Novel spectral broadening from vector--axial-vector mixing in dense matter

Details Novel spectral broadening from vector--axial-vector mixing in dense matter Novel spectral broadening from vector--axial-vector mixing in dense matter

2009-10-18

arxiv.org/abs/0910.3357v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given by M. Harada at YITP workshop on "Thermal Quantum Field Theory and Their Applications 2009" (September, 3 - 5, 2009

Scientific paper

In this write-up we summarize main result of our recent analysis on the mixing between transverse $\rho$ and $a_1$ mesons through a set of $\omega\rho a_1$-type interactions in dense baryonic matter. In the analysis, we showed that a clear enhancement of the vector spectral function appears below $\sqrt{s}=m_\rho$ for small three-momenta of the $\rho$ meson, and thus the vector spectrum exhibits broadening.

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