INVESTIGATION OF EXCITED STATES IN Be$sup 8$ BY ALPHA-PARTICLE SCATTERING FROM He

Journal Article · Sat Feb 01 04:00:00 EST 1958 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.109.850· OSTI ID:4310559

Nilson, R; Jentschke, W K; Briggs, G R; Kerman, R O; Snyder, J N

Partial phase shifts have been deduced from the data on the scattering of alpha particles (12.3 to 22.9 Mev) from He, reported in an earlier publication. The interpretation of the phase shifts is as follows: The monotonic decrease of the S-wave phase shift throughout the energy range investigated indicates no broad S states in Be/sup 8/ for excitations between 0.5 and 11.45 Mev. The D-wave phase-shift energy dependence clearly indicates the 2.9-Mev 2/ sup +/ state in Be/sup 8/ The G-wave phase shift shows a broad 4/sup +/ state in the neighborhood of 11 Mev with a reduced width of about 2 Mev. The I-wave phase shift is first observed at 20 Mev and is positive. Moderate success has been achieved in explaining the scattering results in terms of Haefner's alphaparticle model of Be/sup8/. (auth)

• Research Organization: Univ. of Illinois, Urbana
• NSA Number: NSA-12-006156
• OSTI ID: 4310559
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 109; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALPHA BEAMS
ALPHA PARTICLES
BERYLLIUM 8
ENERGY LEVELS
ENERGY RANGE
EXCITATION
HELIUM
LIFETIME
MEV RANGE
NUCLEAR MODELS
NUCLEAR THEORY
PARITY
PHYSICS
SPECTRAL SHIFT
SPIN
WIDTH