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arXiv · 0912.2568

Detecting the QCD phase transition in the next Galactic supernova neutrino burst

Basudeb Dasgupta·Tobias Fischer·Shunsaku Horiuchi·Matthias Liebendoerfer·Alessandro Mirizzi·Irina Sagert·Jurgen Schaffner-Bielich
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Abstract

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 ν_e several hundred milliseconds after the prompt ν_e neutronization burst. We study the observational signatures of that anti ν_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.

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Basudeb Dasgupta, Tobias Fischer, Shunsaku Horiuchi, Matthias Liebendoerfer, Alessandro Mirizzi, Irina Sagert, Jurgen Schaffner-Bielich. 2010-05-30. Detecting the QCD phase transition in the next Galactic supernova neutrino burst. https://doi.org/10.1103/physrevd.81.103005

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