| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10724354 | Physics Letters B | 2007 | 5 Pages |
Abstract
Total and differential cross sections for the dpâHe3η reaction have been measured near threshold for He3 center-of-mass momenta in the range from 17.1 MeV/c to 87.5 MeV/c. The data were taken during a slow ramping of the COSY internal deuteron beam scattered on a proton target detecting the He3 ejectiles with the COSY-11 facility. The forward-backward asymmetries of the differential cross sections deviate clearly from zero for center-of-mass momenta above 50 MeV/c indicating the presence of higher partial waves in the final state. Below 50 MeV/c center-of-mass momenta a fit of the final state enhancement factor to the data of the total cross sections results in the He3-η scattering length of |a|=4.3±0.5fm.
Related Topics
Physical Sciences and Engineering
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Nuclear and High Energy Physics
Authors
J. Smyrski, H.-H. Adam, A. Budzanowski, E. CzerwiÅski, R. Czyżykiewicz, D. Gil, D. Grzonka, M. Janusz, L. Jarczyk, B. Kamys, A. Khoukaz, P. Klaja, T. Mersmann, P. Moskal, W. Oelert, C. Piskor-Ignatowicz, J. Przerwa, B. Rejdych, W. Zipper,