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Pion and Eta Strings

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arxiv hep-ph/9711452 v1 pith:NNDW5CLC submitted 1997-11-24 hep-ph

Xinmin Zhang , Tao Huang , Robert H. Brandenberger (Institute for High Energy Physics , Academia Sinica , Brown University) This is my paper · ORCID
classification hep-ph
keywords pionpion-stringstringsunstableallowedanomalousassociatedbreakdown
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abstract

In this paper we construct a string-like classical solution, the pion-string, in the linear sigma model. We then study the stability of the pion-string, and find that it is unstable in the parameter space allowed experimentally. We also speculate on the existance of an unstable eta-string, associated with spontaneous breakdown of the anomalous $U_A(1)$ symmetry in QCD at high temperatures. The implications of the pion and eta strings for cosmology and heavy ion collisions are briefly mentioned.

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Cited by 1 Pith paper

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  1. Baryonic vortices in rotating nuclear matter

    hep-ph 2026-03 unverdicted novelty 7.0 of 10

    Previously discarded global pion vortices become finite-energy and energetically competitive in rotating nuclear matter because causality bounds the system size.

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