Spontaneous lepton-number violation and de-leptonization in stellar collapse |
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| Authors: | Duane A. Dicus Edward W. Kolb David L. Tubbs |
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| Affiliation: | Center for Particle Theory, the University of Texas, Austin, TX 78712, USA;Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;Applied Theoretical Physics Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA |
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| Abstract: | We consider core collapse in weak interaction models where global lepton-number invariance is spontaneously broken. We find that the initial neutrino number prevents finite temperature restoration of lepton-number conservation. Assuming the lepton-number violating reactions occur rapidly, we show that the neutrino number is driven to a sufficiently small value to allow electron capture reactions to de-leptonize the core, and lead to a high-entropy collapse. |
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