Experimental survey of the ([ital [rvec d]],[ital t]) reaction at [ital E][sub [ital d]]=200 MeV

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

DOI:https://doi.org/10.1103/PhysRevC.50.2935· OSTI ID:7057513

Van de Wiele, J; Langevin-Joliot, H; Jourdan, F; Guillot, J; Gerlic, E; Rosier, L H; Willis, A; Djalali, C; Morlet, M; Tomasi-Gustafsson, E; Blasi, N; Micheletti, S; van der Werf, S Y ^[1]

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1. Institut de Physique Nucleaire, IN2P3-CNRS, BP No. 1, 91406 Orsay (France) Institut de Physique Nucleaire, IN2P3-CNRS, 43 Boulevard du 11 Novembre, 69622 Lyon-Villeurbanne (France) Department of Physics Astronomy, University of South Carolina, Columbia, South Carolina 29208 (United States) Laboratoire National Saturne, CEN-Saclay, F 91191, Gif sur Yvette (France) INFN and University of Milan, Physics Department, Via Celoria 16, 20133 Milan (Italy) Kernfysisch Versneller Instituut, 9747 AA Groningen (Netherlands)

Differential cross sections, vector and tensor analyzing powers of the ([ital [rvec d]],[ital t]) reaction on [sup 120]Sn, [sup 116]Sn, [sup 90]Zr, [sup 58]Ni, [sup 16]O, and [sup 12]C have been measured at 200 MeV bombarding energy. Deuteron elastic scattering measurements have been performed on [sup 116]Sn and [sup 208]Pb at the same energy. These data have been analyzed together with previous ones on [sup 58]Ni and [sup 16]O to get best fit optical parameters describing deuteron elastic scattering. The ([ital [rvec d]],[ital t]) experimental survey bears on 28 transitions populating well known valence levels, including previous data in [sup 207]Pb and [sup 27]Si. The vector and tensor analyzing powers exhibit striking similarities for transitions measured in different nuclei. The angular distributions are found to strongly depend on the number of nodes in the neutron form factor and on the coupling of spin and angular momentum [ital j][sub [minus]]=[ital l][minus]1/2 versus [ital j][sub +]=[ital l]+1/2. The [ital j] effect is especially pronounced, for both analyzing powers for [ital n]=1 transitions. The slopes of the differential cross sections in different nuclei depend mainly on the number of nodes. Exact finite range calculations including [ital S] and [ital D] components have been performed, using two sets of deuteron parameters together with a deep triton potential. Both analyses reproduce rather well the differential cross sections and currently adopted spectroscopic factors. The conventional analyses with deuteron parameters fitting elastic scattering data reproduce rather well analyzing powers of [ital n][gt]1 transitions (with [ital l]=0,1,2), but disagree with the data for [ital n]=1 transitions (except for [ital j][sub +][ital A][sub [ital y][ital y]] values). Good or qualitative agreement is achieved for all transitions with the second deuteron potential, characterized by larger spin orbit terms and an additional imaginary tensor term.

• OSTI ID: 7057513
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Vol. 50:6; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 12 TARGET
DEUTERON REACTIONS
TRANSFER REACTIONS
NICKEL 58 TARGET
OXYGEN 16 TARGET
TIN 116 TARGET
TIN 120 TARGET
ZIRCONIUM 90 TARGET
ANALYZING POWER
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
MEV RANGE 100-1000
OPTICAL MODELS
PARTIAL WAVES
POLARIZED BEAMS
TRITONS
BEAMS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIRECT REACTIONS
ENERGY RANGE
MEV RANGE
NUCLEAR REACTIONS
SCATTERING
TARGETS
663440* - D-
T-
& He-induced Reactions & Scattering- (1992-)
663300 - Nuclear Reactions & Scattering
General- (1992-)