Anomalous large angle scattering of. cap alpha. particles on /sup 9/Be and Regge pole model analysis

Journal Article · Mon Apr 01 04:00:00 EST 1985 · Chin. Phys.; (United States)

OSTI ID:5512799

Bingyin, HUANG; Yuanda, WANG; Rongfang, YUAN; Jian, YUAN; Shuming, LI; Xiumin, BAO; Zuxun, SUN

Using multidetector spectrometer angular distributions of elastic scattering and inelastic scattering (2.429 MeV) of ..cap alpha.. particles on /sup 9/Be are measured between 13/sup 0/--177/sup 0/ in steps of 2.5/sup 0/ at E/sub ..cap alpha../ = 23.1 MeV. The angular distribution of the elastic scattering at large angles obviously reveals an anomalous behavior. The experimental data of this work as well as that of the other authors at different energies (E/sub ..cap alpha../ = 23.8 26.6, and 28.0 MeV)= are analyzed by the Regge pole model. Reasonable agreements are obtained for all cases. The result shows that in this excitation energy range for the /sup 9/Be, there exists a resonance sequence, which varies smoothly with the angular momentum l. According to this model, the reaction mechanism of the anomalous process is seen to be a kind of intermediate resonance. Thus, the Regge pole model could be extended to a nucleus as light as /sup 9/Be.

• Research Organization: Institute of Atomic Energy, Academia Sinica, P.O. Box 275, Beijing
• OSTI ID: 5512799
• Journal Information: Chin. Phys.; (United States), Journal Name: Chin. Phys.; (United States) Vol. 5:2; ISSN CHPHD
• Country of Publication: United States
• Language: English

Related Subjects

651325* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
ANGULAR DISTRIBUTION
BERYLLIUM 9 TARGET
CHARGED-PARTICLE REACTIONS
DISTRIBUTION
ELASTIC SCATTERING
ENERGY RANGE
INELASTIC SCATTERING
INTERMEDIATE RESONANCE
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
REGGE POLES
RESONANCE
SCATTERING
TARGETS