The evolution of young and hot white dwarfs (WDs) is largely dominated by the neutrino energy losses. Thus these stars provide a natural laboratory for testing the theoretical efficiency of the neutrino production processes, standard and not-standard. The present work is focussed on the not-standard energy losses due to a not-zero neutrino magnetic moment. By relying on very recent WD models we find an upper limit for the neutrino magnetic moment of approximate to 5.10(-12) mu(B).
Theoretical Constraints on the Neutrino Magnetic Moment from the White Dwarf Cooling
CASTELLANI, VITTORIO;DEGL'INNOCENTI, SCILLA;PRADA MORONI, PIER GIORGIO
2003-01-01
Abstract
The evolution of young and hot white dwarfs (WDs) is largely dominated by the neutrino energy losses. Thus these stars provide a natural laboratory for testing the theoretical efficiency of the neutrino production processes, standard and not-standard. The present work is focussed on the not-standard energy losses due to a not-zero neutrino magnetic moment. By relying on very recent WD models we find an upper limit for the neutrino magnetic moment of approximate to 5.10(-12) mu(B).File in questo prodotto:
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