Physics of neutrino flavor transformation through matter–neutrino resonances

Wu, Meng-Ru; Duan, Huaiyu; Qian, Yong-Zhong

doi:10.1016/j.physletb.2015.11.027

Title: Physics of neutrino flavor transformation through matter–neutrino resonances

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Abstract

In astrophysical environments such as core-collapse supernovae and neutron star–neutron star or neutron star–black hole mergers where dense neutrino media are present, matter–neutrino resonances (MNRs) can occur when the neutrino propagation potentials due to neutrino–electron and neutrino–neutrino for-ward scattering nearly cancel each other. We show that neutrino flavor transformation through MNRs can be explained by multiple adiabatic solutions similar to the Mikheyev–Smirnov–Wolfenstein mecha-nism. As a result, we find that for the normal neutrino mass hierarchy, neutrino flavor evolution through MNRs can be sensitive to the shape of neutrino spectra and the adiabaticity of the system, but such sensitivity is absent for the inverted hierarchy.

Authors:

; Duan, Huaiyu; Qian, Yong-Zhong

Publication Date:: Fri Jan 01 00:00:00 EST 2016

Research Org.:: Univ. of New Mexico, Albuquerque, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1226679

Alternate Identifier(s):: OSTI ID: 1238792

Grant/Contract Number:: SC0008142; FG02-87ER40328

Resource Type:: Published Article

Journal Name:: Physics Letters B

Additional Journal Information:: Journal Name: Physics Letters B Journal Volume: 752 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; neutrino oscillations; dense neutrino medium; black hole accretion disk; core-collapse supernova

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                    Wu, Meng-Ru, Duan, Huaiyu, and Qian, Yong-Zhong. Physics of neutrino flavor transformation through matter–neutrino resonances.  Netherlands: N. p., 2016. 
Web.  doi:10.1016/j.physletb.2015.11.027.

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                    Wu, Meng-Ru, Duan, Huaiyu, & Qian, Yong-Zhong. Physics of neutrino flavor transformation through matter–neutrino resonances.  Netherlands.  https://doi.org/10.1016/j.physletb.2015.11.027

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                    Wu, Meng-Ru, Duan, Huaiyu, and Qian, Yong-Zhong. Fri .  
"Physics of neutrino flavor transformation through matter–neutrino resonances".  Netherlands.  https://doi.org/10.1016/j.physletb.2015.11.027.

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@article{osti_1226679,

  title        = {Physics of neutrino flavor transformation through matter–neutrino resonances},

  author       = {Wu, Meng-Ru and Duan, Huaiyu and Qian, Yong-Zhong},

  abstractNote = {In astrophysical environments such as core-collapse supernovae and neutron star–neutron star or neutron star–black hole mergers where dense neutrino media are present, matter–neutrino resonances (MNRs) can occur when the neutrino propagation potentials due to neutrino–electron and neutrino–neutrino for-ward scattering nearly cancel each other. We show that neutrino flavor transformation through MNRs can be explained by multiple adiabatic solutions similar to the Mikheyev–Smirnov–Wolfenstein mecha-nism. As a result, we find that for the normal neutrino mass hierarchy, neutrino flavor evolution through MNRs can be sensitive to the shape of neutrino spectra and the adiabaticity of the system, but such sensitivity is absent for the inverted hierarchy.},

  doi          = {10.1016/j.physletb.2015.11.027},

  journal      = {Physics Letters B},

  number       = C,

  volume       = 752,

  place        = {Netherlands},

  year         = {Fri Jan 01 00:00:00 EST 2016},

  month        = {Fri Jan 01 00:00:00 EST 2016}

}

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