NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = S.K.Dhiman Found 42 matches. 2024KU03 Eur.Phys.J. A 60, 17 (2024) R.Kumar, A.Sharma, M.Kumar, S.Kumar, V.Thakur, S.K.Dhiman Constraining equations of state for massive neutron star within relativistic mean field models
doi: 10.1140/epja/s10050-024-01237-2
2023KU10 Phys.Rev. C 107, 055801 (2023) M.Kumar, S.Kumar, V.Thakur, R.Kumar, B.K.Agrawal, S.K.Dhiman CREX- and PREX-II-motivated relativistic interactions and their implications for the bulk properties of nuclear matter and neutron stars NUCLEAR STRUCTURE 16,24O, 40,48Ca, 56,68,78Ni, 88Sr, 90Zr, 100,116,132Sn, 144Sm, 208Pb; calculated binding energy, charge radii, neutron skin thickness. Calculations using relativistic interactions BSRV-CREX, BSRV-PREX, and BSRV-CPREX for the relativistic mean-field model tuned in accordance with skin thickness experimental results from CREX and PREX-II. Obtained symmetry energy parameters, bulk nuclear matter properties, maximum gravitational mass and radius of neutron star.
doi: 10.1103/PhysRevC.107.055801
2023KU11 Phys.Rev. C 107, 055805 (2023) R.Kumar, M.Kumar, V.Thakur, S.Kumar, P.Kumar, A.Sharma, B.K.Agrawal, S.K.Dhiman Observational constraint from the heaviest pulsar PSR J0952-0607 on the equation of state of dense matter in relativistic mean field model NUCLEAR STRUCTURE 48Ca, 208Pb; calculated neutron skin thickness. Calculations based on HPU1, HPU2, and HPU3 parametrizations for the relativistic mean field (RMF) model, which were generated in the light of the heaviest observed neutron star for the black widow pulsar PSR J092-0607. Obtained bulk nuclear matter properties, symmetry energy parameters, neutron star properties. Comparison to CREX and PREX-II results and other calculations.
doi: 10.1103/PhysRevC.107.055805
2023KU24 Phys.Rev. C 108, 055802 (2023) S.Kumar, M.Kumar, R.Kumar, S.K.Dhiman Implications of isoscalar and isovector scalar meson mixed interaction on nuclear and neutron star properties
doi: 10.1103/PhysRevC.108.055802
2023SH23 Nucl.Phys. A1040, 122762 (2023) A.Sharma, M.Kumar, S.Kumar, V.Thakur, R.Kumar, S.K.Dhiman New equations of state for dense nuclear matter properties
doi: 10.1016/j.nuclphysa.2023.122762
2023TH01 Phys.Rev. C 107, 015803 (2023) V.Thakur, R.Kumar, P.Kumar, M.Kumar, C.Mondal, K.Huang, J.Hu, B.K.Agrawal, S.K.Dhiman Relativistic approach for the determination of nuclear and neutron star properties in consideration of PREX-II results NUCLEAR STRUCTURE A=20-220; calculated charge rms radii, binding energy. 48Ca, 208Pb; calculated neutron skin thickness. Obtained properties of nonrotating neutron star. New parametrization of the relativistic mean-field (RMF) model obtained by fit to the available experimental data on binding energy, charge rms radii and taking into account recent PREX-II results on neutron skin thickness. Comparison to results obtained with different parametrizations - NL3, IOPB-I, FSUGarnet, Big Apple.
doi: 10.1103/PhysRevC.107.015803
2022KU16 Nucl.Phys. A1022, 122429 (2022) V.Kumar, P.Kumar, V.Thakur, S.Thakur, S.K.Dhiman The microscopic studies of the even-even 12-28O, 34-60Ca, 48-80Ni, and 100-134Sn using covariant density functional theory NUCLEAR STRUCTURE 12,14,16,18,20,22,24,26,28O, 34,36,38,40,42,44,46,48,50,52,54,56,58,60Ca, 48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80Ni, 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134Sn; calculated potential energy surfaces, binding and two-neutron separation energies, charge radii, neutron and proton rms radii, neutron skin thickness; deduced covariant mass data and Skyrme mass data for D1S, NL-SH, NL3, DD-ME2, DD-MEδ, DD-PC1, NL3*, SkM*, SkP, SLy4, SV-min, UNEDF0, and UNEDF1 parameterizations.
doi: 10.1016/j.nuclphysa.2022.122429
2022KU30 Eur.Phys.J. A 58, 143 (2022) P.Kumar, V.Thakur, S.Thakur, V.Kumar, A.Sharma, R.Kumar, S.K.Dhiman Effect of nuclear deformation on proton bubble structure in Z=14 isotopes NUCLEAR STRUCTURE 28,30,32,34,36,38,40,42Si; calculated potential energy surfaces (PESs), charge density distributions, proton depletion fractions, proton and neutron density distributions, proton density profile, occupation probabilities for spherically and triaxially constrained single-particle orbits by employing Covariant Density Functional Theory with DD-ME2 interaction; deduced the effect of deformation proton bubble candidates in Si isotopic chain.
doi: 10.1140/epja/s10050-022-00801-y
2022SH01 Nucl.Instrum.Methods Phys.Res. B511, 1 (2022) A.Sharma, S.K.Dhiman, S.Muralithar, R.P.Singh, S.Chakraborty, K.Katre, S.R.Abhilash, D.Kabiraj, Meenakshi, G.R.Umapathy Fabrication and characterization of 169Tm target for Nuclear Lifetime Measurements NUCLEAR REACTIONS 169Tm(18O, 4n)183Ir, E=94 MeV; measured reaction products, Eγ, Iγ, X-rays, γ-X-ray coin.; deduced γ-ray energies and relative intensities, high-spin states. Doppler broadened lineshapes of gamma transitions. The target laboratory of Inter-University Accelerator Centre, New Delhi. Two HPGe low energy photon spectrometer (LEPS) of the Indian National Gamma array (INGA).
doi: 10.1016/j.nimb.2021.10.014
2022TH04 Eur.Phys.J. A 58, 93 (2022) S.Thakur, V.Thakur, R.Kumar, S.K.Dhiman Structural properties of rotating hybrid compact stars with color-flavor-locked quark matter core and their tidal deformability
doi: 10.1140/epja/s10050-022-00744-4
2022TH05 Phys.Rev. C 106, 025803 (2022) V.Thakur, R.Kumar, P.Kumar, V.Kumar, B.K.Agrawal, S.K.Dhiman Relativistic mean field model parametrizations in the light of GW170817, GW190814, and PSR J0740+6620 NUCLEAR STRUCTURE 16O, 40,48Ca, 56Ni, 88Sr, 90Zr, 116,132Sn, 208Pb; calculated binding energy per nucleon, charge root mean square radii. Relativistic mean field (RMF) model with three new parametrizations DOPS1, DOPS2, and DOPS3 (named after the Department of Physics Shimla).
doi: 10.1103/PhysRevC.106.025803
2022TH07 Phys.Rev. C 106, 045806 (2022) V.Thakur, R.Kumar, P.Kumar, V.Kumar, M.Kumar, C.Mondal, B.K.Agrawal, S.K.Dhiman Effects of an isovector scalar meson on the equation of state of dense matter within a relativistic mean field model NUCLEAR STRUCTURE 16,24O, 40,48Ca, 56,78Ni, 88Sr, 90Zr , 100,116,132Sn, 208Pb; analyzed experimental values of binding energy, charge radii, neutron skin thickness; deduced mass-radius relation of a neutron star, variation of dimensionless tidal deformability with respect to gravitational mass. Calculations within relativistic mean field (RMF) framework withadded freedom in the isospin channel through the δ meson.
doi: 10.1103/PhysRevC.106.045806
2021KU06 Eur.Phys.J. A 57, 36 (2021) P.Kumar, V.Thakur, S.Thakur, V.Kumar, S.K.Dhiman Nuclear shape evolution and shape coexistence in Zr and Mo isotopes NUCLEAR STRUCTURE 88,90,92,94,96,98,100,102,104,106,108,110,112,114Zr, 98,100,102,104,106,108,110,112,114,116Mo; calculated potential energy surfaces, binding energies, two-neutron separation energies, nuclear charge radii, neutron single-particle energy levels and proton occupation probabilities. Comparison with available data.
doi: 10.1140/epja/s10050-021-00346-6
2021KU09 Phys.Scr. 96, 025301 (2021) V.Kumar, P.Kumar, V.Thakur, S.Thakur, S.K.Dhiman Microscopic study of shape evolution and ground-state properties of Iodine isotopes NUCLEAR STRUCTURE 108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144I; calculated ground-state properties are the nuclear electric quadrupole moment, single-particle energy levels, the binding energy per nucleon, pairing energy, one-neutron separation energy, two-neutron separation energy, nuclear charge radius, neutron rms radius, proton rms radius, and neutron skin thickness using Hartree-Fock-Bogoliubov Model while employing the axially deformed single-particle harmonic oscillator basis for the expansion of quasiparticle wave functions.
doi: 10.1088/1402-4896/abcf66
2021KU13 Acta Phys.Pol. B52, 401 (2021) P.Kumar, V.Thakur, S.Thakur, V.Kumar, S.K.Dhiman Evolution of Nuclear Shapes in Light Nuclei from Proton- to Neutron-rich Side NUCLEAR STRUCTURE 20,22,24,26,28,30,32,34,36,38,40,42Mg, 22,24,26,28,30,32,34,36,38,40,42,44Si, 26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56S, 28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58Ar; calculated binding energies, quadrupole deformation parameter, charge radii, and isotope shifts using the relativistic Hartree-Bogoliubov (RHB) model with density-dependent meson-exchange interaction and separable pairing. Comparison with available data.
doi: 10.5506/aphyspolb.52.401
2021KU17 Int.J.Mod.Phys. E30, 2150049 (2021) V.Kumar, P.Kumar, V.Thakur, S.Thakur, S.K.Dhiman Microscopic study of shape evolution and some important ground state properties of 190-210Au isotopes NUCLEAR STRUCTURE 190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210Au; calculated shape evolution, quadrupole deformation parameter, nuclear electric quadrupole moment, single-particle energy levels, the binding energy per nucleon, nuclear charge radius, neutron rms radius, proton rms radius and neutron skin thickness within the framework of the Hartree-Fock-Bogoliubov Model.
doi: 10.1142/S021830132150049X
2021SH09 Phys.Rev. C 103, 024324 (2021) A.Sharma, R.Raut, S.Muralithar, R.P.Singh, S.S.Bhattacharjee, S.Das, S.Samanta, S.S.Ghugre, R.Palit, S.Jehangir, N.Rather, G.H.Bhat, J.A.Sheikh, S.S.Tiwary, Neelam, P.V.Madhusudhana Rao, U.Garg, S.K.Dhiman Evidence of antimagnetic rotational motion in 103Pd NUCLEAR REACTIONS 94Zr(13C, 4n)103Pd, E=55 MeV; measured Eγ, Iγ, half-lives of levels in the negative-parity yrast band by Doppler-shift attenuation method (DSAM) using the INGA array of 18 Compton suppressed HPGe clover detectors. 103Pd; deduced levels, J, π, B(E2), configurations, dynamic moment of inertia, antimagnetic rotational (AMR) band structure; calculated total Routhian surface (TRS) contour for the negative-parity yrast band in (β2cos(γ+30°), β2sin(γ+30°)) plane, and quasiparticle Routhians for proton and neutron using cranked-shell model. Comparison of spin versus angular frequency distribution and B(E2) values with tilted-axis cranked-shell model calculations based on the covariant density functional theory, and with semi-classical particle-rotor model calculations.
doi: 10.1103/PhysRevC.103.024324
2021TH08 Nucl.Phys. A1014, 122254 (2021) S.Thakur, P.Kumar, V.Thakur, V.Kumar, S.K.Dhiman Shape transitions and shell structure study in zirconium, molybdenum and ruthenium NUCLEAR STRUCTURE 78,80,82,84,86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126Zr, 82,84,86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130Mo, 90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130Ru; calculated potential energy curves, shell closure parameters, two neutron separation energies, root mean square radii, neutron skin thickness using density dependent meson exchange model DD-ME2 and density dependent point coupling models DD-PC1 and DD-PCX.
doi: 10.1016/j.nuclphysa.2021.122254
2021TH12 Acta Phys.Pol. B52, 1433 (2021) S.Thakur, P.Kumar, V.Thakur, V.Kumar, S.K.Dhiman Nuclear Shape Evolution in Palladium Isotopes NUCLEAR STRUCTURE 86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134Pd; calculated potential energy curves, binding energies, quadrupole deformation parameters, charge radii, two-neutron separation energies by employing density-dependent point-coupling parameter sets DD-PC1 and DD-PCX with separable pairing interaction; deduced prolate-oblate shape coexistence in 108Pd.
doi: 10.5506/APhysPolB.52.1433
2020KU16 Nucl.Phys. A1001, 121935 (2020) Microscopic study of shape evolution and ground state properties in even-even Cd isotopes using covariant density functional theory
doi: 10.1016/j.nuclphysa.2020.121935
2020TH02 Nucl.Phys. A1002, 121981 (2020) V.Thakur, P.Kumar, S.Thakur, S.Thakur, V.Kumar, S.K.Dhiman Microscopic study of the shell structure evolution in isotopes of light to middle mass range nuclides NUCLEAR STRUCTURE 24,26,28,30,32,34,36,38,40,42,44Si, 28,30,32,34,36,38,40,42,44,46,48S, 32,34,36,38,40,42,44,46,48,50,52Ar, 38,40,42,44,46,48,50,52,54,56,58Ca; analyzed evolution of shell structures in the even-even isotopes of silicon, sulphur, argon and calcium; calculated binding energy per nucleon using RHB theory.
doi: 10.1016/j.nuclphysa.2020.121981
2019TH06 Nucl.Phys. A992, 121623 (2019) A study of charge radii and neutron skin thickness near nuclear drip lines
doi: 10.1016/j.nuclphysa.2019.121623
2013SI24 Can.J.Phys. 91, 777 (2013) Y.Singh, S.K.Dhiman, M.Singh, C.Bihari, A.K.Varshney, K.K.Gupta, D.K.Gupta In search of empirical rule relating E2+1 and B(E2; 0+1 → 2+1) in asymmetric even-even nuclei of mass region A = 90-120
doi: 10.1139/cjp-2013-0107
2012GU12 Nucl.Phys. A886, 71 (2012) N.Guleria, S.K.Dhiman, R.Shyam A study of Λ hypernuclei within the Skyrme-Hartree-Fock model NUCLEAR STRUCTURE 8He, 9Li, 10Be, 10,11,12B, 12,13C, 16N, 16O, 28Si, 32S, 40Ca, 51V, 89Y, 139La, 208Pb Λ hypernuclei; calculated Λ hypernuclei binding energy, mass excess using RMF method with Skyrme interactions; deduced interaction parameters from fit to data. Also calculated mass-radius relations for neutron stars.
doi: 10.1016/j.nuclphysa.2012.05.005
2011MA56 Phys.Rev. C 84, 045804 (2011) Temperature and density dependence of asymmetric nuclear matter and protoneutron star properties within an extended relativistic mean field model
doi: 10.1103/PhysRevC.84.045804
2011RO31 Int.J.Mod.Phys. E20, 1687 (2011) Neutron-proton pairing correlation for the rotational motion of N = Z 72Kr, 76Sr, and 80Zr nuclei NUCLEAR STRUCTURE 72Kr, 76Sr, 80Zr; analyzed high-spin state properties of residual np interaction; deduced band crossing. Self-consistent Hartree-Fock-Bogoliubov equation.
doi: 10.1142/S0218301311019568
2010DH01 Nucl.Phys. A836, 183 (2010) S.K.Dhiman, G.Mahajan, B.K.Agrawal Properties of static limit and rotating equilibrium sequences of compact stars: Systematic correlations and constraints
doi: 10.1016/j.nuclphysa.2009.12.063
2010RO05 Pramana 74, 365 (2010) Influence of pairing in double beta decay of 48Ca RADIOACTIVITY 48Ca(2β-); calculated two-neutrino matrix elements, T1/2; deduced influence of np pairing.
doi: 10.1007/s12043-010-0033-8
2010RO30 Int.J.Mod.Phys. E19, 2265 (2010) Studies of 44Ti and 48Cr nuclei within variational mean field theory NUCLEAR STRUCTURE 44Ti, 48Ca; calculated single-particle energies, intrinsic quadrupole moment, occupation numbers, yrast levels, B(E2). HFB method, comparison with experimental data.
doi: 10.1142/S0218301310016648
2010SI07 Can.J.Phys. 88, 201 (2010) Y.Singh, C.Bihari, A.K.Varshney, S.K.Dhiman, K.K.Gupta, D.K.Gupta Ground and gamma band energy systematics in even xenon and barium nuclei NUCLEAR STRUCTURE 116,118,120,122,124,126,128,130Xe, 124,126,128,130,132,134Ba; calculated moment of inertia parameters for yrast, even and odd gamma bands. General Asymmetric Rotor Model.
doi: 10.1139/P09-093
2007DH05 Phys.Rev. C 76, 045801 (2007) S.K.Dhiman, R.Kumar, B.K.Agrawal Nonrotating and rotating neutron stars in the extended field theoretical model
doi: 10.1103/PhysRevC.76.045801
2006AG07 Phys.Rev. C 73, 034319 (2006) B.K.Agrawal, S.K.Dhiman, R.Kumar Exploring the extended density-dependent Skyrme effective forces for normal and isospin-rich nuclei to neutron stars NUCLEAR STRUCTURE 16,24O, 40,48Ca, 48,56,68,78Ni, 88Sr, 90Zr, 100,132Sn, 208Pb; binding energies, analyzed radii, single-particle energies; deduced parameters. Generalized Skyrme effective force.
doi: 10.1103/PhysRevC.73.034319
2006DA02 Phys.Rev. C 73, 015808 (2006) J.J.Das, V.M.Datar, P.Sugathan, N.Madhavan, P.V.Madhusudhana Rao, A.Jhingan, A.Navin, S.K.Dhiman, S.Barua, S.Nath, T.Varughese, A.K.Sinha, R.Singh, A.Ray, D.L.Sastry, R.G.Kulkarni, R.Shyam Astrophysical S17(0) factor from a measurement of the 2H(7Be, 8B)n reaction at Ec.m. = 4.5 MeV NUCLEAR REACTIONS 2H(7Be, 7Be), (7Be, 8B), E(cm)=4.5 MeV; measured σ(θ); deduced parameters. 7Be(p, γ), E=low; deduced astrophysical S-factor. Asymptotic normalization coefficient method.
doi: 10.1103/PhysRevC.73.015808
2006KU18 Phys.Rev. C 74, 034323 (2006) R.Kumar, B.K.Agrawal, S.K.Dhiman Effects of ω meson self-coupling on the properties of finite nuclei and neutron stars
doi: 10.1103/PhysRevC.74.034323
2005DH01 J.Phys.(London) G31, S1531 (2005) Structure of 8B and astrophysical S17 factor NUCLEAR STRUCTURE 7Be, 8B; calculated binding energies, radii, overlap function. Skyrme Hartree-Fock framework. NUCLEAR REACTIONS 7Be(p, γ), E=low; calculated astrophysical S-factor.
doi: 10.1088/0954-3899/31/10/026
2004DA33 Nucl.Phys. A746, 561c (2004) J.J.Das, V.M.Datar, P.Sugathan, N.Madhavan, P.V.Madhusudhana Rao, A.Jhingan, A.Navin, S.K.Dhiman, S.Barua, S.Nath, T.Varughese, A.K.Sinha, R.Singh, A.Ray, D.L.Shastry, R.G.Kulkarni, R.Shyam A new measurement of d(7Be, 8B)n reaction at Ec.m. = 4.5 MeV for the extraction of S17(0) factor using ANC method NUCLEAR REACTIONS 2H(7Be, 7Be), (7Be, 8B), E(cm)=4.5 MeV; measured σ(θ); deduced parameters. 7Be(p, γ), E=low; deduced astrophysical S-factor.
doi: 10.1016/j.nuclphysa.2004.09.090
2004DH02 J.Phys.(London) G30, 1465 (2004) Neutron-proton interaction and backbending in 48, 50Cr nuclei NUCLEAR STRUCTURE 48,50Cr; calculated rotational band levels, J, π, configurations, B(E2), quadrupole moments, role of neutron-proton interaction. Self-consistent Hartree-Fock-Bogoliubov approach, variation after angular momentum projection. Comparison with data.
doi: 10.1088/0954-3899/30/10/012
2004RA25 Yad.Fiz. 67, 2043 (2004); Phys.Atomic Nuclei 67, 2021 (2004) P.K.Raina, A.Shukla, P.K.Rath, B.M.Dixit, K.Chaturvedi, R.Chandra, S.K.Dhiman, A.J.Singh The np Interaction Effects on the Double-Beta Decay Nuclear Matrix Elements for Medium-Mass Nuclei RADIOACTIVITY 100Mo(2β-); 106Cd(2β+), (β+EC), (2EC); calculated 2ν-accompanied 2β-decay T1/2, matrix elements. Comparison with data.
doi: 10.1134/1.1825522
2003CH79 Phys.Rev. C 68, 054320 (2003) S.S.Chandel, S.K.Dhiman, R.Shyam Structure of 8B and astrophysical S17 factor in Skyrme Hartree-Fock theory NUCLEAR STRUCTURE 7Be, 7,8B, 8Li, 9C; calculated binding energies, radii, density distributions. Skyrme-Hartree-Fock framework. 8B deduced halo structure. NUCLEAR REACTIONS 7Be(p, γ), E=low; calculated asymptotic normalization coefficient, astrophysical S-factor.
doi: 10.1103/PhysRevC.68.054320
2001RA28 Phys.Rev. C64, 024310 (2001) Systematics of ββ Decay Sensitive Medium Mass Nuclei using Quadrupole-Quadrupole plus Pairing Interactions NUCLEAR STRUCTURE 100Mo, 100,104Ru, 104,110Pd, 110,114,116Cd, 114,116,124Sn, 124,128,130Te, 128,130Xe; calculated levels, J, π, transitions B(E2), quadrupole moments, proton-neutron interaction effects. Implications for 2β-decay discussed. RADIOACTIVITY 100Mo, 116Cd(2β-); calculated 2ν 2β-decay T1/2.
doi: 10.1103/PhysRevC.64.024310
1994DH03 Phys.Rev. C50, R2660 (1994) Two-Neutrino Double-Beta Decay Matrix Elements for Ground and Excited States of 76Ge and 82Se Nuclei RADIOACTIVITY 76Ge, 82Se(2β); calculated 2ν-accompanied Gamow-Teller 2β-decay matrix elements. Hartree-Fock-Bogoliubov model, variation after projection. NUCLEAR STRUCTURE 76Ge, 76,82Se, 82Kr; calculated yrast spectra. Hartree-Fock-Bogoliubov model, variation after projection.
doi: 10.1103/PhysRevC.50.R2660
1994SI15 Phys.Rev. C50, 2307 (1994) A.J.Singh, P.K.Raina, S.K.Dhiman Quadrupole-Quadrupole Plus Pairing Interaction Application to Transition Charge Density Calculations in Some Even-Even Palladium Nuclei NUCLEAR STRUCTURE 104,106,108,110Pd; calculated levels, intrinsic quadrupole moments, transition charge densities, B(λ). Microscopic variational model, quadrupole-quadrupole plus pairing interactions.
doi: 10.1103/PhysRevC.50.2307
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