On possible tachyonic state of neutrino dark matter

We revive the historically first dark matter model based on neutrinos, but with an additional assumption that neutrinos might exist in tachyonic almost sterile states. To this end, we propose a group-theoretical algorithm for the description of tachyons. The key point is that we employ a distinct ta...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2016-02
Main Authors: Makukov, Maxim A, Mychelkin, Eduard G, Saveliev, Vladimir L
Format: Article
Language:English
Subjects:
Algorithms
Dark matter
Galactic clusters
Galactic halos
Galaxies
Neutrinos
Parameterization
Tachyons
Universe
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We revive the historically first dark matter model based on neutrinos, but with an additional assumption that neutrinos might exist in tachyonic almost sterile states. To this end, we propose a group-theoretical algorithm for the description of tachyons. The key point is that we employ a distinct tachyon Lorentz group with new (superluminal) parametrization which does not lead to violation of causality and unitarity. Our dark matter model represents effectively scalar tachyonic neutrino-antineutrino conglomerate. Distributed all over the universe, such fluid behaves as stable isothermal/stiff medium which produces somewhat denser regions (`halos') around galaxies and clusters. To avoid the central singularity inherent to the isothermal profile, we apply a special smoothing algorithm which yields density distributions and rotation curves consistent with observational data.
ISSN:2331-8422
DOI:10.48550/arxiv.1602.03743