A partial wave analysis of the $π^- π^- π^+$ and $π^- π^0 π^0$ systems and the search for a $J^{PC}=1^{-+}$ meson

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dc.creatorDzierba, A. R.
dc.creatorMitchell, R.
dc.creatorScott, E.
dc.creatorSmith, P.
dc.creatorSwat, M.
dc.creatorTeige, S.
dc.creatorSzczepaniak, A.
dc.creatorDenisov, S. P.
dc.creatorDorofeev, V.
dc.creatorKachaev, I.
dc.creatorLipaev, V.
dc.creatorPopov, A.
dc.creatorRyabchikov, D. I.
dc.creatorBodyagin, V.
dc.creatorDemianov, A.
dc.date2005-10-25
dc.date2005-10-25
dc.date.accessioned2026-07-07T10:28:35Z
dc.date.available2026-07-07T10:28:35Z
dc.descriptionA partial wave analysis (PWA) of the $π^- π^- π^+$ and $π^- π^0 π^0$ systems produced in the reaction $π^- p \to (3π)^-p$ at 18 GeV/$c$ was carried out using an \emph{isobar} model assumption. This analysis is based on 3.0M $π^- π^0 π^0$ events and 2.6M $π^- π^-π^+$ events and shows production of the $a_1(1260)$, $a_2(1320)$, $π_2(1670)$ and $a_4(2040)$ resonances. Results of detailed studies of the stability of partial wave fits are presented. An earlier analysis of 250K $π^- π^- π^+$ events from the same experiment showed possible evidence for a $J^{PC}=1^{-+}$ exotic meson with a mass of $\sim$1.6 GeV/$c^2$ decaying into $ρπ$. In this analysis of a higher statistics sample of the $(3π)^-$ system in two charged modes we find no evidence of an exotic meson.
dc.descriptionSubmitted to Physical Review D
dc.identifierhttps://arxiv.org/abs/hep-ex/0510068
dc.identifierhttp://arxiv.org/abs/hep-ex/0510068
dc.identifierPhys.Rev.D73:072001,2006
dc.identifierdoi:10.1103/PhysRevD.73.072001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177498
dc.subjectHigh Energy Physics - Experiment
dc.titleA partial wave analysis of the $π^- π^- π^+$ and $π^- π^0 π^0$ systems and the search for a $J^{PC}=1^{-+}$ meson
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