Analyzing power measurements for the {rvec d}+d{r_arrow}d+p+n breakup reaction at 12 MeV
- Duke University and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308 (United States)
- Rudjer Boskovic Institute, Zagreb (Croatia)
- Department of Physics, Georgetown University, Washington, D.C. 20057 (United States)
- University of Tuebingen, Tuebingen (Germany)
- Centro Fisica Nuclear da Universidade de Lisboa, Avenida Professor Gama Pinto, 2, P-1699 Lisbon (Portugal)
- North Carolina Central University, Durham, North Carolina 27707 (United States)
We report the most extensive set of vector iT{sub 11} and tensor T{sub 20} and T{sub 22} analyzing-power data for the {rvec d}+d{r_arrow}d+p+n reaction. Two-particle coincidence data have been measured for six deuteron-proton, three deuteron-neutron and three proton-neutron angle pairs at an incident deuteron energy of 12.0 MeV. These data are compared to impulse-approximation calculations that treat the underlying nucleon-deuteron system exactly and include contributions from both target and projectile breakup processes. This model gives a good description of the analyzing-power and relative cross-section data. We show that the inclusion of nucleon-nucleon P interactions considerably improves the agreement with the spin observables. The disagreement between the data and theoretical predictions show the limitations in our model and the importance of the rescattering processes. We suggest that the d+d three-body breakup process will provide useful information on the nucleon-nucleon force when exact calculations become available. {copyright} {ital 1997} {ital The American Physical Society}
- DOE Contract Number:
- FG02-91ER40619
- OSTI ID:
- 664422
- Journal Information:
- Physical Review, C, Vol. 56, Issue 1; Other Information: PBD: Jul 1997
- Country of Publication:
- United States
- Language:
- English
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