Phys. Rev. D 71, 114001 (2005) - Neutral pion decay into $\ensuremath{\nu}\overline{\ensuremath{\nu}}$ in dense Skyrmion matter

Neutral pion decay into $ν \bar{ν}$ in dense Skyrmion matter

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

Phys. Rev. D 71, 114001 – Published 6 June 2005

Abstract

We study the weak decay of the neutral pion to a neutrino-antineutrino pair, $π^{0} \to ν \bar{ν}$ , 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.

Received 16 January 2005

DOI:https://doi.org/10.1103/PhysRevD.71.114001

©2005 American Physical Society

Authors & Affiliations

Alexander C. Kalloniatis^1,*, Jonathan D. Carroll^1,†, and Byung-Yoon Park^1,2,‡

¹CSSM, University of Adelaide, Adelaide 5005, Australia
²Department of Physics, Chungnam National University, Daejon 305-764, Korea

^*Electronic address: akalloni@physics.adelaide.edu.au
^†Electronic address: jcarroll@physics.adelaide.edu.au
^‡Electronic address: bypark@cnu.ac.kr

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Issue

Vol. 71, Iss. 11 — 1 June 2005

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