Coupled-channel-Born-approximation analysis of allowed and forbidden $sup 22$Ne(p,t)$sup 20$Ne transitions

Journal Article · Wed Aug 01 00:00:00 EDT 1973 · Phys. Rev., C, v. 8, no. 2, pp. 609-620

OSTI ID:4431267

Olsen, D K; Udagawa, T; Tamura, T; Brown, R E

The effects of inelastic excitations on the /sup 22/Ne(p,t)/sup 20/Ne reaction are investigated. Differential cross sections at a proton energy of 39.9 MeV were measured for /sup 22/Ne(p,t)/sup 20/Ne transitions to the 0+, 2+, and 4+ members of the ground-state rotational band, to the 2- and 3- members of the excited K/sup / pi / = 2 band; and to the 0+ and 2+ members of the first excited K/sup pi / = 0/sup +/ band. The cross sections to membees of the ground- state band are compared with distorted-wave Born-approximation (DWBA) and coupled- channel-Born-approximation (CCBA) calculations using both pure Nilsson and pairing-mixed Nilsson rotational wave functions. Only the CCBA calculation with pairing provides a reasonable description of the experimentaal data. The effects of multistep processes are found to be as large for neon as for rare=earth nuclei. The shape and relative strengh of the measured cross section to the 2- state, a transition which is forbidden by a direct single-step process, are reproduced well by the CCBA calculation, which allows the excitation of the 2- state by inelastic processes in the entrance and exit channels. (auth)

• Research Organization: Center for Nuclear Studies, University of Texas, Austin, Texas 78712
• NSA Number: NSA-29-001639
• OSTI ID: 4431267
• Journal Information: Phys. Rev., C, v. 8, no. 2, pp. 609-620, Journal Name: Phys. Rev., C, v. 8, no. 2, pp. 609-620; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

*NEON 22-- PROTON REACTIONS
*PROTON BEAMS-- PICKUP REACTIONS
*PROTON REACTIONS-- PICKUP REACTIONS
ANGULAR DISTRIBUTION
COUPLED CHANNEL THEORY
DIFFERENTIAL CROSS SECTIONS
DWBA
MEV RANGE 10-100
N68451* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
20 <= A <= 38--Nuclear Reactions & Scattering
NEON 20
NILSSON- MOTTELSON MODEL
NUCLEAR REACTION KINETICS
PAIRING INTERACTIONS
SPECTRA
TRITONS