Aspects of model dependence of 𝜂′– 𝜂 complex treated by going beyond the isospin limit (CROSBI ID 287460)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Horvatić, Davor ; Kekez, Dalibor ; Klabučar, Dubravko
engleski
Aspects of model dependence of 𝜂′– 𝜂 complex treated by going beyond the isospin limit
Exploring the extent of model dependence, we study effects of certain Ansätze for the T-dependence of the correction term in the QCD topological susceptibility. The one producing unwanted effects on results at T > 0 in the η'-η complex in the usual limit of isospin symmetry, is largely cured from its peculiar behavior and brought into agreement with the other, when breaking of isospin symmetry is allowed and the realistic quark mass ratio m_u/m_d = 0.50 is adopted.
η' and η mesons T-dependence QCD topological susceptibility isospin symmetry
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Podaci o izdanju
56
2020.
257
5
objavljeno
1434-6001
1434-601X
10.1140/epja/s10050-020-00254-1