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Nonleptonic Interactions of Kaons in the Quark Confinement Model
Author(s) -
Avakyan E. Z.,
Avakyan S. L.,
Efimov G. V.,
Ivanov M. A.
Publication year - 1990
Publication title -
fortschritte der physik/progress of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.2190380803
Subject(s) - physics , meson , electromagnetic mass , particle physics , scalar (mathematics) , quark , color confinement , quark model , scalar meson , strange quark , nuclear physics , quantum electrodynamics , quarkonium , geometry , mathematics
Nonleptonic, electromagnetic decays of K‐mesons and K°–K̄° transition are treated with the effective Hamiltonians with Δ S = 1, 2. Matrix elements of four‐quark operators are calculated in the framework of Quark Confinement Model. The account of the intermediate scalar mesons turns out to allow to explain Δ I = 1/2 rule. The account of intermediate scalar and pseudo‐scalar states leads to experimental value of mass difference of K L °–K S ° mesons. The obtained values for nonleptonic and electromagnetic decay widths as well as mass difference Δ m LS are in good agreement with experimental data.