TY - JOUR
T1 - Effects of anharmonic vibration on large-angle quasi-elastic scattering of O16+Sm144
AU - Zamrun F., Muhammad
AU - Hagino, K.
PY - 2008/1/11
Y1 - 2008/1/11
N2 - We study the effects of double octupole and quadrupole phonon excitations in the Sm144 nucleus on quasi-elastic O16+Sm144 scattering at backward angles. To this end, we use the coupled-channels framework, taking into account explicitly the anharmonicities of the vibrations. We use the same coupling scheme as that previously employed to explain the experimental data of sub-barrier fusion cross sections for the same system. We show that the experimental data for the quasi-elastic cross sections are well reproduced in this way, although the quasi-elastic barrier distribution has a distinct high energy peak which is somewhat smeared in the experimental barrier distribution. We also discuss the effects of proton transfer on the quasi-elastic barrier distribution. Our study indicates that the fusion and quasi-elastic barrier distributions for this system cannot be accounted for simultaneously with the standard coupled-channels approach.
AB - We study the effects of double octupole and quadrupole phonon excitations in the Sm144 nucleus on quasi-elastic O16+Sm144 scattering at backward angles. To this end, we use the coupled-channels framework, taking into account explicitly the anharmonicities of the vibrations. We use the same coupling scheme as that previously employed to explain the experimental data of sub-barrier fusion cross sections for the same system. We show that the experimental data for the quasi-elastic cross sections are well reproduced in this way, although the quasi-elastic barrier distribution has a distinct high energy peak which is somewhat smeared in the experimental barrier distribution. We also discuss the effects of proton transfer on the quasi-elastic barrier distribution. Our study indicates that the fusion and quasi-elastic barrier distributions for this system cannot be accounted for simultaneously with the standard coupled-channels approach.
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U2 - 10.1103/PhysRevC.77.014606
DO - 10.1103/PhysRevC.77.014606
M3 - Article
AN - SCOPUS:38049035746
VL - 77
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
SN - 0556-2813
IS - 1
M1 - 014606
ER -