Large Breaking of Isospin Symmetry in an Electroweak Su(2)
نویسنده
چکیده
K → ππ decays are investigated in the framework of the SU (2) L × U (1) gauge theory of J = 0 mesons proposed in [1], to which is added an interaction between mesons respecting the two symmetries generally attributed to strong interactions, flavour symmetry and parity conservation. It is shown that the damping of the K + → π + π 0 amplitude with respect to the ones of K s → ππ results from a cancelation between the W and Z gauge bosons. The ratio of the two types of amplitudes is sensitive to the spectrum of electroweak (pseudoscalar and scalar) mass eigenstates, and in particular to the mass of the Higgs boson.
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