Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2009-12-14
Phys.Rev.D81:103005,2010
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
6 pages, 4 figures; matches published version (1 additional figure, added discussion of subsampling at IceCube). Accepted for
Scientific paper
10.1103/PhysRevD.81.103005
Predictions of the thermodynamic conditions for phase transitions at high baryon densities and large chemical potentials are currently uncertain and largely phenomenological. Neutrino observations of core-collapse supernovae can be used to constrain the situation. Recent simulations of stellar core collapse that include a description of quark matter predict a sharp burst of anti \nu_e several hundred milliseconds after the prompt \nu_e neutronization burst. We study the observational signatures of that anti \nu_e burst at current neutrino detectors - IceCube and Super-Kamiokande. For a Galactic core-collapse supernova, we find that signatures of the QCD phase transition can be detected, regardless of the neutrino oscillation scenario. The detection would constitute strong evidence of a phase transition in the stellar core, with implications for the equation of state at high matter density and the supernova explosion mechanism.
Dasgupta Basudeb
Fischer Tobias
Horiuchi Shunsaku
Liebendoerfer Matthias
Mirizzi Alessandro
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