Neutral pion decay into $ν\barν$ in dense skyrmion matter

Details Neutral pion decay into $ν\barν$ in dense skyrmion matter Neutral pion decay into $ν\barν$ in dense skyrmion matter

2005-01-14

arxiv.org/abs/hep-ph/0501117v2

Phys.Rev. D71 (2005) 114001

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, RevTeX, 4 figures. Expanded discussion in light of referee comments

Scientific paper

10.1103/PhysRevD.71.114001

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 in a dense baryonic medium, the process becomes
possible already to leading order in $G_F$ due to the break-down of Lorentz
symmetry in the background medium.

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