scholarly journals Chiral extrapolation of the σ and ρ mesons from dispersion relations and Chiral Perturbation Theory

2008 ◽  
Author(s):  
G. Ríos ◽  
A. Gómez Nicola ◽  
C. Hanhart ◽  
J. R. Peláez ◽  
George Rupp ◽  
...  
Keyword(s):  
Perturbation Theory ◽  
Chiral Perturbation Theory ◽  
Dispersion Relations ◽  
Chiral Perturbation ◽  
Chiral Extrapolation

scholarly journals Chiral Extrapolations of light resonances from dispersion relations and Chiral Perturbation Theory

2009 ◽  
Author(s):  
Guillermo Rios ◽  
Ángel Gómez Nicola ◽  
Christoph Hanhart ◽  
José Ramón Peláez Sagredo
Keyword(s):  
Perturbation Theory ◽  
Chiral Perturbation Theory ◽  
Dispersion Relations ◽  
Chiral Perturbation

scholarly journals STUDYING κ MESON WITH A MILC FINE LATTICE

2013 ◽  
Vol 28 (15) ◽  
pp. 1350059 ◽  
Author(s):  
ZIWEN FU
Keyword(s):  
Perturbation Theory ◽  
Numerical Simulations ◽  
Chiral Perturbation Theory ◽  
Lattice Spacing ◽  
Chiral Perturbation ◽  
Chiral Extrapolation ◽  
Point To Point ◽  
Experimental Values

Using the lattice simulations we measure the point-to-point κ correlators in the Asqtad-improved staggered fermion formulation with the sufficiently light u/d quark. We then analyze these correlators using the rooted staggered chiral perturbation theory (rSχPT). After the chiral extrapolation, we obtain the physical κ mass with 835±93 MeV , which is in agreement with the recent BES experimental values. These numerical simulations are carried out with the MILC Nf = 2+1 flavor fine gauge configurations at a lattice spacing of a ≈0.09 fm .

Sign in / Sign up

Export Citation Format

Share Document