A t-channel isospin analysis of the chew-low plot for [formula omitted] interactions at 5.7 GeV/c

• Published in: Nuclear physics. B Vol. 98; no. 1; pp. 120 - 136
• Main Authors: Strachman, Z., Braun, H., Gerber, J.P., Maurer, G., Michalon, A., Schiby, B., Strub, R.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.1975
• ISSN: 0550-3213; 1873-1562
• DOI: 10.1016/0550-3213(75)90204-7

A new approach to the t-channel isospin analysis of ZN → Z′(Nπ) reactions is presented. This approach, useful for Z = N, N, K − when only five independent sets of data are availables, is used to analyse data of NN → N(Nπ) reactions obtained in a pp → NN π experiment at 5.7 GeV/c and a pd → NNπp s experiment at 5.5 GeV/ c. the t behaviour of the different isospin exchange amplitudes, suggests their exchange mechanism production. The mass spectrum, M πN , of the contributions produced by exchanged isospin I ex = 1, shows enhancements corresponding to N(1490) N(1670) and Δ(1230) isobars, while the mass spectrum for I ex = 0 presents only a large bump at ∼1350 MeV commonly identified as N ∗(1400).