QuasiClassical Gravity Effect on Neutrino Oscillations in a Gravitational Field of a Heavy Astrophysical Object
(2015) In Advances in High Energy Physics Abstract
 In the framework of quantum field theory, a graviton interacts locally with a quantum state having definite mass, that is, the gravitational mass eigenstate, while a weak boson interacts with a state having definite flavor, that is, the flavor eigenstate. An interaction of a neutrino with an energetic graviton may trigger the collapse of the neutrino to a definite mass eigenstate with probability expressed in terms of PMNS mixing matrix elements. Thus, gravitons would induce quantum decoherence of a coherent neutrino flavor state similarly to how weak bosons induce quantum decoherence of a neutrino in a definite mass state. We demonstrate that such an essentially quantum gravity effect may have strong consequences for neutrino oscillation... (More)
 In the framework of quantum field theory, a graviton interacts locally with a quantum state having definite mass, that is, the gravitational mass eigenstate, while a weak boson interacts with a state having definite flavor, that is, the flavor eigenstate. An interaction of a neutrino with an energetic graviton may trigger the collapse of the neutrino to a definite mass eigenstate with probability expressed in terms of PMNS mixing matrix elements. Thus, gravitons would induce quantum decoherence of a coherent neutrino flavor state similarly to how weak bosons induce quantum decoherence of a neutrino in a definite mass state. We demonstrate that such an essentially quantum gravity effect may have strong consequences for neutrino oscillation phenomena in astrophysics due to relatively large scattering cross sections of relativistic neutrinos undergoing large angle radiation of energetic gravitons in gravitational field of a classical massive source (i.e., the quasiclassical case of gravitational BetheHeitler scattering). This gravitoninduced decoherence is compared to decoherence due to propagation in the presence of the Earth matter effect. Based on this study, we propose a new technique for the indirect detection of energetic gravitons by measuring the flavor composition of astrophysical neutrinos. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/record/8220559
 author
 Miller, Jonathan and Pasechnik, Roman ^{LU}
 organization
 publishing date
 2015
 type
 Contribution to journal
 publication status
 published
 subject
 in
 Advances in High Energy Physics
 publisher
 Hindawi Publishing Corporation
 external identifiers

 wos:000362756400001
 scopus:84944200126
 ISSN
 16877357
 DOI
 10.1155/2015/381569
 language
 English
 LU publication?
 yes
 id
 0948739db8ee4dc0a25538b197867f24 (old id 8220559)
 date added to LUP
 20151130 07:58:16
 date last changed
 20170101 03:26:40
@article{0948739db8ee4dc0a25538b197867f24, abstract = {In the framework of quantum field theory, a graviton interacts locally with a quantum state having definite mass, that is, the gravitational mass eigenstate, while a weak boson interacts with a state having definite flavor, that is, the flavor eigenstate. An interaction of a neutrino with an energetic graviton may trigger the collapse of the neutrino to a definite mass eigenstate with probability expressed in terms of PMNS mixing matrix elements. Thus, gravitons would induce quantum decoherence of a coherent neutrino flavor state similarly to how weak bosons induce quantum decoherence of a neutrino in a definite mass state. We demonstrate that such an essentially quantum gravity effect may have strong consequences for neutrino oscillation phenomena in astrophysics due to relatively large scattering cross sections of relativistic neutrinos undergoing large angle radiation of energetic gravitons in gravitational field of a classical massive source (i.e., the quasiclassical case of gravitational BetheHeitler scattering). This gravitoninduced decoherence is compared to decoherence due to propagation in the presence of the Earth matter effect. Based on this study, we propose a new technique for the indirect detection of energetic gravitons by measuring the flavor composition of astrophysical neutrinos.}, articleno = {381569}, author = {Miller, Jonathan and Pasechnik, Roman}, issn = {16877357}, language = {eng}, publisher = {Hindawi Publishing Corporation}, series = {Advances in High Energy Physics}, title = {QuasiClassical Gravity Effect on Neutrino Oscillations in a Gravitational Field of a Heavy Astrophysical Object}, url = {http://dx.doi.org/10.1155/2015/381569}, year = {2015}, }