Summary
The accuracy of the vacuum saturation hypothesis is discussed using the examples of vacuum expectation values of four-quark operators and the parameterB, which determines the short-distance contribution to the\(K^0 - \bar K^0 \) mixing.
Riassunto
Si discute l'accuratezza dell'ipotesi di saturazione nel vuoto usando gli esempi dei valori attesi nel vuoto degli operatori a quattro quark e il parametroB che determina il contributo a breve distanza al mescolamento\(K^0 - \bar K^0 \).
Резюме
Обсуждается точность гипотезы насыщения вакуума, используя примеры для вакуумных значений ожидания для четырех-кварковых операторов и параметраB, который опредедяет вклад на малых расстояниях в\(K^0 - \bar K^0 \) смешивание.
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Chetyrkin, K.G., Pivovarov, A.A. Vacuum saturation hypothesis and QCD sum rules. Nuov Cim A 100, 899–906 (1988). https://doi.org/10.1007/BF02789008
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DOI: https://doi.org/10.1007/BF02789008