NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = B.Maheshwari Found 21 matches. 2024GH03 J.Phys.(London) G51, 045105 (2024) T.Ghosh, Sangeeta, B.Maheshwari, G.Saxena, B.K.Agrawal Indispensability of cross-shell contributions in neutron resonance spacing NUCLEAR STRUCTURE 24Na, 25,26,27Mg; calculated J and π dependent nuclear level densities (NLDs) for a configuration interaction shell model using a numerically efficient spectral distribution method; deduced the s-wave neutron resonance spacing (D0).
doi: 10.1088/1361-6471/ad29e9
2023GA02 At.Data Nucl.Data Tables 150, 101546 (2023) S.Garg, B.Maheshwari, B.Singh, Y.Sun, A.Goel, A.K.Jain Atlas of nuclear isomers-Second edition COMPILATION Z=4-109; compiled, evaluated nuclear structure data, isomeric T1/2, J, π, decay modes.
doi: 10.1016/j.adt.2022.101546
2022GH01 J.Phys.(London) G49, 25103 (2022) T.Ghosh, B.Maheshwari, Sangeeta, G.Saxena, B.K.Agrawal Nuclear level densities away from line of β-stability NUCLEAR STRUCTURE Z=10-80; analyzed available data; deduced nuclear level densities, ground-shell corrections, parameters.
doi: 10.1088/1361-6471/ac44ac
2022MA09 Phys.Rev. C 105, 024315 (2022) B.Maheshwari, D.Choudhury, A.K.Jain Puzzle on isomeric configurations in and around N=126 closed shell NUCLEAR STRUCTURE 208,210,212Po, 210,212,214Rn, 212,214,216Ra, 214,216,218Th, 209,211At, 211,213Fr, 213,215Ac, 215,217Pa; calculated B(E2). 207,209Bi, 209,211At, 211,213Fr, 213,215Ac, 208,210Po, 210,212Rn, 212,214Ra, 214,216Th; calculated quadrupole moments, g-factors for isomeric states. 210, Po, 212, Rn, 214Ra, 216Th, occupancies for the 8+ isomers. Generalized Seniority Schmidt model. Comparison to experimental data.
doi: 10.1103/PhysRevC.105.024315
2022SA17 Phys.Rev. C 105, 044320 (2022) Sangeeta, T.Ghosh, B.Maheshwari, G.Saxena, B.K.Agrawal Astrophysical reaction rates with realistic nuclear level densities NUCLEAR STRUCTURE 51V, 55Fe, 59Ni; calculated ground-state energies, nuclear level densities. 49,50Ti, 51V, 53Cr, 55,57Fe, 59Ni; calculated S-wave neutron resonances. Ground state properties calculated by using shell-model with the GXPF1A residual interaction. Nuclear level densities obtained within the spectral distribution method (SDM). Comparison to available experimental data and other theoretical calculations. NUCLEAR REACTIONS 50V, 54Fe, 58Ni(n, γ), E(cm)<8 MeV; calculated σ(E), astrophysical reaction rates. TALYS 1.95 calculations using nuclear level densities obtained within the spectral distribution method (SDM). Comparison to experimental data and recommended values from ENDF and KADONIS V0.3.
doi: 10.1103/PhysRevC.105.044320
2022SU19 Phys.Rev. C 106, 024316 (2022) S.Suman, S.K.Tandel, S.G.Wahid, T.Manu, M.Hemalatha, B.Maheshwari, A.K.Jain, P.Chowdhury, R.V.F.Janssens, F.G.Kondev, M.P.Carpenter, T.Lauritsen, D.Seweryniak Successive neutron alignments in the yrast, negative-parity band of oblate-deformed 199Tl NUCLEAR REACTIONS 197Au(209Bi, X)199Tl, E=1450 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array with 100 Compton-suppressed HPGe detectors at the ATLAS-ANL accelerator facility. 199Tl; deduced high-spin levels, J, π, alignments, signature slitting, B(M1)/B(E2), configurations, oblate deformation. 199Tl; calculated total energy surfaces in (ϵ cosγ, ϵ sinγ) plane, neutron- and proton-quasiparticle levels for oblate deformation as function of angular frequency with principal axis cranking (PAC) and tilted axis cranking (TAC) models using the ultimate cranker (UC) code.
doi: 10.1103/PhysRevC.106.024316
2021BH10 J.Phys.(London) G48, 075105 (2021) M.Bhuyan, B.Maheshwari, H.A.Kassim, N.Yusof, S.K.Patra, B.V.Carlson, P.D.Stevenson The kinks in charge radii across N = 82 and 126 revisited NUCLEAR STRUCTURE 126,128,130,132,134,136,138Sn, 202,204,206,208,210,212,214Pb; analyzed available data; deduced isotopic shift over the isotopic chains, energy levels, J, π, yrast states within the relativistic mean-field (RMF) and relativistic-Hartree-Bogoliubov (RHB) approach.
doi: 10.1088/1361-6471/abf7d7
2021DE09 Phys.Rev. C 103, 044322 (2021) A.Dey, D.C.Biswas, A.Chakraborty, S.Mukhopadhyay, A.K.Mondal, L.S.Danu, B.Mukherjee, S.Garg, B.Maheshwari, A.K.Jain, A.Blanc, G.de France, M.Jentschel, U.Koster, S.Leoni, P.Mutti, G.Simpson, T.Soldner, C.A.Ur, and W.Urban Measurement of relative isotopic yield distribution of even-even fission fragments from 235U(nth, f) following γ-ray spectroscopy NUCLEAR REACTIONS 235U(n, F)86Se/88Se/88Kr/90Kr/92Kr/92Sr/94Sr/96Sr/96Zr/98Zr/100Zr/102Zr/104Mo/106Mo/130Sn/132Sn/132Te/136Xe/138Xe/140Xe/144Ba/146Ba/144Ce, E=thermal; measured Eγ, Iγ, γγ- and γγγ-coin using the EXILL array of eight EXOGAM Clover detectors, six large coaxial detectors from GASP, and two clovers at ILL-Grenoble for γ detection; deduced relative isotopic yield distributions of the even-even neutron-rich fission fragments. Z=34-54, A=86-142; assigned values of the third component of isospins T3 and total isospins for all the possible even-even fission fragments produced in the 235U(n, F), E=thermal reaction. Comparison with theoretical calculations using the semiempirical GEF model, and isospin conservation (ISCF) approach.
doi: 10.1103/PhysRevC.103.044322
2021MA48 Nucl.Phys. A1014, 122277 (2021) B.Maheshwari, D.Choudhury, A.K.Jain Generalized seniority isomers in and around Z=82 closed shell: A survey of Hg, Pb and Po isotopes NUCLEAR STRUCTURE 185,187,189,191,193,195,197,199Hg, 183,185,187,189,191,193,195,197Pb, 205Pb, 195,197,199,201,203,205,207Po; analyzed available data on g-factors, B(E2); deduced the generalized seniority scheme and the validity of Generalized Seniority Schmidt Model.
doi: 10.1016/j.nuclphysa.2021.122277
2020AG04 Eur.Phys.J. Special Topics 229, 2459 (2020) Pairing, quasi-spin and seniority
doi: 10.1140/epjst/e2020-000047-2
2020MA54 Eur.Phys.J. Special Topics 229, 2485 (2020) A unified view of the first-excited 2+ and 3- states of Cd, Sn and Te isotopes NUCLEAR STRUCTURE 90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128Cd, 92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130Sn, 96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132Te; calculated B(E2), B(E3) values. Comparison with available data.
doi: 10.1140/epjst/e2020-000097-3
2019MA32 Nucl.Phys. A986, 232 (2019) Generalized seniority Schmidt model and the g-factors in semi-magic nuclei NUCLEAR STRUCTURE 102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132Sn, 111,113,115,117,119,121,123,125,127,129,131Sn, 183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199Pb; calculated 2+1 g-factors for even-mass Sn isotopes and for 11/2- and 1+ isomers for Sn odd-mass isotopes, for 13/2- states and 12+ and 3/2- Pb isomers using Generalized Seniority Schmidt Model (GSSM); compared with Schmidt lines and with available data.
doi: 10.1016/j.nuclphysa.2019.03.019
2019MA80 Nucl.Phys. A992, 121619 (2019) B.Maheshwari, H.Abu Kassim, N.Yusof, A.K.Jain Evolution of nuclear structure in and around Z = 50 closed shell: Generalized seniority in Cd, Sn and Te isotopes NUCLEAR STRUCTURE N=50-88; calculated first excited 2+ and 11/2-states, quadrupole moments, B(E2, 2+TO 0+), g-factor for the first 2+ excited states of Cd, Sn, Te; deduced linearly varying quadrupole moments are described using a consistent multi-j configuration within the Generalized Seniority Schmidt Model (GSSM) scheme; deduced asymmetric double-hump behavior of B(E2) values; compared calculated energies of the first 11/2- states and empirical g-factor trend with experimental data.
doi: 10.1016/j.nuclphysa.2019.121619
2017JA09 Phys.Scr. 92, 074004 (2017) Generalized seniority states and isomers in tin isotopes NUCLEAR STRUCTURE 134,136,138Sn, 210Bi, 134Sb; calculated energy levels, J, π, B(E2). Comparison with experimental data.
doi: 10.1088/1402-4896/aa7353
2017MA69 Pramana 89, 75 (2017) B.Maheshwari, S.Garg, A.K.Jain Rapid Communication: Δ ν = 2 seniority changing transitions in yrast 3- states and B(E3) systematics of Sn isotopes NUCLEAR STRUCTURE 110,112,114,116,118,120,122,124,126,128Sn; analyzed available data; deduced B(E3) systematics.
doi: 10.1007/s12043-017-1475-z
2016MA31 Nucl.Phys. A952, 62 (2016) B.Maheshwari, A.K.Jain, B.Singh Asymmetric behavior of the B(E2↑; 0+ → 2+) values in 104-130Sn and generalized seniority NUCLEAR STRUCTURE 104,106,108,110,112,114,116,118,120,122,124,126,128,130Sn; calculated B(E2) for 0+ to 2+1 state using both generalized seniority and seniority guided LSSM (Large Scale Shell Model); compared to data or evaluations; deduced B(E2) dip in the middle of full valence space (seen also in the data).
doi: 10.1016/j.nuclphysa.2016.04.021
2015CH05 Phys.Rev. C 91, 014318 (2015) D.Choudhury, R.Palit, P.Singh, J.Sethi, S.Saha, S.Biswas, H.C.Jain, V.Nanal, R.G.Pillay, R.Donthi, S.K.Jadhav, B.S.Naidu, B.Maheshwari, A.K.Jain, S.C.Pancholi, R.P.Singh, S.Mukhopadhyay, D.C.Biswas, L.S.Danu, S.K.Tandel, L.Chaturvedi, K.R.Devi, S.Singh Role of neutrons in the coexistence of magnetic and antimagnetic rotation bands in 107Cd NUCLEAR REACTIONS 94Zr(18O, 5n), E=90 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear pol), level half-lives by DSAM using INGA array at TIFR-BARC Pelletron-Linac facility. 107Cd; deduced levels, J, π, multipolarity, configuration, B(M1), alignment plots, magnetic (shears) and antimagnetic rotational (MR and AMR) bands. Comparison with tilted axis cranking and semiclassical model (SCM) calculations.
doi: 10.1103/PhysRevC.91.014318
2015JA04 Nucl.Data Sheets 128, 1 (2015) A.K.Jain, B.Maheshwari, S.Garg, M.Patial, B.Singh Atlas of Nuclear Isomers COMPILATION Z=4-109; compiled experimental nuclear structure data on isomers.
doi: 10.1016/j.nds.2015.08.001
2015MA10 Phys.Rev. C 91, 024321 (2015) B.Maheshwari, A.K.Jain, P.C.Srivastava 6+ isomers in neutron-rich Sn isotopes beyond N=82 and effective interactions NUCLEAR STRUCTURE 134,136,138Sn; calculated levels, J, π, B(E2), energies of 6+ seniority isomers, average occupancy of f7/2 and p3/2 orbitals. Shell-model calculations using RCDB effective interaction. Comparison with experimental data and systematics. Modification needed in the RCDB interaction beyond the N=82 magic number.
doi: 10.1103/PhysRevC.91.024321
2014JA10 Nucl.Data Sheets 120, 123 (2014) A.K.Jain, D.Choudhury, B.Maheshwari Conservation of Isospin in Neutron-rich Fission Fragments NUCLEAR REACTIONS 238U, 208Pb(18O, F), 245Cm(n, F), E not given; analyzed available data for fission fragment mass distribution.; deduced the conservation of the total isospin.
doi: 10.1016/j.nds.2014.07.024
2014PA53 Phys.Rev. C 90, 064314 (2014) H.Pai, G.Mukherjee, S.Bhattacharyya, C.Bhattacharya, S.Bhattacharya, T.Bhattacharjee, S.K.Basu, S.Kundu, T.K.Ghosh, K.Banerjee, T.K.Rana, J.K.Meena, R.K.Bhowmik, R.P.Singh, S.Muralithar, S.Chanda, R.Garg, B.Maheshwari, D.Choudhury, A.K.Jain Crossing of large multiquasiparticle magnetic-rotation bands in 198Bi NUCLEAR REACTIONS 185Re(16O, 3n), 187Re(16O, 5n), E=112.5 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(lin pol) using INGA array at 15-UD Pelletron at IUAC facility. Natural Re target. 198Bi; deduced high-spin levels, J, π, multipolarity, bands, multiquasiparticle (qp) configurations, alignments, B(M1). Comparison with tilted-axis cranking (TAC) calculations, and with 197Bi and 197Pb bands. Semiclassical formalism, particle-hole interaction strength
doi: 10.1103/PhysRevC.90.064314
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