A5000660376- Nuclear physics research studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Nuclear reactor physics and engineering
- Advanced Chemical Physics Studies
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Astronomical and nuclear sciences
- Field-Flow Fractionation Techniques
- Advanced NMR Techniques and Applications
- Quantum, superfluid, helium dynamics
- Statistical Mechanics and Entropy
- Astro and Planetary Science
- Black Holes and Theoretical Physics
- Advanced Thermodynamics and Statistical Mechanics
- Quantum Mechanics and Non-Hermitian Physics
- Mathematical functions and polynomials
- thermodynamics and calorimetric analyses
- Seismic Imaging and Inversion Techniques
- Cosmology and Gravitation Theories
- Molecular Spectroscopy and Structure
- Advanced Scientific Research Methods
- International Science and Diplomacy
- Hydrology and Sediment Transport Processes
Michigan State University
2022
Panjab University
1985-2021
Queen Mary University of London
1963
University College London
1957-1959
The formation of the fragments in a reaction is addressed by modifying minimum spanning tree method using thermal binding energies. Each fragment subjected to fulfillment energy. Our detailed investigation covering different masses, incident energies, and impact parameters indicates significant role energies over that cold matter.
Abstract In this work, the position and momentum space information densities of Eckart potential are graphically demonstrated their properties studied. The have quite an asymmetric shape depending on values quantum numbers. entropy is obtained Bialynicki‐Birula Mycielski inequality numerically saturated for some parameters potential. It shown that with increasing depth.
The reactions of $^{40}\mathrm{Ar}+^{45}\mathrm{Sc}$ are studied using the quantum molecular dynamics (QMD) model at various incident energies. phase space generated QMD is coupled with clusterization algorithms to identify fragments. obtained charge yield intermediate mass fragments ($3\ensuremath{\le}{Z}_{f}\ensuremath{\le}12$) fitted power law $[Y({Z}_{f})\ensuremath{\propto}{Z}_{f}^{\ensuremath{-}\ensuremath{\tau}}]$ and exponential fits...
Integrated ichnology, sedimentology and sequence stratigraphy of the Lower Quartzite Member to Arkosic Sandstone Koti Dhaman Formation (Cambrian Series 2, Stage 4), Tal Group, Nigali Dhar Syncline, Lesser Himalayan lithotectonic zone are presented. Trilobite traces Gondwanan affinity i.e., Cruziana salomonis, fasciculata, Rusophycus dispar burjensis recorded along with Arenicolites isp. Skolithos from Member. A rich diverse ichnoassemblage attributed ichnofacies is described for first time...
We study multifragmentation within the framework of a quantum molecular dynamics model using different binding energy formulae in secondary algorithm; namely, minimum spanning tree approach. A comparison theoretical results with experimental data over wide range energy, mass and impact parameter is also presented. Our detailed analysis shows an insignificant difference energies when used at finite temperatures on fragmentation pattern which, other hand, becomes significant for cold matter.
Employing the quantum molecular dynamics (QMD) approach for nucleus-nucleus collisions, we test predictive power of energy-based clusterization algorithm, i.e., simulating annealing algorithm (SACA), to describe experimental data charge distribution and various event-by-event correlations among fragments. The calculations are constrained into Fermi-energy domain and/or mildly excited nuclear matter. Our detailed study spans over different system masses, system-mass asymmetries colliding...
Abstract We study the emission of fragments in central collisions light and heavily charged systems 40 Ar+ 45 Sc 84 Kr+ 197 Au, respectively, using Quantum Molecular Dynamics (QMD) model as primary model. The are identified an energy based clusterization algorithm, i.e., Simulated Annealing Clusterization Algorithm (SACA). charge distributions intermediate mass [3≤ ≤12] fitted with power-law ( ) exponential fits order to extract parameters τ whose minimum values also sometimes linked onset...
We report the first evidence for $h_{b}(\text{2P}) \to \Upsilon(\text{1S})\eta$ transition with a significance of $3.5$ standard deviations. The decay branching fraction is measured to be $\mathcal{B}[h_{b}(\text{2P}) \Upsilon(\text{1S})\eta]=(7.1 ~^{+3.7} _{-3.2}\pm 0.8)\times10^{-3}$, which noticeably smaller than expected. also set upper limits on $\pi^0$ transitions \Upsilon(\text{1S})\pi^0] < 1.8\times10^{-3}$, and $\mathcal{B}[h_{b}(\text{1P})\to at $90\%$ confidence level. These...
We study the rise and fall behavior in multiplicity of intermediate mass fragments produced asymmetric reactions 36S+ 198Pt using isospin-dependent quantum molecular dynamics model. use different definitions according to various experimental studies. find that one or other definition does not alter results significantly.
Machine Learning (ML) algorithms have been demonstrated to be capable of predicting impact parameter in heavy-ion collisions from transport model simulation events with perfect detector response. We extend the scope ML application experimental data by incorporating realistic response S$\pi$RIT Time Projection Chamber into generated UrQMD resemble data. At 3 fm, predicted is 2.8 fm if used for training and testing; 2.4 included testing, 5.8 trained applied testing that has The last result not...
Using isospin-dependent quantum molecular dynamics (IQMD) approach, we performed a theoretical investigation of the evolution various kinds fragments in heavy and superheavy-ion reactions intermediate/medium energy domain. We demonstrated direct impact symmetry Coulomb interactions on fragments. Final fragment spectra (yields) obtained from analysis heavy/super-heavy ion at different reaction conditions show high sensitivity towards less significant to forms. No inconsistent pattern...
We study the role of momentum-dependent interactions on fragment structures at balance energies for semi-peripheral collisions over a wide range system masses using quantum molecular dynamics (QMD) model. find meagre fragments in case lighter masses. But as we go towards higher masses, effect increases free nucleons, light charged particles and intermediate mass corresponding energies.
We discuss the stability of fragments identified by secondary algorithms used to construct within quantum molecular dynamics model. For this purpose we employ three different for fragment identification. 1) The conventional minimum spanning tree (MST) method based on spatial correlations, 2) an improved version MST with additional binding energy constraints cold nuclear matter, 3) and that hot matter. find significant role thermal energies over matter energies. Significant is observed...