Backward scattering of $alpha$ particles on $sup 12$C and $sup 13$C

Journal Article · Thu Nov 01 04:00:00 EST 1973 · Yadern. Fiz., v. 18, no. 5, pp. 950-953

OSTI ID:4417958

Kuznetsov, B I; Chernov, I P; Ovsyannikova, R E

Angular distributions of alpha particles scattered from /sup 12/C and / sup 13/C nuclei are measured in the 110 deg -178 deg c.m. angular range at energies 18, 19, 22, 24, 25 and 26.6 MeV. A sharp decrease of the cross section at all the energies is observed in scattering of the alpha particles on the / sup 12/C nucleus at angles close to 180 deg . The angular distributions for /sup 13/C in the 18-22-MeV energy range have a shape similar to the shape of the angular distributions for /sup 13/C. At 24 MeV the extrema are in opposite phases and at 25 MeV the backward scattering cross section for /sup 13/C decreases. The observed increase of the backward scattering cross section is explained due to the contribution from a heavy-particle stripping and from decay of intermediate alpha -cluster states given to the elastic part of the exchange interaction. (auth)

• Research Organization: Tomsk Polytechnic Inst., USSR
• NSA Number: NSA-29-008939
• OSTI ID: 4417958
• Journal Information: Yadern. Fiz., v. 18, no. 5, pp. 950-953, Journal Name: Yadern. Fiz., v. 18, no. 5, pp. 950-953; ISSN YAFIA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

*ALPHA REACTIONS-- ELASTIC SCATTERING
*CARBON 12-- ALPHA REACTIONS
*CARBON 13-- ALPHA REACTIONS
ANGULAR DISTRIBUTION
CROSS SECTIONS
MEV RANGE 10- 100
N68351* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
6 <= A <= 19--Nuclear Reactions & Scattering