Light meson physics from maximally twisted mass lattice QCD

By R. Baron, P. Boucaud, P. Dimopoulos, R. Frezzotti, D. Palao, G. Rossi, F. Farchioni, G. Münster, T. Sudmann, V. Gimenez and 10 more. 2009

170 citations recorded by the source corpus.

We present a comprehensive investigation of light meson physics using maximally twisted mass fermions for Nf = 2 mass-degenerate quark flavours. By employing four values of the lattice spacing, spatial lattice extents ranging from 2.0 fm to 2.5 fm and pseudo scalar masses in the range 280 ≲ mPS ≲ 650MeV we control the major systematic effects of our calculation. This enables us to confront our Nf = 2 data with SU(2) chiral perturbation theory and extract low energy constants of the effective chiral Lagrangian and derived quantities, such as the light quark mass.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/66ce086682c519d23c27a5ea677beeb48ff79d37

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In Nuclear and High Energy Physics

Citations in the corpus

Scale Setting in Lattice QCD (2014, unknown): “ f >2 r 0[fm] from r 0[fm] from N f r 0[fm] r 1[fm] from 0:503(10) f K [14] 0:438(14) f K [38] 2+1 0:466(4)a 0:313(2) div. [39] 0:491( 6)c f K [9] 2+1 0:321(5) ¡ [1] 0:485( 9)c fp [9] 0:420(20) fp [40] 2+1 0:470(4) 0:311(2) fp [41, 42] 0:501(15)b m p [43] 0:465(16) m p [44] 2+1 0:492(10)b m W [11”
FLAG Review 2019 (2019, methodology): “450(14) fm by the ETM collaboration [40, 48], using as input fπ and fK and carrying out various continuum extrapolations.”
Review of lattice results concerning low-energy particle physics (2016, methodology): “Today, however, the effects of the charm quark in the sea are more and more systematically considered and most of the new quark-mass results discussed below have been obtained in Nf = 2 + 1 + 1 simulations by ETM [4], HPQCD [14] and FNAL/MILC [5].”
Light Hadron Masses from Lattice QCD (2012, background): “The minimum pion mass one can reach with twisted mass fermions at a given lattice spacing is estimated by (Shindler, 2008) to be ∼ 300 MeV at a ∼ 0.07−0.1 fm which is roughly consistent with recent numerical results (Baron et al., 2010a).”
Review of lattice results concerning low-energy particle physics (2010, methodology): “e percent. We believe it is fair and useful to quote an estimate which covers all three lattice determinations and has an uncertainty of about 1.5%, Fπ F = 1.073(15) our estimate. (63) The ETM result [237] shows that the value obtained with Nf = 2 dynamical ﬂavours is the same within errors. 21 The ”
Light hadrons from lattice QCD with light (u, d), strange and charm dynamical quarks (2010, methodology): “[ 17 ] - reveals a remarkable agreement for the results involving light-quark observables such as the pseudoscalar mass and decay constant or the nucleon mass.”