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Using the QMD model, we study the mass dependence of the disappearance of transverse flow in heavier colliding nuclei. A power law mass dependence is obtained in all cases. Our results are in excellent agreement with data. For the first…

Nuclear Theory · Physics 2010-04-29 Rajeev K. Puri , Amandeep Sood , J. Aichelin

We study the balance energy as a function of the composite mass of the system. The results are in very good agreement with data over a wide range of masses from very light (Ne+Al) to very heavy (Au+Au) for hard equation of state and…

Nuclear Theory · Physics 2010-04-30 Amandeep Sood , R. K. Puri

A complete theoretical study is presented for the disappearance of flow, for the first time, by analyzing 15 reactions with masses between 47 and 476 units. We demonstrate that the effect of nucleon-nucleon cross-section reduces to…

Nuclear Theory · Physics 2011-08-03 Aman D. Sood , Rajeev K. Puri

We aim to study the role of momentum-dependent interactions in transverse flow as well as in its disappearance. For the present study, central collisions involving mass between 24 and 394 are considered. We find that momentum-dependent…

Nuclear Theory · Physics 2015-05-18 Aman D. Sood , Rajeev K. Puri

We study the correlation between balance energy and transition energy of fragment in heavy-ion collisions for different systems at incident energies between 40 and 1200 MeV/nucleon using an isospin-dependent quantum molecular dynamics…

Nuclear Theory · Physics 2011-11-08 Rajni , Suneel Kumar , Rajeev K. Puri

We present here the system size dependence of balance energy for semi-central and peripheral collisions using quantum molecular dynamics model. For this study, the reactions of $Ne^{20}+Ne^{20}$, $Ca^{40}+Ca^{40}$, $Ni^{58}+Ni^{58}$,…

Nuclear Theory · Physics 2015-05-18 Rajiv Chugh , Rajeev K. Puri

A strong differential transverse collective flow is predicted for the first time to occur in heavy-ion collisions at balance energies. We also give a novel explanation for the disappearance of the total transverse collective flow at the…

Nuclear Theory · Physics 2009-10-31 Bao-An Li , Andrew T. Sustich

Within the framework of an isospin-dependent Boltzmann-Uehling-Uhlenbeck (BUU) model using initial proton and neutron densities calculated from the nonlinear relativistic mean-field (RMF) theory, we compare the strength of transverse…

Nuclear Theory · Physics 2009-09-25 Bao-An Li , Z. Z. Ren , C. M. Ko , S. J. Yennello

The effect of different isospin-dependent cross-section on directed flow is studied for variety of systems(for which experimental balance energies are available) using an isospin-dependent Quantum Molecular Dynamic (IQMD) model. We show…

Nuclear Theory · Physics 2011-04-26 Sanjeev Kumar , Rajni , Suneel Kumar

Based on the isospin-dependent quantum molecular dynamics (IQMD) picture, we attempt to understand the nature of transverse flow in $_{28}Ni^{58}+_{28}Ni^{58}$ and $_{26}Fe^{58}+_{26}Fe^{58}$ systems at wide range of energies and impact…

Nuclear Theory · Physics 2011-10-03 Varinderjit Kaur , Dolly Sood , Suneel Kumar

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…

Nuclear Theory · Physics 2011-02-11 Aman D. Sood , Rajeev K. Puri

We show that in a central nucleus-nucleus collision, the variation of the mean transverse mass with the multiplicity is determined, up to a rescaling, by the variation of the energy over entropy ratio as a function of the entropy density,…

Nuclear Theory · Physics 2017-10-13 Akihiko Monnai , Jean-Yves Ollitrault

In relativistic nucleus-nucleus collisions the transverse energy per charged particle, E_T/N_ch, increases rapidly with beam energy and remains approximately constant at about 800 MeV for beam energies from SPS to RHIC. It is shown that the…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Cleymans , R. Sahoo , D. P. Mahapatra , D. K. Srivastava , S. Wheaton

Multinucleon transfer mechanism in the collision of ${}^{238}\text{U}+{}^{238}\text{U}$ system is investigated at $E_\text{c.m.} =833$ MeV in the framework of the quantal diffusion description based on the stochastic mean-field approach…

Nuclear Theory · Physics 2020-08-26 S. Ayik , B. Yilmaz , O. Yilmaz , A. S. Umar

The proton elliptic flow in collisions of Ca on Ca at energies from 30 to 100 MeV/nucleon is studied in an isospin-dependent transport model. With increasing incident energy, the elliptic flow shows a transition from positive to negative…

Nuclear Theory · Physics 2009-10-31 Yu-Ming Zheng , C. M. Ko , Bao-An Li , Bin Zhang

The centrality dependence of directed and elliptic flow in light and heavy systems of colliding nuclei is studied within two microscopic transport models at energies from 1 AGeV to 160 A GeV. The pion directed flow has negative slope in the…

Nuclear Theory · Physics 2009-11-06 L. V. Bravina , Amand Faessler , C. Fuchs , E. E. Zabrodin

We study the transverse flow for systems having various N/Z ratios. We find the transverse flow is sensitive to N/Z ratio and, in fact, increases with N/Z of the system. The relative contribution of symmetry energy and isospin dependence of…

Nuclear Theory · Physics 2015-05-28 Sakshi Gautam , Rajeev K. Puri

Light nuclei and hyper-nuclei are produced in abundance in heavy-ion collisions. The production mechanism of these species in heavy-ion collisions still remains to be understood. In these proceedings, we report the transverse momentum and…

Nuclear Experiment · Physics 2023-03-22 Rishabh Sharma

The centrality dependence of pseudorapidity density of charged particles and transverse energy is studied for a wide range of collision energies for heavy-ion collisions at midrapidity from 7.7 GeV to 5.02 TeV. A two-component model…

High Energy Physics - Phenomenology · Physics 2016-10-20 Aditya Nath Mishra , Raghunath Sahoo , Pragati Sahoo , Pooja Pareek , Nirbhay K. Behera , Basanta K. Nandi

Transverse-mass spectra of protons, pions and kaons produced in collisions of heavy nuclei are analyzed within the model of 3-fluid dynamics. It was demonstrated that this model consistently reproduces these spectra in wide ranges of…

Nuclear Theory · Physics 2009-11-13 Yu. B. Ivanov , V. N. Russkikh
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