Neutron hole states in sup 89 Zr via the ( rvec p , d ) reaction at 58 MeV

• Published in: Physical review. C, Nuclear physics Nuclear physics, 1991-03, Vol.43:3
• Main Authors: Duhamel-Chretien, G., Perrin, G., Perrin, C., Comparat, V., Gerlic, E., Gales, S., Massolo, C.P.
• Format: Article
• Language: English
• Subjects: 651620 - Nuclear Properties & Reactions, A=59-89, Experimental; 651720 - Nuclear Properties & Reactions, A=90-149, Experimental; ACCELERATORS; ANALYZING POWER; ANGULAR DISTRIBUTION; ANGULAR MOMENTUM; BARYON REACTIONS; BARYONS; BEAMS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BORN APPROXIMATION; CHARGED PARTICLES; CHARGED-PARTICLE REACTIONS; CROSS SECTIONS; CYCLIC ACCELERATORS; CYCLOTRONS; DAYS LIVING RADIOISOTOPES; DEUTERONS; DIFFERENTIAL CROSS SECTIONS; DIRECT REACTIONS; DISTRIBUTION; DWBA; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; EVEN-ODD NUCLEI; FERMIONS; HADRON REACTIONS; HADRONS; INTERMEDIATE MASS NUCLEI; ISOBARIC ANALOGS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MATHEMATICAL MODELS; MEV RANGE; MEV RANGE 10-100; MINUTES LIVING RADIOISOTOPES; NEUTRONS; NUCLEAR MODELS; NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; NUCLEONS; PARITY; PARTICLE PROPERTIES; PARTICLE-HOLE MODEL; PICKUP REACTIONS; POLARIZED BEAMS; PROTON REACTIONS; RADIOISOTOPES; SPIN; TARGETS; TRANSFER REACTIONS; ZIRCONIUM 89; ZIRCONIUM 90 TARGET; ZIRCONIUM ISOTO
• ISSN: 0556-2813; 1089-490X
• DOI: 10.1103/PhysRevC.43.1116

Differential cross-section and vector analyzing-power angular distributions were measured at {ital E}{sub {ital {rvec p}}} =58 MeV for the {sup 90}Zr({ital {rvec p}},{ital d}){sup 89}Zr reaction in the angular range from 6{degree} to 50{degree} and up to 10 MeV excitation energy, with 80 keV energy resolution. In addition to the transitions to low-lying states, the spectra display strong clusters of states from {ital E}{sub {ital x}}=3.5 to 7 MeV. The observed fine structure was used to define energy bins for which cross sections and analyzing powers were obtained. The latter allowed spin and parity assignments for deep-lying hole states. Spectroscopic factors were deduced from standard distorted-wave Born approximation calculations. From the vector analyzing-power measurements, it was shown that most of the strength observed above 3.5 MeV belongs to the 1{ital f}{sub 7/2} inner neutron hole orbital.