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Experimental study of the e^+e^- opi^+pi^-pi^0 reaction by SND detector in the energy range sqrt{s}=0.42--1.38 GeV | | M. N. Achasov
; K.I.Beloborodov
; A.V.Berdyugin
; A.G.Bogdanchikov
; A.V.Bozhenok
; A.D.Bukin
; D.A.Bukin
; T.V.Dimova
; V.P.Druzhinin
; V.B.Golubev
; A.A.Korol
; S.V.Koshuba
; E.V.Pakhtusova
; E.A.Perevedentsev
; E.E.Pyata
; S.I.Serednyakov
; Yu.M.Shatunov
; V.A.Sidorov
; Z.K.Silagadze
; A.A.Valishev
; A.V.Vasiljev
; | | Date: |
18 Sep 2003 | | Subject: | hep-ex | | Abstract: | The review of the SND results of the $e^+e^- opi^+pi^-pi^0$ process study in the energy range $sqrt[]{s}=0.42$ -- 1.38 GeV at VEPP-2M collider, based on about $2 imes 10^6$ selected events, is presented. The total cross section, parameters of the $
ho$, $omega$, $phi$ resonances, and $omega^prime$, $omega^{primeprime}$ states were obtained. It was found that $
hopi$ and $omegapi^0$ intermediate states describe the reaction dynamics. The experimental data cannot be described by a sum of only $omega$, $phi$, $omega^prime$ and $omega^{primeprime}$ resonances contributions. This can be interpreted as a manifestation of the $
ho o 3pi$ decay, suppressed by $G$-parity, with relative probability $B(
ho o 3pi) = (1.01pm^{0.54}_{0.36}pm 0.034) imes 10^{-4}$. | | Source: | arXiv, hep-ex/0309055 | | Services: | Forum | Review | PDF | Favorites | |
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