Implications of the glueball q anti-q filter on the 1++ nonet

The application of our glueball-qqbar filter to the centrally produced KKbarpi system shows that the f1(1285) and f1(1420) have the same behaviour/ namely consistent with the f1(1420) being the partner to the f1(1285) in the 3P1 nonet of axial mesons. We determine a flavour singlet-octet mixing angle of approximately 50 degrees for this nonet and highlight that the existence of the supposed f1(1510) needs confirmation.

Note:

21 pages, Latex, 5 Figures

p p: exclusive reaction
pi p: exclusive reaction
central region
K: pair production
glueball: hadroproduction
f1(1285): radiative decay
f1(1420)
f1(1510)
axial-vector meson: multiplet
mixing angle: singlet

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