%0 Generic %1 Blossier2010Ghostgluon %A Blossier, B. %A Ph, %A De soto, F. %A Morenas, V. %A Gravina, M. %A Pène, O. %A Rodr\'ıguez-Quintero, J. %D 2010 %K alphas, singapore2013 %T Ghost-gluon coupling, power corrections and \$Łambda\_MS\$ from twisted-mass lattice QCD at Nf=2 %U http://arxiv.org/abs/1005.5290 %X We present results concerning the non-perturbative evaluation of the ghost-gluon running QCD coupling constant from \$N\_f=2\$ twisted-mass lattice calculations. A novel method for calibrating the lattice spacing, independent of the string tension and hadron spectrum is presented with results in agreement with previous estimates. The value of \$Łambda\_MS\$ is computed from the running of the QCD coupling only after extrapolating to zero dynamical quark mass and after removing a non-perturbative OPE contribution that is assumed to be dominated by the dimension-two \$\VEVA^2\$ gluon condensate. The effect due to the dynamical quark mass in the determination of \$Łams\$ is discussed.

@misc{Blossier2010Ghostgluon, abstract = {We present results concerning the non-perturbative evaluation of the ghost-gluon running QCD coupling constant from \$N\_f=2\$ twisted-mass lattice calculations. A novel method for calibrating the lattice spacing, independent of the string tension and hadron spectrum is presented with results in agreement with previous estimates. The value of \$\Lambda\_{\overline{MS}}\$ is computed from the running of the QCD coupling only after extrapolating to zero dynamical quark mass and after removing a non-perturbative OPE contribution that is assumed to be dominated by the dimension-two \$\VEV{A^2}\$ gluon condensate. The effect due to the dynamical quark mass in the determination of \$\Lams\$ is discussed.}, added-at = {2019-02-23T22:09:48.000+0100}, archiveprefix = {arXiv}, author = {Blossier, B. and Ph and De soto, F. and Morenas, V. and Gravina, M. and P\`{e}ne, O. and Rodr\'{\i}guez-Quintero, J.}, biburl = {https://www.bibsonomy.org/bibtex/22bec172224b77d20bfe0adc7a254bf25/cmcneile}, citeulike-article-id = {12130529}, citeulike-linkout-0 = {http://arxiv.org/abs/1005.5290}, citeulike-linkout-1 = {http://arxiv.org/pdf/1005.5290}, day = 28, eprint = {1005.5290}, interhash = {7cbdf892dd6dba3df2fa62a82cc6145b}, intrahash = {2bec172224b77d20bfe0adc7a254bf25}, keywords = {alphas, singapore2013}, month = may, posted-at = {2013-03-09 13:53:15}, priority = {2}, timestamp = {2019-02-23T22:15:27.000+0100}, title = {Ghost-gluon coupling, power corrections and \$\Lambda\_{\overline {\rm MS}}\$ from twisted-mass lattice QCD at Nf=2}, url = {http://arxiv.org/abs/1005.5290}, year = 2010 }