A5084635951- Nuclear physics research studies
- Quantum Chromodynamics and Particle Interactions
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Advanced NMR Techniques and Applications
- Astronomical and nuclear sciences
- Advanced Chemical Physics Studies
- Rare-earth and actinide compounds
- Quantum, superfluid, helium dynamics
- X-ray Spectroscopy and Fluorescence Analysis
- Atomic and Subatomic Physics Research
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Particle physics theoretical and experimental studies
- Astro and Planetary Science
- High-Energy Particle Collisions Research
- Quantum chaos and dynamical systems
- Crystallography and Radiation Phenomena
- Nuclear reactor physics and engineering
- Adsorption and biosorption for pollutant removal
- Muon and positron interactions and applications
- Inorganic Fluorides and Related Compounds
- Neutrino Physics Research
- Cold Atom Physics and Bose-Einstein Condensates
- Radiation Detection and Scintillator Technologies
University of Notre Dame
2016-2025
Joint Institute for Nuclear Astrophysics
2013-2025
Sawai ManSingh Medical College and Hospital
2020-2023
UGC DAE Consortium for Scientific Research
2004-2023
UGC-DAE Consortium for Scientific Research, Kolkata Centre
2014-2023
Guru Teg Bahadur Hospital
2016-2017
Animal Husbandry and Veterinary Department
2017
Kerala Veterinary and Animal Sciences University
2012-2017
Nanaji Deshmukh Veterinary Science University
2017
Punjab Technical University
2016-2017
The strength distributions of the giant monopole resonance (GMR) have been measured in even-A Sn isotopes (A=112-124) with inelastic scattering 400-MeV alpha particles angular range 0 degrees -8.5 . We find that experimentally observed GMR energies are lower than values predicted by theoretical calculations reproduce 208Pb and 90Zr very well. From data, a value Ktau = -550 +/- 100 MeV is obtained for asymmetry term nuclear incompressibility.
Inelastic scattering from ${}^{12}$C has been measured at extremely forward angles including 0 ${}^{\ensuremath{\circ}}$ using 386 MeV $\ensuremath{\alpha}$ particles to study the $\ensuremath{\alpha}$-cluster states around ${E}_{x}$ $\ensuremath{\sim}$ 10 MeV, especially 2${}^{+}$ state predicted by model. We have analyzed ($\ensuremath{\alpha}$,${\ensuremath{\alpha}}^{\ensuremath{'}}$) cross-section data both peak-fitting and multipole decomposition techniques. A ${E}_{x}=$ 9.84...
The first observation of superdeformation in the mass region A\ensuremath{\simeq}190 is reported. A rotational band twelve transitions with an average energy spacing 37 keV, moment inertia ${\mathrm{scrF}}^{(2)}$ 110 ${\ensuremath{\Elzxh}}^{2}$ ${\mathrm{MeV}}^{\mathrm{\ensuremath{-}}1}$, and quadrupole 18\ifmmode\pm\else\textpm\fi{}3 e b has been observed $^{191}\mathrm{Hg}$; this persists at low frequency. These results are excellent agreement a calculation that predicts ellipsoidal axis...
We have investigated the isoscalar giant resonances in Sn isotopes using inelastic scattering of 386-MeV alpha-particles at extremely forward angles, including 0deg. obtained completely "background-free inelastic-scattering spectra for over angular range 0deg--9deg and up to an excitation energy 31.5 MeV. The strength distributions various multipoles were extracted by a multipole decomposition analysis based on expected respective multipoles. find that centroid energies monopole resonance...
Two distinct sets of chiral-partner bands have been identified in the nucleus 133Ce. They constitute a multiple chiral doublet, phenomenon predicted by relativistic mean field (RMF) calculations and observed experimentally here for first time. The properties these are good agreement with results based on combination constrained triaxial RMF theory particle-rotor model.
Electromagnetic transition probabilities have been measured for the intraband and interband transitions in two sequences nucleus (135)Nd that were previously identified as a composite chiral pair of rotational bands. The character bands is affirmed it shown their behavior associated with from vibrational into static regime.
The properties of the isoscalar giant monopole resonance have been studied with inelastic $\ensuremath{\alpha}$ scattering between $0\ifmmode^\circ\else\textdegree\fi{}\ensuremath{\le}{\ensuremath{\theta}}_{L}\ensuremath{\le}8\ifmmode^\circ\else\textdegree\fi{}$, where quadrupole and states can be distinguished by their angular distributions. Data were taken for $^{12}\mathrm{C}$, $^{27}\mathrm{Al}$, $^{40}\mathrm{Ca}$, $^{48}\mathrm{Ti}$, $^{58}\mathrm{Ni}$, $^{64,66}\mathrm{Zn}$,...
A pair of transverse wobbling bands has been observed in the nucleus $^{135}$Pr. The is characterized by $\Delta I$ =1, E2 transitions between bands, and a decrease energy confirms its nature. Additionally, transition from to three-quasiparticle band comprised strong magnetic dipole observed. These observations conform well results calculations with Tilted Axis Cranking (TAC) model Quasiparticle Triaxial Rotor (QTR) Model.
The 12C excitation energy spectra populated in both proton and α-particle inelastic scattering measurements are examined. data indicate the existence of a 2+ state at Ex=9.75(0.15) MeV with width 750(150) keV. It is believed that this corresponds to 7.65 MeV, 0+, Hoyle state, which acts as main path by carbon synthesized stars. A simultaneous R-matrix analysis two sets indicates possesses very large α-reduced width, approaching Wigner limit. This would associated highly clustered structure....
Lead-208 is the heaviest known doubly magic nucleus and its structure therefore of special interest. Despite this magicity, which acts to provide a strong restorative force toward sphericity, it exhibit both octupole correlations some strongest quadrupole collectivity observed in systems. In Letter, we employ state-of-the-art experimental equipment conclusively demonstrate, through four Coulomb-excitation measurements, presence large, negative, spectroscopic moment for vibrational <a:math...
High-spin states in 135Nd were populated with the 110Pd(30Si,5n)135Nd reaction at a 30Si bombarding energy of 133 MeV. Two DeltaI=1 bands close excitation energies and same parity observed. These are directly linked by DeltaI=2 transitions. The chiral nature these two is confirmed comparison three-dimensional tilted axis cranking calculations. This first observation three-quasiparticle structure establishes primarily geometric this phenomenon.
The systematic behavior of the isoscalar giant dipole resonance (ISGDR) in $^{90}\mathrm{Zr}$, $^{116}\mathrm{Sn}$, $^{144}\mathrm{Sm}$, and $^{208}\mathrm{Pb}$ is studied with inelastic $\ensuremath{\alpha}$ scattering at ${E}_{\ensuremath{\alpha}}=386\phantom{\rule{0.3em}{0ex}}\mathrm{MeV}$. Multipole-decomposition analysis applied to extract excitation strengths resonances from $(\ensuremath{\alpha},{\ensuremath{\alpha}}^{\ensuremath{'}})$ differential cross sections...
The collective wobbling mode, the strongest signature for rotation of a triaxial nucleus, has previously been seen only in few Lu isotopes spite extensive searches nearby isotopes. A sequence transitions N=94 Ta167 nucleus exhibiting features similar to those attributed bands nuclei now found. This band feeds into πi13/2 at relative energy that established and its dynamic moment inertia alignment properties are nearly identical i13/2 structure over significant frequency range. Given these...
The second-phonon (nω=2) wobbling band has been established in the nucleus 135Pr. Conclusive evidence for its nature comes from ΔI=1, E2 character of transitions between new and previously identified transverse wobbler (nω=1) this nucleus. Theoretical calculations framework quasiparticle triaxial rotor projected shell models are found to be good agreement with experimental results.