A new method, recently introduced for the lattice calculation of electromagnetic and isospin corrections to weak decays [1], is discussed. Using this method, for the first time, the electromagnetic effects in the leptonic decay rates pi(-) -> mu(-) (nu) over bar (mu) K- -> mu(-) (nu) over bar (mu) and have been evaluated in lattice QCD. Preliminary results for the electromagnetic corrections to charged (neutral) pion and kaon masses and leptonic decay rates are presented.
Electromagnetic Corrections to Hadronic Decays from Lattice QCD / Lubicz, V.; Martinelli, G.; Sachrajda, C. T.; Sanfilippo, F.; Simula, S.; Tantalo, N.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 800:1(2017), p. 012005. (Intervento presentato al convegno 10th International Conference on Kaon Physics, KAON 2016 tenutosi a University of Birmingham, gbr) [10.1088/1742-6596/800/1/012005].
Electromagnetic Corrections to Hadronic Decays from Lattice QCD
Martinelli G.;
2017
Abstract
A new method, recently introduced for the lattice calculation of electromagnetic and isospin corrections to weak decays [1], is discussed. Using this method, for the first time, the electromagnetic effects in the leptonic decay rates pi(-) -> mu(-) (nu) over bar (mu) K- -> mu(-) (nu) over bar (mu) and have been evaluated in lattice QCD. Preliminary results for the electromagnetic corrections to charged (neutral) pion and kaon masses and leptonic decay rates are presented.File | Dimensione | Formato | |
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