A5070172587- Nuclear physics research studies
- Nuclear Physics and Applications
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Nuclear reactor physics and engineering
- Quantum Chromodynamics and Particle Interactions
- Advanced Chemical Physics Studies
- Synthesis and characterization of novel inorganic/organometallic compounds
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- High-Energy Particle Collisions Research
- Crystallization and Solubility Studies
- Particle physics theoretical and experimental studies
- Coordination Chemistry and Organometallics
- X-ray Diffraction in Crystallography
- Radiation Detection and Scintillator Technologies
- Organometallic Complex Synthesis and Catalysis
- Advanced NMR Techniques and Applications
- Atomic and Subatomic Physics Research
- Graphite, nuclear technology, radiation studies
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear Materials and Properties
- Carbon dioxide utilization in catalysis
- Fractal and DNA sequence analysis
- COVID-19 epidemiological studies
- Chemical Reactions and Mechanisms
Bhabha Atomic Research Centre
2001-2024
Homi Bhabha National Institute
2017-2024
Mody University of Science and Technology
2018
Aurora College
1996-2001
University of Toronto
1996-2001
North Carolina State University
1999
McMaster University
1999
Colgate University
1997
Lund University
1993
Dr. Bhim Rao Ambedkar University
1978
Transverse momentum spectra for charged hadrons and neutral pions in the range 1 GeV/c<p(T)<5 GeV/c have been measured by PHENIX experiment at RHIC Au+Au collisions root square[s(NN)] = 130 GeV. At high p(T) from peripheral nuclear are consistent with scaling p+p average number of binary nucleon-nucleon collisions. The central significantly suppressed when compared to binary-scaled expectation, also similarly collisions, indicating a novel nuclear-medium effect energies.
A simple closed-form analytic expression for the heavy-ion reaction cross section, involving nuclear densities of colliding ions and nucleon-nucleon has been obtained within framework Glauber model modified Coulomb field effect. Reaction sections a large number systems have predicted reasonably well over an energy range beginning with barrier to few GeV/nucleon.
A regular pattern, revealing the leading role of light-fragment nuclear charge, is found to emerge from a consistent analysis experimental information collected recently on low-energy asymmetric fission neutron-deficient nuclei around lead. The observation corroborated by theoretical investigation within microscopic framework, suggesting importance proton configurations driven quadrupole-octupole correlations. This in contrast earlier interpretations terms dominant neutron shells. survey...
The aromatic stabilization of cyclic phosphenium cations (general type C2N2P+) was studied by experimental methods (synthesis, multinuclear NMR, single crystal X-ray crystallography) and quantum chemical calculations (ab initio methods). structures the 1,3,2-diazaphosphole derivatives [(tBuN–CH=CH–NtBu)P+]Cl− (1), (tBuN–CH2–CH2–NtBu)P–Cl (2), [(tBuN–CH=CH–NtBu)P]+PF6− (3) [(tBuN–CH2–CH2-NtBu)]P+PF6− (4) were examined diffraction. chloro phosphane [(tBuN–CH=CH–NtBu)P]+Cl− (1) has an ionic...
A number of tert-butyl-substituted, cyclic, saturated and unsaturated diaminocarbene, diaminosilylene, diaminogermylene compounds were investigated using inner shell electron energy loss spectroscopy (ISEELS) ab initio calculations. These compounds, each which contains a divalent group 14 element (C, Si, Ge), are particular interest since they stable indefinitely, thus, readily accessible for detailed spectroscopic analysis. The C 1s N spectra the hydrogenated tetravalent analogues carbene,...
The Glauber model approach for the description of elastic scattering has been extended to low energy range. overlap integral nuclear densities derived in our previous paper calculated along a trajectory characterized by distance closest approach, account deviation projectile due Coulomb field. only ingredients this formalism are colliding ions and elementary nucleon-nucleon amplitude. At energies we have given prescription calculation ${\mathrm{\ensuremath{\alpha}}}_{\mathit{N}\mathit{N}}$,...
The complete and incomplete fusion along with one neutron stripping pickup cross sections for the $^{6}\mathrm{Li}+^{124}\mathrm{Sn}$ system are measured using online offline characteristic $\ensuremath{\gamma}$-ray detection techniques. (CF) at energies above Coulomb barrier found to be suppressed by $\ensuremath{\sim}34%$ compared coupled channel calculations. This suppression observed in is commensurate total (ICF) sections. There a distinct feature ICF sections, i.e., $d$ capture...
The ($p$,$n$) reaction excitation functions for eleven nuclei from $A=45 \mathrm{to} 80$ measured at proton energies below \ensuremath{\sim}5 MeV have been analyzed utilizing the optical model. real potential parameters used in present work obtained by suitably combining model determined between 3 and 60 MeV. Large energy dependence of 5 has observed. imaginary depths analysis exhibit an anomalous behavior when plotted as a function mass number $A$. By low intermediate data, attempt made to...
The origin of the large $\ensuremath{\alpha}$-particle production cross sections in systems involving weakly bound $^{7}\mathrm{Li}$ projectiles has been investigated by measuring all possible fragment-capture as well complete fusion using particle-$\ensuremath{\gamma}$ coincidence, in-beam, and off-beam $\ensuremath{\gamma}$-ray counting techniques for $^{7}\mathrm{Li}+^{93}\mathrm{Nb}$ system at near Coulomb barrier energies. Almost inclusive yield accounted for. While $t$-capture...
Asymmetric low-energy fission of neutron-deficient nuclei around lead is addressed with the measurement fragment mass and total kinetic energy properties for fissioning system $^{198}\mathrm{Po}$ produced in heavy-ion fusion. Interpretation such a transitional nucleus at finite excitation challenging. The presence asymmetric partitions suggested by observed weak dependence on nonmonotonic evolution fragment-mass distribution width energy. interpretation supported microscopic model...
To disentangle the role of shell effects and dynamics, fission fragment mass distributions 191Au, a nucleus in newly identified island asymmetric sub-lead region, have been measured down to excitation energy ≈20 MeV above barrier via two different entrance channels, viz. 16O+175Lu 37Cl+154Sm reactions. Apart from having signature both cases, clear experimental evidence quasifission has observed Cl induced reaction, that also substantiated by theoretical calculations. This crucial along with...
Differential cross sections for the elastic scattering of alpha particles from $^{209}\mathrm{Bi}$ have been measured over a wide angular range at number energies between 24 and 70 MeV. The present data along with existing in this energy analyzed using optical model both phenomenological double-folded potentials. application dispersion relation Mahaux, Ng\^o, Satchler allows reproduction observed dependence real part potential. A nearside-farside decomposition clearly reveals large-angle...
The total ($p, n$) reaction cross sections, integrated over the $4\ensuremath{\pi}$ solid angle and summed all neutron groups, for $^{50}\mathrm{Ti}$, $^{54}\mathrm{Cr}$, $^{59}\mathrm{Co}$ have been measured as a function of proton energy in range 3.0-4.9, 2.2-5.2, 2.0-5.1 MeV 5 keV steps, respectively. No strong isobaric analog resonances were seen data. fluctuations excitation functions analyzed to extract ${〈\ensuremath{\Gamma}〉}_{\mathrm{av}}$ values using "counting maxima" method....
The differential elastic scattering cross section of a few heavy-ion systems, in the energy range 8--100 MeV/nucleon, has been studied framework Coulomb-modified Glauber model. Ingredients this formalism are densities colliding ions and elementary nucleon-nucleon amplitude. only free parameter ${\ensuremath{\alpha}}_{\mathrm{NN}},$ ratio real to imaginary part forward amplitude, is varied fit data. Elastic angular distributions using realistic two-parameter Fermi surface-matched Gaussian...