TY - JOUR
T1 - Evolution of fusion hindrance for asymmetric systems at deep sub-barrier energies
AU - Shrivastava, A.
AU - Mahata, K.
AU - Pandit, S. K.
AU - Nanal, V.
AU - Ichikawa, T.
AU - Hagino, K.
AU - Navin, A.
AU - Palshetkar, C. S.
AU - Parkar, V. V.
AU - Ramachandran, K.
AU - Rout, P. C.
AU - Kumar, Abhinav
AU - Chatterjee, A.
AU - Kailas, S.
N1 - Publisher Copyright:
© 2016 The Authors.
PY - 2016/4/10
Y1 - 2016/4/10
N2 - Measurements of fusion cross-sections of 7Li and 12C with 198Pt at deep sub-barrier energies are reported to unravel the role of the entrance channel in the occurrence of fusion hindrance. The onset of fusion hindrance has been clearly observed in C12+Pt198 system but not in Li7+Pt198 system, within the measured energy range. Emergence of the hindrance, moving from lighter (6,7Li) to heavier (12C, 16O) projectiles is explained employing a model that considers a gradual transition from a sudden to adiabatic regime at low energies. The model calculation reveals a weak effect of the damping of coupling to collective motion for the present systems as compared to that obtained for systems with heavier projectiles.
AB - Measurements of fusion cross-sections of 7Li and 12C with 198Pt at deep sub-barrier energies are reported to unravel the role of the entrance channel in the occurrence of fusion hindrance. The onset of fusion hindrance has been clearly observed in C12+Pt198 system but not in Li7+Pt198 system, within the measured energy range. Emergence of the hindrance, moving from lighter (6,7Li) to heavier (12C, 16O) projectiles is explained employing a model that considers a gradual transition from a sudden to adiabatic regime at low energies. The model calculation reveals a weak effect of the damping of coupling to collective motion for the present systems as compared to that obtained for systems with heavier projectiles.
KW - Adiabatic model
KW - Coupled channels calculations
KW - Deep sub-barrier energies
KW - Fusion cross sections
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U2 - 10.1016/j.physletb.2016.02.029
DO - 10.1016/j.physletb.2016.02.029
M3 - Article
AN - SCOPUS:84959175392
VL - 755
SP - 332
EP - 336
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -