Pseudoscalar singlet physics with staggered fermions



Gregory, Eric B, Irving, Alan C, McNeile, Craig, Miller, Steven and Sroczynski, Zbigniew
(2005) Pseudoscalar singlet physics with staggered fermions. In: XXIIIrd International Symposium on Lattice Field Theory, 2005-7-25 - 2005-7-30, Trinity College, Dublin, Ireland.

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Abstract

We report on progress in measuring disconnected correlators associated with pseudoscalar flavor-singlet mesons. This will eventually allow us to compute the masses of the eta and eta' mesons. Flavor-singlet physics also presents an interesting test of the staggered fermion formulation, as disconnected correlators are sensitive to whether the same action governs both sea quarks and valence quarks. It can also help test the validity of the ``fourth-root trick'' used in unquenched lattice calculations where the number of flavors $N_f

Item Type: Conference or Workshop Item (Paper)
Additional Information: LTH 674; arXiv Number: arXiv:hep-lat/0509193v1. Additional citation information: PoS LAT2005 (2005) 083. Article ID: 026. 6 pages.
Uncontrolled Keywords: pseudoscalar flavor-singlet mesons, eta, eta', mesons, Flavor-singlet physics, valence quarks, fourth-root trick, unquenched lattice calculations
Subjects: ?? QC ??
Divisions: Faculty of Science and Engineering > School of Physical Sciences > Mathematical Sciences
Depositing User: Symplectic Admin
Date Deposited: 18 Aug 2008 10:36
Last Modified: 17 Dec 2022 01:41
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URI: https://livrepository.liverpool.ac.uk/id/eprint/398