Izvorni znanstveni članak
Production of f0-meson in the process e +e − → ϕf0
Yu. M. Bystritskiy
; Joint Institute for Nuclear Research, Dubna, Russia
M. K. Volkov
; Joint Institute for Nuclear Research, Dubna, Russia
E. A. Kuraev
; Joint Institute for Nuclear Research, Dubna, Russia
E. Bartos
; Institute of Physics, Slovak Academy of Sciences, Bratislava
M. Secanský
; Institute of Physics, Slovak Academy of Sciences, Bratislava
Sažetak
Enigmatic nature of f0(980) meson can be tested in C–τ factory with total energy in e +e − center of mass 3 < √ s < 4 GeV. This facility has the advantage compared with ϕ–factory with √ s = 1.02 GeV where f0(980) properties can be investigated in the process e +e − → γf0(980). The reason of that is strong phase volume suppression ∼ ω 3 of the cross section in the experiments at ϕ–factories. Our approach is based on the analysis of the lowest order loop Feynman diagrams with the strange constituent quark or charged kaon as virtual loop particles. The relative values of the contributions of quark loop and kaon loop are discussed. The differential cross section as well as the estimation of the total one are illustrated numerically.
Ključne riječi
Hrčak ID:
304903
URI
Datum izdavanja:
4.5.2008.
Posjeta: 339 *