Tensor analyzing powers and energy dependence of the {sup 7}Li+{sup 16}O interaction

Journal Article · Thu Feb 15 04:00:00 EST 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.024612· OSTI ID:20991025

Rudchik, A T; Rudchik, A A; Chesnokova, V D; Kyryanchuk, V M; Ponkratenko, O A ^[1]; Kemper, K W; Crisp, A M; Marechal, F; Roeder, B T ^[2]; Momotyuk, O A ^[1]; Rusek, K ^[3]

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1. Institute for Nuclear Research, Prospect Nauki 47, 03680 Kyiv (Ukraine)
2. Physics Department, Florida State University, Tallahassee, Florida 32306-4350 (United States)
3. Institute for Nuclear Studies, A. Soltan Hoza 69, PL-00-681 Warsaw (Poland)

The differential cross section angular distribution and the analyzing powers {sup T}T{sub 10},{sup T}T{sub 20}, for {sup 7}Li+{sup 16}O elastic scattering were measured at E{sub lab}({sup 7}Li(vector sign)) = 42 MeV. These and previously published {sup 7}Li+{sup 16}O scattering data measured at E{sub c.m.} = 6.26-34.78 MeV were analyzed with the optical model and coupled-reaction channels (CRC) methods to determine the energy dependence of the parameters of the scattering potential. It was found that the optical model potentials are energy independent for {sup 7}Li laboratory bombarding energies above 28 MeV, except for a slight decrease in the real potential strength as the bombarding energy increases. The calculations presented show that the tensor analyzing power {sup T}T{sub 20} arises from a coherent combination of contributions from the ground-state reorientation and central scattering potential. The energy-dependent CRC potentials were shown to describe the data for the {sup 16}O({sup 7}Li,t){sup 20}Ne reaction.

• OSTI ID: 20991025
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 75; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ENERGY DEPENDENCE
GROUND STATES
LITHIUM 7
MEV RANGE 10-100
NEON 20
OPTICAL MODELS
OXYGEN 16
POLARIZATION-ASYMMETRY RATIO
POTENTIALS