Composite Scalar Representations of the Electroweak Symmetry Group of the Standard Model
نویسنده
چکیده
Universités Pierre et Marie Curie (Paris 6) et Denis Diderot (Paris 7); Unité associée au CNRS D0 280. Abstract: the scalar composite representations of the electroweak symmetry group of the Standard Model are exhibited in the case of two generations of quarks. The link between 'strong' and 'electroweak' eigenstates is investigated, showing that the quark content commonly attributed to pseudoscalar mesons needs to be modified. After doing so, the mechanism suppressing the K + → π + π 0 decays with respect to K S → π + π − is unraveled, without reference to any model of quark spectator or 'factorization' hypothesis. The same mechanism is shown to suppress K L → ππ decays. Leptonic and semi-leptonic decays are also studied. The mass relations between 'electroweak' eigenstates, verified at better than one percent, m π 3 /m π ± = cos θ c = m χ(1910) /m D ± s are obtained.
منابع مشابه
Chiral scalar fields, custodial symmetry in electroweak SU(2)L × U(1) and the quantization of the electric charge”, Phys
Universités Pierre et Marie Curie (Paris 6) et Denis Diderot (Paris 7); Unité associée au CNRS D0 280. Abstract: I study the scalar representations of the electroweak group of the Standard Model, which is a subgroup of the chiral group U (N) L × U (N) R with N flavours, for N even, with a special emphasis on their chiral properties and on their behaviour by the discrete symmetries P and CP. The...
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