Dynamical Role of Light Neutral Leptons in Cosmology
Using the Vlasov equation, we show that massive galactic halos cannot be composed of stable neutral leptons of mass < or approx. = 1 MeV. Since most of the mass in clusters of galaxies probably consists of stripped halos, we conclude that the ''missing mass'' in clusters does...
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| Veröffentlicht in: | Phys. Rev. Lett.; (United States) 1979-02, Vol.42 (6), p.407-410 |
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| container_title | Phys. Rev. Lett.; (United States) |
| container_volume | 42 |
| creator | Tremaine, Scott Gunn, James E. |
| description | Using the Vlasov equation, we show that massive galactic halos cannot be composed of stable neutral leptons of mass < or approx. = 1 MeV. Since most of the mass in clusters of galaxies probably consists of stripped halos, we conclude that the ''missing mass'' in clusters does not consist of leptons of mass < or approx. = 1 MeV (e.g., muon or electron neutrinos). Lee and Weinberg's hypothetical heave leptons (mass approx. = 1 GeV) are not ruled out by this argument. |
| doi_str_mv | 10.1103/PhysRevLett.42.407 |
| format | Article |
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Lee and Weinberg's hypothetical heave leptons (mass approx. = 1 GeV) are not ruled out by this argument.</description><identifier>ISSN: 0031-9007</identifier><identifier>DOI: 10.1103/PhysRevLett.42.407</identifier><language>eng</language><publisher>United States</publisher><subject>640105 - Astrophysics & Cosmology- Galaxies ; 640106 - Astrophysics & Cosmology- Cosmology ; 645203 - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties ; BOLTZMANN-VLASOV EQUATION ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; COSMOLOGY ; DIFFERENTIAL EQUATIONS ; ELEMENTARY PARTICLES ; EQUATIONS ; FERMIONS ; GALAXY CLUSTERS ; HELICITY ; LEPTONS ; MASS ; MASSLESS PARTICLES ; MATHEMATICAL SPACE ; MISSING MASS ; NEUTRINOS ; PARTICLE PROPERTIES ; PHASE SPACE ; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; SPACE</subject><ispartof>Phys. Rev. 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| ispartof | Phys. Rev. Lett.; (United States), 1979-02, Vol.42 (6), p.407-410 |
| issn | 0031-9007 |
| language | eng |
| recordid | cdi_crossref_primary_10_1103_PhysRevLett_42_407 |
| source | American Physical Society Journals |
| subjects | 640105 - Astrophysics & Cosmology- Galaxies 640106 - Astrophysics & Cosmology- Cosmology 645203 - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties BOLTZMANN-VLASOV EQUATION CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COSMOLOGY DIFFERENTIAL EQUATIONS ELEMENTARY PARTICLES EQUATIONS FERMIONS GALAXY CLUSTERS HELICITY LEPTONS MASS MASSLESS PARTICLES MATHEMATICAL SPACE MISSING MASS NEUTRINOS PARTICLE PROPERTIES PHASE SPACE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS SPACE |
| title | Dynamical Role of Light Neutral Leptons in Cosmology |
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