Fluid description of collective neutrino–plasma interaction

The destabilizing role of neutrino beams on the Trivelpiece-Gould modes is considered, assuming electrostatic perturbations in a magnetized plasma composed by electrons in a neutralizing ionic background, coupled to a neutrino species by means of an effective neutrino force arising from the electro-weak interaction. The magnetic field is found to significantly improve the linear instability growth rate, as calculated for Supernova type II environments. On the formal level, for wave vector parallel or perpendicular to the magnetic field the instability growth rate is found from the unmagnetized case replacing the plasma frequency by the appropriated Trivelpiece-Gould frequency. The growth rate associated with oblique propagation is also obtained

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“…(19) together with the appropriate special case from Eq. (A2) gives the same found in [18][19][20], namely…”

Section: Linear Wavessupporting

confidence: 74%

“…Presently the result (30) is the same as the maximal instability growth rate of Refs. [18][19][20], with the simple replacement of the plasma frequency by the upper hybrid frequency.…”

Section: Particular Subcasesmentioning

confidence: 99%

Neutrino-driven electrostatic instabilities in a magnetized plasma

2017

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“…A similar neutrinoplasma fluid model has been also put forward for Langmuir waves [11], but without flavor oscillations. Finally, the time-evolution of the flavor polarization vector P = (P 1 , P 2 , P 3 ) in a material medium is given [12,13] by…”

Section: Physical Modelmentioning

confidence: 99%

Coupling between ion-acoustic waves and neutrino oscillations

2017

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The work investigates the coupling between ion-acoustic waves and neutrino flavor oscillations in a non-relativistic electron-ion plasma under the influence of a mixed neutrino beam. Neutrino oscillations are mediated by the flavor polarization vector dynamics in a material medium. The linear dispersion relation around homogeneous static equilibria is developed. When resonant with the ion-acoustic mode, the neutrino flavor oscillations can transfer energy to the plasma exciting a new fast unstable mode in extreme astrophysical scenarios. The growth rate and the unstable wavelengths are determined in typical type II supernovae parameters. The predictions can be useful for a new indirect probe on neutrino oscillations in nature.

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“…The collective neutrino plasma interaction processes have recently been discussed [9], with particular relevance for the neutrino beam plasma instability. Growth rates scaling with G F and √ G F have already been derived [10][11][12], showing the relevance of the collective decays over the single decays. The work presented here is a natural extension of this approach.…”

Section: Introductionmentioning

confidence: 85%

Parametric excitation of neutrino pairs by electron plasma waves

Mendonça¹,

Serbêto

Bingham

et al. 2005

J. Plasma Phys.

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The collective coupling of neutrinos and anti-neutrinos in a dense plasma is considered. Such a coupling is provided by the existence of electron plasma waves. These waves can parametrically excite neutrino–anti-neutrino pairs, and the parametric decay rate is established. This stimulated process for neutrino pair production can eventually become dominant over the single particle decay rates characteristic of the usual Urca process and provide an alternative mechanism for the neutrino cooling of collapsing neutron stars

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Fluid description of collective neutrino–plasma interaction

Cited by 20 publications

References 14 publications

Neutrino-driven electrostatic instabilities in a magnetized plasma

Neutrino-driven electrostatic instabilities in a magnetized plasma

Coupling between ion-acoustic waves and neutrino oscillations

Parametric excitation of neutrino pairs by electron plasma waves

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