Mixed dark matter from neutrino lasing

Abstract

view Abstract Citations (16) References (26) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Mixed Dark Matter from Neutrino Lasing Starkman, G. D. ; Kaiser, N. ; Malaney, R. A. Abstract We investigate the production of dark matter with non-standard momentum distributions arising from the decay of a relativistic massive neutrino into a lighter fermion and boson H$\rightarrow$F$+$B. We develop the Boltzmann equations for this process, paying particular attention to spin polarisation effects. Such decays can, under certain circumstances, lead to a process of runaway stimulated decays or `neutrino-lasing' resulting, for suitable boson mass, in the production of mixed-dark-matter. We discuss a number of variations on the model; we show how the yield of cold particles can be increased by a simple modification to our original proposal. We discuss the singlet-majoron model as a possible framework for these decays. Publication: The Astrophysical Journal Pub Date: October 1994 DOI: 10.1086/174700 arXiv: arXiv:astro-ph/9312020 Bibcode: 1994ApJ...434...12S Keywords: Boltzmann Transport Equation; Dark Matter; Lasing; Momentum; Neutrinos; Polarization (Spin Alignment); Astronomical Models; Bosons; Cosmic Background Explorer Satellite; Fermions; Nuclear Fusion; Universe; Astronomy; COSMOLOGY: DARK MATTER; COSMOLOGY: LARGE-SCALE STRUCTURE OF UNIVERSE; ELEMENTARY PARTICLES; Astrophysics; High Energy Physics - Phenomenology E-Print: 23 pages, latex, CITA/93/49, available by anon ftp from ftp.cita.utoronto.ca in /cita/nick/neutrinolasing2.ps full text sources arXiv | ADS |