π0π0 scattering amplitudes and phase shifts obtained by the π−p charge exchange process

✍ Scribed by Kunio Takamatsu; A.M Ma; K Takamatsu; M.Y Ishida; S Ishida; T Ishida; T Tsuru; H Shimizu

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 195 KB
• Volume: 675
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(00)00272-4

✦ Synopsis

The results of the analysis of the 7r%r ° scattering amplitudes obtained with ~r-p charge exchange reaction, 7r-p --~ 7r°Tr°n, data at 9 GeV/c are presented. The 7r%r ° scattering amplitudes show clear f0(1370) and f2(1270) signals in the S and D waves, respectively. The ~r%r ° scattering phase shifts have been obtained below K_~ threshold and been analyzed by the Interfering Amplitude method with introduction of negative background phases. The results show a S wave resonance, cr. Its Breit-Wigner parameters are in good agreement with those of our previous analysis on the ¢r+~r -phase shift data.