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Gamma ray bursts as probes of neutrino mass, quantum gravity and dark energy

Gamma ray bursts as probes of neutrino mass, quantum gravity and dark energy
Gamma ray bursts as probes of neutrino mass, quantum gravity and dark energy
We calculate the time delays of neutrinos emitted in gamma ray bursts due to the effects of neutrino mass and quantum gravity using a time dependent Hubble constant which can significantly change the naive results presented hitherto in the literature for large redshifts, and gives some sensitivity to the details of dark energy. We show that the effects of neutrino mass, quantum gravity and dark energy may be disentangled by using low energy neutrinos to study neutrino mass, high energy neutrinos to study quantum gravity, and large redshifts to study dark energy. From low energy neutrinos one may obtain direct limits on neutrino masses of order 10-3 eV, and distinguish a neutrino mass hierarchy from an inverted mass hierarchy. From ultra-high energy neutrinos the sensitivity to the scale of quantum gravity can be pushed up to EQG?5×1030 GeV. By studying neutrinos from GRBs at large redshifts a cosmological constant could be distinguished from quintessence.
1550-7998
073005-[14pp]
Choubey, Sandhya
54352d9a-fbbb-4a18-8a65-1b57ff21207c
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Choubey, Sandhya
54352d9a-fbbb-4a18-8a65-1b57ff21207c
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538

Choubey, Sandhya and King, S.F. (2003) Gamma ray bursts as probes of neutrino mass, quantum gravity and dark energy. Physical Review D, 67 (7), 073005-[14pp]. (doi:10.1103/PhysRevD.67.073005).

Record type: Article

Abstract

We calculate the time delays of neutrinos emitted in gamma ray bursts due to the effects of neutrino mass and quantum gravity using a time dependent Hubble constant which can significantly change the naive results presented hitherto in the literature for large redshifts, and gives some sensitivity to the details of dark energy. We show that the effects of neutrino mass, quantum gravity and dark energy may be disentangled by using low energy neutrinos to study neutrino mass, high energy neutrinos to study quantum gravity, and large redshifts to study dark energy. From low energy neutrinos one may obtain direct limits on neutrino masses of order 10-3 eV, and distinguish a neutrino mass hierarchy from an inverted mass hierarchy. From ultra-high energy neutrinos the sensitivity to the scale of quantum gravity can be pushed up to EQG?5×1030 GeV. By studying neutrinos from GRBs at large redshifts a cosmological constant could be distinguished from quintessence.

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Published date: 11 April 2003

Identifiers

Local EPrints ID: 57142
URI: http://eprints.soton.ac.uk/id/eprint/57142
ISSN: 1550-7998
PURE UUID: 153c9e5e-1c2a-4504-9da7-dac0e4b002dd

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Date deposited: 14 Aug 2008
Last modified: 13 Mar 2019 20:34

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