NAGIOS: RODERIC FUNCIONANDO

Low-energy couplings of QCD from topological zero-mode wave functions

Repositori DSpace/Manakin

Valencià Castellano

Inici
Investigació
e-prints
22 - Física
Visualitza element

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

Low-energy couplings of QCD from topological zero-mode wave functions

Mostra el registre complet de l'element

Visualització (337.2Kb)

Giusti, L.; Hernández Gamazo, Pilar; Laine, Mikko; Weisz, P.; Wittig, Hartmut

Aquest document és un/a article, creat/da en: 2004

By matching 1/m^2 divergences in finite-volume two-point correlation functions of the scalar or pseudoscalar densities with those obtained in chiral perturbation theory, we derive a relation between the Dirac operator zero-mode eigenfunctions at fixed non-trivial topology and the low-energy constants of QCD. We investigate the feasibility of using this relation to extract the pion decay constant, by computing the zero-mode correlation functions on the lattice in the quenched approximation and comparing them with the corresponding expressions in quenched chiral perturbation theory.

Veure al catàleg Trobes