Partial-wave analysis of DM2 Collaboration data in the. eta. (1430) energy range

Journal Article · Tue Sep 01 04:00:00 EDT 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.1951· OSTI ID:7012099

Augustin, J; Cosme, G; Couchot, F; Fulda, F; Grosdidier, G; Jean-Marie, B; Lepeltier, V; Szklarz, G ^[1]; Bisello, D; Busetto, G; Castro, A; Pescara, L; Sartori, P; Stanco, L ^[2]; Ajaltouni, Z; Falvard, A; Jousset, J; Michel, B; Montret, J C ^[3]

---

1. Laboratoire de l'Accelerateur Lineaire, Institut National de Physique Nucleaire et de Physique des Particules, Centre National de La Recherche Scientifique et Universite de Paris enSud, F-91405 Orsay (France)
2. Dipartimento di Fisica dell'Universita di Padova, e Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova (Italy)
3. Laboratoire de Physique Corpusculaire, Institut National de Physique Nucleaire et de Physique des Particules, Centre National de La Recherche Scientifique et Universite Blaise Pascal, F-63170 Aubiere (France)

A partial-wave analysis (PWA) of the {ital J}/{psi}{r arrow}{gamma}{ital K}{sub {ital S}}{sup 0}{ital K{plus minus}}{pi}{sup {minus plus}}, {gamma}{ital K}{sup {plus minus}}{ital K{minus plus}}{pi}{sup 0} decays in the {iota}/{eta}(1430) mass range shows a clear pseudoscalar dominance, with two dynamical components both above 1400 MeV/{ital c}{sup 2} which proceed via {ital a}{sub 0}(980){pi} and {ital K}{sup *}(892){ital K} dynamics, respectively. In addition, a significant contribution from the 1{sup ++} K{sup *}(892){ital K} wave is contained in the higher part of the mass spectrum. In the PWA of the {ital J}/{psi}{r arrow}{gamma}{eta}{pi}{sup +}{pi}{sup {minus}} channel a resonant {ital a}{sub 0}{pi} production is observed but slightly below 1400 MeV/{ital c}{sup 2}.

• OSTI ID: 7012099
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:5; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662350* -- Decays of Mesons-- (1992-)
662390 -- Electromagnetic Processes & Properties-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
ANGULAR MOMENTUM
BOSONS
CHARMONIUM
COUPLED CHANNEL THEORY
DALITZ PLOT
DECAY
DIAGRAMS
EIGENSTATES
ELEMENTARY PARTICLES
ETA-1440 MESONS
HADRONS
J PSI-3097 MESONS
KAONS
KAONS NEUTRAL
KAONS NEUTRAL SHORT-LIVED
MASS SPECTRA
MASSLESS PARTICLES
MATHEMATICAL SPACE
MESONS
PARITY
PARTIAL WAVES
PARTICLE DECAY
PARTICLE PROPERTIES
PHASE SPACE
PHOTONS
PIONS
PSEUDOSCALAR MESONS
QUARKONIUM
RADIATIVE DECAY
SCATTERING AMPLITUDES
SCATTERPLOTS
SPACE
SPECTRA
SPIN
STRANGE MESONS
STRANGE PARTICLES
VECTOR MESONS