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FIZIKA B 17 (2008) 2, 363 - 368
 
PRODUCTION OF f0-MESON IN THE PROCESS e+e- ® jf0
YU. M. BYSTRITSKIYa, M. K. VOLKOVa, E. A. KURAEVa,
E. BARTOSb and M. SECANSKÝb
aJoint Institute for Nuclear Research, Dubna, Russia
bInstitute of Physics, Slovak Academy of Sciences, Bratislava
E-mail addresses: bystr@theor.jinr.ru,
volkov@theor.jinr.ru,
kuraev@theor.jinr.ru,
3rd@jinr.ru
Received 23 October 2007; Accepted 20 February 2008
Online 20 June 2008
Enigmatic nature of f0(980) meson can be tested in C-t
factory with total energy in e+e- center of mass 3 < Ös < 4 GeV. This facility has the advantage compared with
j-factory with Ös = 1.02 GeV where f0(980) properties can be investigated in the
process e+e-®gf0(980). The reason of that is strong phase volume suppression
~ w3 of the cross section in the experiments at j-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.
PACS numbers: 13.60 Le
UDC 539.126
Keywords: meson, NJL model
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