https://doi.org/10.1140/epjc/s10052-009-1121-0
Regular Article - Theoretical Physics
Pion condensation in a dense neutrino gas
Institut für Theoretische Physik, Goethe-Universität Frankfurt, Max-von-Laue-Straße 1, 60438, Frankfurt am Main, Germany
* e-mail: warringa@th.physik.uni-frankfurt.de
Received:
7
May
2009
Revised:
25
June
2009
Published online:
21
August
2009
We argue that using an equilibrated gas of neutrinos it is possible to probe the phase diagram of QCD for finite isospin and small baryon chemical potentials. We discuss this region of the phase diagram in detail and demonstrate that for large enough neutrino densities a Bose–Einstein condensate of positively charged pions arises. Moreover, we show that for non-zero neutrino density the degeneracy in the lifetimes and masses of the charged pions is lifted.
PACS: 12.38.-t –
© Springer-Verlag , 2009
