Partial-wave analysis of DM2 Collaboration data in the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>η</mi><mn></mn><mo>(</mo><mn>1430</mn><mo>)</mo><mn></mn></math></span> energy range

J. -E. Augustin; G. Cosme; F. Couchot; F. Fulda; G. Grosdidier; B. Jean-Marie; V. Lepeltier; G. Szklarz; D. Bisello; G. Busetto; A. Castro; L. Pescara; P. Sartori; L. Stanco; Z. Ajaltouni; A. Falvard; J. Jousset; B. Michel; J. C. Montret

doi:10.1103/PhysRevD.46.1951

Partial-wave analysis of DM2 Collaboration data in the $η (1430)$ energy range

J. -E. Augustin, G. Cosme, F. Couchot, F. Fulda, G. Grosdidier, B. Jean-Marie, V. Lepeltier, G. Szklarz, D. Bisello, G. Busetto, A. Castro, L. Pescara, P. Sartori, L. Stanco, Z. Ajaltouni, A. Falvard, J. Jousset, B. Michel, and J. C. Montret

Phys. Rev. D 46, 1951 – Published 1 September 1992

Abstract

A partial-wave analysis (PWA) of the $\frac{J}{ψ \to γ} K_{S}^{0} K^{\pm} π^{\mp}, γ K^{\pm} K^{\mp} π^{0}$ decays in the $\frac{ι}{η} (1430)$ mass range shows a clear pseudoscalar dominance, with two dynamical components both above 1400 ${M e V / c}^{2}$ which proceed via $a_{0} (980) π$ and $K^{*} (892) K$ dynamics, respectively. In addition, a significant contribution from the $1^{+ +} K^{*} (892) K$ wave is contained in the higher part of the mass spectrum. In the PWA of the $\frac{J}{ψ \to γ} η π^{+} π^{-}$ channel a resonant $a_{0} π$ production is observed but slightly below 1400 ${M e V / c}^{2}$ .

Received 16 October 1990

DOI:https://doi.org/10.1103/PhysRevD.46.1951

Authors & Affiliations

J. -E. Augustin, G. Cosme, F. Couchot, F. Fulda, G. Grosdidier, B. Jean-Marie, V. Lepeltier, and G. Szklarz

Laboratoire de l'Accélérateur Linéaire, Institut National de Physique Nucléaire et de Physique des Particules, Centre National de La Recherche Scientifique et Université de Paris-Sud, F-91405 Orsay, France

D. Bisello, G. Busetto, A. Castro, L. Pescara, P. Sartori, and L. Stanco

Dipartimento di Fisica dell'Università di Padova, e Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy

Z. Ajaltouni, A. Falvard, J. Jousset, B. Michel, and J. C. Montret

Laboratoire de Physique Corpusculaire, Institut National de Physique Nucléaire et de Physique des Particules, Centre National de La Recherche Scientifique et Université Blaise Pascal, F-63170 Aubière, France

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Vol. 46, Iss. 5 — 1 September 1992

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Physical Review D

covering particles, fields, gravitation, and cosmology