Confirmation of a pi_1^0 Exotic Meson in the ηπ^0 System

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dc.creatorAdams, G. S.
dc.creatorAdams, T.
dc.creatorBar-Yam, Z.
dc.creatorBishop, J. M.
dc.creatorBodyagin, V. A.
dc.creatorBrown, D. S.
dc.creatorCason, N. M.
dc.creatorChasse, M.
dc.creatorChung, S. U.
dc.creatorCummings, J. P.
dc.creatorDemianov, A. I.
dc.creatorDanyo, K.
dc.creatorDowd, J. P.
dc.creatorEugenio, P.
dc.creatorFan, X. L.
dc.creatorGribushin, A. M.
dc.creatorHackenburg, R. W.
dc.creatorHayek, M.
dc.creatorHu, J.
dc.creatorIvanov, E. I.
dc.creatorJoffe, D.
dc.creatorKern, W.
dc.creatorKing, E.
dc.creatorKodolova, O. L.
dc.creatorKorotkikh, V. L.
dc.creatorKostin, M. A.
dc.creatorKrenkel, J.
dc.creatorKuhn, J.
dc.creatorLoSecco, J. M.
dc.creatorLu, M.
dc.creatorMalinina, L. V.
dc.creatorManak, J. J.
dc.creatorNozar, M.
dc.creatorOlchanski, C.
dc.creatorOstrovidov, A. I.
dc.creatorPedlar, T. K.
dc.creatorSarycheva, L. I.
dc.creatorSeth, K. K.
dc.creatorShenhav, N.
dc.creatorShen, X.
dc.creatorShephard, W. D.
dc.creatorSinev, N. B.
dc.creatorStienike, D. L.
dc.creatorSuh, J. S.
dc.creatorTaegar, S. A.
dc.creatorTomaradze, A.
dc.creatorVardanyan, I. N.
dc.creatorWeygand, D. P.
dc.creatorWhite, D. B.
dc.creatorWillutzki, H. J.
dc.creatorWitkowski, M.
dc.creatorYershov, A. A.
dc.date2006-12-25
dc.date2007-07-11
dc.date.accessioned2026-07-07T11:58:21Z
dc.date.available2026-07-07T11:58:21Z
dc.descriptionThe exclusive reaction $π^- p \to ηπ^0 n$, $η\to π^+ π^- π^0$ at 18 GeV$/c$ has been studied with a partial wave analysis on a sample of 23~492 $ηπ^0 n$ events from BNL experiment E852. A mass-dependent fit is consistent with a resonant hypothesis for the $P_+$ wave, thus providing evidence for a neutral exotic meson with $J^{PC} = 1^{-+}$, a mass of $1257 \pm 20 \pm 25$ MeV$/c^2$, and a width of $354 \pm 64 \pm 60$ MeV$/c^2$. New interpretations of the meson exotics in neutral $ηπ^0$ system observed in E852 and Crystal Barrel experiments are discussed.
dc.descriptionp3, rewording the paragraph (at the bottom) about the phase variations. p4, rewording paragrath "The second method ..." . p4, at the bottom of paragrath "The third method ..." added consistent with the results of methods 1 and 2"
dc.identifierhttps://arxiv.org/abs/hep-ex/0612062
dc.identifierhttp://arxiv.org/abs/hep-ex/0612062
dc.identifierPhys.Lett.B657:27-31,2007
dc.identifierdoi:10.1016/j.physletb.2007.07.068
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206193
dc.subjectHigh Energy Physics - Experiment
dc.titleConfirmation of a pi_1^0 Exotic Meson in the ηπ^0 System
dc.typetext

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