Distorted-wave Born-approximation analysis of the $sup 42$Ca(p,$alpha$$)$$sup 39$K reaction using an improved form factor
Journal Article
·
· Phys. Rev., C, v. 8, no. 5, pp. 1757-1769
OSTI ID:4338904
An improved method of calculating the fonn factor for the distorted-wave Born-approximation treatment of (p, alpha ) reactions is described that incorporates explicitiy the nuclear structure information. The improvement over earlier treatment of the (p, alpha ) reactions is achieved by carrying out a transformation to center-of-mass and internal coordinates of the transferred nucleons, whose individuai wave functions are calculated in a Woods-Saxon potential. The formalism is applied to an analysis of the reaction performed at a proton bombarding energy of 40.2 MeV. Relative proton spectroscopic factor are deduced for the relatively pure single-hole states at 0.0 (3/2/sup +/) and 2.52 (1/2/sup +/) MeV in /sup 39/K. Good agreement with the pro ton spectroscopic factors from the /sup 40/Ca(d, /sup 3/He)/sup 39/K reaction is ach ieved. The 5/ 2/sup +/ states in /sup 39/K whose structure is largely unknown contain components important to the (p, alpha ) reaction, but not to the (d, /sup 3/He) reaction, as evidenced by their relatively stronger excitation in the (p, alpha ) reaction. (auth)
- Research Organization:
- Cyclotron Laboratory, Department of Physics, University of Manitoba, Winnipeg, Canada
- NSA Number:
- NSA-29-022922
- OSTI ID:
- 4338904
- Journal Information:
- Phys. Rev., C, v. 8, no. 5, pp. 1757-1769, Journal Name: Phys. Rev., C, v. 8, no. 5, pp. 1757-1769; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALPHA PARTICLES-- ALPHA SPECTRA-- ANGULAR DISTRIBUTION-- CALCIUM 42-- CROSS SECTIONS-- DIFFERENTIAL CROSS SECTIONS-- DWBA-- ENERGY SPECTRA-- FORM FACTORS-- HARMONIC OSCILLATOR MODELS-- MEV RANGE 10-100-- POTASSIUM 39-- PROTON REACTIONS-- STRIPPING-- THREE-NUCLEON TRANSFER REACTIONS-- WOODS-SAXON POTENTIAL
ENERGY LEVELS-- POTASSIUM 39-- SPECTROSCOPIC FACTORS
N68431 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
20 <= A <= 38--Energy Levels & Transitions
N68551* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
39 <= A <= 58--Nuclear Reactions & Scattering
N69230 --Physics (Nuclear)--Nuclear Theory--Nuclear Reactions & Scattering
ENERGY LEVELS-- POTASSIUM 39-- SPECTROSCOPIC FACTORS
N68431 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
20 <= A <= 38--Energy Levels & Transitions
N68551* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
39 <= A <= 58--Nuclear Reactions & Scattering
N69230 --Physics (Nuclear)--Nuclear Theory--Nuclear Reactions & Scattering