Near-threshold pion production in pN collisions at CELSIUS

Authors
Zlomanczuk, J Bilger, R Brodowski, W Calen, H Clement, H Dyring, J Ekstrom, C Faldt, G Fransson, K Gustafsson, L Haggstrom, S Hoistad, B Jacewicz, M Johansson, A Johansson, J Johansson, T Khoukaz, A Kilian, K Koch, I Kullander, S Kupsc, A Marciniewski, P Morosov, B Mortsell, A Oelert, W Ruber, RJMY Schuberth, U Shwartz, B Stepaniak, J Sukhanov, A Sundberg, P Turowiecki, A Wagner, GJ Wilhelmi, Z Wilkin, C Zabierowski, J Zernov, A
Citation
J. Zlomanczuk et al., Near-threshold pion production in pN collisions at CELSIUS, ACT PHY P B, 29(11), 1998, pp. 3141-3148
Citations number
9
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
05874254 → ACNP
Volume
29
Issue
11
Year of publication
1998
Pages
3141 - 3148
Database
ISI
SICI code
0587-4254(199811)29:11<3141:NPPIPC>2.0.ZU;2-B
Abstract
The pp --> pp pi(o) and pn --> pp pi(-) reactions have been measured at 310 , 320 and 340 MeV using the CELSIUS proton beam and H-1 and H-2 internal cl uster-jet targets. The pi(o) production at 310 MeV has been fully analyzed and a significant deviation from isotropy found in the pion angular distrib utions. This increases at small excitation energies of the final proton pai r, suggesting that d-wave pion production is important even close to thresh old. Evidence is also found for some P-wave excitation in the final p-p sys tem.