Chiral extrapolation of SU(3) amplitudes

Journal Article · Mon May 23 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3574997· OSTI ID:21513288

Ecker, Gerhard ^[1]

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1. University of Vienna, Faculty of Physics, Boltzmanngasse 5, A-1090 Wien (Austria)

Approximations of chiral SU(3) amplitudes at NNLO are proposed to facilitate the extrapolation of lattice data to the physical meson masses. Inclusion of NNLO terms is essential for investigating convergence properties of chiral SU(3) and for determining low-energy constants in a controllable fashion. The approximations are tested with recent lattice data for the ratio of decay constants F{sub K}/F{sub {pi}}.

• OSTI ID: 21513288
• Journal Information: AIP Conference Proceedings, Vol. 1343, Issue 1; Conference: QCHS 9: 9. international conference on quark confinement and the hadron spectrum, Madrid (Spain), 30 Aug - 3 Sep 2010; Other Information: DOI: 10.1063/1.3574997; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
APPROXIMATIONS
CHIRAL SYMMETRY
CHIRALITY
CONVERGENCE
EXTRAPOLATION
MASS
MESONS
PARTICLE DECAY
PARTICLE PRODUCTION
QUARKS
BOSONS
CALCULATION METHODS
DECAY
ELEMENTARY PARTICLES
FERMIONS
HADRONS
MATHEMATICAL SOLUTIONS
NUMERICAL SOLUTION
PARTICLE PROPERTIES
SYMMETRY