Study of antiproton annihilation on neutrons into ωπ−π0

✍ Scribed by C Amsler; A.V Anisovich; C.A Baker; B.M Barnett; C.J Batty; M Benayoun; P Blüm; K Braune; T Case; V Credé; K.M Crowe; M Doser; W Dünnweber; D Engelhardt; M.A Faessler; R.P Haddock; F.H Heinsius; N.P Hessey; P Hidas; D Jamnik; H Kalinowsky; P Kammel; J Kisiel; E Klempt; H Koch; M Kunze; U Kurilla; R Landua; H Matthäy; C.A Meyer; F Meyer-Wildhagen; R Ouared; K Peters; B Pick; M Ratajczak; C Regenfus; J Reinnarth; A Sarantsev; U Strohbusch; M Suffert; J.S Suh; U Thoma; I Uman; S Wallis-Plachner; D Walther; U Wiedner; K Wittmack

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 428 KB
• Volume: 740
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2004.05.004

✦ Synopsis

Data are presented on antiproton neutron annihilation at rest into ωπ -π 0 taken with the Crystal Barrel detector at LEAR (CERN) using a liquid deuterium target. The partial wave analysis shows evidence for at least two ωπ vector resonances above the ρ(770) ground-state. Possible evidence for a third ρ state with a mass around 1180 MeV is discussed. The results are compared to model dependent predictions concerning the nature of the ρ states.