SCATTERING OF 27.7 Mev DEUTERONS ON BERYLLIUM AND BORON
Beryllium and natural boron targets were bombarded by 27.7-Mev deuterons. The outgoing particles were analyzed using a scintillation spectrometer. The absolute differential cross section for the elastic scattering was measured. The resulting angular distributions exhibit the usual diffraction pattern. Employing an optical analogy, interaction radii were calculated for the deuteron-nucleus system. The results are: RDN = 4.56 Fermi for beryllium and RDN= 5.65 Fermi for boron. The angular distribution of the inelastic process Be/sup 9/(d,d') Be/suup 9*/ at 2.43 Mev was obtained and fitted with a direct reaction curve, using the theory of Huby and Newns, of l = 2 and alpha = 4.8 Fermi, where l is the angular momentum change and alpha is the interaction radius. The ground state of Be/sup 9/ is 3/2 odd, and results yield for the 2.43-Mev level an odd parity assignment, together with the possible spin values: 1/2, 3/2, 5/2, and 7/2. Better agreement with the experimental results is obtained by adding a theoretical curve of l = 0 with alpha = 4.0 Fermi, implying the presence of deuteron spin-flip. No significant inelastic process was observed using the natural boron target (18.8% B/sup 10/ and 81.2% B/sup 11/). (auth)
- Research Organization:
- Comision Nacional de Energia Atomica, Buenos Aires
- NSA Number:
- NSA-16-023067
- OSTI ID:
- 4822925
- Journal Information:
- Nuclear Phys., Journal Name: Nuclear Phys. Vol. Vol: 32
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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