4,562 research outputs found
Effect of isospin dependence of cross section on symmetric and neutron rich systems
We aim to explore the effect of isospin dependence of cross section on
symmetric and neutron rich system. We also aim to explore whether the analysis
is affacted if one discusses in terms of " as a function of N/Z or
N/A" of the system.Comment: 3 pages, 1 figs, DAE BRNS Symposium on Nuclear Physics Dec 26-30,
(2011), Visakhapatnam A.P. INDI
Mass dependence of balance energy for different N/Z ratio
We present the study for the mass dependence of E for various N/Z
ratios covering pure symmetric systems to highly neutron-rich ones.Comment: 2 pages, 2 figs, DAE BRNS Symposium on Nuclear Physics Dec 26-30,
(2011), Visakhapatnam A.P. INDI
Role of asymmetry of the reaction and momentum dependent interactions on the balance energy for neutron rich nuclei
We present a systematic study of disappearance of flow i.e. balance energy
for an isotopic series of Ca with N/Z varying from 1 to 2 for
different density dependences of symmetry energies. We also extend this study
for asymmetric reactions having radioactive projectile and stable target.Comment: 3 pages, 2 figs, DAE BRNS Symposium on Nuclear Physics Dec 26-30,
(2011), Visakhapatnam A.P. INDI
Effect of isospin degree of freedom on the counterbalancing of collective transverse in-plane flow
Here we aim to understand the effect of isospin dependence of cross section
and Coulomb repulsion on the counterbalancing of collective flowComment: 3 pages, 2 figs, DAE BRNS Symposium on Nuclear Physics Dec 26-30,
(2011), Visakhapatnam A.P. INDI
Observable to explore high density behaviour of symmetry energy
We aim to see the sensitivity of collective transverse in-plane flow to
symmetry energy at low as well as high densities and also to see the effect of
different density dependencies of symmetry energy on the same.Comment: 3 pages, 2 figs, DAE BRNS Symposium on Nuclear Physics Dec 26-30,
(2011), Visakhapatnam A.P. INDI
Nuclear Dynamics at the Balance Energy
We study the mass dependence of various quantities (like the average and
maximum density, collision rate, participant-spectator matter, temperature as
well as time zones for higher density) by simulating the reactions at the
energy of vanishing flow. This study is carried out within the framework of
Quantum Molecular Dynamics model. Our findings clearly indicate an existence of
a power law in all the above quantities calculated at the balance energy. The
only significant mass dependence was obtained for the temperature reached in
the central sphere. All other quantities are rather either insensitive or
depend weakly on the system size at balance energy. The time zone for higher
density as well as the time of maximal density and collision rate follow a
power law inverse to the energy of vanishing flow.Comment: 9 figures, Submitted to Phys. Rev.
Isospin effects on the system size dependence of balance energy in heavy-ion collisions
We study the effect of isospin degree of freedom on balance energy throughout
the mass range between 50 and 350 for two sets of isobaric systems with N/A =
0.5 and 0.58. Our fndings indicate that different values of balance energy for
two isobaric systems may be mainly due to the Coulomb repulsion. We also
demonstrate clearly the dominance of Coulomb repulsion over symmetry energy.Comment: EFB 2010, August29-september03, 2010 Salamanca, SPAI
Impact parameter dependence of isospin effects on the mass dependence of balance energy
We study the effect of isospin degree of freedom on the balance energy as
well as its mass dependence throughout the mass range 48-270 for two sets of
isobaric systems with N/Z = 1 and 1.4 using isospin-dependent quantum molecular
dynamics (IQMD) model. Our fndings reveal the dominance of Coulomb repulsion in
isospin effects on balance energy as well as its mass dependence throughout the
range of the colliding geometry.Comment: International Symposium on Quasifission Process in Heavy Ion
Reactions, Messina (ITLAY) November 8-9, 201
Model ingredients and peak mass production in heavy-ion collisions
We simulate the central reactions of Ne+Ne,
Ar+Sc, Ni+Ni, Kr+Nb,
Xe+Sn, Kr+Au, and Au+Au at
different incident energies for different equations of state, different binary
cross sections and different widths of Gaussians. A rise-and-fall behavior of
the multiplicity of intermediate mass fragments (IMFs) is observed. The system
size dependence of peak center-of-mass energy E and peak IMF
multiplicity is also studied, where it is observed that
E follows a linear behavior and shows a
power-law dependence. A comparison between two clusterization methods, the
minimum spanning tree and the minimum spanning tree method with binding energy
check (MSTB), is also made. We find that the MSTB method reduces the
, especially in heavy systems. The power-law dependence is
also observed for fragments of different sizes at E and the
power-law parameter is found to be close to unity in all cases except
A.Comment: 6 Figures, 7 page
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