Isospin is an almost exact symmetry of strong interactions and the corrections to the isosymmetric limit are, in general, at the percent level. For several hadronic quantities, such as pseudoscalar meson masses or the kaon leptonic and semileptonic decay rates, these effects are of the same order of magnitude of the errors quoted in nowadays lattice calculations and cannot be neglected any longer. In this contribution I discuss some recent results for the pseudoscalar meson spectrum obtained by the RM123 Collaboration including isospin breaking corrections in first-principles lattice simulations.
Giusti, D. (2018). Leading isospin-breaking effects on the lattice. In Proceedings, 16th Incontri di Fisica delle Alte Energie (IFAE 2017) : Trieste, Italia, April 19-21, 2017. VIA SARAGOZZA, 12, I-40123 BOLOGNA, ITALY : Societa Italiana di Fisica [10.1393/ncc/i2018-18043-6].
Leading isospin-breaking effects on the lattice
Giusti D.
2018-01-01
Abstract
Isospin is an almost exact symmetry of strong interactions and the corrections to the isosymmetric limit are, in general, at the percent level. For several hadronic quantities, such as pseudoscalar meson masses or the kaon leptonic and semileptonic decay rates, these effects are of the same order of magnitude of the errors quoted in nowadays lattice calculations and cannot be neglected any longer. In this contribution I discuss some recent results for the pseudoscalar meson spectrum obtained by the RM123 Collaboration including isospin breaking corrections in first-principles lattice simulations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
