Pinched weights and duality violation in QCD sum rules: A critical analysis
NAGIOS: RODERIC FUNCIONANDO

Pinched weights and duality violation in QCD sum rules: A critical analysis

Repositori DSpace/Manakin

Pinched weights and duality violation in QCD sum rules: A critical analysis

Mostra el registre complet de l'element

Visualització       (206.8Kb)

Exportar a Refworks
    
González Alonso, Martín; Pich Zardoya, Antonio Perfil; Prades Hernández, Joaquim
Aquest document és un/a article, creat/da en: 2010
We analyze the so-called pinched weights, that are generally thought to reduce the violation of quark-hadron duality in Finite-Energy Sum Rules. After showing how this is not true in general, we explain how to address this question for the LR correlator and any particular pinched weight taking advantage of our previous work [1], where the possible high-energy behavior of the LR spectral function was studied. In particular we show that the use of pinched weights allows to determine with high accuracy the dimension six and eight contributions in the operator product expansion, O6=(-4.3^[+0.9}_{-0.7})*10^-3 GeV^6 and O8=(-7.2^{+4.2}_{-5.3})*10^-3 GeV^8.

    González Alonso, Martín Pich Zardoya, Antonio Prades Hernández, Joaquim 2010 Pinched weights and duality violation in QCD sum rules: A critical analysis Physical Review D 82 1 014019
http://dx.doi.org/10.1103/PhysRevD.82.014019
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