Measurements of vector analyzing power in the ( rvec d , t ) reaction on sup 54 Cr, sup 56 Fe, and sup 64 Ni at 15, 16, and 18 MeV

• Published in: Physical review. C, Nuclear physics Vol. 44:1
• Main Authors: Alford, W.P., Cameron, J.A., Habib, E.
• Format: Journal Article
• Language: English
• Published: United States 01-07-1991
• Subjects: 651520 - Nuclear Properties & Reactions, A=39-58, Experimental; 651620 - Nuclear Properties & Reactions, A=59-89, Experimental; ACCELERATORS; ANALYZING POWER; ANGULAR DISTRIBUTION; ANGULAR MOMENTUM; BEAMS; BORN APPROXIMATION; CHARGED PARTICLES; CHARGED-PARTICLE REACTIONS; CHROMIUM 54 TARGET; DEUTERON REACTIONS; DIRECT REACTIONS; DISTRIBUTION; DWBA; ELECTROSTATIC ACCELERATORS; ENERGY; ENERGY DEPENDENCE; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; IRON 56 TARGET; MEV RANGE; MEV RANGE 10-100; NICKEL 64 TARGET; NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR REACTIONS; PARITY; PARTICLE PROPERTIES; PICKUP REACTIONS; POLARIZED BEAMS; Q-VALUE; SPECTROSCOPIC FACTORS; SPIN; TARGETS; TRANSFER REACTIONS; TRITONS; VAN DE GRAAFF ACCELERATORS
• ISSN: 0556-2813; 1089-490X
• DOI: 10.1103/PhysRevC.44.319

Measurements of vector analyzing power have been carried out for the ({ital {rvec d}},{ital t}) reaction on targets of {sup 54}Cr, {sup 56}Fe, and {sup 64}Ni at deuteron energies of 15, 16, and 18 MeV. Data were taken over the angular range 10{degree}--55{degree} for transitions to low-lying states of {ital J}{sup {pi}}=(1/2,3/2, 5/2,7/2){sup {minus}} using a position-sensitive counter telescope in the focal plane of an Enge spectrograph. Transitions to states of {ital j}{sup {pi}}=3/2{sup {minus}} or 7/2{sup {minus}} show only slight dependence on incident energy, while those to states of {ital j}{sup {pi}}=1/2{sup {minus}} or 5/2{sup {minus}} show a greater dependence, and greater variations between different states. Distorted-wave Born approximation calculations show at best qualitative agreement with the data. The results indicate that measurements of VAP for the ({ital {rvec d}},{ital t}) reaction at low energies will not provide accurate estimates of {ital j} mixing for transitions on odd-{ital A} targets.