How well does an LPS analysis separate production mechanisms in π+p interactions at 8 and 16 GeV/c?

• Published in: Nuclear physics. B Vol. 46; no. 1; pp. 1 - 20
• Main Authors: Beaupré, J.V., Deutschmann, M., Grässler, H., Kirk, H., Schulte, R., Gensch, U., Nowak, W.D., Bossen, G.J., Drevermann, H., Kanazirsky, Ch, Propach, E., Rost, M., Böckmann, K., Campbell, J.R., Cocconi, V.T., Kellner, G., Kittel, W., Morrison, D.R.O., Schiller, H., Sotiriou, D., Wahl, H.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.09.1972
• ISSN: 0550-3213; 1873-1562
• DOI: 10.1016/0550-3213(72)90197-6

A longitudinal phase space (LPS) analysis has been performed on the reaction π+p→π+π+π−p at 8 and 16 GeV/c. Special attention has been given to the question of the separation of the various reaction mechanisms. The conclusions are: (i) Dissociation of the pion can be clearly isolated, both at 8 and 16 GeV/c. Baryon dissociation is fairly well separated at 16 GeV/c, but at 8 GeV/c it is strongly contaminated by the reactions δ++ϱ0 and even more by δ++f; (ii) The cross section for diffraction dissociation dominated regions of LPS is constant or even slightly increasing between 8 and 16 GeV/c.