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Physics of eta-prime with rooted staggered quarks

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arxiv 1203.2560 v2 pith:CYLUDBED submitted 2012-03-12 hep-lat hep-ph

Stephan Durr This is my paper
classification hep-lathep-ph
keywords anomalyeta-primequarksrootedschwingerstaggeredaxialbecomes
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The quark-mass dependence of the eta in the Schwinger model, which -- like the eta-prime in QCD -- becomes massive through the axial anomaly, is studied on the lattice with N_f=0,1,2. Staggered quarks are used, with a rooted determinant for N_f=1. In the chiral limit the Schwinger mass is reproduced, which suggests that the anomaly is being treated correctly.

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