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We consider a measurement of exclusive production of scalar χc(0++) meson in the proton–proton collisions at LHC and RHIC and in the proton–antiproton collisions at the Tevatron via χc0→π+π− decay. The corresponding amplitude for exclusive double-diffractive χc0 meson production was obtained within the kt-factorization approach including virtualities of active gluons and the corresponding cross section...
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