We aim to understand the role of Coulomb interactions as well as of different equations of state on the disappearance of transverse flow for various asymmetric reactions leading to same total mass. For the present study, the total mass of... more
We aim to understand the role of Coulomb interactions as well as of different equations of state on the disappearance of transverse flow for various asymmetric reactions leading to same total mass. For the present study, the total mass of the system is kept constant (ATOT = 152) and asymmetry of the reaction is varied between 0.2 and 0.7. We find that the contribution of mean-field at low incident energies is more for nearly symmetric systems, while the trend is opposite at higher incident energies. The Coulomb interactions as well as different equations of state are found to affect the balance energy significantly for larger asymmetric reactions.
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We study the role of momentum cuts in fragment formation. The time evolution of nucleons is followed using the quantum molecular dynamics model. The fragments are formed within a minimum spanning tree description which allows two nucleons... more
We study the role of momentum cuts in fragment formation. The time evolution of nucleons is followed using the quantum molecular dynamics model. The fragments are formed within a minimum spanning tree description which allows two nucleons to be in the same fragment if their centriods are less than 4 fm. We introduce an additional condition by imposing a restriction in momentum space. Our analysis indicates that the effect of the cut (in momentum space) on fragment formation is stronger if the cut in the relative momentum of two nucleons is <=150 MeV/c. For higher values of the cut in the relative momentum of two nucleons (>=200 MeV/c), fragment production with and without the momentum cut is the same. A cut of the order of the Fermi momentum (in the relative momentum of two nucleons) has a strong influence on the fragment distribution in central collisions whereas its effect is least in peripheral collisions. The fragment multiplicities and rapidity distributions obtained for central collisions with a cut of the order of the Fermi momentum (=150 MeV/c) matches at asymptotic times (after 120 fm/c) with the most bound fragment structure obtained using a recently advanced simulated annealing clusterization algorithm.
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ABSTRACT Nuclear stopping is studied as a function of incident energy and charge of the fragment produced in central heavy-ion collisions (HIC) of AuAu and NiNi using stopping parameter VARXZ. Various momentum constraints were imposed to... more
ABSTRACT Nuclear stopping is studied as a function of incident energy and charge of the fragment produced in central heavy-ion collisions (HIC) of AuAu and NiNi using stopping parameter VARXZ. Various momentum constraints were imposed to get better insight into the stopping. The comparison of measured and calculated values of stopping for protons reveals the significance of these constraints. Maximum stopping is obtained for the particles lying in the lowest range of the momentum distribution at all incident energies.
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... With IO modeling, the product system that consists of supply chains is modeled using economic flow databases (inputoutput tables). ... On the basis of Japan&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#x27;s IO... more
... With IO modeling, the product system that consists of supply chains is modeled using economic flow databases (inputoutput tables). ... On the basis of Japan&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#x27;s IO table, Nansai [26] has developed database on embodied energy use and the emission of air pollutants. ...
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ABSTRACT Nuclear stopping is studied as a function of incident energy and charge of the fragment produced in central heavy-ion collisions (HIC) of AuAu and NiNi using stopping parameter VARXZ. Various momentum constraints were imposed to... more
ABSTRACT Nuclear stopping is studied as a function of incident energy and charge of the fragment produced in central heavy-ion collisions (HIC) of AuAu and NiNi using stopping parameter VARXZ. Various momentum constraints were imposed to get better insight into the stopping. The comparison of measured and calculated values of stopping for protons reveals the significance of these constraints. Maximum stopping is obtained for the particles lying in the lowest range of the momentum distribution at all incident energies.
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The incomplete fusion, onset of multifragmentation and vaporization is studied in Ca-Ca collisions at bombarding energies between 201000 A MeV and at impact parameters between b=0 and b max . The simulations of Ca-Ca are performed using... more
The incomplete fusion, onset of multifragmentation and vaporization is studied in Ca-Ca collisions at bombarding energies between 201000 A MeV and at impact parameters between b=0 and b max . The simulations of Ca-Ca are performed using the quantum molecular dynamics ( ...
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... With IO modeling, the product system that consists of supply chains is modeled using economic flow databases (inputoutput tables). ... On the basis of Japan&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#x27;s IO... more
... With IO modeling, the product system that consists of supply chains is modeled using economic flow databases (inputoutput tables). ... On the basis of Japan&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#x27;s IO table, Nansai [26] has developed database on embodied energy use and the emission of air pollutants. ...
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We discuss the importance of momentum dependent interactions in explaining the multifragmentation in asymmetric reactions by comparing the results with 16 O-induced emulsion data. The reactions are simulated within a quantum molecular... more
We discuss the importance of momentum dependent interactions in explaining the multifragmentation in asymmetric reactions by comparing the results with 16 O-induced emulsion data. The reactions are simulated within a quantum molecular dynamics model and the clusterization is ...
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The relative role of the momentum-dependent interactions and larger nucleon-nucleon cross section is discussed in multifragmentation using quantum molecular dynamical model. We find that the sensitivity of the larger cross section towards... more
The relative role of the momentum-dependent interactions and larger nucleon-nucleon cross section is discussed in multifragmentation using quantum molecular dynamical model. We find that the sensitivity of the larger cross section towards multifragmentation reduces in the ...
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We present a systematic study of the dependence of the fragment production on the nucleon-nucleon cross section using the quantum molecular dynamics model as an event generator. We employ constant energy-dependent and in-medium cross... more
We present a systematic study of the dependence of the fragment production on the nucleon-nucleon cross section using the quantum molecular dynamics model as an event generator. We employ constant energy-dependent and in-medium cross sections. In our ...
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... The theoretical re-sults are compared with the experimental data extracted by the INDRA, FOPI, and Plastic Ball Collaborations [5,6]. With the increase in the incident energy, the elliptical flow v2 changes from ... C 82, 024610... more
... The theoretical re-sults are compared with the experimental data extracted by the INDRA, FOPI, and Plastic Ball Collaborations [5,6]. With the increase in the incident energy, the elliptical flow v2 changes from ... C 82, 024610 (2010); S. Kumar and S. Kumar, Pramana J. Phys. ...
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We discuss the stability of fragments formed in central heavy ion collisions at intermediate energies using a quantum molecular dynamics model as an event generator. To address the question of stability of fragments, we employ three... more
We discuss the stability of fragments formed in central heavy ion collisions at intermediate energies using a quantum molecular dynamics model as an event generator. To address the question of stability of fragments, we employ three different methods of clusterization. (i) The ...
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We present a complete systematically theoretical study of multifragmentation for asymmetric colliding nuclei for heavy-ion reactions in the energy range between 50 MeV/nucleon and 600 MeV/nucleon by using soft and hard equations of state.... more
We present a complete systematically theoretical study of multifragmentation for asymmetric colliding nuclei for heavy-ion reactions in the energy range between 50 MeV/nucleon and 600 MeV/nucleon by using soft and hard equations of state. This study is performed within an ...
The incomplete fusion, onset of multifragmentation and vaporization is studied in Ca-Ca collisions at bombarding energies between 201000 A MeV and at impact parameters between b=0 and b max . The simulations of Ca-Ca are performed using... more
The incomplete fusion, onset of multifragmentation and vaporization is studied in Ca-Ca collisions at bombarding energies between 201000 A MeV and at impact parameters between b=0 and b max . The simulations of Ca-Ca are performed using the quantum molecular dynamics ( ...
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... PHYSICAL REVIEW C 82, 024610 (2010) Experimental balance energies and isospin-dependent nucleon-nucleon cross-sections Sanjeev Kumar, Rajni, and Suneel Kumar* School of Physics and Materials Science, Thapar University, Patiala 147004,... more
... PHYSICAL REVIEW C 82, 024610 (2010) Experimental balance energies and isospin-dependent nucleon-nucleon cross-sections Sanjeev Kumar, Rajni, and Suneel Kumar* School of Physics and Materials Science, Thapar University, Patiala 147004, Punjab, India (Received ...
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We discuss the importance of momentum dependent interactions in explaining the multifragmentation in asymmetric reactions by comparing the results with 16 O-induced emulsion data. The reactions are simulated within a quantum molecular... more
We discuss the importance of momentum dependent interactions in explaining the multifragmentation in asymmetric reactions by comparing the results with 16 O-induced emulsion data. The reactions are simulated within a quantum molecular dynamics model and the clusterization is ...
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The relative role of the momentum-dependent interactions and larger nucleon-nucleon cross section is discussed in multifragmentation using quantum molecular dynamical model. We find that the sensitivity of the larger cross section towards... more
The relative role of the momentum-dependent interactions and larger nucleon-nucleon cross section is discussed in multifragmentation using quantum molecular dynamical model. We find that the sensitivity of the larger cross section towards multifragmentation reduces in the ...