A mixed action analysis of η and η′ mesons

We study η and η′ mesons and their mixing angle in a mixed action approach with so-called Osterwalder–Seiler valence quarks on a Wilson twisted mass sea. The gauge configurations have been generated by ETMC for Nf=2+1+1 dynamical quark flavours and for three values of the lattice spacing. The main r...

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Bibliographic Details
Main Authors: Konstantin Ottnad, Carsten Urbach, Falk Zimmermann
Format: Article
Language:English
Published: Elsevier 2015-07-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321315001613