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Study ofp ̄ p→π 0π 0ηfrom 600 to 1940 MeV/c

Authors
Journal
Physics Letters B
0370-2693
Publisher
Elsevier
Publication Date
Volume
452
Identifiers
DOI: 10.1016/s0370-2693(99)00249-x
Keywords
  • Mesons
  • Resonances
  • Annihilation

Abstract

Abstract Antiproton-proton annihilation into π 0 π 0 η has been studied with incident beam momenta of 0.6 to 1.94 GeV/c. The main aim is to look for resonances formed by p ̄ p and decaying into π 0 π 0 η. Resonances observed are: two 4 ++ resonances with mass and width (M, Γ) at (2044, 208) MeV and (2320±30, 220±30) MeV; three 2 ++ resonances at (2020±50, 220±70) MeV, (2240±40, 170±50) MeV and (2370±50, 320±50) MeV; two 3 ++ resonances at (2000±40, 250±40) MeV and (2280±30, 210±30) MeV; a 1 ++ resonance at (2340±40, 340±40) MeV; and two 2 −+ resonances at (2040±40, 190±40) MeV and (2300±40, 270±40) MeV.

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