Single-neutron excitations in neutron-rich {sup 83}Ge and {sup 85}Se

Journal Article · Mon Oct 15 04:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.044302· OSTI ID:21067787

Thomas, J S; Cizewski, J A; Johnson, M S; Jones, K L ^[1]; Arbanas, G ^[2]; Bardayan, D W; Blackmon, J C; Dean, D J; Gross, C J; Liang, J F; Shapira, D; Smith, M S ^[3]; Fitzgerald, R P; Visser, D W ^[4]; Greife, U; Livesay, R J ^[5]; Kozub, R L; Moazen, B H ^[6]; Ma, Z ^[7]; Nesaraja, C D ^[3]

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1. Department of Physics and Astronomy, Rutgers University, New Brunswick, New Jersey 08903 (United States)
2. Nuclear Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
3. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
4. Department of Physics and Astronomy, University of North Carolina at Chapel Hill, North Carolina 27599 (United States)
5. Department of Physics, Colorado School of Mines, Golden, Colorado 80401 (United States)
6. Physics Department, Tennessee Technological University, Cookeville, Tennessee 38505 (United States)
7. Physics Department, University of Tennessee, Knoxville, Tennessee 37996 (United States)

The {sup 2}H({sup 82}Ge,p){sup 83}Ge and {sup 2}H({sup 84}Se,p){sup 85}Se reactions were studied with radioactive beams of {sup 82}Ge and {sup 84}Se at beam energies of E{sub beam}=330 and 380 MeV, respectively. Excitation energies, proton angular distributions, and asymptotic normalization coefficients have been determined for the lowest lying states of {sup 83}Ge and {sup 85}Se. Spectroscopic factors have also been extracted under normal assumptions of the bound-state potential properties in the distorted waves Born approximation analysis. However, the peripheral character of the measurements leads to large uncertainties in this extraction. Shell-model calculations have been performed in the region above {sup 78}Ni, comparing the single-particle properties of the even-Z,N=51 nuclei up to {sup 91}Zr and including {sup 83}Ge and {sup 85}Se. Direct-semidirect neutron capture calculations to {sup 83}Ge and {sup 85}Se have also been performed using the spectroscopic input from these (d,p) reaction measurements.

• OSTI ID: 21067787
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 76; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ASYMPTOTIC SOLUTIONS
BOUND STATE
DEUTERIUM TARGET
DWBA
GERMANIUM 82
GERMANIUM 83
HEAVY ION REACTIONS
MEV RANGE
NEUTRONS
NICKEL 78
POTENTIALS
PROTONS
RADIOACTIVE ION BEAMS
SELENIUM 84
SELENIUM 85
SHELL MODELS
SINGLE-PARTICLE MODEL
SPECTROSCOPIC FACTORS
ZIRCONIUM 91