Determination of the asymptotic [ital D]- to [ital S]-state ratio of the triton from sub-Coulomb ([ital [rvec d]],[ital t]) reactions

Journal Article · Thu Dec 01 04:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.2695· OSTI ID:7057578

Kozlowska, B; Ayer, Z; Das, R K; Karwowski, H J; Ludwig, E J ^[1]

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1. Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 (United States) Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708 (United States)

Angular distributions of the tensor analyzing power [ital A][sub [ital z][ital z]] have been measured for ground state transitions in [sup 119]Sn([ital [rvec d]],[ital t])[sup 118]Sn and [sup 149]Sm([ital [rvec d]],[ital t])[sup 148]Sm and the first excited state (0.263 MeV) in[sup 206]Pb([ital [rvec d]],[ital t])[sup 205]Pb for deuteron energies well below the Coulomb barrier. Exact, finite-range distorted-wave Born approximation analyses of these data have been made to establish the asymptotic [ital D]- to [ital S]-state ratio for the triton, [eta][sub [ital t]]. These calculations include a deuteron-nucleus tensor potential determined from the folding model and a long-range tensor potential arising from the Coulomb interaction. Previously obtained [ital A][sub [ital z][ital z]]([theta]) data for the ground state transitions in [sup 95]Mo([ital [rvec d]],[ital t])[sup 94]Mo, [sup 119]Sn([ital [rvec d]],[ital t])[sup 118]Sn, and [sup 149]Sm([ital [rvec d]],[ital t])[sup 148]Sm at different sub-Coulomb energies have been reanalyzed. Also a careful investigation of possible uncertainties in the value of [eta][sub [ital t]] is presented. A best fit to the data gives [eta][sub [ital t]]=[minus]0.0411[plus minus]0.0013[plus minus]0.0012, somewhat lower than previous experimental determinations.

• DOE Contract Number: FG05-88ER40442
• OSTI ID: 7057578
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:6; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663440* -- D-
T-
& He-induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
ANALYZING POWER
ANGULAR DISTRIBUTION
BEAMS
BETA DECAY RADIOISOTOPES
BORN APPROXIMATION
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
D STATES
DEUTERON REACTIONS
DIRECT REACTIONS
DISTRIBUTION
DWBA
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
GROUND STATES
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD 205
LEAD 206 TARGET
LEAD ISOTOPES
NUCLEAR FORCES
NUCLEAR REACTIONS
NUCLEI
POLARIZED BEAMS
POTENTIALS
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
S STATES
SAMARIUM 148
SAMARIUM 149 TARGET
SAMARIUM ISOTOPES
SECONDS LIVING RADIOISOTOPES
STABLE ISOTOPES
TARGETS
TIN 116
TIN 119 TARGET
TIN ISOTOPES
TRANSFER REACTIONS
TRITONS
YEARS LIVING RADIOISOTOPES