Study of the 3He–η system in d– p collisions
/ Authors
J. Smyrski, H. Adam, A. Budzanowski, E. Czerwiński, R. Czyżykiewicz, D. Gil, D. Grzonka, M. Janusz, L. Jarczyk, B. Kamys
and 15 more authors
A. Khoukaz, P. Klaja, P. Moskal, W. Oelert, C. Piskor-Ignatowicz, J. Przerwa, J. Ritman, T. Rozek, T. Sefzick, M. Siemaszko, A. Taeschner, P. Winter, M. Wolke, P. Wuestner, W. Zipper
/ Abstract
We have measured excitation functions for the dp → 3HeX, ( X = π 0 , η ) channels near the η production threshold. The data were taken during a slow ramping of the COSY internal deuteron beam scattered on a proton target. The excitation function for the reaction dp → 3He π0 does not show any structure which could originate from the decay of 3He–η bound state. We measured also the threshold excitation curve for the dp → 3HeX process, however, contrary to the SATURNE results, we observe no cusp near the η threshold.
Journal: Nuclear Physics