Summary
p-wave contributions to K→3π and η→3π decays are studied by means of a vector-meson dominance model. Thep-wave decay rate for Ks→3π is estimated. Dalitz-plot fits using the energy dependence of matrix elements from the above model, andp-wave decay rate estimates using a generalized spurion concept yield reasonably consistent results for thep-wave contribution to these decays.
Riassunto
Si studiano i contributi d'ondaP ai decadimenti K→3π e η→3π tramite il modello del dominio del mesone vettore. Si valuta l'incremento di decadimento di ondap per Ks→3π. Le approssimazioni del diagramma di Dalitz, usando la dipendenza dall'energia delgi elementi di matrice del modello suddetto, e le stime per l'incremento del decadimento d'ondap, usando il concetto di spurione generalizzato, forniscono risultati ragionevolmente consistenti per il contributo, d'ondap a questi decadimenti.
Резюме
С помощью модели преобладания векторного мезона исследуютсяp-волновые вклады в K→3π и η→3π распады. Оценивается интенсивностьp-волно-вого распада для K s →3π. Производится подгонка кривой Далитца, используя энергетическую зависимость матричных элементов от вышеука занной модели. Оценки интенсивностиp-волнового распада, с помощью обобщенной концепции шпуриона, дают разумно согласующиеся результаты дляp-волнового вклада в эти распады.
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Literatur
J. J. Sakurai:Phys. Rev.,156, 1508 (1967).
Y. Hara, Y. Nambu andJ. Schechter:Phys. Rev. Lett.,16, 380 (1966).
See, for example,S. Gasiorowicz:Elementary-Particle Physics (New York, 1966), p. 324;B. Sakita andK. Wali:Phys. Rev.,139, 1355 (1965).
This, as well as all other experimental data, except otherwise noted, is from the Rosenfeld tables,Particle Data Group:Rev Mod. Phys.,41, 109 (1969); and U.C.R.L.-8030.
S. Coleman andD. Glashow:Phys. Rev.,134, B 671 (1964).
J. Graumann, S. Taylor, E. L. Koller, D. Pandoulas, S. Hoffmaster, O. Raths, L. Romano, P. Stamer, A. Kanofsky andU. Mainkar: Stevens Institute of Technology preprint andPhys. Rev. Lett.,23, 737 (1969).
See, for example,L. B. Okun:Weak Interactions of Elementary Particles (Reading, Mass., 1964), p. 182.
A. Neveu andJ. Scherk:Phys. Lett.,27 B, 384 (1968).
S. Okubo andB. Sakita:Phys. Rev. Lett.,11, 50 (1963);K. C. Wali:Phys. Rev. Lett.,9, 120 (1962).
J. Kim: Columbia University preprint (thesis), The decay branching ratios of the η0.
M. Gormley, E. Hyman, W. Lee, T. Nash, J. Peoples, C. Schulz andS. Stein:Phys. Rev. Lett.,21, 402 (1968).
Riazuddin andFayyazuddin:Phys. Rev.,129, 2337 (1968).
Seee.g. G. Källén:Elementary-Particle Physics (Reading, Mass., 1963), p. 197; and references quoted on p. 198 of that textbook.
M. Gell-Mann andA. Rosenfeld:Ann. Rev. Nucl. Sci.,1, 407 (1947).
Seee.g. M. Parkinson:Phys. Rev.,143, 1359 (1966), Appendix III.
J. McCormick andM. Salvadori:Numerical Methods in FORTRAN, Sect.9 (Englewood Cliffs, N. J., 1965).
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Supported in part by the U.S. Atomic Energy Commission.
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Hacinliyan, A.S. Application of a vector-meson dominance model to K3π and η3α decaysdecays. Nuovo Cimento A (1965-1970) 70, 119–135 (1970). https://doi.org/10.1007/BF02819170
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DOI: https://doi.org/10.1007/BF02819170