Reanalysis of Hadronic Cross Section Measurements at CMD-2
R.R.Akhmetshin, E.V.Anashkin, A.B.Arbuzov, V.Sh.Banzarov, A.Baratt,, L.M.Barkov, A.V.Bogdan, A.E.Bondar, D.V.Bondarev, S.I.Eidelman, D.A.Epifanov,, G.V.Fedotovich, N.I.Gabyshev, D.A.Gorbachev, A.A.Grebenuk, D.N.Grigoriev,, V.W.Hughes, F.V.Ignatov, V.F.Kazanin, B.I.Khazin
TL;DR
This paper revises previous measurements of specific hadronic cross sections at CMD-2 due to an overestimated luminosity, providing more accurate data for these fundamental processes in particle physics.
Contribution
It presents reanalyzed, more accurate measurements of key e+e- annihilation processes, correcting prior luminosity overestimates and refining cross section data.
Findings
Revised cross section measurements for e+e-->rho->pi+pi-
Updated results for e+e-->omega->pi+pi-pi0
Corrected measurements for e+e-->phi->KLKS
Abstract
The updated results of the precise measurements of the processes e+e-->rho->pi+pi-, e+e-->omega->pi+pi-pi0 and e+e-->phi->KLKS performed by the CMD-2 collaboration are presented. The update appeared necessary due an overestimate of the integrated luminosity in previous analyses.
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