منابع مشابه
Strangeness-changing scalar form factors
We derive expressions for strangeness–changing scalar form factors, which incorporate known theoretical constraints both at low and high energies. Their leading behaviour in the limit of a large number of colours is calculated from the resonance chiral Lagrangian. A set of short-distance constraints on the scalar resonance couplings is obtained, imposing the form factors to vanish at infinite m...
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متن کاملChiral extrapolation of the strangeness changing scalar Kπ form factor
We perform a chiral extrapolation of lattice data on the scalar Kπ form factor and the ratio of the kaon and pion decay constants within Chiral Perturbation Theory to two loops. We determine the value of the scalar form factor at zero momentum transfer, at the Callan-Treiman point and at its soft kaon analog as well as its slope. Results are in good agreement with their determination from exper...
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ژورنال
عنوان ژورنال: Bulletin of the Entomological Society of America
سال: 1987
ISSN: 0013-8754
DOI: 10.1093/besa/33.4.261a