A5088580372- Nuclear physics research studies
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Astronomical and nuclear sciences
- Quantum Chromodynamics and Particle Interactions
- Advanced Chemical Physics Studies
- Astro and Planetary Science
- Quantum, superfluid, helium dynamics
- Rare-earth and actinide compounds
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear reactor physics and engineering
- Particle accelerators and beam dynamics
- Magnetism in coordination complexes
- Solid-state spectroscopy and crystallography
- Crystal Structures and Properties
- Electron and X-Ray Spectroscopy Techniques
- Inorganic Fluorides and Related Compounds
- Advanced NMR Techniques and Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Radiation Detection and Scintillator Technologies
- Inorganic Chemistry and Materials
- Spacecraft and Cryogenic Technologies
- Surface and Thin Film Phenomena
- Radiopharmaceutical Chemistry and Applications
- Atomic and Subatomic Physics Research
Indian Institute of Technology Roorkee
2025
Banaras Hindu University
2017-2024
Manipal University Jaipur
2023
A family of four odd parity bands in 127Xe has been investigated via in-beam γ-ray spectroscopy and conclusive evidence for the first second phonon longitudinal wobbling excitations found. Spectroscopic measurements confirm predominant E2 character ΔI=1 transitions between bands. This provides experimental mode associated with a neutron configuration.
Transverse wobbling was investigated in the $^{151}\mathrm{Eu}$ nucleus by populating excited states using $^{148}\mathrm{Nd}(^{7}\mathrm{Li}$, $4\mathrm{n})^{151}\mathrm{Eu}$ at a beam energy of 30 MeV. Three new interconnecting transitions have been placed between two negative parity bands. The M1/E2 character $\mathrm{\ensuremath{\Delta}}I=1$ bands extracted from mixing ratios ${R}_{\mathrm{DCO}}$ and linear polarization method. spin different also assigned. dominant E2 interlinking yrast...
Abstract The high spin states of 136Ce (Z=58) were investigated via 124Sn(16O, 4n)136Ce fusion evaporation reaction at Ebeam = 90 MeV. γ−γ coincidence technique is used for placing the γ−transition. In level scheme, and parity levels have been assigned on basis results angular correlation linear polarisation measurements respectively. bands based yrast Iπ 10+ isomeric state non-yrast are established. structures these also systematically compared with band neighboring nuclei.
High-spin states in 217Ac are reported up to 3.9-MeV excitation energy and 𝐼𝜋=41/2+ where 22 transitions newly observed. The structure of the yrast near-yrast below 29/2+ isomer is revisited. level above established with firm spin parity assignments. Large-basis shell-model calculations Kuo-Herling particle effective interaction performed compare experimentally observed energies theoretical predictions. A comparison systematics 𝑁=128 isotones suggests that structures result from a weak...
Lifetime measurements have been carried out for the levels of negative parity yrast sequence in $^{103}\mathrm{Pd}$ nucleus using Doppler shift attenuation method. The were populated via $^{94}\mathrm{Zr}(^{13}\mathrm{C}, 4n\ensuremath{\gamma})^{103}\mathrm{Pd}$ fusion-evaporation reaction at a beam energy 55 MeV. De-exciting $\ensuremath{\gamma}$ rays detected by utilizing Indian National Gamma Array. extracted transition probabilities and other auxiliary observations indicate that may be...
Excited states in $^{127}\mathrm{Xe}$ were populated via $^{122}\mathrm{Sn}{(}^{9}\text{Be},4n\ensuremath{\gamma})$ fusion-evaporation reaction at ${E}_{\text{beam}}=48$ MeV. A rotational band above an isomeric state 2730.3 keV has been established. ${J}^{\ensuremath{\pi}}=23/{2}^{+}$ assigned unambiguously to the bandhead. Structural features, configuration, and reduced hindrance factor per degree of $K$-forbiddenness (${f}_{\ensuremath{\nu}}$) have discussed context neighboring nuclei....
A self-supporting 122Sn target has been fabricated via rolling of an ingot 99.3% enriched at the laboratory Inter-University Accelerator Centre, New Delhi. The isotopic purity verified. prepared used in a γ-ray spectroscopy experiment to study high spin states Xe and Te nuclei. Relative cross-sections different evaporation channels have extracted from experimental data compared with same estimated by Monte-Carlo code, namely, Projection Angular-momentum Coupled Evaporation (PACE4)....
The reduced electric quadrupole transition rates have been calculated for the states of negative parity bands in [Formula: see text]Cd nuclei using semiclassical model (SCM). are found to be decreasing with increasing spin above text] and dynamic moment inertia higher almost constant. B(E2) values show better agreement experimental text]Cd. results both a very rapidly value ratio spin, suggesting antimagnetic rotational character lying spins text], respectively.
Excited states of 127Xe were populated in the 122Sn(9Be, 4nγ) fusion-evaporation reaction at a beam energy 48 MeV. A sequence ΔI = 2 γ-transitions has been observed above Iπ 19/2+ state 2307 keV. Spin and parity belonging to this band have assigned firmly. The dynamic moment inertia is found be low almost constant as function angular momentum. Observed experimental features along with results theoretical semiclassical model calculation suggest an antimagnetic rotational character for band.
Excited states of 127 Xe were populated via fusion-evaporation reaction. A level at 2306.7 keV has been established instead the previously reported two different levels 2307 keV. assigned to this on basis DCO ratio and linear polarization asymmetry decaying γ -rays. weak -ray 840.2 keV, from state state, also identified. Results are compared with neighboring isotopes.
High spin states in 127I were populated via 124Sn(7Li, 4nγ) fusion-evaporation reaction at Ebeam = 33 MeV. Level scheme of has been updated by placing new γ-rays and also confirming the spin/parity several energy levels. Two levels Ex 2628 3199 keV have identified which are found to decay into negative parity πh11/2 band. These two earlier reported 3502 3989 interpreted as γ-vibrational on basis their pattern. positive three-quasiparticle bands above Iπ 23/2+ 2901 3060 be a possible...
Levels in the 112Sn nucleus have been excited by inelastic scattering with 35Cl projectile at Elab=195MeV. The Doppler affected γ-ray peak arising from decay of 2+1 level has analyzed, using updated methodologies, to extract lifetime and corresponding electric quadrupole (E2) transition probability, B(E2;0+g.s.→2+1). present result is discrepant respect results reported existing measurements, but compliance independent systematic measurements low-lying E2 strengths stable even-mass Sn...
In this article, we construct the [sc] A V -[sc] -type tensor current to study mass and width of X(4274) with QCD sum rules in detail.The predicted M X = (4.27± 0.09) GeV for J P C 1 ++ tetraquark state is excellent agreement experimental data 4273.3± 8.3 +17.2 -3.6 MeV from LHCb Collaboration.The central value Γ (X(4274) → J/ψφ) 47.9MeV 56 ± 11 +8 -11 present work supports assigning be theA a relative -wave between diquark antidiquark constituents.Furthermore, obtain -+ as byproduct.
Abstract High spin states in 104 Pd were populated via 94 Zr( 13 C, 3n γ ) fusion-evaporation reaction at a beam energy of 55 MeV. The Indian National Gamma Array was utilized to detect the de-exciting -rays. Lifetimes negative parity bands have been determined using Doppler shift attenuation method. present lifetime results suggest moderate quadrupole deformation ( β 2 ≈ 0.2) for bands. Woods–Saxon total Routhian surface calculations also carried out which predicted similar these In...
High-spin states in the transitional $^{217}$Ac nucleus are established up to 3.8 MeV excitation energy and $I^{\pi} =$ 41/2$^+$ with addition of around 20 new transitions. The structure yrast near-yrast below 29/2$^+$ isomer is revisited. inconsistencies level schemes reported earlier resolved. above for first time. Large-basis shell-model calculations KHPE interaction performed compare experimentally observed energies theoretical predictions. A comparison systematics N = 128 isotones...