Tracing cosmic accelerators with decaying neutrons

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4471

Title:	Tracing cosmic accelerators with decaying neutrons
Authors:	Moharana, Reetanjali Gupta, Nayantara
Keywords:	Radio sources cosmic rays
Issue Date:	Jul-2010
Publisher:	The American Physical Society
Citation:	Physical Review D, 2010, Vol.82, p023003
Abstract:	Ultrahigh-energy neutrons and pions are likely to be produced in particle interactions inside cosmic ray sources and subsequently decay to neutrinos and other secondary particles [π±→μ±νμ(ν¯μ),μ±→e±ν¯μ(νμ)νe(ν¯e)]. In high magnetic fields of the cosmic acceleration sites, the ultrahigh-energy-charged particles may lose energy significantly due to synchrotron radiation before decay. We show that for gamma-ray bursts in the internal shock model, the flux of very high-energy antineutrinos (ν¯e) produced from decaying ultrahigh-energy neutrons can be more than the total neutrino flux produced in pion decay depending on the values of their Lorentz factors, luminosities, and variability times.
Description:	Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
URI:	http://hdl.handle.net/2289/4471
ISSN:	1550-7998 1550-2368 (Online)
Alternative Location:	http://adsabs.harvard.edu/abs/2010PhRvD..82b3003M http://arxiv.org/abs/1005.0250 http://dx.doi.org/10.1103/PhysRevD.82.023003
Copyright:	2010 The American Physical Society
Appears in Collections:	Research Papers (A&A)

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