Nonperturbative renormalization constants and light quark masses
NAGIOS: RODERIC FUNCIONANDO

Nonperturbative renormalization constants and light quark masses

DSpace Repository

Nonperturbative renormalization constants and light quark masses

Show full item record

View       (200.5Kb)

    
Becirevic, D.; Giménez Gómez, Vicente; Lubicz, V.; Martinelli, Guido; Papinutto, Mauro; Reyes Gámez, Juan; Tarantino, C.
This document is a artículoDate2003

Este documento está disponible también en : http://hdl.handle.net/10550/38979
We present the results of an extensive non-perturbative calculation of the renormalization constants of bilinear quark operators,for the non-perturbatively O(a)-improved Wilson action. The results are obtained at four values of the lattice coupling, by using the RI/MOM and the Ward identities methods. A new non-perturbative,renormalization technique, which is based on the study of the lattice correlation functions at short distance in x-space, is also numerically investigated. We then use our non-perturbative determination of the quark mass renormalization constants to compute the values of the strange and the average up/down quark masses. After performing an extrapolation to the continuum limit, we obtain m<((MS)(s))over bar>ms(2 GeV) = (106 +/- 2 +/- 8) MeV and m<((MS)(l))over bar>(2 GeV) = (4.4 +/- 0.1 +/- 0.4) MeV.

    Becirevic, D. Giménez Gómez, Vicente Lubicz, V. Martinelli, G. Papinutto, Mauro Reyes, J. Tarantino, C. 2003 Nonperturbative renormalization constants and light quark masses Nuclear Physics B-Proceedings Supplements 119 442 445
http://dx.doi.org/10.1016/S0920-5632(03)01580-9

This item appears in the following Collection(s)

Show full item record

Search DSpace

Advanced Search

Browse

Statistics