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    Isospin breaking effects due to the up-down mass difference in lattice QCD

    We present a new method to evaluate with high precision leading isospin breaking effects due to the small mass difference between the up and down quarks using lattice QCD. Our proposal is applicable in princip...

    G. M. de Divitiis, P. Dimopoulos, R. Frezzotti, V. Lubicz… in Journal of High Energy Physics (2012)