First Observation of PHI(1020)--->PI0+PI0+GAMMA Decay

Details First Observation of PHI(1020)--->PI0+PI0+GAMMA Decay First Observation of PHI(1020)--->PI0+PI0+GAMMA Decay

1998-07-17

arxiv.org/abs/hep-ex/9807016v3

Phys.Lett.B440:442-448,1998

Physics

High Energy Physics

High Energy Physics - Experiment

6 pages, 6 figures, 1 table, Will be published in Phys.Lett.B

Scientific paper

10.1016/S0370-2693(98)01265-9

In the SND experiment at the VEPP-2M electron-positron collider the
PHI(1020)--->PI0+PI0+GAMMA decay was studied. The branching ratio
B(PHI--->PI0+PI0+GAMMA)=(1.14+-0.10+-0.12)x10^{-4} was measured. It was shown,
that the F0(980)GAMMA mechanism dominates in this decay and the 4-quark model
of F0(980) describes our data most consistently.

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