Twisted mass chiral perturbation theory for 2+1+1 quark flavours
Münster G, Sudmann T
Research article (journal) | Peer reviewedAbstract
We present results for the masses of pseudoscalar mesons in twisted mass lattice QCD with a degenerate doublet of u and d quarks and a non-degenerate doublet of s and c quarks in the framework of next-to-leading order chiral perturbation theory, including lattice effects up to O(a(2)). The masses depend on the two twist angles for the light and heavy sectors. For maximal twist in both sectors, O(a)-improvement is explicitly exhibited. The mixing of flavour-neutral mesons is also discussed, and results in the literature for the case of degenerate s and c quarks are corrected.
Details about the publication
Journal: Journal of High Energy Physics (J. High Energ. Phys.)
Volume: 11
Issue: 4
Page range: 116null
Status: Published
Release year: 2011 (30/04/2011)
Language in which the publication is written: English
Keywords: Lattice QCD Chiral Lagrangians Lattice Gauge Field Theories lattice qcd formulation
Authors from the University of Münster
| Münster, Gernot |
Projects the publication originates from
Duration: 26/02/2008 - 30/06/2010 | 2nd Funding period Funded by: DFG - Individual Grants Programme Type of project: Individual project |