The two-pion spectra for the reaction π^- p -> π^0π^0 n at 38 GeV/c pion momentum and combined analysis of the GAMS, Crystal Barrel and BNL data

Abstract

We perform the K-matrix analysis of meson partial waves with IJ^{PC} =00^{++}, 10^{++}, 02^{++}, 12^{++} basing on GAMS data on π^-p -> π^0π^0 n, ηηn, ηη' n together with BNL data on π^-p -> K\bar K n and Crystal Barrel data on p\bar p (at rest) -> π^0π^0π^0, π^0ηη, π^0π^0η. The positions of the amplitude poles (physical resonances) are determined as well as the positions of the K-matrix poles (bare states) and the values of bare state couplings to two-meson channels. Nonet classification of the determined bare states is discussed.

LaTex, 15 pages and 10 figures

References in corpus (2)

• K-matrix analysis of the K-pi S-wave in the mass region 900-2100 Mev and nonet classification of scalar qqbar-states
• Scalar glueball: analysis of the (IJ^{PC}=00^{++})-wave

Cited by in corpus (8)

• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• The nature of $\sigma$, $\kappa$, $a_0(980)$ and $f_0(980)$
• On the nature of $a_1(1420)$
• The $\sigma$ pole in $J/\psi \to \omega {\pi }^{+}{\pi }^{-}$
• A partial wave analysis of the ${\pi }^0{\pi }^0$ system produced in ${\pi }^{-}p$ charge exchange collisions
• The glueball among the light scalar mesons
• On nature of the scalar-isoscalar mesons in the uniformizing-variable method based on analyticity and unitarity
• Determination of the strangeness contents of light-flavour isoscalars from its production rates in hadronic Z decays measured at LEP