Neutral pion decay into $\nu \bar{\nu }$ in dense skyrmion matter

Alexander C. Kalloniatis, Jonathan D. Carroll, Byung-Yoon Park

We study the weak decay of the neutral pion to a neutrino-antineutrino pair, ${\pi }^0\to \nu \bar{\nu }$, in the Skyrme model. In baryon free-space the process is forbidden by helicity while i…