Evidence for two new0++mesons and a possible scalar decuplet

Autor: T.W. Morris, R. S. Longacre, A. Etkin, K. J. Foley, K. W. Lai, W. A. Mann, Y. Teramoto, A. C. Saulys, W. A. Love, Venetios Polychronakos, J. Marrafino, C. E. Roos, S.J. Lindenbaum, E. D. Platner, C. D. Wheeler, E. H. Willen, R. Merenyi, U. Mallik, Satoshi Ozaki, Michael S. Webster, M. A. Kramer
Rok vydání: 1982
Předmět:
Zdroj: Physical Review D. 25:2446-2450
ISSN: 0556-2821
DOI: 10.1103/physrevd.25.2446
Popis: We present evidence for the existence of two new $I=0$ scalar mesons [${g}_{s}(1240)$ and ${S}^{*\ensuremath{'}}(1730)$] from an amplitude analysis of the reaction ${\ensuremath{\pi}}^{\ensuremath{-}}p\ensuremath{\rightarrow}{K}_{S}^{0}{K}_{S}^{0}n$ at 23 GeV/c. An examination of the mass splittings present shows that neither of these states can be easily assigned to a (near) ideally mixed ${J}^{\mathrm{PC}}={0}^{++}$ nonet. These results are in qualitative agreement with recent theoretical predictions of glucon-glucon bound states.
Databáze: OpenAIRE