Finite-Size scaling of vector and axial current correlators
NAGIOS: RODERIC FUNCIONANDO

Finite-Size scaling of vector and axial current correlators

Repositori DSpace/Manakin

Finite-Size scaling of vector and axial current correlators

Mostra el registre complet de l'element

Visualització       (218.7Kb)

Exportar a Refworks
    
Damgaard, P.H.; Hernández Gamazo, Pilar; Jansen, K.; Laine, Mikko; Lellouch, Laurent
Aquest document és un/a article, creat/da en: 2003
Using quenched chiral perturbation theory, we compute the long-distance behaviour of two-point functions of flavour non-singlet axial and vector currents in a finite volume, for small quark masses, and at a fixed gauge-field topology. We also present the corresponding predictions for the unquenched theory at fixed topology. These results can in principle be used to measure the low-energy constants of the chiral Lagrangian, from lattice simulations in volumes much smaller than one pion Compton wavelength. We show that quenching has a dramatic effect on the vector correlator, which is argued to vanish to all orders, while the axial correlator appears to be a robust observable only moderately sensitive to quenching.

    Damgaard, P.H. Hernández Gamazo, Pilar Jansen, K. Laine, Mikko Lellouch, Laurent 2003 Finite-Size scaling of vector and axial current correlators Nuclear Physics B 656 1-2 226 236
http://dx.doi.org/10.1016/S0550-3213(03)00117-2
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

Aquest element apareix en la col·lecció o col·leccions següent(s)

Mostra el registre complet de l'element

Cerca a RODERIC

Cerca avançada

Visualitza

Estadístiques