Study of pN annihilations into five pions

✍ Scribed by U Thoma

• Book ID: 104333610
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 262 KB
• Volume: 675
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(00)00217-7

✦ Synopsis

The preliminary analysis of four high statistic 57r data sets taken with the Crystal Barrel detector shows that at least two scalar states are needed to describe the data, the £(1370) with m = 1395 q-40MeV/c 2, F = 275 4-55MeV/c 2 and the £(1500) with mass and width compatible with previous findings. The first one decays dominantely into cra and pp, the second one into ~r~r and ~r*(1300)r. In addition to the dominant scalar intensity the ~r*(1300) plays an important role in the 5or-dynamics. We found a mass of m = 1375 5= 40 MeV/c 2 and a width of F = 268 4-50 MeV/c 2 with a dominat decay into pTr. The (~r~r)sTr decay of the ~r*( 1300) is less than 15% of its p~r decay as expected for a radial excitation of the or,