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arXiv · 1311.1052

eta' multiplicity and Witten-Veneziano relation at T>0

D. Klabučar·S. Benić·D. Horvatić·D. Kekez
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Abstract

Recent RHIC results on eta' multiplicity in heavy-ion collisions are of great importance because they clearly signal a partial restoration of U_A(1) symmetry at high temperatures T, and thus provide an unambiguous signature of the formation of a new state of matter. Prompted by these experimental results of STAR and PHENIX collaborations, we discuss and propose the minimal generalization of the Witten-Veneziano relation to finite T.

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D. Klabučar, S. Benić, D. Horvatić, D. Kekez. 2013-11-05. eta' multiplicity and Witten-Veneziano relation at T>0. https://doi.org/10.5506/aphyspolbsupp.6.935

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