Cargando…
Probing Lorentz Violation in Neutrino Propagation from a Core-Collapse Supernova
Supernova explosions provide the most sensitive probes of neutrino propagation, such as the possibility that neutrino velocities might be affected by the foamy structure of space-time thought to be generated by quantum-gravitational (QG) effects. Recent two-dimensional simulations of the neutrino em...
Autores principales: | , , , , |
---|---|
Lenguaje: | eng |
Publicado: |
2011
|
Materias: | |
Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.85.045032 http://cds.cern.ch/record/1392888 |
_version_ | 1780923448790351872 |
---|---|
author | Ellis, John Janka, Hans-Thomas Mavromatos, Nikolaos E. Sakharov, Alexander S. Sarkisyan, Edward K.G. |
author_facet | Ellis, John Janka, Hans-Thomas Mavromatos, Nikolaos E. Sakharov, Alexander S. Sarkisyan, Edward K.G. |
author_sort | Ellis, John |
collection | CERN |
description | Supernova explosions provide the most sensitive probes of neutrino propagation, such as the possibility that neutrino velocities might be affected by the foamy structure of space-time thought to be generated by quantum-gravitational (QG) effects. Recent two-dimensional simulations of the neutrino emissions from core-collapse supernovae suggest that they might exhibit variations in time on the scale of a few milliseconds. We analyze simulations of such neutrino emissions using a wavelet technique, and consider the limits that might be set on a linear or quadratic violation of Lorentz invariance in the group velocities of neutrinos of different energies, v/c = [1 \pm (E/M_{nuLV1})] or [1 \pm (E/M_{\nuLV2})^2], if variations on such short time scales were to be observed, where the mass scales M_{nuLVi} might appear in models of quantum gravity. We find prospective sensitivities to M_{nuLV1} ~ 2 X 10^{13} GeV and M_{nuLV2} ~ 10^6 GeV at the 95% confidence level, up to two orders of magnitude beyond estimates made using previous one-dimensional simulations of core-collapse supernovae. We also analyze the prospective sensitivities to scenarios in which the propagation times of neutrinos of fixed energies are subject to stochastic fluctuations. |
id | cern-1392888 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2011 |
record_format | invenio |
spelling | cern-13928882023-03-14T20:53:38Zdoi:10.1103/PhysRevD.85.045032http://cds.cern.ch/record/1392888engEllis, JohnJanka, Hans-ThomasMavromatos, Nikolaos E.Sakharov, Alexander S.Sarkisyan, Edward K.G.Probing Lorentz Violation in Neutrino Propagation from a Core-Collapse SupernovaParticle Physics - PhenomenologySupernova explosions provide the most sensitive probes of neutrino propagation, such as the possibility that neutrino velocities might be affected by the foamy structure of space-time thought to be generated by quantum-gravitational (QG) effects. Recent two-dimensional simulations of the neutrino emissions from core-collapse supernovae suggest that they might exhibit variations in time on the scale of a few milliseconds. We analyze simulations of such neutrino emissions using a wavelet technique, and consider the limits that might be set on a linear or quadratic violation of Lorentz invariance in the group velocities of neutrinos of different energies, v/c = [1 \pm (E/M_{nuLV1})] or [1 \pm (E/M_{\nuLV2})^2], if variations on such short time scales were to be observed, where the mass scales M_{nuLVi} might appear in models of quantum gravity. We find prospective sensitivities to M_{nuLV1} ~ 2 X 10^{13} GeV and M_{nuLV2} ~ 10^6 GeV at the 95% confidence level, up to two orders of magnitude beyond estimates made using previous one-dimensional simulations of core-collapse supernovae. We also analyze the prospective sensitivities to scenarios in which the propagation times of neutrinos of fixed energies are subject to stochastic fluctuations.Supernova explosions provide the most sensitive probes of neutrino propagation, such as the possibility that neutrino velocities might be affected by the foamy structure of space-time thought to be generated by quantum-gravitational (QG) effects. Recent two-dimensional simulations of the neutrino emissions from core-collapse supernovae suggest that they might exhibit variations in time on the scale of a few milliseconds. We analyze simulations of such neutrino emissions using a wavelet technique, and consider the limits that might be set on a linear or quadratic violation of Lorentz invariance in the group velocities of neutrinos of different energies, v/c = [1 \pm (E/M_{nuLV1})] or [1 \pm (E/M_{\nuLV2})^2], if variations on such short time scales were to be observed, where the mass scales M_{nuLVi} might appear in models of quantum gravity. We find prospective sensitivities to M_{nuLV1} ~ 2 X 10^{13} GeV and M_{nuLV2} ~ 10^6 GeV at the 95% confidence level, up to two orders of magnitude beyond estimates made using previous one-dimensional simulations of core-collapse supernovae. We also analyze the prospective sensitivities to scenarios in which the propagation times of neutrinos of fixed energies are subject to stochastic fluctuations.arXiv:1110.4848KCL-PH-TH-2011-14LCTS-2011-06CERN-PH-TH-2011-131KCL-PH-TH-2011-14LCTS-2011-06CERN-PH-TH-2011-131oai:cds.cern.ch:13928882011-10-24 |
spellingShingle | Particle Physics - Phenomenology Ellis, John Janka, Hans-Thomas Mavromatos, Nikolaos E. Sakharov, Alexander S. Sarkisyan, Edward K.G. Probing Lorentz Violation in Neutrino Propagation from a Core-Collapse Supernova |
title | Probing Lorentz Violation in Neutrino Propagation from a Core-Collapse Supernova |
title_full | Probing Lorentz Violation in Neutrino Propagation from a Core-Collapse Supernova |
title_fullStr | Probing Lorentz Violation in Neutrino Propagation from a Core-Collapse Supernova |
title_full_unstemmed | Probing Lorentz Violation in Neutrino Propagation from a Core-Collapse Supernova |
title_short | Probing Lorentz Violation in Neutrino Propagation from a Core-Collapse Supernova |
title_sort | probing lorentz violation in neutrino propagation from a core-collapse supernova |
topic | Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1103/PhysRevD.85.045032 http://cds.cern.ch/record/1392888 |
work_keys_str_mv | AT ellisjohn probinglorentzviolationinneutrinopropagationfromacorecollapsesupernova AT jankahansthomas probinglorentzviolationinneutrinopropagationfromacorecollapsesupernova AT mavromatosnikolaose probinglorentzviolationinneutrinopropagationfromacorecollapsesupernova AT sakharovalexanders probinglorentzviolationinneutrinopropagationfromacorecollapsesupernova AT sarkisyanedwardkg probinglorentzviolationinneutrinopropagationfromacorecollapsesupernova |