NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = V.Kumar Found 105 matches. Showing 1 to 100. [Next]2024KU04 Phys.Rev. C 109, 014613 (2024) V.Kumar, K.Mahata, S.Dhuri, A.Shrivastava, K.Ramachandran, S.Pandit, V.V.Parkar, A.Chavan, A.Kumar, S.Kaur, P.C.Rout Observation of asymmetric fission in 204Pb at low excitation energies
doi: 10.1103/PhysRevC.109.014613
2023JA07 Universe 9, 362 (2023) P.Jain, Y.Kumar, V.Kumar, P.Bangotra Search for Super-Deformed Identical Bands in the A = 190 Mass Region on the Basis of Level Spin NUCLEAR STRUCTURE A=190; analyzed available data; deduced Super-Deformed (SD) bands using the modified Variable Moment of Inertia (VMI) model.
doi: 10.3390/universe9080362
2023KU05 Acta Phys.Pol. B54, 1-A1 (2023) V.Kumar, A.Shukla, M.K.Sharma, P.K.Rath Characteristics of Chiral Bandhead NUCLEAR STRUCTURE 80Br, 100Tc, 104Rh, 128Cs, 132La, 134Pr, 136,138Pm; analyzed available data; deduced the low value of reduced hindrance factors could be indicative of triaxial shape and orthogonally coupling of the valence nucleon angular momentum at the chiral bandhead.
doi: 10.5506/aphyspolb.54.1-a1
2023KU20 Acta Phys.Pol. B54, 9-A3 (2023) V.Kumar, A.Shukla, M.K.Sharma, P.K.Rath Comparison of Valence-correlation Schemes in Nuclei Having Valence Nucleons in the Same Shell NUCLEAR STRUCTURE A=6-136; analyzed available data; deduced variation of excitation energies of yrast 2+ states and ratios E4+/E2+ with NpNn.
doi: 10.5506/APhysPolB.54.9-A3
2023KU21 Phys.Rev. C 108, 044313 (2023) V.Kumar, R.Chapman, D.O'Donnell, J.Ollier, R.Orlandi, J.F.Smith, K.-M.Spohr, D.A.Torres, P.Wady, S.K.Tandel, S.J.Freeman, G.de Angelis, N.Marginean, D.R.Napoli, J.J.Valiente-Dobon, S.Aydin, E.Farnea, R.Marginean, D.Mengoni, T.Kroll, N.Thompson Evolution of nuclear structure in the neutron-rich 96, 97, 99Nb isotopes: Evidence for shape coexistence in N = 58 99Nb
doi: 10.1103/PhysRevC.108.044313
2023KU26 Eur.Phys.J. A 59, 237 (2023) Shell-model study of β+/EC-decay half-lives for Z = 21-30 nuclei RADIOACTIVITY 41,42,43Sc, 42,43Ti, 45Ti, 44,45,46,47V, 45,47Cr, 48,49,50,51Mn, 48,49,50,51Fe, 53Fe, 50Co, 52,53Co, 55Co, 57,58Co, 54Ni, 56,57Ni, 57,58,59,60,61,62,63,64Cu, 58,59,60,61,62,63Zn, 65Zn(EC), (β+); calculated excitation energies, log ft values, and branching ratios, phase space factors. Comparison with available data.
doi: 10.1140/epja/s10050-023-01142-0
2023SI05 Acta Phys.Pol. B54, 1-A4 (2023) Y.P.Singh, V.Kumar, A.Choudhary, A.Shukla, M.K.Sharma, P.K.Rath, Rohtash, P.Jain, Y.Kumar, R.Sapra, K.Jha, M.Silarski, S.Sharma Influence of Collectivity on Reduced Hindrance Factor of K-isomers in Tantalum and Hafnium Isotopes NUCLEAR STRUCTURE 170,172,174,176,178,180,182,184Hf, 173,175,177,179,181,183,185Ta; analyzed available data; deduced correlations of the reduced hindrance factor of the K-isomers in Ta and Hf isotopes with respect to NpNn.
doi: 10.5506/aphyspolb.54.1-a1
2023SI21 Phys.Part. and Nucl.Lett. 20, 577 (2023) Y.P.Singh, V.Kumar, A.Shukla, P.Jain, Y.Kumar, R.Sapra, K.Jha, T.Verma, M.Silarski, S.Sharma Systematic Study of Gamma Decay Hindrance Factors NUCLEAR STRUCTURE A=20-250; analyzed available data; deduced Weisskopf hindrance factor FW for electric and magnetic multipole transitions.
doi: 10.1134/S1547477123040635
2022DH03 Phys.Rev. C 106, 014616 (2022) S.Dhuri, K.Mahata, A.Shrivastava, K.Ramachandran, S.K.Pandit, V.Kumar, V.V.Parkar, P.C.Rout, A.Kumar, A.Chavan, S.Kaur, T.Santhosh Measurement of mass and total kinetic energy distributions for the 12C + 174Lu system NUCLEAR REACTIONS 175Lu(12C, F), E=58, 65, 70, 75 MeV; measured reaction products; deduced fission fragment mass and total kinetic energy (TKE) distributions. Comparison to the systematics based on liquid drop (LD) behavior. Two position-sensitive multiwire proportional chambers (MWPCs) at BARC-TIFR Pelletron-LINAC facility, Mumbai.
doi: 10.1103/PhysRevC.106.014616
2022KU01 Nucl.Phys. A1017, 122344 (2022) V.Kumar, A.Kumar, P.C.Srivastava Shell-model study for GT-strengths corresponding to β decay of 60Ge and 62Ge RADIOACTIVITY 60,62Ge(EC); calculated GT transitions, T1/2, energy levels, J, π using KB3G and GXPF1A, JUN45 and jj44b effective interactions. Comparison with available data.
doi: 10.1016/j.nuclphysa.2021.122344
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
2022KU23 Phys.Scr. 97, 055301 (2022) V.Kumar, S.B.Bhardwaj, R.Mehar Singh, F.Chand Energy eigenvalue spectra and applications of the sextic and the Coulomb perturbed potentials NUCLEAR STRUCTURE 96Zr, 112Sn; calculated closed-form solutions to the N-dimensional Schrodinger equation, for the Coulomb perturbed and the sextic potentials using the Nikiforov-Uvarov functional analysis and power series methods, respectively.
doi: 10.1088/1402-4896/ac5f28
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
2022MA17 Phys.Rev. C 105, 034328 (2022) K.Mandal, A.Chakraborty, A.K.Mondal, U.S.Ghosh, A.Dey, S.Biswas, B.Mukherjee, S.Rai, S.Chatterjee, S.K.Das, S.Samanta, R.Raut, S.S.Ghugre, S.Bhattacharyya, S.Nandi, S.Bhattacharya, G.Mukherjee, S.Ali, A.Goswami, S.Mukhopadhyay, Krishichayan, R.Banik, R.Chakrabarti, V.Kumar, A.Kumar Alignment effects in the medium-spin level structure of 78Se NUCLEAR REACTIONS 76Ge(α, 2n), E=30 MeV; measured Eγ, Iγ, γγ(θ), gγ∓coin. 78Se; deduced levels J, π, DCO, polarization asymmetry, multipolarity, rotational band structures, configurations, alignments, high-spin states; calculated total Routhian surface (TRS) contours in (β2, γ) plane. Pointed the evidences of triaxial shapes persistence in the higher spin regime. Systematics of crossing frequencies for Se isotopes. Indian National Gamma Array (INGA) together with one low-energy photon spectrometer (LEPS) at K-130 cyclotron of Variable Energy Cyclotron Centre, Kolkata (VECC).
doi: 10.1103/PhysRevC.105.034328
2022SI27 Acta Phys.Pol. B53, 10-A3 (2022) A.Singh, A.Shukla, V.Kumar, M.K.Gaidarov Study of Two-proton Emission Half-lives Using Relativistic Mean-field Model RADIOACTIVITY 45Fe, 48Ni, 54Zn, 65,67Kr, 58,59Ge, 63Se, 70Sr, 74,75Zr(2p); calculated T1/2 using the relativistic mean-field (RMF) approach with the force parameter NL3*. Comparison with available data.
doi: 10.5506/APhysPolB.53.10-A3
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
2021KU14 Nucl.Phys. A1013, 122226 (2021) V.Kumar, K.Saha, P.Shukla, A.Bhattacharyya Bottomonia production in p + p collisions under NRQCD formalism
doi: 10.1016/j.nuclphysa.2021.122226
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
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
2020KU12 Acta Phys.Pol. B51, 961 (2020) V.Kumar, P.C.Srivastava, A.Kumar Gamow-Teller Transition Strengths for Selected fp Shell Nuclei NUCLEAR STRUCTURE 44Sc, 45,48Ti, 66Co, 66Fe; calculated Gamow–Teller transition strengths. Comparison with experimental data.
doi: 10.5506/APhysPolB.51.961
2020KU20 Nucl.Phys. A1002, 121989 (2020) Shell model study of high-spin states and band terminations in 67As NUCLEAR STRUCTURE 67As; calculated energy levels, J, π; deduced high-spin states and band terminations.
doi: 10.1016/j.nuclphysa.2020.121989
2020MO41 Phys.Rev. C 102, 064311 (2020) A.K.Mondal, A.Chakraborty, K.Mandal, U.S.Ghosh, An.Dey, S.Biswas, B.Mukherjee, S.Rai, Krishichayan, S.Chatterjee, S.K.Das, S.Samanta, R.Raut, S.S.Ghugre, S.Rajbanshi, R.Banik, S.Bhattacharyya, S.Nandi, S.Bhattacharya, G.Mukherjee, S.Ali, A.Goswami, R.Chakrabarti, S.Mukhopadhyay, A.K.Sinha, V.Kumar, A.Kumar Investigation of different possible excitation modes in neutron-rich 78As NUCLEAR REACTIONS 76Ge(α, np)78As, E=30, 35, 40 MeV; measured Eγ, Iγ, γγ-coin, excitation functions, γγ(θ)(DCO), γγ(linear polarization) using INGA array of six Compton-suppressed HPGe Clover detectors and one LEPS detector at the K-130 cyclotron facility of VECC-Kolkata. 78As; deduced levels, J, π, multipolarities, dipole bands, B(E2), B(M1)/B(E2) ratios, configurations, possible stapler structure of the dipole bands; calculated total Routhian surfaces for the dipole bands. Comparison with large-scale shell-model calculations using JUN45 and jj44b interactions.
doi: 10.1103/PhysRevC.102.064311
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
2019KU04 Acta Phys.Pol. B50, 173 (2019) Identification of 38 keV γ Transition in 132La Amidst X Rays NUCLEAR REACTIONS 122Sn(14N, X), (15N, X)132La, E=4-6 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced low-energy γ-ray transition, J, π, bands.
doi: 10.5506/APhysPolB.50.173
2019SA23 Hyperfine Interactions 240, 37 (2019) A.Saxena, A.Kumar, V.Kumar, P.C.Srivastava, T.Suzuki Ab initio description of collectivity for sd shell nuclei NUCLEAR STRUCTURE 20Ne, 24,32Mg, 34Si; calculated energy levels, J, π, B(E2) values. Comparison with experimental data.
doi: 10.1007/s10751-019-1582-y
2019TO10 Eur.Phys.J. A 55, 158 (2019) D.A.Torres, R.Chapman, V.Kumar, B.Hadinia, A.Hodsdon, M.Labiche, X.Liang, D.O'Donnell, J.Ollier, R.Orlandi, J.F.Smith, K.-M.Spohr, P.Wady, Z.M.Wang, L.Corradi, E.Fioretto, A.Gadea, G.de Angelis, N.Marginean, D.R.Napoli, E.Sahin, A.M.Stefanini, J.J.Valiente-Dobon, F.D.Vedova, M.Axiotis, T.Martinez, S.Szilner, D.Bazzacco, S.Beghini, E.Farnea, R.Marginean, D.Mengoni, G.Montagnoli, F.Recchia, F.Scarlassara, C.A.Ur, S.M.Lenzi, S.Lunardi, T.Kroll, F.Haas, T.Faul, M.Hjorth-Jensen, B.G.Carlsson, S.J.Freeman, A.G.Smith, G.Jones, N.Thompson, G.Pollarolo, G.S.Simpson Study of medium-spin states of neutron-rich 87, 89, 91Rb isotopes NUCLEAR REACTIONS 124Sn(96Zr, f), (96Zr, x)87,89,91Rb, E=530 MeV; measured Eγ, Iγ of fission fragments γ-ray decay; 176Yb(36S, x), (36S, f)87,89,91Rb, E=230 MeV; measured thick target Eγ, Iγ of fission fragments γ-ray decay. 87,89,91Rb; deduced γ-ray energy spectrum, new scheme of levels, Jπ, (up to 6423 keV (27/2)+ state), γ-ray transitions; calculated multipolarities, energy differences between (5/2)- and (3/2)- states for odd-A Rb isotopes using spherical shell-model and cranked Nilsson-Strutinsky-Bogoliubov approach.
doi: 10.1140/epja/i2019-12839-6
2017KA03 Phys.Lett. B 765, 317 (2017); Erratum Phys.Lett. B 766, 362 (2017) J.Kaur, N.Bansal, A.K.Bhati, R.Kumar, Vijay R.Sharma, K.Kapoor, V.Kumar, N.Kaur g-factor and quadrupole moment of the 21-/2 isomeric state in 131La: Signature for a weakly-deformed magnetic rotational band head NUCLEAR REACTIONS 116Cd(19F, 4nγ)131La, E=75 MeV; measured reaction products, Eγ, Iγ; deduced g -factor and the static quadrupole moment of a magnetic rotational band head, T1/2. Comparison with theoretical calculations.
doi: 10.1016/j.physletb.2016.12.012
2017KU09 Acta Phys.Pol. B48, 819 (2017) Symmetries in Mirror Energy Differences
doi: 10.5506/aphyspolb.48.819
2017SA17 Nucl.Phys. A961, 169 (2017) K.Saraswat, P.Shukla, V.Kumar, V.Singh Energy loss of heavy quarks and B and D meson spectra in PbPb collisions at LHC energies
doi: 10.1016/j.nuclphysa.2017.02.013
2017SA26 Eur.Phys.J. A 53, 84 (2017) K.Saraswat, P.Shukla, V.Kumar, V.Singh Strange hadron production in pp, pPb and PbPb collisions at LHC energies
doi: 10.1140/epja/i2017-12276-7
2016CH14 Phys.Rev. C 93, 044318 (2016) R.Chapman, Z.M.Wang, M.Bouhelal, F.Haas, X.Liang, F.Azaiez, B.R.Behera, M.Burns, E.Caurier, L.Corradi, D.Curien, A.N.Deacon, Zs.Dombradi, E.Farnea, E.Fioretto, A.Gadea, A.Hodsdon, F.Ibrahim, A.Jungclaus, K.Keyes, V.Kumar, S.Lunardi, N.Marginean, G.Montagnoli, D.R.Napoli, F.Nowacki, J.Ollier, D.O'Donnell, A.Papenberg, G.Pollarolo, M.-D.Salsac, F.Scarlassara, G.Simpson, J.F.Smith, K.M.Spohr, M.Stanoiu, A.M.Stefanini, S.Szilner, M.Trotta, D.Verney Particle-core coupling in 37S NUCLEAR REACTIONS 208Pb(36S, 37S), E=215 MeV; measured yields of 34,35,36,37,38S by using PRISMA magnetic spectrometer, Eγ, Iγ, (particle)γ-coin using CLARA array for γ-ray detection at INFN-Legnaro facility. 37S; deduced levels, J, π, configurations, wave-function amplitudes. Comparison with previous experimental results, and with large-scale state-of-the-art shell-model calculations with the SDPF-U effective interaction using NATHAN code.
doi: 10.1103/PhysRevC.93.044318
2016CH33 Phys.Rev. C 94, 024325 (2016) R.Chapman, Z.M.Wang, M.Bouhelal, F.Haas, X.Liang, F.Azaiez, B.R.Behera, M.Burns, E.Caurier, L.Corradi, D.Curien, A.N.Deacon, Zs.Dombradi, E.Farnea, E.Fioretto, A.Gadea, A.Hodsdon, F.Ibrahim, A.Jungclaus, K.Keyes, V.Kumar, S.Lunardi, N.Marginean, G.Montagnoli, D.R.Napoli, F.Nowacki, J.Ollier, D.O'Donnell, A.Papenberg, G.Pollarolo, M.-D.Salsac, F.Scarlassara, J.F.Smith, K.M.Spohr, M.Stanoiu, A.M.Stefanini, S.Szilner, M.Trotta, D.Verney First in-beam γ-ray study of the level structure of neutron-rich 39S NUCLEAR REACTIONS 208Pb(36S, 39S), E=215 MeV; measured Eγ, Iγ, particle spectra, (39S ions)γ coin, mass spectrum of sulfur isotopes in coincidence with γ rays using the magnetic spectrometer PRISMA for particles and CLARA array for γ rays at INFN-Legnaro accelerator facility. 39S; deduced levels, J, π, configurations. Comparison with shell model calculations using SDPF-U effective interaction, and with level structure in N=23 isotones 37Si and 41Ar. Systematics of first 7/2- and 11/2- states in 31,33,35,37,39,41S, 35,37,39,41,43,45Ar.
doi: 10.1103/PhysRevC.94.024325
2016KU14 Eur.Phys.J. A 52, 181 (2016) Shell model description of Gamow-Teller strengths in pf-shell nuclei RADIOACTIVITY 42Ti, 46Cr, 50Fe, 54Ni(β+); calculated β-decay Gamow-Teller matrix elements, B(GT) transition strength distributions using shell model restricted to the pf valence space with several effective interactions. Compared with other calculations and data.
doi: 10.1140/epja/i2016-16181-3
2016KU17 Nucl.Phys. A955, 1 (2016) N.Kumar, S.Kumar, V.Kumar, S.K.Mandal, R.Palit, S.Saha, J.Sethi, T.Trivedi, S.C.Pancholi, P.C.Srivastava Polarization measurements and high-spin states in 8638Sr48 NUCLEAR REACTIONS 76Ge(13C, 3n), E=45 MeV; measured Eγ, Iγ(θ), γγ-coin using INGA array of 15 Compton-suppressed clover HPGe. 86Sr deduced γ transitions, transition multipolarity, levels, J, π, rotational bands up to high spins, IPDCO (Integrated Polarization Direction Correlation Method) linear polarization using Compton-scattereed photons; calculated wavefunctions of different states in Band 3, levels, J, π using shell model and TAC (Tilted-Axis Cranking) with different interactions.
doi: 10.1016/j.nuclphysa.2016.05.018
2016KU21 J.Phys.(London) G43, 105104 (2016) Nuclear β--decay half-lives for fp and fpg shell nuclei RADIOACTIVITY 52,53,54,55,56,57,58Ca, 54,55,56,57,58,59,60,61Sc, 56,57,58,59,60,61,62Ti, 56,57,58,59,60,61,62,63V, 59,60,61,62,63,64Cr, 60,61,62,63,64,65Mn, 65,66Fe, 64,65,66,67Co, 67,68,69,70,71,72,73,74,75,76,77,78Ni, 68,69,70,71,72,73,74,75,76,77,78,79Cu, 73,74,75,76,77,78,79,80Zn(β-); calculated T1/2. Comparison with experimental data.
doi: 10.1088/0954-3899/43/10/105104
2016SA12 Phys.Rev. C 93, 035504 (2016) K.Saraswat, P.Shukla, V.Kumar, V.Singh Coherent pion production in neutrino-nucleus scattering NUCLEAR REACTIONS C(π, π);E at 0.1-10 GeV/c; calculated total σ as function of pion momentum using Glauber model. C(ν, π), E<20 GeV; calculated total and differential cross sections for incident muon neutrinos using Adler's partially conserved axial current (PCAC) model. Comparison with Berger-Sehgal theoretical approach, and with available experimental data.
doi: 10.1103/PhysRevC.93.035504
2016SR03 Acta Phys.Pol. B47, 2151 (2016) P.C.Srivastava, V.Kumar, M.J.Ermamatov High-spin Structure of 87Sr and 87Zr Nuclei: Shell-model Interpretation NUCLEAR STRUCTURE 87Sr, 87Zr; calculated energy levels, J, π, B(E2) values. Nuclear shell model, JUN45 and jj44b effective interactions.
doi: 10.5506/APhysPolB.47.2151
2016SR05 Phys.Rev. C 94, 064306 (2016) Spectroscopic factor strengths using ab initio approaches NUCLEAR REACTIONS 27Al(d, 3He)26Mg, E=25 MeV; 27Al(d, t)26Al, E not given; calculated spectroscopic factors C2S for levels with L=0 and L=2, wave functions and amplitudes of different configurations. Shell-model calculations using in-medium similarity renormalization, the ab initio coupled cluster effective interaction (CCEI), and phenomenological USDB interaction. Comparison with experimental data. NUCLEAR STRUCTURE 26Mg, 26Al; calculated levels, J, π. Shell-model calculations using in-medium similarity renormalization group (IM-SRG), ab initio coupled cluster effective interaction (CCEI), and phenomenological USDB interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.94.064306
2015CH56 Phys.Rev. C 92, 044308 (2015) R.Chapman, A.Hodsdon, M.Bouhelal, F.Haas, X.Liang, F.Azaiez, Z.M.Wang, B.R.Behera, M.Burns, E.Caurier, L.Corradi, D.Curien, A.N.Deacon, Zs.Dombradi, E.Farnea, E.Fioretto, A.Gadea, F.Ibrahim, A.Jungclaus, K.Keyes, V.Kumar, S.Lunardi, N.Marginean, G.Montagnoli, D.R.Napoli, F.Nowacki, J.Ollier, D.O'Donnell, A.Papenberg, G.Pollarolo, M.-D.Salsac, F.Scarlassara, J.F.Smith, K.M.Spohr, M.Stanoiu, A.M.Stefanini, S.Szilner, M.Trotta, D.Verney Spectroscopy of neutron-rich 34, 35, 36, 37, 38P populated in binary grazing reactions NUCLEAR REACTIONS 208Pb(36S, X)32P/33P/34P/35P/36P/37P/38P, E=215 MeV; measured mass spectrum, Eγ, Iγ, (reaction products)γ-, γγ-coin using PRISMA-CLARA apparatus at INFN-LNL-Legnaro accelerator facility. 34,35,36,37,38P; deduced levels, J, π, configurations. Comparison with previous experimental studies, and with shell-model calculations.
doi: 10.1103/PhysRevC.92.044308
2015GA19 Phys.Rev. C 91, 064313 (2015) L.P.Gaffney, A.P.Robinson, D.G.Jenkins, A.N.Andreyev, M.Bender, A.Blazhev, N.Bree, B.Bruyneel, P.A.Butler, T.E.Cocolios, T.Davinson, A.N.Deacon, H.De Witte, D.DiJulio, J.Diriken, A.Ekstrom, Ch.Fransen, S.J.Freeman, K.Geibel, T.Grahn, B.Hadinia, M.Hass, P.-H.Heenen, H.Hess, M.Huyse, U.Jakobsson, N.Kesteloot, J.Konki, Th.Kroll, V.Kumar, O.Ivanov, S.Martin-Haugh, D.Mucher, R.Orlandi, J.Pakarinen, A.Petts, P.Peura, P.Rahkila, P.Reiter, M.Scheck, M.Seidlitz, K.Singh, J.F.Smith, J.Van de Walle, P.Van Duppen, D.Voulot, R.Wadsworth, N.Warr, F.Wenander, K.Wimmer, K.Wrzosek-Lipska, M.Zielinska Collectivity in the light radon nuclei measured directly via Coulomb excitation NUCLEAR REACTIONS 109Ag, 120Sn(202Rn, 202Rn'), (204Rn, 204Rn'), E=2.845, 2.90, 2.28 MeV, [secondary 202,204Rn beams from U(p, X), E=1.4 GeV from Proton Synchrotron Booster, REX-TRAP, REX-EBIS and REX-LINAC at ISOLDE-CERN facility]; measured scattered heavy ion spectra, Eγ, Iγ, (particle)γ-coin using Miniball array. Coulomb excitation. 202,204Rn; deduced levels, E2 matrix elements, spectroscopic quadrupole moment, B(E2). GOSIA analysis of experimental data for 202,204Rn and 109Ag, 120Sn from Coulomb excitation. Comparison with state-of-the-art beyond-mean-field model calculations. Systematics of energies and transition quadrupole moments of yrast states, B(E2) and quadrupole deformation for first 2+ states in 198,200,202,204,206,208,210,212Rn.
doi: 10.1103/PhysRevC.91.064313
2015KU12 Mod.Phys.Lett. A 30, 1550093 (2015) V.Kumar, P.C.Srivastava, I.O.Morales High-spin structures of 77, 79, 81, 83As isotopes NUCLEAR STRUCTURE 77,79,81,83As; calculated energy levels, J, π, high-spin states. Shell model, JUN45 and jj44b effective interactions.
doi: 10.1142/s0217732315500935
2015KU21 Phys.Rev. C 92, 024908 (2015) Quarkonia suppression in PbPb collisions at √ sNN = 2.76 TeV
doi: 10.1103/PhysRevC.92.024908
2015KU22 Nucl.Phys. A942, 1 (2015) V.Kumar, P.C.Srivastava, M.J.Ermamatov, I.O.Morales Analysis of proton and neutron pair breakings: High-spin structures of 124-127Te isotopes NUCLEAR STRUCTURE 124,125,126,127Te; calculated levels, J, π, separately positive and negative parity states, high spin, rotational bands, B(E2), B(E3), B(M2), B(M4) using state-of-the-art shell model. Compared with recent data.
doi: 10.1016/j.nuclphysa.2015.07.012
2015KU32 Phys.Atomic Nuclei 78, 1001 (2015) A test for correction made to spin systematics for coupled band in doubly-odd nuclei NUCLEAR STRUCTURE 112,114,116Cs, 126,138Pr; analyzed available data; deduced systematics of excitation energies, J, π.
doi: 10.1134/S1063778815080074
2014SA49 Phys.Rev. C 90, 024316 (2014) M.Saxena, R.Kumar, A.Jhingan, S.Mandal, A.Stolarz, A.Banerjee, R.K.Bhowmik, S.Dutt, J.Kaur, V.Kumar, M.Modou Mbaye, V.R.Sharma, H.-J.Wollersheim Rotational behavior of 120, 122, 124Te NUCLEAR REACTIONS 120,122,124Te(58Ni, 58Ni'), E=175 MeV; measured Doppler-shifted γ-spectra, Eγ, Iγ, (particle)γ-coin. Coulomb excitation. 120,122,124Te; deduced levels, B(E2) for first 2+ states, B(E2) ratios. Comparison with large scale shell model calculations, and with predictions of IBA-2, asymmetric rotor, and vibrator models. Systematics of B(E2) values of first 2+ states in even-even Te and Cd nuclei with N=54-80.
doi: 10.1103/PhysRevC.90.024316
2014SR03 Phys.Atomic Nuclei 77, 1334 (2014) P.C.Srivastava, V.Kumar, M.J.Ermamatov High-spin structures of 86, 87, 88, 89Y isotopes NUCLEAR STRUCTURE 86,87,88,89Y; calculated energy levels, J, π. Shell model calculations, comparison with experimental data.
doi: 10.1134/S1063778814100111
2013KA27 Phys.Rev. C 87, 064312 (2013) J.Kaur, A.K.Bhati, N.Bansal, V.Kumar, V.R.Sharma, H.Kumar, R.Kumar, R.K.Bhowmik g factors of 9/2- and 23/2+ isomeric states in 129Ba NUCLEAR REACTIONS 120Sn(12C, 3n)129Ba, E=52 MeV; 124Sn(12C, 4n)132Ba, E=52 MeV; measured γ(t), isomer half-lives, spin rotation spectra at IUAC facility in Delhi; deduced Larmor precession frequency, magnetic hyperfine field, g factors, Nilsson configurations. TDPAD method. Systematics of g factors of isomers in 123,127,129,131,133Ba, 125Te, 127Xe, 131Ce. NUCLEAR MOMENTS 129Ba; measured g factors of 9/2- and 23/2+ isomeric states with respect to g factor of 10+ isomer in 132Ba using TDPAD technique. Comparison with previous data. Assigned Nilsson configurations.
doi: 10.1103/PhysRevC.87.064312
2013KU23 Int.J.Mod.Phys. E22, 1350091 (2013) Structure of odd 79, 81, 83Se isotopes with proton and neutron excitations across Z=28 and N=40 NUCLEAR STRUCTURE 79,81,83Se; calculated energy levels, J, π, occupation number, B(E2), magnetic dipole moments. Comparison with available data.
doi: 10.1142/S0218301315500912
2013SZ02 Phys.Rev. C 87, 054322 (2013) S.Szilner, L.Corradi, F.Haas, G.Pollarolo, L.Angus, S.Beghini, M.Bouhelal, R.Chapman, E.Caurier, S.Courtin, E.Farnea, E.Fioretto, A.Gadea, A.Goasduff, D.Jelavic-Malenica, V.Kumar, S.Lunardi, N.Marginean, D.Mengoni, T.Mijatovic, G.Montagnoli, F.Recchia, E.Sahin, M.-D.Salsac, F.Scarlassara, J.F.Smith, N.Soic, A.M.Stefanini, C.A.Ur, J.J.Valiente-Dobon Structure of chlorine isotopes populated by heavy ion transfer reactions NUCLEAR REACTIONS 208Pb(40Ar, pxn), E=255 MeV; measured mass distribution of chlorine fragments populated through pxn transfer channels, Eγ, Iγ, time-of-flight, energy loss, γγ-, (fragment)γ-coin using the Clara array and magnetic spectrometer Prisma at ALPI-Linac accelerator facility in Legnaro. 37,38,39,40,41,42,43Cl; deduced levels, J, π, configurations. Comparison with shell-model calculations, and previous experimental studies. NUCLEAR STRUCTURE 37,38,39,40,41,42Cl; calculated levels, J, π, proton and neutron occupation probabilities, energy splittings between 1/2+ and 3/2+ states. Large-scale shell model calculations with PSDPF interaction.
doi: 10.1103/PhysRevC.87.054322
2012CA28 Phys.Rev. C 86, 032801 (2012) M.Carmona-Gallardo, B.S.Nara Singh, M.J.G.Borge, J.A.Briz, M.Cubero, B.R.Fulton, H.Fynbo, N.Gordillo, M.Hass, G.Haquin, A.Maira, E.Nacher, Y.Nir-El, V.Kumar, J.McGrath, A.Munoz Martin, A.Perea, V.Pesudo, G.Ribeiro, J.Sanchez del Rio, O.Tengblad, R.Yaniv, Z.Yungreis New measurement of the 3He(α, γ)7Be cross section at medium energies NUCLEAR REACTIONS 4He(3He, γ)7Be, E=2507, 4010, 5312 keV; measured 7Be recoils, Eγ, Iγ, (recoil)γ-correlated events, σ, astrophysical S34(E) factor using activation method. Relevance to solar neutrino flux and the primordial 7Li abundance. Comparison with several previous measurements including ERNA data, and some theoretical calculations.
doi: 10.1103/PhysRevC.86.032801
2012CA32 J.Phys.:Conf.Ser. 337, 012061 (2012) M.Carmona-Gallardo, B.S.Nara Singh, O.Tengblad, M.Hass, M.Alcorta, M.J.G.Borge, J.A.Briz, C.Cruz, M.Cubero, R.Dominguez-Reyes, B.R.Fulton, H.Fynbo, N.Gordillo, G.Haquin, Y.Nir-El, V.Kumar, A.Maira, J.McGrath, A.Munoz Martin, A.Perea, Z.Yungreis Astrophysical S factor for the 4He(3He, γ)7Be reaction at medium energies NUCLEAR REACTIONS 4He(3He, γ), E=2.3-5.3 MeV; measured prompt Eγ, Iγ, β-delayed Eγ, Iγ from from 7Be EC decay, counting of 7Be ions; deduced S-factor.
doi: 10.1088/1742-6596/337/1/012061
2012FI02 Phys.Rev. C 85, 034334 (2012) E.Fiori, G.Georgiev, A.E.Stuchbery, A.Jungclaus, D.L.Balabanski, A.Blazhev, S.Cabaret, E.Clement, M.Danchev, J.M.Daugas, S.Grevy, M.Hass, V.Kumar, J.Leske, R.Lozeva, S.Lukyanov, T.J.Mertzimekis, V.Modamio, B.Mouginot, F.Nowacki, Yu.E.Penionzhkevich, L.Perrot, N.Pietralla, K.Sieja, K.-H.Speidel, I.Stefan, C.Stodel, J.C.Thomas, J.Walker, K.O.Zell First g(2+) measurement on neutron-rich 72Zn, and the high-velocity transient field technique for radioactive heavy-ion beams NUCLEAR REACTIONS 208Pb, Gd(76Ge, X), E=37.8 MeV/nucleon; Gd(72Zn, X), [secondary 72Zn beam from Al(76Ge, X), E=59 MeV/nucleon], E=36.5 MeV/nucleon; measured Eγ, Iγ, γγ-coin, angular correlations, precession angles. 72Zn, 76Ge; deduced levels, J, π, g factors. Systematics and large-scale shell-model calculations of level energies, B(E2), and g factors of first 2+ states in A=64-80 even-even Zn isotopes. Evidence for predicted transition in the structure of the Zn isotopes near N=40. NUCLEAR MOMENTS 76Ge, 72Zn; measured g factors of first 2+ states with high-velocity transient-field (HVTF) technique. Systematics and large-scale shell-model calculations of g factors of first 2+ states in A=64-80 even-even Zn isotopes.
doi: 10.1103/PhysRevC.85.034334
2012KU32 Phys.Rev. C 86, 054907 (2012) Components of the dilepton continuum in Pb+Pb collisions at √ sNN =2.76 TeV
doi: 10.1103/PhysRevC.86.054907
2012NE03 Phys.Rev. C 85, 057301 (2012) D.Negi, T.Trivedi, A.Dhal, S.Kumar, V.Kumar, S.Roy, M.K.Raju, S.Appannababu, G.Mohanto, J.Kaur, R.K.Sinha, D.Choudhury, D.Singh, R.Kumar, R.P.Singh, S.Muralithar, A.K.Bhati, S.C.Pancholi, R.K.Bhowmik Shears mechanism in 109In NUCLEAR REACTIONS 96Zr(19F, 6n), E=105 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios. 106In; deduced high-spin levels, J, π, bands, configurations. Comparison with tilted-axis cranking model calculations. Systematics of alignment plots for 3-qp band structures in 105,107,109In.
doi: 10.1103/PhysRevC.85.057301
2012ST07 Europhys.Lett. 98, 32001 (2012) T.Stora, E.Noah, R.Hodak, T.Y.Hirsh, M.Hass, V.Kumar, K.Singh, S.Vaintraub, P.Delahaye, H.Franberg-Delahaye, M.-G.Saint-Laurent, G.Lhersonneau A high intensity 6He beam for the β-beam neutrino oscillation facility NUCLEAR REACTIONS 9Be(n, α), E=0.1-1400 MeV; measured reaction products. 6He; deduced yields. Anti-neutrino source for β-beam at CERN.
doi: 10.1209/0295-5075/98/32001
2011AD18 Eur.Phys.J. A 47, 85 (2011) J.Adam, C.Bhatia, K.Katovsky, V.Kumar, M.Majerle, V.S.Pronskikh, A.M.Khilmanovich, B.A.Martsynkevich, I.V.Zhuk, V.M.Golovatiouk, W.Westmeier, A.A.Solnyshkin, V.M.Tsoupko-Sitnikov, A.S.Potapenko A study of reaction rates of (n, f), (n, γ) and (n, 2n) reactions in natU and 232Th by the neutron fluence produced in the graphite set-up (GAMMA-3) irradiated by 2.33 GeV deuteron beam NUCLEAR REACTIONS 232Th, U(n, f), (n, γ), (n, 2n), E=1.E-10-1.E3 MeV; measured reaction products, Eγ, Iγ. 85mKr, 93Y, 97Zr, 99Mo, 103Ru, 105Rh, 132Te, 131,133I, 133,135Xe, 140Ba, 141,143Ce, 231Th, 233Pa, 237U, 239Np deduced reaction rates, T1/2. 232Th, U(n, 2n), E=10-2000 MeV; calculated σ using TALYS. 232Th(n, f), E=400 keV, 14, 25, 50, 100, 200 MeV; measured fission products, deduced mass distribution; calculated mass distribution at two lowest energies using TALYS. Neutron flux calculated using MCNPX with LA150 cross section library.
doi: 10.1140/epja/i2011-11085-4
2011KU12 Int.J.Mod.Phys. E20, 1455 (2011) V.Kumar, Suresh Kumar, Sushil Kumar, Z.Hasan, B.S.Koranga, D.Kumar, D.Negi, L.Angus A semi-classical approach to signature splitting and signature inversion in odd-odd nuclei NUCLEAR STRUCTURE 74,76Br, 76,78,80,82,84Rb, 80,82,84Y, 120,122,124,126,128,130Cs, 124,126,128,130,132La, 126,128,130,132,134Pr, 134Pm, 100Tc, 100,102,104,106Rh, 104,106Ag, 152Eu, 154,156Tb, 156,158,160Ho, 158,160,162,164Tm, 162,164Lu; calculated energy staggering, Coriolis and n-p interactions, γ-triaxial deformation for high-j rotational bands. Axially symmetric rotor plus two-particle models.
doi: 10.1142/S0218301311018447
2011SZ02 Phys.Rev. C 84, 014325 (2011) S.Szilner, L.Corradi, F.Haas, D.Lebhertz, G.Pollarolo, C.A.Ur, L.Angus, S.Beghini, M.Bouhelal, R.Chapman, E.Caurier, S.Courtin, E.Farnea, E.Fioretto, A.Gadea, A.Goasduff, D.Jelavic-Malenica, V.Kumar, S.Lunardi, N.Marginean, P.Mason, D.Mengoni, G.Montagnoli, F.Nowacki, F.Recchia, E.Sahin, M.-D.Salsac, F.Scarlassara, R.Silvestri, J.F.Smith, N.Soic, A.M.Stefanini, J.J.Valiente-Dobon Interplay between single-particle and collective excitations in argon isotopes populated by transfer reactions NUCLEAR REACTIONS 208Pb(40Ar, X), E=255 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin using Prisa-Clara system. 40,41,42,43Ar; deduced levels, J, π. Comparison with shell model calculations, and with energy level systematics of N=20-28 argon nuclei.
doi: 10.1103/PhysRevC.84.014325
2011WA13 Phys.Rev. C 83, 061304 (2011) Z.M.Wang, R.Chapman, F.Haas, X.Liang, F.Azaiez, B.R.Behera, M.Burns, L.Corradi, D.Curien, A.N.Deacon, Zs.Dombradi, E.Farnea, E.Fioretto, A.Gadea, A.Hodsdon, F.Ibrahim, A.Jungclaus, K.Keyes, V.Kumar, A.Latina, N.Marginean, G.Montagnoli, D.R.Napoli, J.Ollier, D.O'Donnell, A.Papenberg, G.Pollarolo, M.-D.Salsac, F.Scarlassara, J.F.Smith, K.M.Spohr, M.Stanoiu, A.M.Stefanini, S.Szilner, M.Trotta, D.Verney Collectivity in 41S NUCLEAR REACTIONS 208Pb(36S, X), E=215 MeV; measured Eγ, Iγ, (particle)γ-coin using PRISMA spectrometer and CLARA array. 41S; deduced levels, J, π, multipolarity, configurations. Comparison with previous Coulomb excitation study and large-scale shell-model calculations using SDPF-U effective interaction.
doi: 10.1103/PhysRevC.83.061304
2010AD13 Eur.Phys.J. A 43, 159 (2010) J.Adam, K.Katovsky, M.Majerle, M.I.Krivopustov, V.Kumar, C.Bhatia, M.Sharma, A.A.Solnyshkin, V.M.Tsoupko-Sitnikov A study of nuclear transmutation of Th and natU with neutrons produced in a Pb target and U blanket irradiated by 1.6 GeV deuterons NUCLEAR REACTIONS 232Th(n, γ), (n, 2n), (n, F)99Mo, 235,238U(n, γ), (n, F)99Mo/132Te/133I/135I/135Xe/140Ba/143Ce, E=thermal-1000 MeV [from 208Pb(d, X), E=1.6 GeV spallation source]; measured Eγ, Iγ using HPGe detectors; deduced σ, reaction and transmutation rates. Comparison with simulations and TARC experimental data.
doi: 10.1140/epja/i2010-10909-y
2010BH02 Phys.Rev. C 81, 024614 (2010) Determination of neutron multiplication coefficients for fuel elements irradiated by spallation neutrons NUCLEAR REACTIONS 232Th, 233,235,238U(n, X), E=spallation neutrons; analyzed σ, neutron multiplication coefficient keff in capture, fission, and non-elastic channels for irradiation of fuel elements by spallation neutrons of energies up to 250 MeV, neutron removal and production rates. Discussed neutron poisoning of thermal and fast neutrons.
doi: 10.1103/PhysRevC.81.024614
2010DE11 Phys.Rev. C 81, 034308 (2010), Publishers Note Phys.Rev. C 81, 059903 (2010) M.De Rydt, J.M.Daugas, F.de Oliveira Santos, L.Gaudefroy, S.Grevy, D.Kameda, V.Kumar, R.Lozeva, T.J.Mertzimekis, P.Morel, T.Nagatomo, G.Neyens, L.Perrot, O.Sorlin, C.Stodel, J.C.Thomas, N.Vermeulen, P.Vingerhoets g factor of the 44Cl ground state: Probing the reduced Z=16 and N=28 gaps NUCLEAR REACTIONS 9Be(48Ca, X)44Cl, E=60 MeV/nucleon; measured β-NMR resonance Larmor frequency; deduced g factor, levels, J, π, configurations. NUCLEAR MOMENTS 44Cl; measured g factor by Larmor frequency using β-NMR method. Comparison with systematics of 39,41,43,45Cl, 46K and with shell-model calculations. NUCLEAR STRUCTURE 39,41,43,44,45Cl, 46K; calculated levels, J, π, g factors and configurations using large-scale shell-model approach with the SDPF-U residual interaction.
doi: 10.1103/PhysRevC.81.034308
2010HE17 Nucl.Phys. A834, 670c (2010) J.J.He, P.J.Woods, T.Davinson, M.Aliotta, J.Buescler, E.Clement, P.Delahaye, M.Hass, D.G.Jenkins, V.Kumar, A.St.J.Murphy, P.Neyskens, R.Raabe, A.P.Robinson, J.van der Walle, N.Warr, F.Wenander Measurement of the inelastic branch of the stellar 14O(α, p)17F reaction occurring in the explosive burning in Novae and X-ray bursters NUCLEAR REACTIONS 1H(17F, p), E=44.2 MeV; measured thick target Ep, Ip(θ), Eγ, Iγ, pγ-coin. 18Ne deduced resonance parameters using R-matrix fit.
doi: 10.1016/j.nuclphysa.2010.01.120
2010KU10 Phys.Rev. C 81, 054601 (2010) H.Kumawat, V.Jha, V.V.Parkar, B.J.Roy, S.Santra, V.Kumar, D.Dutta, P.Shukla, L.M.Pant, A.K.Mohanty, R.K.Choudhury, S.Kailas Inclusive α-production cross section for the 6Li + 90Zr system at energies near the fusion barrier NUCLEAR REACTIONS 90Zr(6Li, X), E=15, 17, 19, 21, 25, 30 MeV; measured α-spectra, σ and σ(θ). Comparison with DWBA and statistical model calculations.
doi: 10.1103/PhysRevC.81.054601
2010KU15 Phys.Rev. C 81, 067304 (2010) S.Kumar, A.K.Jain, A.Goel, S.S.Malik, R.Palit, H.C.Jain, I.Mazumdar, P.K.Joshi, Z.Naik, A.Dhal, T.Trivedi, I.Mehrotra, S.Appannababu, L.Chaturvedi, V.Kumar, R.Kumar, D.Negi, R.P.Singh, S.Muralithar, R.K.Bhowmik, S.C.Pancholi Band structure and shape coexistence in 13556Ba79 NUCLEAR REACTIONS 130Te(9Be, 4n), E=42.5 MeV; measured Eγ, Iγ, γγ-coin, DCO, γ(lin pol). 135Ba; deduced levels, J, π, multipolarity, bands, configurations, possible magnetic rotational band. Comparison with TAC calculations.
doi: 10.1103/PhysRevC.81.067304
2010KU23 Phys.Rev. C 82, 054302 (2010) V.Kumar, P.Das, S.Lakshmi, P.K.Joshi, H.C.Jain, R.P.Singh, R.Kumar, S.Muralithar, R.K.Bhowmik Decoupling behavior in 132La NUCLEAR REACTIONS 122Sn(14N, xn), (15N, xn), E=62 MeV; measured Eγ, Iγ, γγ-coin, half-lives by Doppler-shift recoil distance method (RDM). 132La; deduced levels, J, π. Comparison with particle-rotor coupling model calculations and with structure of 131La and 130Ba. Pseudospin coupling model and decoupled structures.
doi: 10.1103/PhysRevC.82.054302
2010NE05 Phys.Rev. C 81, 054322 (2010) D.Negi, T.Trivedi, A.Dhal, S.Kumar, V.Kumar, S.Roy, M.K.Raju, S.Appannababu, G.Mohanto, J.Kaur, R.K.Sinha, R.Kumar, R.P.Singh, S.Muralithar, A.K.Bhati, S.C.Pancholi, R.K.Bhowmik High spin spectroscopy and shears mechanism in 107In NUCLEAR REACTIONS 94Mo(16O, 2np)107In, E=70 MeV; measured Eγ, Iγ, γγ-coin, DCO, linear polarization, half-lives by DSAM using INGA array. 107In; deduced levels, J, π, multipolarity, bands, B(M1), B(E2), B(M1)/B(E2), Q(t), β2, configurations, shears band. Comparison with systematics of bands in 105,108In and with TAC calculations.
doi: 10.1103/PhysRevC.81.054322
2010SU12 Phys.Rev. C 81, 067304 (2010), see 2010KU15 Suresh Kumar, A.K.Jain, A.Goel, S.S.Malik, R.Palit, H.C.Jain, I.Mazumdar, P.K.Joshi, Z.Naik, A.Dhal, T.Trivedi, I.Mehrotra, S.Appannababu, L.Chaturvedi, V.Kumar, R.Kumar, D.Negi, R.P.Singh, S.Muralithar, R.K.Bhowmik, S.C.Pancholi Band structure and shape coexistence in 13556Ba79
doi: 10.1103/PhysRevC.81.067304
2010WA12 Phys.Rev. C 81, 054305 (2010) Z.M.Wang, R.Chapman, X.Liang, F.Haas, F.Azaiez, B.R.Behera, M.Burns, E.Caurier, L.Corradi, D.Curien, A.N.Deacon, Zs.Dombradi, E.Farnea, E.Fioretto, A.Gadea, A.Hodsdon, F.Ibrahim, A.Jungclaus, K.Keyes, V.Kumar, A.Latina, S.Lunardi, N.Marginean, G.Montagnoli, D.R.Napoli, F.Nowacki, J.Ollier, D.O'Donnell, A.Papenberg, G.Pollarolo, M.-D.Salsac, F.Scarlassara, J.F.Smith, K.M.Spohr, M.Stanoiu, A.M.Stefanini, S.Szilner, M.Trotta, D.Verney γ-ray spectroscopy of neutron-rich 40S NUCLEAR REACTIONS 208Pb(36S, X), E=215 MeV; measured Eγ, Iγ, (particle)γ-, γγ-coin using PRISMA spectrometer and CLARA array. 40S; deduced levels, J, π, B(E2), configurations. Comparison with previous work and large-scale sd-pf shell model calculations. Systematics of energies of first 2+ and 4+ states and B(E2) for 38,40,42,44S nuclei. 38S; measured Eγ, Iγ. NUCLEAR REACTIONS 208Pb(36S, X)34S/35S/36S/37S/38S/39S/40S/41S, E=215 MeV; measured yields.
doi: 10.1103/PhysRevC.81.054305
2010WA20 Phys.Rev. C 81, 064301 (2010) Z.M.Wang, R.Chapman, X.Liang, F.Haas, M.Bouhelal, F.Azaiez, B.R.Behera, M.Burns, E.Caurier, L.Corradi, D.Curien, A.N.Deacon, Zs.Dombradi, E.Farnea, E.Fioretto, A.Gadea, A.Hodsdon, F.Ibrahim, A.Jungclaus, K.Keyes, V.Kumar, A.Latina, N.Marginean, G.Montagnoli, D.R.Napoli, F.Nowacki, J.Ollier, D.O'Donnell, A.Papenberg, G.Pollarolo, M.-D.Salsac, F.Scarlassara, J.F.Smith, K.M.Spohr, M.Stanoiu, A.M.Stefanini, S.Szilner, M.Trotta, D.Verney Intruder negative-parity states of neutron-rich 33Si NUCLEAR REACTIONS 208Pb(36S, X)30Si/31Si/32Si/33Si/34Si/35Si/36Si, E=215 MeV; measured mass spectrum of Si fragments, Eγ, Iγ, (fragment)γ-, γγ-coin with CLARA array and PRISMA spectrometer. 33Si; deduced levels, J, π, multipolarity, shell-model configurations. Comparison with large-scale shell model calculations using PSDPFB effective interaction.
doi: 10.1103/PhysRevC.81.064301
2009GA05 Phys.Rev.Lett. 102, 092501 (2009) L.Gaudefroy, J.M.Daugas, M.Hass, S.Grevy, Ch.Stodel, J.C.Thomas, L.Perrot, M.Girod, B.Rosse, J.C.Angelique, D.L.Balabanski, E.Fiori, C.Force, G.Georgiev, D.Kameda, V.Kumar, R.L.Lozeva, I.Matea, V.Meot, P.Morel, B.S.Nara Singh, F.Nowacki, G.Simpson Shell Erosion and Shape Coexistence in 4316S27 RADIOACTIVITY 43S(IT); measured Eγ, Iγ(θ), g-factor using the time dependent perturbed angular distribution method; deduced B(E2), B(M1).
doi: 10.1103/PhysRevLett.102.092501
2009HE16 Phys.Rev. C 80, 042801 (2009) J.J.He, P.J.Woods, T.Davinson, M.Aliotta, J.Buscher, E.Clement, P.Delahaye, M.Hass, D.G.Jenkins, V.Kumar, A.St.J.Murphy, P.Neyskens, R.Raabe, A.P.Robinson, D.Voulot, J.van der Walle, N.Warr, F.Wenander Measurement of the inelastic branch of the 14O(α, p)17F reaction: Implications for explosive burning in novae and x-ray bursters NUCLEAR REACTIONS 1H(17F, p'), E=44.2 MeV; measured proton spectra, gamma spectra at the REX-ISOLDE facility. 14O(α, p)17F; deduced resonant contribution to the reaction rates of astrophysical significance for hot CNO cycle.
doi: 10.1103/PhysRevC.80.042801
2009KU17 Eur.Phys.J. A 40, 231 (2009) V.Kumar, C.Bhatia, H.Kumawat, J.Adam Validation of CASCADE code using the monitor reactions NUCLEAR REACTIONS 27Al(n, X), (p, X), E=10-25000 MeV; 27Al(d, X), E=10-25000 MeV/nucleon; calculated non-elastic σ. 27Al(n, X)22Na/24Na, E=1-25000 MeV; 27Al(p, X)22Na/24Na, E=10-25000 MeV; 27Al(d, X)24Na, E=200-25000 MeV/nucleon; calculated σ. Comparison of the CASCADE code with experimental data.
doi: 10.1140/epja/i2009-10760-9
2008HA05 J.Phys.(London) G35, 014042 (2008) M.Hass, D.Berkovits, T.Y.Hirsh, V.Kumar, M.Lewitowicz, F.de Oliveira, S.Veintraub Light radio-isotopes for nuclear astrophysics and neutrino physics NUCLEAR REACTIONS 14N(d, n), (d, 2n), E < 40 MeV; calculated cross sections production yields.
doi: 10.1088/0954-3899/35/1/014042
2008KU09 Phys.Rev. C 77, 051304 (2008) V.Kumar, M.Hass, Y.Nir-El, G.Haquin, Z.Yungreiss Absence of low-temperature dependence of the decay of 7Be and 198Au in metallic hosts RADIOACTIVITY 7Be(EC); 198Au(β-); measured dependence of decay rate on temperature. Be in Cu host, Au in Al-Au alloy. No evidence found for temperature dependence on half-life.
doi: 10.1103/PhysRevC.77.051304
2008KU16 Phys.Rev. C 78, 044617 (2008) H.Kumawat, V.Jha, B.J.Roy, V.V.Parkar, S.Santra, V.Kumar, D.Dutta, P.Shukla, L.M.Pant, A.K.Mohanty, R.K.Choudhury, S.Kailas Breakup threshold anomaly in the elastic scattering for the 6Li + 90Zr system NUCLEAR REACTIONS 90Zr(6Li, 6Li), E=11, 12, 13, 14, 15, 17, 19, 21, 25, 30 MeV; measured angular distributions, σ, optical potentials, normalization factors. Comparison with Continuum Discretized Coupled Channels calculations.
doi: 10.1103/PhysRevC.78.044617
2007KU07 Pramana 68, 315 (2007) Role of (n, xn) reactions in ADS, IAEA-benchmark and the Dubna Cascade Code NUCLEAR REACTIONS 232Th, 233U(n, xn), E=10-100 MeV; calculated σ.
doi: 10.1007/s12043-007-0036-2
2007KU13 Phys.Rev. C 76, 014309 (2007) V.Kumar, P.Das, R.P.Singh, R.Kumar, S.Muralithar, R.K.Bhowmik Multiparticle M1 band in 134La NUCLEAR REACTIONS 124Sn(14N, 4n), E=67 MeV; measured Eγ, Iγ, γγ-coinc, lifetimes. 134La deduced levels, J, π.
doi: 10.1103/PhysRevC.76.014309
2007KU32 Hyperfine Interactions 175, 121 (2007) V.Kumar, P.Thakur, A.K.Bhati, R.P.Singh, R.K.Bhowmik Electric quadrupole moments of the Kπ = 8- and 23/2- isomeric states in 170, 171, 172Hf NUCLEAR REACTIONS 160Gd(16O, X)170Hf/171Hf/172Hf, E<104 MeV; measured reaction products, Eγ, Iγ; deduced isomers spectroscopic quadrupole moments, quadrupole deformation. Comparison with he multi-quasiparticle calculations.
doi: 10.1007/s10751-008-9579-y
2007SH15 Pramana 68, 307 (2007) M.Sharma, V.Kumar, H.Kumawat, J.Adam, V.S.Barashenkov, S.Ganesan, S.Golovatiouk, S.K.Gupta, S.Kailas, M.I.Krivopustov, H.S.Palsania, V.Pronskikh, V.M.Tsoupko-Sitnikov, N.Vladimirova, H.Westmeier, W.Westmeier Measurement of neutron-induced activation cross-sections using spallation source at JINR and neutronic validation of the Dubna code NUCLEAR REACTIONS 232Th(n, γ), (n, 2n), 197Au(n, γ), (n, α), (n, 2n), (n, 4n), (n, 6n), (n, 7n), (n, 8n), (n, 6np), 59Co(n, α), (n, 2n), (n, 4n), (n, 5n), 181Ta(n, γ), (n, 2n), (n, 4n), (n, 5n), (n, np), E=spectrum; measured spectrum-averaged σ. Spallation neutrons from proton-induced reaction.
doi: 10.1007/s12043-007-0035-3
2006DE15 Phys.Rev. C 73, 034313 (2006) A.Y.Deo, S.B.Patel, S.K.Tandel, S.Muralithar, R.P.Singh, R.Kumar, R.K.Bhowmik, S.S.Ghugre, A.K.Singh, V.Kumar, Amita Systematics of the shears mechanism in silver isotopes NUCLEAR REACTIONS 78Se(32S, 2npα), E=130 MeV; 80Se(30Si, 4np), (30Si, 3np), E=120 MeV; measured Eγ, Iγ, γγ-coin, DSA. 103,105,106Ag levels deduced T1/2, B(M1), B(E2). Comparison with tilted-axis cranking model predictions.
doi: 10.1103/PhysRevC.73.034313
2006TH07 Phys.Rev. C 74, 034329 (2006) P.Thakur, V.Kumar, A.K.Bhati, S.C.Bedi, R.P.Singh, R.K.Bhowmik, A.E.Stuchbery Nuclear g-factor measurements of the 9/2- and 21/2- isomeric states in 173Ta NUCLEAR REACTIONS 165Ho(12C, 4n), E=66 MeV; measured delayed Eγ, Iγ(θ, H, t). 173Ta deduced isomeric states g factors, configurations. Time-dependent perturbed angular distribution technique.
doi: 10.1103/PhysRevC.74.034329
2005AD01 Eur.Phys.J. A 23, 61 (2005) J.Adam, A.R.Balabekyan, V.S.Barashenkov, R.Brandt, V.M.Golovatyuk, V.G.Kalinnikov, K.Katovsky, M.I.Krivopustov, V.Kumar, H.Kumawat, R.Odoj, V.S.Pronskikh, A.A.Solnyshkin, V.I.Stegailov, V.M.Tsoupko-Sitnikov, W.Westmeier Spallation neutron spectrum on a massive lead/paraffin target irradiated with 1 GeV protons NUCLEAR REACTIONS 209Bi(n, 4n), (n, 5n), (n, 6n), (n, 7n), (n, 9n), 232Th(n, γ), 197Au(n, 2n), (n, 4n), (n, 6n), (n, 7n), (n, γ), 59Co(n, 2n), (n, 3n), (n, 4n), (n, 5n), (n, p), (n, 6n2p), 115In(n, 5n), (n, 6n), (n, 7n), E=spectrum; measured Eγ, Iγ; deduced reaction rates. Activation technique, spallation neutrons from 1 GeV proton beam, comparison with model predictions.
doi: 10.1140/epja/i2004-10031-y
2005AD40 Kerntechnik 70, 127 (2005) J.Adam, V.S.Barashenkov, S.Ganesan, S.Golovatiouk, S.K.Gupta, S.Kailas, M.I.Krivopustov, V.Kumar, H.Kumawat, H.S.Palsania, V.Pronskikh, M.Sharma, V.M.Tsoupko-Sitnikov, N.Vladimirova, H.Westmeier, W.Westmeier Measurement of the neutron fluence on the spallation source at Dubna NUCLEAR REACTIONS 232Th, 197Au, 209Bi, 59Co, 115In, 181Ta(n, γ), (n, X), E<1 GeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, neutron fluence, σ. Comparison with the CASCADE code predictions.
doi: 10.3139/124.100234
2005KU40 Eur.Phys.J. A 26, 311 (2005) V.Kumar, P.Thakur, A.K.Bhati, R.P.Singh, R.K.Bhowmik Nuclear quadrupole moments of 5/2- and 9/2- states in 169Ta NUCLEAR REACTIONS 159Tb(16O, 6nγ), E=104 MeV; measured delayed Eγ, Iγ(θ, H, t). 169Ta levels deduced quadrupole moments, T1/2, deformation parameters. Time-dependent perturbed angular correlation.
doi: 10.1140/epja/i2005-10182-3
2003KU12 Eur.Phys.J. A 17, 153 (2003) V.Kumar, P.Das, R.P.Singh, S.Muralithar, R.K.Bhowmik Investigations of low- and high-spin states of 132La NUCLEAR REACTIONS 122Sn(14N, 4n), E=60 MeV; measured Eγ, Iγ, γγ-coin. 132La deduced low- and high-spin levels, J, π, configurations.
doi: 10.1140/epja/i2002-10157-x
2003KU20 Pramana 60, 469 (2003) V.Kumar, H.Kumawat, U.Goel, V.S.Barashenkov Neutron spallation source and the Dubna Cascade Code NUCLEAR REACTIONS W, Pb(p, nX), E=0.8-4 GeV; calculated neutron multiplicity, fragment isotopic yields. Comparison with data.
doi: 10.1007/BF02706153
2001TH23 Hyperfine Interactions 136/137, 201 (2001) P.Thakur, V.Kumar, A.K.Bhati, S.C.Bedi, R.P.Singh, S.Muralithar, R.K.Bhowmik Nuclear g-Factor Measurement of the 9/2- Isomeric State in 171Ta NUCLEAR REACTIONS 159Tb(16O, 4n), E=84 MeV; measured delayed Eγ, Iγ(θ, H, t). 171Ta level deduced g factor. Time-dependent perturbed angular correlation.
doi: 10.1023/A:1020580215495
1996KU04 Int.J.Mod.Phys. E5, 217 (1996) V.Kumar, B.Singh, H.S.Palsania, K.B.Bhalla, S.Lokanathan, S.K.Badyal, N.K.Rao, P.Bharti On the Compression and Multifragmentation of Nuclear Matter at High Energies NUCLEAR REACTIONS Ag, Br(139La, X), E=0.34-0.92 GeV/nucleon; Ag, Br(84Kr, X), E=1.4 GeV/nucleon; analyzed data; deduced nuclear compression, density quantification related features.
doi: 10.1142/S0218301396000104
1996SI26 Appl.Radiat.Isot. 47, 697 (1996) K.Singh, R.Rani, V.Kumar, Kawaldeep Energy Absorption Coefficients for 662 keV γ-Rays in Some Compounds
doi: 10.1016/0969-8043(95)00286-3
1995KU32 Appl.Radiat.Isot. 46, 875 (1995) V.Kumar, Rama Rani, Kawaldeep, K.Singh Study of Some Nuclear Parameters in Decay of 131Ba RADIOACTIVITY 131Ba(EC); measured Eγ, Iγ. 131Cs level deduced K-capture probabilities, branching ratios, K-shell ICC.
doi: 10.1016/0969-8043(95)00174-C
1995KU34 J.Radioanal.Nucl.Chem. 189, 3 (1995) The Decay of 153Gd RADIOACTIVITY 153Gd(EC); measured Eγ, Iγ, I X-ray, E X-ray, relative absolute intensities; deduced K-capture probability, Q(EC). 153Eu levels deduced electron capture intensities. Sum peak method calculations.
doi: 10.1007/BF02040175
1994KU43 Appl.Radiat.Isot. 45, 875 (1994) K-Electron Capture Probability to 165 keV Level in the Decay of 139Ce RADIOACTIVITY 139Ce(EC); measured Iγ/I(K X-ray); calculated K-electron capture probability. 139Ce, 139La deduced mass difference.
doi: 10.1016/0969-8043(94)90218-6
1993KA30 J.Phys.Soc.Jpn. 62, 901 (1993) Kawaldeep, V.Kumar, K.S.Dhillon, K.Singh K-Capture Probabilities to the Excited States of 152Sm in the Decay of 152Eu RADIOACTIVITY 152Eu(β-), (β+), (EC); measured Eγ, Iγ, γ(K X-ray)-sum coincidence. 152Sm levels deduced K-capture probabilities.
1993SI30 Pramana 41, 535 (1993) B.Singh, H.S.Palsania, V.Kumar, K.B.Bhalla, S.Lokanathan Collective Bounce-Off Phenomenon in 139La + Ag(Br) Reaction at 1.1 A GeV Energy NUCLEAR REACTIONS Ag, Br(139La, X), E=1.1 GeV/nucleon; measured target, projectile fragment flow angles, principal vectors' azimuthal angles difference; deduced fragment emission differences' characteristics.
doi: 10.1007/BF02875102
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