Ks 0Kπ production in tagged and untagged γγ interactions

H. J. Behrend, L. Criegee, J. B. Dainton, J. H. Field, G. Franke, H. Jung, J. Meyer, V. Schröder, G. G. Winter, P. J. Bussey, C. Buttar, A. J. Campbell, D. Hendry, G. McCurrach, J. M. Scarr, I. O. Skillicorn, K. M. Smith, J. Ahme, V. Blobel, W. BrehmM. Feindt, H. Fenner, J. Harjes, J. H. Peters, O. Podobrin, H. Spitzer, W. D. Apel, J. Engler, G. Flügge, D. C. Fries, J. Fuster, P. Gabriel, K. Gamerdinger, P. Grosse-Wiesmann, M. Hahn, U. Hädinger, J. Hansmeyer, J. Knapp, H. Küster, H. Müller, K. H. Ranitzsch, H. Schneider, R. Seufert, J. Wolf, W. de Boer, G. Buschhorn, G. Grindhammer, B. Gunderson, Ch Kiesling, R. Kotthaus, H. Kroha, D. Lüers, H. Oberleck, P. Schacht, S. Scholz, G. Shooshtari, W. Wiedenmann, M. Davier, J. F. Grivaz, J. Haissinski, P. Janot, V. Journé, D. W. Kim, F. Le Diberder, J. J. Veillet, K. Blohm, R. George, M. Goldberg, O. Hamon, F. Kapusta, L. Poggioli, M. Rivoal, G. d'Agostini, F. Ferrarotto, M. Iacovacci, B. Stella, G. Cozzika, Y. Ducros, G. Alexander, A. Beck, G. Bella, J. Grunhaus, A. Klatchko, A. Levy, C. Milsténe

Research output: Contribution to journalArticlepeer-review

Abstract

We have searched for resonance production in the reaction γγ→Ks 0Kπ. No signal was found for the ηc and an upper limit for the radiative with {Mathematical expression} keV (95% c.l.) is obtained. For the glueball candidate η(1440) (previously i) the upper limit {Mathematical expression} is derived. In the tagged data sample resonance formation of a spin 1 state at 1420 MeV is observed, which is absent in the untagged data. The mass and width of this state are consistent with those of the f1(1420); an analysis of decay angular distributions favours positive parity.

Original languageEnglish
Pages (from-to)367-376
Number of pages10
JournalEuropean Physical Journal C
Volume42
Issue number3
DOIs
StatePublished - Sep 1989

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