| ホーム > A partial-wave analysis of the neutral 3 pi system produced in the reaction pi /sup -/p to ( pi /sup +/ pi /sup -/ pi /sup 0/)n at 12 and 15 GeV/c |
| Article | |
| Title | A partial-wave analysis of the neutral 3 pi system produced in the reaction pi /sup -/p to ( pi /sup +/ pi /sup -/ pi /sup 0/)n at 12 and 15 GeV/c |
| Author(s) | Corden, M J ; Alexander, G ; Bellamy, E H ; Corbett, I F ; Dagan, S ; Dowell, John D ; Esterling, R J ; Garvey, J ; Gnat, Y ; Green, M G ; Harnew, N ; Jobes, M ; Kenyon, I R ; Lipman, Norman H ; Lister, J B ; Lister, J R ; Litchfield, P J ; Mawson, J ; McMahon, T ; Robertson, A W ; Stacey, B J ; Strong, J A ; Sumorok, K ; Thomas, D H |
| Affiliation | (Univ of Birmingham, Birmingham, UK) |
| Publication | 1978 |
| Imprint | 1977 |
| Number of pages | 31 |
| In: | Nucl. Phys. B 136 (1978) 77-94 |
| DOI | 10.1016/0550-3213(78)90016-0 |
| Subject category | Particle Physics - Theory |
| Abstract | Data on the charge-exchange reaction pi /sup -/p to ( pi /sup +/ pi /sup -/ pi /sup 0/)n have been taken at beam momenta of 12 and 15 GeV /c, using the CERN Omega Multiparticle Spectrometer. A partial-wave analysis has been made of the (3 pi )/sup 0/ system. Both natural and unnatural spin-parity production was observed. The natural parity states can be identified with established resonances. In addition a natural spin-parity enhancement is observed at a mass of about 2 GeV/c /sup 2/ with J/sup P/=4/sup +/ preferred. This effect is called the A /sub 2/*(2030). The unnatural spin-parity production found is consistent with reggeized Deck model predictions. No unambiguous A/sub 1/ or A/sub 3/ production is observed. (15 refs). |