A new spin on neutrino quantum kinetics

Cirigliano, Vincenzo; Fuller, George M.; Vlasenko, Alexey

doi:10.1016/j.physletb.2015.04.066

Title: A new spin on neutrino quantum kinetics

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Abstract

Recent studies have demonstrated that in anisotropic environments a coherent spin-flip term arises in the Quantum Kinetic Equations (QKEs) which govern the evolution of neutrino flavor and spin in hot and dense media. This term can mediate neutrino–antineutrino transformation for Majorana neutrinos and active-sterile transformation for Dirac neutrinos. We discuss the physical origin of the coherent spin-flip term and provide explicit expressions for the QKEs in a two-flavor model with spherical geometry. In this context, we demonstrate that coherent neutrino spin transformation depends on the absolute neutrino mass and Majorana phases.

Authors:: Cirigliano, Vincenzo; Fuller, George M.; Vlasenko, Alexey

Publication Date:: Wed Jul 01 00:00:00 EDT 2015

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1198653

Alternate Identifier(s):: OSTI ID: 1208658

Grant/Contract Number:: AC52-06NA25396

Resource Type:: Published Article

Journal Name:: Physics Letters B

Additional Journal Information:: Journal Name: Physics Letters B Journal Volume: 747 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Cirigliano, Vincenzo, Fuller, George M., and Vlasenko, Alexey. A new spin on neutrino quantum kinetics.  Netherlands: N. p., 2015. 
Web.  doi:10.1016/j.physletb.2015.04.066.

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                    Cirigliano, Vincenzo, Fuller, George M., & Vlasenko, Alexey. A new spin on neutrino quantum kinetics.  Netherlands.  https://doi.org/10.1016/j.physletb.2015.04.066

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                    Cirigliano, Vincenzo, Fuller, George M., and Vlasenko, Alexey. Wed .  
"A new spin on neutrino quantum kinetics".  Netherlands.  https://doi.org/10.1016/j.physletb.2015.04.066.

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@article{osti_1198653,

  title        = {A new spin on neutrino quantum kinetics},

  author       = {Cirigliano, Vincenzo and Fuller, George M. and Vlasenko, Alexey},

  abstractNote = {Recent studies have demonstrated that in anisotropic environments a coherent spin-flip term arises in the Quantum Kinetic Equations (QKEs) which govern the evolution of neutrino flavor and spin in hot and dense media. This term can mediate neutrino–antineutrino transformation for Majorana neutrinos and active-sterile transformation for Dirac neutrinos. We discuss the physical origin of the coherent spin-flip term and provide explicit expressions for the QKEs in a two-flavor model with spherical geometry. In this context, we demonstrate that coherent neutrino spin transformation depends on the absolute neutrino mass and Majorana phases.},

  doi          = {10.1016/j.physletb.2015.04.066},

  journal      = {Physics Letters B},

  number       = C,

  volume       = 747,

  place        = {Netherlands},

  year         = {Wed Jul 01 00:00:00 EDT 2015},

  month        = {Wed Jul 01 00:00:00 EDT 2015}

}

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