TY - JOUR
T1 - Target breakup in the su(6,7)Li(p, p') reactions
AU - Tosaki, M.
AU - Fujiwara, M.
AU - Hosono, K.
AU - Noro, T.
AU - Ito, H.
AU - Yamazaki, T.
AU - Ikegami, H.
N1 - Funding Information:
We are indebted to the staff of the Research Center for Nuclear Physics for their generous support during this experiment, which was supported by the RCNP under program Number 19A22 and 20A30. The analyses were done with computers FACOM-M200 and FACOM-180IIAD. We gratefully acknowledge Dr. Y. Koike and Dr. K. Miyagawa for valuable discussions concerning the theoretical aspects of the present experiments. We are also grateful to Prof. R.E. Warner for his useful advice and discussions. We wish to thank Prof. N.S. Chant for providing us the PWIA code.
PY - 1989/2/27
Y1 - 1989/2/27
N2 - The continuum spectra near the target breakup thresholds of the 6Li→ α+d and 7Li→α+tfs processes in the 6,7Li(p, p') reactions have been studied with 65 and 80 MeV polarized proton beams. The cross sections and analyzing powers of the continuum spectra in the threshold energy region, where the breakup αd or αt pair is in small relative energy, have been measured. A marked difference in shape of the continuum spectra near breakup thresholds has been observed for the 6Li(p, p') and 7Li(p, p') reactions, and is explained in terms of the partial wave relevant to the breakup processes of 6Li and 7Li. We found that the cross section of the continuum decreases rapidly at forward angles. The cross section has been analyzed in the framework of the α+p quasifree scattering. We fail to describe the rapid decrease of the continuum cross section at forward angles, though the shape of the angular distribution at backward angles has been fairly well reproduced. This may suggest that the quasifree scattering is strongly influenced by the final-state interaction effect between a recoil particle and a spectator under the condition of the small relative energy at forward angles.
AB - The continuum spectra near the target breakup thresholds of the 6Li→ α+d and 7Li→α+tfs processes in the 6,7Li(p, p') reactions have been studied with 65 and 80 MeV polarized proton beams. The cross sections and analyzing powers of the continuum spectra in the threshold energy region, where the breakup αd or αt pair is in small relative energy, have been measured. A marked difference in shape of the continuum spectra near breakup thresholds has been observed for the 6Li(p, p') and 7Li(p, p') reactions, and is explained in terms of the partial wave relevant to the breakup processes of 6Li and 7Li. We found that the cross section of the continuum decreases rapidly at forward angles. The cross section has been analyzed in the framework of the α+p quasifree scattering. We fail to describe the rapid decrease of the continuum cross section at forward angles, though the shape of the angular distribution at backward angles has been fairly well reproduced. This may suggest that the quasifree scattering is strongly influenced by the final-state interaction effect between a recoil particle and a spectator under the condition of the small relative energy at forward angles.
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U2 - 10.1016/0375-9474(89)90529-0
DO - 10.1016/0375-9474(89)90529-0
M3 - Article
AN - SCOPUS:0002088676
SN - 0375-9474
VL - 493
SP - 1
EP - 12
JO - Nuclear Physics, Section A
JF - Nuclear Physics, Section A
IS - 1
ER -