Summary
Starting from the Cabibbo weak current in the framework of the relativistic quark model an effective current is deduced. It includesSU 3 breaking via the quark mass differences. The following decays are considered: K → μν, π+ → π0eν, K → πμν, K+ → π+π0 and K 0 s → 2π. The computations are parameter-free and agreement with experiment is achieved.
Riassunto
Si desume una corrente efficace a partire dalla corrente debole di Cabibbo nell’ambito del modello relativistico a quark. Essa comprende la rottura della simmetriaSU 3 per mezzo della differenza delle masse dei quark. Si prendono in considerazione i seguenti decadimenti: K → μν, π+ → π0eν, K → πμν, K+ → π+π0 e K 0 s → 2π. Si hanno dei calcoli senza parametri e si ottiene un buon accordo con gli esperimenti.
Реэюме
Исходя иэ слабого тока Кабиббо, в рамках релятивистской модели кварков выводится зффективный ток. При рассмотрении учутывается нарущениеSU 3 череэ раэности масс кварков. Исследуются следуюшие распады K → μν, π+ → π0eν, K → πμν, K+ → π+π0 и K 0 s → 2π. Вычисления не содержат свободных параметров и получается хорощее согласие с зкспериментом.(*) Переведено редакцией.
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Work supported in part by GIFT (Spain).
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Flamm, D., Kielanowski, P. & Sánchez Guillén, J. Weak meson decays in a quark current×current picture with symmetry breaking. Nuov Cim A 25, 16–28 (1975). https://doi.org/10.1007/BF02735607
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DOI: https://doi.org/10.1007/BF02735607