Neutral mesons and disconnected diagrams in Twisted Mass QCD

Michael, Chris and Urbach, Carsten (2007) Neutral mesons and disconnected diagrams in Twisted Mass QCD. In: The XXV International Symposium on Lattice Field Theory, July 30 - August 4 2007, Regensburg, Germany.

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Abstract

We evaluate properties of neutral mesons in Nf=2 dynamical simulations of TMQCD at maximal twist. The pion is explored - establishing the size of the isospin splitting (an order a^2 effect). We investigate the eta' (the Nf=2 flavour singlet pseudoscalar meson) and neutral rho and scalar mesons. We show that disconnected diagrams can be evaluated very efficiently in TMQCD using variance reduction methods.

Item Type: Conference or Workshop Item (Paper)
Additional Information: LTH - 761; arXiv Number: arXiv:0709.4564v1. Additional citation information: PoS(LATTICE 2007)122. Conference ID: LATTICE 2007 Article ID: 122. 7 pages.
Uncontrolled Keywords: TMQCD; isospin splitting; pseudoscalar meson; scalar mesons; flavour singlet
Subjects: Q Science > QC Physics
Divisions: ?? dep_math ??
Depositing User: Adina Dudau
Date Deposited: 15 Aug 2008 13:57
Last Modified: 09 Oct 2014 11:39
URI: http://repository.liv.ac.uk/id/eprint/351

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