(/sup 6/Li,t) reaction on medium-mass nuclei and the mass and spectrum of /sup 61/Zn

Journal Article · Sun Jan 01 04:00:00 EST 1978 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.17.66· OSTI ID:5086353

Woods, C W; Stein, N; Sunier, J W

The (/sup 6/Li,t) reaction was studied with a 34-MeV /sup 6/Li beam on enriched targets of /sup 24/Mg, /sup 28/Si, /sup 54/Fe, /sup 56/Fe, and /sup 58/Ni. The tritons were momentum analyzed in a quadrupole-dipole-dipole-dipole magnetic spectrograph and detected with a 1-m helical cathode proportional counter that covered about 4 MeV of excitation. Cross sections for the (/sup 6/Li,t) reaction to strongly excited states are generally in the range of 1 to 10 ..mu..b/sr with exceptions up to 50 ..mu..b/sr. Comparisons are made, where possible, between the selectivity of this reaction and other reactions leading to the same final nuclei. A similarity with single-neutron stripping is observed, which suggests a (/sup 6/Li,t) reaction mechanism involving direct transfer of a proton-pair coupled to a single neutron. The possible two-step process (/sup 6/Li,d)(d,t) is also suggested to account for two cases of f/sub 7/2/ hole states populated in the nickel isotopes. The /sup 58/Ni(/sup 6/Li,t) /sup 61/Zn Q value was measured to be -4736 +- 23 keV giving a mass excess of -56 352 +- 26 keV for /sup 61/Zn. This mass excess is believed to be more reliable than previous measurements with other techniques that differ by 500 keV. The triton spectrum for the /sup 58/Ni(/sup 6/Li,t)/sup 61/Zn reaction yields the first measurement of the energy levels of /sup 61/Zn.

• Research Organization: University of California, Los Alamos Scientific Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 5086353
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 17:1; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DAYS LIVING RADIOISOTOPES
DIRECT REACTIONS
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY RANGE
EVEN-ODD NUCLEI
HEAVY ION REACTIONS
INTERMEDIATE MASS NUCLEI
IRON 54 TARGET
IRON 56 TARGET
ISOTOPES
LIGHT NUCLEI
LITHIUM 6 REACTIONS
MAGNESIUM 24 TARGET
MASS DEFECT
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
MULTI-NUCLEON TRANSFER REACTIONS
NICKEL 57
NICKEL 58 TARGET
NICKEL 59
NICKEL ISOTOPES
NUCLEAR REACTIONS
NUCLEI
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SILICON 27
SILICON 28 TARGET
SILICON ISOTOPES
SULFUR 31
SULFUR ISOTOPES
TARGETS
THREE-NUCLEON TRANSFER REACTIONS
TRANSFER REACTIONS
TRITONS
YEARS LIVING RADIOISOTOPES
ZINC 61
ZINC ISOTOPES