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I = 0 C = +1 mesons from 1920 to 2410 MeV
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A combined fit is presented to data on pbar-p annihilation in flight to final states eta-pizero-pizero, pizero-pizero, eta-eta, eta-etaprime and piminus-piplus. The emphasis lies in improving an earlier study of eta-pizero-pizero by fitting data at nine pbar momenta simultaneously and with parameters consistent with the two-body channels. There is evidence for all of the I=0, C=+ q-qbar states expected in this mass range. New resonances are reported with masses and widths M,Gamma as follows: JPC = 4^{-+} (2328+-38, Gamma=240+-90) MeV, 1^{++} (1971+-15, 240+-45) MeV, 0^{-+} (2285+-20, 325+-30) MeV, and 0^{-+} (2010 ^{+35}_{-60}, 270+-60) MeV. Errors on the masses and widths of other resonances are also reduced substantially. All states lie close to parallel straight line trajectories of excitation number v. mass squared.
Forward citations
Cited by 1 Pith paper
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Production of high-orbital kaon excited states in the $K^{-}p$ reaction
An effective Lagrangian approach calibrated with one adjustable parameter from data reproduces cross sections for K3*(1780), K2(1820), K2(1770) and K4*(2045) and predicts sizable forward-peaked production for addition...
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