The $\varphi (1020)\to {\pi }^0{\pi }^0\gamma$ decay

Abstract

In the SND experiment at VEPP-2M $e^{+}{e}^{-}$ collider the $\varphi (1020)\to {\pi }^0{\pi }^0\gamma$ decay was studied and its branching ratio was measured: $B(\varphi \to {\pi }^0{\pi }^0\gamma )=(1.221\pm 0.098\pm 0.061)\cdot 10^{-4}$. It was shown, that $f_0(980)\gamma$ intermediate state dominates in this decay and the $f_0(980)$-meson parameters were obtained.

15 pages, 5 figure, 4 table, Submitted to Phys. Lett. B

References in corpus (7)

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• Radiative decay of rho^0 and phi mesons in a chiral unitary approach
• First Observation of PHI(1020)--->PI0+PI0+GAMMA Decay
• Evidence of the PHI(1020)--->ETA+PI0+GAMMA Decay
• Investigation of the $e^{+}{e}^{-}\to \omega {\pi }^0\to {\pi }^0{\pi }^0\gamma$ reaction in the energy domain near the $\varphi$-meson
• $s\bar{s}$ dominance of the $f_0$(980) meson
• a_0(980) -> gamma gamma and f_0(980) -> gamma gamma: a consistent description

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