetars are believed to be sources of TeV–PeV neutrinos which are produced due to photomeson and proton–proton interactions in their atmosphere. We have studied the resonant-oscillation process ν e ↔ ν μ,τ of the highly relativistic neutrinos in the atmosphere of SGR 1806-20, which is a magnetar. It is shown that, for high-energy neutrinos propagating within the magnetar atmosphere, the resonance condition can never be satisfied. On the other hand, if GeV neutrinos are produced deep inside the magnetar atmosphere, where the temperature is about 50 keV or more, then these neutrinos can undergo resonant oscillation.

Authors:
 [1];  [2]
  1. National Taiwan Univ., Taipei (Taiwan). Inst. of Astrophysics and Particle Physics and Dept. of Physics; Univ. Nacional Autónoma de México (Mexico). Inst. de Ciencias Nucleares
  2. National Taiwan Univ., Taipei (Taiwan). Inst. of Astrophysics and Particle Physics and Dept. of Physics; National Taiwan Univ., Taipei (Taiwan). Leung Center for Cosmology and Particle Astrophysics, Centre for Theoretical Sciences
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1511308
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 58; Journal Issue: 4; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Sahu, Sarira, and Hwang, W. -Y. P. Effective potential for highly relativistic neutrinos in a weakly magnetized medium and their oscillation. United States: N. p., 2008. Web. doi:10.1140/epjc/s10052-008-0797-x.
Sahu, Sarira, & Hwang, W. -Y. P. Effective potential for highly relativistic neutrinos in a weakly magnetized medium and their oscillation. United States. doi:10.1140/epjc/s10052-008-0797-x.
Sahu, Sarira, and Hwang, W. -Y. P. Thu . "Effective potential for highly relativistic neutrinos in a weakly magnetized medium and their oscillation". United States. doi:10.1140/epjc/s10052-008-0797-x. https://www.osti.gov/servlets/purl/1511308.
@article{osti_1511308,
title = {Effective potential for highly relativistic neutrinos in a weakly magnetized medium and their oscillation},
author = {Sahu, Sarira and Hwang, W. -Y. P.},
abstractNote = {We have calculated the effective potential experienced by highly relativistic neutrinos in a weakly magnetized electron–positron plasma, where a momentum-dependent finite-width correction to the propagator of W is considered to account for the threshold effect. Magnetars are believed to be sources of TeV–PeV neutrinos which are produced due to photomeson and proton–proton interactions in their atmosphere. We have studied the resonant-oscillation process ν e ↔ ν μ,τ of the highly relativistic neutrinos in the atmosphere of SGR 1806-20, which is a magnetar. It is shown that, for high-energy neutrinos propagating within the magnetar atmosphere, the resonance condition can never be satisfied. On the other hand, if GeV neutrinos are produced deep inside the magnetar atmosphere, where the temperature is about 50 keV or more, then these neutrinos can undergo resonant oscillation.},
doi = {10.1140/epjc/s10052-008-0797-x},
journal = {European Physical Journal. C, Particles and Fields},
number = 4,
volume = 58,
place = {United States},
year = {2008},
month = {11}
}

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

Citation Metrics:
Cited by: 3 works
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Figures / Tables:

Fig. 1 Fig. 1: The functions f (sW), the upper one, and f (−sW), the lower one, of (42)

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