TY - GEN
T1 - Beyond mean-field approach to heavy-ion reactions around the Coulomb barrier
AU - Washiyama, Kouhei
AU - Lacroix, Denis
AU - Ayik, Sakir
AU - Yilmaz, Bülent
N1 - Publisher Copyright:
© Owned by the authors, published by EDP Sciences, 2011.
PY - 2011/10/19
Y1 - 2011/10/19
N2 - Dissipation and fluctuations of one-body observables in heavy-ion reactions around the Coulomb barrier are investigated with a microscopic stochastic mean-field approach. By projecting the stochastic meanfield dynamics on a suitable collective path, transport coefficients associated with the relative distance between colliding nuclei and a fragment mass are extracted. Although microscopic mean-field approach is know to underestimate the variance of fragment mass distribution, the description of the variance is much improved by the stochastic mean-field method. While fluctuations are consistent with the empirical (semiclassical) analysis of the experimental data, concerning mean values of macroscopic variables the semiclassical description breaks down below the Coulomb barrier.
AB - Dissipation and fluctuations of one-body observables in heavy-ion reactions around the Coulomb barrier are investigated with a microscopic stochastic mean-field approach. By projecting the stochastic meanfield dynamics on a suitable collective path, transport coefficients associated with the relative distance between colliding nuclei and a fragment mass are extracted. Although microscopic mean-field approach is know to underestimate the variance of fragment mass distribution, the description of the variance is much improved by the stochastic mean-field method. While fluctuations are consistent with the empirical (semiclassical) analysis of the experimental data, concerning mean values of macroscopic variables the semiclassical description breaks down below the Coulomb barrier.
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U2 - 10.1051/epjconf/20111709003
DO - 10.1051/epjconf/20111709003
M3 - Conference contribution
AN - SCOPUS:84921511457
T3 - EPJ Web of Conferences
BT - 5th International Conference, FUSION 2011
A2 - Lacroix, D.
A2 - Schmitt, Ch.
A2 - Navin, A.
A2 - Goutte, H.
A2 - Rejmund, M.
PB - EDP Sciences
T2 - 5th International Conference on FUSION 2011
Y2 - 2 May 2011 through 6 May 2011
ER -