Properties of Pseudoscalar Flavor- Singlet Mesons from 2+1+1 Twisted Mass Lattice QCD
Date
2012-12-20Author
Ottnad, K
Michael, C
Urbach, C
Zimmermann, F
Cichy, K
Drach, V
Garcia-Ramos, E
Jansen, K
Subject
hep-lat hep-lat hep-ph
Metadata
Show full item recordAbstract
We study properties of pseudoscalar flavour-singlet mesons from Wilson twisted mass lattice QCD with Nf = 2+1+1 dynamical quark flavors. Results for masses are presented at three values of the lattice spacing and light quark masses corresponding to values of the pion mass from 230MeV to 500MeV. We briefly discuss scaling effects and the light and strange quark mass dependence of Mη In addition we present an exploratory study using Osterwalder-Seiler type strange and charm valence quarks. This approach avoids some of the complications of the twisted mass heavy doublet. We present first results for matching valence and unitary actions and a comparison of statistical uncertainties.
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Publisher
Sissa Medialab
Journal
Proceedings of The 30th International Symposium on Lattice Field Theory — PoS(Lattice 2012)
Volume
Part F130497
Pagination
151-
Conference name
The 30th International Symposium on Lattice Field Theory
Start date
2012-06-24
Author URL
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