ISSN - 03702693, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2011, vol. 695, p. 412-418
Measurement of Φ(1020) meson leptonic width with CMD-2 detector at VEPP-2M collider
The Φ(1020) meson leptonic width has been determined from the combined analysis of 4 major decay modes of the resonance (Φ→K+K-,KL 0KS 0,+π+π-π0,ηγs) studied with the CMD-2 detector at the VEPP-2M e+e+e- collider. The following value has been obtained: -(Φ→e+e+e-)=1.235±0.006±0.022 keV. The Φ(1020) meson parameters in four main decay channels have been also recalculated: B(Φ→K+K+K-)=0.493±0.003±0.007, B(Φ→KLKS)=0.336±0.002±0.006, B(Φ→π+π-π0)=0.155±0.002±0.005, B(Φ→ηγ)=0.0138±0.0002±0.0002. © 2010 Elsevier B.V.