Dynamical twisted mass fermions with light quarks
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Dynamical twisted mass fermions with light quarks

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Dynamical twisted mass fermions with light quarks

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dc.contributor.author Boucaud, Ph.
dc.contributor.author Dimopoulos, P.
dc.contributor.author Farchioni, F.
dc.contributor.author Frezzotti, R.
dc.contributor.author Giménez Gómez, Vicente
dc.contributor.author Herdoiza, G.
dc.contributor.author Jansen, K.
dc.contributor.author Lubicz, V.
dc.contributor.author Martinelli, Guido
dc.contributor.author McNeile, C.
dc.contributor.author Michael, C.
dc.contributor.author Montvay, I.
dc.contributor.author Palao Palomares, David
dc.contributor.author Papinutto, Mauro
dc.contributor.author Pickavance, J.
dc.contributor.author Rossi, G.C.
dc.contributor.author Scorzato, L.
dc.contributor.author Shindler, A.
dc.contributor.author Simula, S.
dc.contributor.author Urbach, C.
dc.contributor.author Wenger, U.
dc.date.accessioned 2014-09-24T11:19:00Z
dc.date.available 2014-09-24T11:19:00Z
dc.date.issued 2007
dc.identifier.uri http://hdl.handle.net/10550/38955
dc.description.abstract We present results of dynamical simulations of N-f = 2 degenerate Wilson twisted mass quarks at maximal twist in the range of pseudo scalar masses 300 MeV less than or similar to mps; 550 MeV less than or similar to Reaching such small masses was made possible owing to a recently developed variant of the HNIC algorithm. The simulations are performed at one value of the lattice spacing a less than or similar to 0. 1 fun. In order to have O(a) improvement and aiming at small residual O(a(2)) cutoff effects, the theory is tuned to maximal twist by requiring the vanishing of the untwisted quark mass. Precise results for the pseudo scalar decay constant and the pseudo scalar mass are confronted with chiral perturbation theory predictions and the low energy constants F, (l) over bar (3) and (l) over bar (4) are evaluated with small statistical errors.
dc.language.iso eng
dc.relation.ispartof Physics Letters B, 2007, vol. 650, num. 4, p. 304-311
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Boucaud, Ph. Dimopoulos, P. Farchioni, F. Frezzotti, R. Giménez Gómez, Vicente Herdoiza, G. Jansen, K. Lubicz, V. Martinelli, G. McNeile, C. Michael, C. Montvay, I. Palao Palomares, David Papinutto, Mauro Pickavance, J. Rossi, G.C. Scorzato, L. Shindler, A. Simula, S. Urbach, C. Wenger, U. 2007 Dynamical twisted mass fermions with light quarks Physics Letters B 650 4 304 311
dc.subject Física
dc.title Dynamical twisted mass fermions with light quarks
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-09-24T11:19:00Z
dc.identifier.doi http://dx.doi.org/10.1016/j.physletb.2007.04.054
dc.identifier.idgrec 041518

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