NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = D.Negi Found 40 matches. 2024DE08 Phys.Rev. C 109, 034313 (2024) P.Dey, R.Palit, P.C.Srivastava, B.Das, A.Kundu, Md.S.R.Laskar, V.Malik, D.Negi, Sh.Sharma Experimental investigation of high-spin states in 91Nb
doi: 10.1103/PhysRevC.109.034313
2023RA04 Nucl.Phys. A1032, 122622 (2023) Y.Rahma, S.Ouichaoui, J.Kiener, E.A.Lawrie, J.J.Lawrie, V.Tatischeff, A.Belhout, D.Moussa, W.Yahia-Cherif, H.Benhabiles-Mezhoud, T.D.Bucher, T.R.S.Dinoko, A.Chafa, J.L.Conradie, S.Damache, M.Debabi, I.Deloncle, J.L.Easton, M.Fouka, C.Hamadache, F.Hammache, P.Jones, B.V.Kheswa, N.A.Khumalo, T.Lamula, S.N.T.Majola, J.Ndayishimye, D.Negi, S.P.Noncolela, S.Ouziane, P.Papka, S.Peterson, M.Kumar Raju, V.Ramanathan, B.M.Rebeiro, N.de Sereville, J.F.Sharpey-Schafer, O.Shirinda, M.Wiedeking, S.Wyngaardt γ-ray emission in proton-induced nuclear reactions on natC and Mylar targets over the incident energy range, Ep = 30 - 200 MeV. Astrophysical implications NUCLEAR REACTIONS 12C, 16O, 24Mg, 28Si, 56Fe(p, X), E=30-200 MeV; measured reaction products; deduced γ-ray production σ. The K = 200 separated sector cyclotron of iThemba LABS using a high-energy resolution, high-efficiency detection array composed of 8 Compton-suppressed clover detectors comprising 32 HP-Ge crystals for recording the γ-ray energy spectra.
doi: 10.1016/j.nuclphysa.2023.122622
2022BH04 Phys.Rev. C 106, 044312 (2022) S.Bhattacharya, T.Trivedi, A.Mukherjee, D.Negi, R.P.Singh, S.Muralithar, S.Jehangir, G.H.Bhat, N.Nazir, J.A.Sheikh, N.Rather, R.Palit, S.Nag, S.Rajbanshi, S.Chakraborty, S.Kumar, M.Kumar Raju, V.V.Parkar, D.Choudhury, R.Kumar, R.K.Bhowmik, S.C.Pancholi, A.K.Jain Evidence for prolate-oblate shape coexistence in the odd-A 7335Br38 nucleus NUCLEAR REACTIONS 50Cr(28Si, pα)73Br, E=90 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), 73Br; deduced levels, J, π, high-spin states states, bands structure, δ, T1/2 of 9/2+ excited state, polarization asymmetry, DCO and ADO ratios. Comparison to Projected shell model (PSM) calculations and other experimental data. Systematics of monopole transition strength in 73Br, calculated from the semiempirical approach with neighboring Se, Br, and Kr. Evidences provided for the prolate-oblate shape coexistence at low excitation energy. INGA array at IUAC, New Delhi.
doi: 10.1103/PhysRevC.106.044312
2022DE09 Phys.Rev. C 105, 044307 (2022) P.Dey, D.Negi, R.Palit, P.C.Srivastava, Md.S.R.Laskar, B.Das, F.S.Babra, S.Bhattacharya, B.Das, K.Rojeeta Devi, R.Gala, U.Garg, S.S.Ghugre, E.Ideguchi, S.Kumar, A.Kundu, G.Mukherjee, S.Muralithar, S.Nag, S.Nandi, Neelam, M.K.Raja, R.Raut, R.Santra, A.Sharma, S.Sihotra, A.K.Singh, R.P.Singh, T.Trivedi Experimental investigation of high-spin states in 90Zr NUCLEAR REACTIONS 82Se(13C, 5n), E=60 MeV; measured Eγ, Iγ, γγγ-coin, γ(θ). 90Zr; deduced levels, J, π, DCO ratios, polarization asymmetry, multipolarity, high-spin states, bands structure, configurations. Comparison to shell-model calculations with the GWBXG effective interaction. Indian National Gamma Array (INGA) at TIFR-BARC Pelletron Linac Facility.
doi: 10.1103/PhysRevC.105.044307
2022MU03 Phys.Rev. C 105, 014322 (2022) A.Mukherjee, S.Bhattacharya, T.Trivedi, R.P.Singh, S.Muralithar, D.Negi, R.Palit, S.Nag, S.Rajbanshi, M.Kumar Raju, S.Kumar, D.Choudhury, R.Kumar, R.K.Bhowmik, S.C.Pancholi, A.K.Jain Shape coexistence and octupole correlations in 72Se NUCLEAR REACTIONS 50Cr(28Si, 2pα)72Se, E=90 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(θ)(ADO), γγ-linear polarization asymmetries using INGA array of 17 Compton-suppressed clover detectors at the 15UD Pelletron accelerator of IUAC, New Delhi. 72Se; deduced high-spin levels, J, π, multipolarities, multipole mixing ratios, Kπ=0+ bands, γ-band, alignments, B(E1)/B(E2) ratios, octupole correlations, intrinsic dipole moment D0 for the octupole band; calculated single-particle energy as a function of β2 for fixed triaxiality and hexadecapole deformation parameters, single-particle proton and neutron energy levels; bands interpreted in terms of the total Routhian surface (TRS) calculations. Systematics of B(E1)/B(E2) ratios and D0 values for 72Se, 73Br, 114,116,117Xe, 125Ba, and for energies of 3- states for 70,72,74,76,78,80,82Se.
doi: 10.1103/PhysRevC.105.014322
2021LA06 Phys.Rev. C 104, L011301 (2021) Md.S.R.Laskar, R.Palit, E.Ideguchi, T.Inakura, S.N.Mishra, F.S.Babra, S.Bhattacharya, D.Choudhury, B.Das, B.Das, P.Dey, U.Garg, A.K.Jain, A.Kundu, D.Kumar, D.Negi, S.C.Pancholi, S.Rajbanshi, S.Sihotra Enhanced B(E3) strength observed in 137La NUCLEAR REACTIONS 130Te(11B, 4n)137La, E=40 MeV; measured Eγ, Iγ, γγ-coin, level half-life by γγ(t) using an array of 11 Compton-suppressed HPGe clover and 14 LaBr3(Ce) detectors at the Pelletron Linac Facility of TIFR-Mumbai. 137La; deduced levels, J, π, half-life of 1005, 11/2- level, B(E3), sudden increase of B(E3) strength at N=80. Comparison with random-phase approximation (RPA) calculations. Systematics of B(E3) strengths in 129,133La and 132,134,136,138Ba.
doi: 10.1103/PhysRevC.104.L011301
2020IN01 Eur.Phys.J. A 56, 68 (2020) V.W.Ingeberg, S.Siem, M.Wiedeking, K.Sieja, D.L.Bleuel, C.P.Brits, T.D.Bucher, T.S.Dinoko, J.L.Easton, A.Gorgen, M.Guttormsen, P.Jones, B.V.Kheswa, N.A.Khumalo, A.C.Larsen, E.A.Lawrie, J.J.Lawrie, S.N.T.Majola, K.L.Malatji, L.Makhathini, B.Maqabuka, D.Negi, S.P.Noncolela, P.Papka, E.Sahin, R.Schwengner, G.M.Tveten, F.Zeiser, B.R.Zikhali First application of the Oslo method in inverse kinematics
doi: 10.1140/epja/s10050-020-00070-7
2020YA21 Phys.Rev. C 102, 025802 (2020) W.Yahia-Cherif, S.Ouichaoui, J.Kiener, E.A.Lawrie, J.J.Lawrie, V.Tatischeff, A.Belhout, D.Moussa, P.Papka, H.Benhabiles-Mezhoud, T.D.Bucher, A.Chafa, J.L.Conradie, S.Damache, M.Debabi, I.Deloncle, J.L.Easton, C.Hamadache, F.Hammache, P.Jones, B.V.Kheswa, N.A.Khumalo, T.Lamula, S.N.T.Majola, J.Ndayishimye, D.Negi, S.P.Noncolela, N.de Sereville, J.F.Sharpey-Schafer, O.Shirinda, M.Wiedeking, S.Wyngaardt Measurement and analysis of nuclear γ-ray production cross sections in proton interactions with Mg, Si, and Fe nuclei abundant in astrophysical sites over the incident energy range E=30-66 MeV NUCLEAR REACTIONS 24Mg(p, n), (p, 3He), (p, p'), (p, d), (p, 2p), (p, α), (p, p3He), 25Mg(p, 2n), (p, p'), (p, d), (p, α), (p, t), (p, 2p), (p, 3He), (p, nα), (p, pα), 26Mg(p, 3n), (p, p'), (p, d), (p, nα), (p, t), (p, nt), (p, α), (p, nα), (p, 3He), (p, 2nα), (p, dα), 28Si(p, p'), (p, d), (p, 2p), (p, 3He), (p, p3He), (p, 2pα), (p, pα), (p, dα), (p, 2α), (p, pα3He), 29Si(p, p'), (p, d), (p, t), (p, pd), (p, α), (p, pα), (p, α3He), (p, dα), (p, tα), (p, n2α), (p, p2α), 30Si(p, d), (p, t), (p, nt), (p, α), (p, nα), (p, npα), (p, 2α), (p, tα), (p, 2α), (p, ntα), (p, 2n2α), (p, d2α), 56Fe(p, p'), (p, t), (p, d), (p, 3He), (p, α), (p, pα), E=30, 42, 54, 66 MeV; measured Eγ, Iγ, γ(θ), integrated γ-ray cross sections using natural and enriched targets and AFRODITE array with eight Compton-suppressed HPGe clover detectors at the Separated Sector Cyclotron (SSC) of iThemba LABS; deduced angular distribution coefficients and multipolarities of γ-ray transitions, branching ratios and assignments to levels in product nuclei. Comparison to theoretical predictions using the code TALYS, with modified optical model potential (OMP) parameters deformation parameters, and level density parameters. 24Mg(p, p'), E=49.5 MeV; 28Si(p, p'), E=65 MeV; 56Fe(p, p'), E=30, 65 MeV; analyzed σ(θ) data in literature using OPTMAN code; deduced optical potential model parameters, deformation parameters β2, β4 and γ. Comparison with γ-ray cross section data in literature. Discussed astrophysical implications of results of present experiment through TALYS calculation of γ-ray line emission spectra over the photon energy range of 0.1-10 MeV, expected to be generated in interactions of the low-energy cosmic rays (LECRs) in the inner Galaxy.
doi: 10.1103/PhysRevC.102.025802
2019BH04 Phys.Rev. C 100, 014315 (2019) S.Bhattacharya, T.Trivedi, D.Negi, R.P.Singh, S.Muralithar, R.Palit, I.Ragnarsson, S.Nag, S.Rajbanshi, M.Kumar Raju, V.V.Parkar, G.Mohanto, S.Kumar, D.Choudhury, R.Kumar, R.K.Bhowmik, S.C.Pancholi, A.K.Jain Evolution of collectivity and evidence of octupole correlations in 73Br NUCLEAR REACTIONS 50Cr(28Si, pα), E=90 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(lin pol), and level half-lives by DSAM and line-shape method using the INGA array at 15UD Pelletron accelerator of IUAC. 73Br; deduced high-spin levels, J, π, multipolarities, bands, octupole band, B(E2), B(E1), B(M1), B(E1)/B(E2) ratios, transition quadrupole moments, configurations, octupole correlations, possible band termination at higher spin; calculated low-lying configurations, total Routhian surfaces using cranked Nilsson-Strutinsky method, and compared with experimental data.
doi: 10.1103/PhysRevC.100.014315
2019MA70 Phys.Rev. C 100, 044324 (2019) S.N.T.Majola, Z.Shi, B.Y.Song, Z.P.Li, S.Q.Zhang, R.A.Bark, J.F.Sharpey-Schafer, D.G.Aschman, S.P.Bvumbi, T.D.Bucher, D.M.Cullen, T.S.Dinoko, J.E.Easton, N.Erasmus, P.T.Greenlees, D.J.Hartley, J.Hirvonen, A.Korichi, U.Jakobsson, P.Jones, S.Jongile, R.Julin, S.Juutinen, S.Ketelhut, B.V.Kheswa, N.A.Khumalo, E.A.Lawrie, J.J.Lawrie, R.Lindsay, T.E.Madiba, L.Makhathini, S.M.Maliage, B.Maqabuka, K.L.Malatji, P.L.Masiteng, P.I.Mashita, L.Mdletshe, A.Minkova, L.Msebi, S.M.Mullins, J.Ndayishimye, D.Negi, A.Netshiya, R.Newman, S.S.Ntshangase, R.Ntshodu, B.M.Nyako, P.Papka, P.Peura, P.Rahkila, L.L.Riedinger, M.A.Riley, D.G.Roux, P.Ruotsalainen, J.J.Saren, C.Scholey, O.Shirinda, M.A.Sithole, J.Sorri, M.Stankiewicz, S.Stolze, J.Timar, J.Uusitalo, P.A.Vymers, M.Wiedeking, G.L.Zimba β and γ bands in N=88, 90, and 92 isotones investigated with a five-dimensional collective Hamiltonian based on covariant density functional theory: Vibrations, shape coexistence, and superdeformation NUCLEAR REACTIONS 136Xe(18O, 4n)150Sm, E=75 MeV; 148Nd(α, 2n)150Sm, E=25 MeV; 152Sm(α, 4n)152Gd, E=45 MeV; 152Sm(α, 2n)154Gd, E=25 MeV; 155Gd(3He, 4n)154Dy, E=37.5 MeV; 147Sm(12C, 3n)156Er, E=65 MeV; 155Gd(α, 3n)156Dy, E=25 MeV; 144Sm(18O, 4n)158Yb, E=78 MeV; 150Sm(12C, 4n)158Er, E=65 MeV; 156Gd(α, 2n)158Dy, E=27 MeV; 147Sm(16O, 3n)160Yb, E=73 MeV; 152Sm(12C, 4n)160Er, E=64 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization) using the AFRODITE array at the cyclotron facility of the iThemba Labs for 11 reactions, and JUROGAM II array at Jyvaskyla for 148Nd(α, 2n)150Sm and 155Gd(α, 3n)156Dy reactions. 150Sm, 152,154Gd, 154,156,158Dy, 156,160Er, 158,160Yb; deduced levels, J, π, multipolarities, β, γ and 0+ bands, B(E2) ratios. 150,152,154Sm, 152,154,156Gd, 154,156,158Dy, 156,158,160Er, 158,160,162Yb; calculated potential energy surfaces (PES) and probability density distribution contours in (β, γ) plane; deduced staggering parameters, in-band B(E2) values, absolute transition strengths of E0 transitions, X(E0/E2) values from present and previous experimental data. Comparison with 5DCH-CDFT calculations with PC-PK1 density functional.
doi: 10.1103/PhysRevC.100.044324
2019ND01 Phys.Rev. C 100, 014313 (2019) J.Ndayishimye, E.A.Lawrie, O.Shirinda, J.L.Easton, J.J.Lawrie, S.M.Wyngaardt, R.A.Bark, T.D.Bucher, S.P.Bvumbi, T.R.S.Dinoko, P.Jones, N.Y.Kheswa, S.N.T.Majola, P.L.Masiteng, D.Negi, J.N.Orce, J.F.Sharpey-Schafer, M.Wiedeking Competition of rotation around the intermediate and long axes in 193Tl NUCLEAR REACTIONS 160Gd(37Cl, 4n), E=167 MeV; 181Ta(18O, 6n), E=105 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO), γγ(lin pol) using AFRODITE array at iThemba LABS. 193Tl; deduced high-spin levels, J, π, alignments, rotational bands, configurations; calculated potential energy surfaces, and positive-parity quasineutron Routhians using cranked shell model calculations. Comparison with previous experimental data, and with band structures in 194Tl.
doi: 10.1103/PhysRevC.100.014313
2019NE06 Phys.Rev. C 100, 014329 (2019) D.Negi, S.K.Tandel, P.Chauhan, P.Chowdhury, R.V.F.Janssens, M.P.Carpenter, T.L.Khoo, F.G.Kondev, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu Decoupled and semi-decoupled bands in 197Hg and 199Hg NUCLEAR REACTIONS 197Au(209Bi, X)197Hg/199Hg, E=1450 MeV; measured Eγ, Iγ, γγ-coin, and γγ(θ)(DCO) using Gammasphere array at ATLAS-ANL facility. 197,199Hg; deduced high-spin levels, J, π, bands, decoupled positive-parity sequences, alignments, configurations, transition from oblate collective rotation at low spin to triaxial noncollective shapes at high spin; calculated quasiparticle levels and total energy surfaces using Ultimate Cranker calculations with standard Nilsson parameters. Systematics of positive-parity levels in A=193-200 even- and odd-A Hg isotopes.
doi: 10.1103/PhysRevC.100.014329
2018DA15 Phys.Rev. C 98, 014326 (2018) B.Das, P.Datta, S.Chattopadhyay, S.Roy, R.Raut, R.K.Bhowmik, A.Goswami, H.C.Jain, R.Kumar, S.Muralithar, D.Negi, S.Pal, R.Palit, R.P.Singh Coexistence of principal and tilted axis rotation in 110Ag NUCLEAR REACTIONS 96Zr(18O, 3np), E=70 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(lin pol)(PDCO), level half-lives by DSAM using the INGA array at 15-UD Pelletron of IUAC-New Delhi. 110Ag; deduced high-spin levels, J, π, multipolarities, B(M1), B(E2), configurations, possible shears band. Comparison with shears with principal axis cranking (SPAC) calculation.
doi: 10.1103/PhysRevC.98.014326
2018ZI02 Eur.Phys.J. A 54, 59 (2018) G.L.Zimba, S.P.Bvumbi, L.P.Masiteng, P.Jones, J.F.Sharpey-Schafer, S.N.T.Majola, T.S.Dinoko, O.Shirinda, J.J.Lawrie, J.E.Easton, N.A.Khumalo, L.Msebi, P.I.Mashita, P.Papka, D.G.Roux, D.Negi Yrare low-spin positive-parity states in N = 88 66154Dy NUCLEAR REACTIONS 155Gd(3He, 4n), E=37.5 MeV; measured Eγ, Iγ(θ_), γγ-coin, DCO ratios, polarization asymmetries using AFRODITE spectrometer array (9 HPGe clover detectors in BGO shields). 154Dy; deduced levels, J, π, γ-transitions, γ band, Kπ=2+ band, staggering parameter, γ-transitions multipolarity, kinematical moment of inertia vs rotational frequency for yrast band and for non-yrast positive-parity bands, rotational bands states energy relative to liquid-drop reference of the low spin bands. 150Sm, 152Gd, 154Dy, 156Er, 158Yb; deduced staggering parameters vs spin.
doi: 10.1140/epja/i2018-12496-3
2017AL39 Nucl.Phys. A968, 403 (2017) R.Ali, M.Afzal Ansari, D.Singh, R.Kumar, D.P.Singh, M.K.Sharma, U.Gupta, B.P.Singh, P.D.Shidling, D.Negi, S.Muralithar, R.P.Singh, R.K.Bhowmik Observed side feeding in incomplete fusion dynamics in 16O + 160Gd reaction at energy ∼ 5.6 MeV/A: Spin distribution measurements NUCLEAR REACTIONS 160Gd(16O, x), E≈5.6 MeV/nucleon; measured Eγ, Iγ(θ), Ep, Ip(θ), Eα, Iα(θ), pγ-coin, αγ-coin using GDA (Gamma Detector Array) consisting of 12 n-type Compton suppressed HPGE working together with CPDA (Charged Particle Detector Array); deduced relative spin distributions (relative yields vs spin) of different reaction channels, evaporation residues yrast bands side feeding intensities, mean input angular momentum for different reaction channels.
doi: 10.1016/j.nuclphysa.2017.09.005
2017KU09 Acta Phys.Pol. B48, 819 (2017) Symmetries in Mirror Energy Differences
doi: 10.5506/aphyspolb.48.819
2017ND01 Acta Phys.Pol. B48, 343 (2017) J.Ndayishimye, E.A.Lawrie, O.Shirinda, J.L.Easton, S.M.Wyngaardt, R.A.Bark, S.P.Bvumbi, T.R.S.Dinoko, P.Jones, N.Y.Kheswa, J.J.Lawrie, S.N.T.Majola, P.L.Masiteng, D.Negi, J.N.Orce, P.Papka, J.F.Sharpey-Schafer, M.Stankiewicz, M.Wiedeking Chiral Bands in 193Tl NUCLEAR REACTIONS 160Gd(37Cl, 4n), E=167 MeV;181Ta(18O, 6n), E=105 MeV; measured Eγ, Iγ, γγ-coin using 9 clovers at different angles. 193Tl; deduced level, J, π, high-spin, γ transitions, B(M1), B(E2), formed one or two chiral systems.
doi: 10.5506/APhysPolB.48.343
2016LI12 Phys.Rev.Lett. 116, 112501 (2016) C.Liu, S.Y.Wang, R.A.Bark, S.Q.Zhang, J.Meng, B.Qi, P.Jones, S.M.Wyngaardt, J.Zhao, C.Xu, S.-G.Zhou, S.Wang, D.P.Sun, L.Liu, Z.Q.Li, N.B.Zhang, H.Jia, X.Q.Li, H.Hua, Q.B.Chen, Z.G.Xiao, H.J.Li, L.H.Zhu, T.D.Bucher, T.Dinoko, J.Easton, K.Juhasz, A.Kamblawe, E.Khaleel, N.Khumalo, E.A.Lawrie, J.J.Lawrie, S.N.T.Majola, S.M.Mullins, S.Murray, J.Ndayishimye, D.Negi, S.P.Noncolela, S.S.Ntshangase, B.M.Nyako, J.N.Orce, P.Papka, J.F.Sharpey-Schafer, O.Shirinda, P.Sithole, M.A.Stankiewicz, M.Wiedeking Evidence for Octupole Correlations in Multiple Chiral Doublet Bands NUCLEAR REACTIONS 70Zn(12C, 3np), E=60, 65 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced energy levels, J, π, medium- amd high-spin states, yrast positive- and negative-parity bands. Comparison with microscopic multidimensionally-constrained covariant density functional theory and triaxial particle rotor model calculations.
doi: 10.1103/PhysRevLett.116.112501
2016NE08 Phys.Rev. C 94, 024332 (2016) D.Negi, M.Wiedeking, E.G.Lanza, E.Litvinova, A.Vitturi, R.A.Bark, L.A.Bernstein, D.L.Bleuel, S.Bvumbi, T.D.Bucher, B.H.Daub, T.S.Dinoko, J.L.Easton, A.Gorgen, M.Guttormsen, P.Jones, B.V.Kheswa, N.A.Khumalo, A.C.Larsen, E.A.Lawrie, J.J.Lawrie, S.N.T.Majola, L.P.Masiteng, M.R.Nchodu, J.Ndayishimye, R.T.Newman, S.P.Noncolela, J.N.Orce, P.Papka, L.Pellegri, T.Renstrom, D.G.Roux, R.Schwengner, O.Shirinda, S.Siem Nature of low-lying electric dipole resonance excitations in 74Ge NUCLEAR REACTIONS 74Ge(α, α'), E=48 MeV; measured Eγ, Iγ, Eα, αγ-coin, γ(θ), σ(θ) for scattered α particles, relative cross sections of E1 transitions using AFRODITE array for γ detection and silicon detectors for α particles at iThemba Labs cyclotron facility. 74Ge; deduced levels, J, π, B(E1), suppression in relative cross section for the excitation of pygmy-dipole resonances (PDR) as compared to those in (γ, γ') data for excitations above 6 MeV. Comparison of B(E1) with relativistic quasiparticle time blocking approximation (RQTBA) calculations.
doi: 10.1103/PhysRevC.94.024332
2016OR06 Eur.Phys.J. A 52, 166 (2016) J.N.Orce, M.Kumar Raju, N.A.Khumalo, T.S.Dinoko, P.Jones, R.A.Bark, E.A.Lawrie, S.N.T.Majola, L.M.Robledo, B.Rubio, M.Wiedeking, J.Easton, E.A.Khaleel, B.V.Kheswa, N.Kheswa, M.S.Herbert, J.J.Lawrie, P.L.Masiteng, M.R.Nchodu, J.Ndayishimye, D.Negi, S.P.Noncolela, S.S.Ntshangase, P.Papka, D.G.Roux, O.Shirinda, P.S.Sithole, S.W.Yates Search for two-phonon octupole excitations in 146Gd NUCLEAR REACTIONS 144Sm(α, 2n), E=26.1-26.8 MeV; measured Eγ, Iγ(θ), γγ-coin. 148Gd deduced γ-ray energy spectra gated by specified γ transitions, relative γ intensities in depopulating the 6+ (3484.5 keV) state, linear polarization, B(E3) for one-photon and two-photon excitations; calculated B(E3) using GCM with Gogny D1S force.
doi: 10.1140/epja/i2016-16166-2
2016RE13 Phys.Rev. C 93, 064302 (2016) T.Renstrom, H.-T.Nyhus, H.Utsunomiya, R.Schwengner, S.Goriely, A.C.Larsen, D.M.Filipescu, I.Gheorghe, L.A.Bernstein, D.L.Bleuel, T.Glodariu, A.Gorgen, M.Guttormsen, T.W.Hagen, B.V.Kheswa, Y.-W.Lui, D.Negi, I.E.Ruud, T.Shima, S.Siem, K.Takahisa, O.Tesileanu, T.G.Tornyi, G.M.Tveten, M.Wiedeking Low-energy enhancement in the γ-ray strength functions of 73, 74Ge NUCLEAR REACTIONS 74Ge(3He, 3He), (3He, α), E=38 MeV; measured Eγ, Iγ, (particle)γ-coin using SiRi particle detector array and CACTUS array for γ detection at Oslo Cyclotron Laboratory (OCL) facility. 74Ge(γ, n), E=10.4-12.7 MeV; measured E(n), I(n), σ(E) using 4π neutron detection array at NewSUBARU synchrotron radiation facility. 73,74Ge, deduced γ-strength functions (γSF), nuclear level densities (NLD). Comparison with shell-model calculations. 72,73Ge(n, γ), E=0.001-3 MeV; deduced experimentally constrained σ(E), and compared with TALYS calculations for E1 and M1 radiations.
doi: 10.1103/PhysRevC.93.064302
2016ZI04 Phys.Rev. C 94, 054303 (2016) G.L.Zimba, J.F.Sharpey-Schafer, P.Jones, S.P.Bvumbi, L.P.Masiteng, S.N.T.Majola, T.S.Dinoko, E.A.Lawrie, J.J.Lawrie, D.Negi, P.Papka, D.Roux, O.Shirinda, J.E.Easton, N.A.Khumalo Octupole correlations in N = 88 154Dy: Octupole vibration versus stable deformation NUCLEAR REACTIONS 155Gd(3He, 4n), E=37.5 MeV; measured Eγ, Iγ, γγ-coin using AFRODITE array at the Cyclotron facility of the iThemba Laboratory. 154Dy; deduced levels, J, π, bands, B(E1)/B(E2) ratios, E1 transitions, level energy differences between the positive- and negative-parity bands, octupole deformation. Comparison with level-energy differences and B(E1)/B(E2) ratios in 150Sm, 152Gd, 224Ra.
doi: 10.1103/PhysRevC.94.054303
2015RA02 Phys.Rev. C 91, 024319 (2015) M.K.Raju, D.Negi, S.Muralithar, R.P.Singh, J.A.Sheikh, G.H.Bhat, R.Kumar, I.Bala, T.Trivedi, A.Dhal, K.Rani, R.Gurjar, D.Singh, R.Palit, B.S.Naidu, S.Saha, J.Sethi, R.Donthi, S.Jadhav High spin spectroscopy and shape evolution in 105Cd NUCLEAR REACTIONS 92Mo(16O, n2p), E=75 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear pol) using INGA array at TIFR-14UD Pelletron accelerator facility. 105Cd; deduced high-spin levels, J, π, multipolarity, bands, configurations, alignments. Comparison with triaxial projected shell model (TPSM), cranked shell model (CSM), and total Routhian surface (TRS) calculations. Systematics of level energies for νh11/2 bands in 103,105,107,109Cd.
doi: 10.1103/PhysRevC.91.024319
2015XU09 Phys.Rev. C 91, 061303 (2015) C.Xu, X.Q.Li, J.Meng, S.Q.Zhang, H.Hua, S.Y.Wang, B.Qi, C.Liu, Z.G.Xiao, H.J.Li, L.H.Zhu, Z.Shi, Z.H.Li, Y.L.Ye, D.X.Jiang, J.J.Sun, Z.H.Zhang, Y.Shi, P.W.Zhao, Q.B.Chen, W.Y.Liang, R.Han, C.Y.Niu, C.G.Li, C.G.Wang, Z.H.Li, S.M.Wyngaardt, R.A.Bark, P.Papka, T.D.Bucher, A.Kamblawe, E.Khaleel, N.Khumalo, E.A.Lawrie, J.J.Lawrie, P.Jones, S.M.Mullins, S.Murray, M.Wiedeking, J.F.Sharpey-Schafer, S.N.T.Majola, J.Ndayishimye, D.Negi, S.P.Noncolela, S.S.Ntshangase, O.Shirinda, P.Sithole, M.A.Stankiewicz, J.N.Orce, T.Dinoko, J.Easton, B.M.Nyako, K.Juhasz Spectroscopy of 76Se: Prolate-to-oblate shape transition NUCLEAR REACTIONS 70Zn(12C, 2nα), E=60, 65 MeV; measured Eγ, Iγ, γγ-, (particle)γγ-coin using AFRODITE array for γ rays and DIAMANT array for charged particles at iThemba LABS. 76Se; deduced high-spin levels, J, π, bands, configuration, kinematic and dynamic moments of inertia, band crossing frequency, shape transition. Comparison with cranked shell-model calculations. systematics of band crossings in 70,72,74,76,78,80Se, 72,74,76,78,80,82Kr.
doi: 10.1103/PhysRevC.91.061303
2012DH01 Eur.Phys.J. A 48, 28 (2012) A.Dhal, R.K.Sinha, D.Negi, T.Trivedi, M.K.Raju, D.Choudhury, G.Mohanto, S.Kumar, J.Gehlot, R.Kumar, S.Nath, S.S.Ghugre, R.P.Singh, J.J.Das, S.Muralithar, N.Madhavan, J.B.Gupta, A.K.Sinha, A.K.Jain, I.M.Govil, R.K.Bhowmik, S.C.Pancholi, L.Chaturvedi Shape evolution in odd-A 137Pm NUCLEAR REACTIONS 109Ag(32S, 2n2p), E=150 MeV; measured Eγ, Iγ using array of Compton suppressed clover detectors; deduced levels, J, π, γ transitions, bands, rotational bands, γ transition linear polarization, high spin, B(M1), B(E2); calculated nuclear deformation, shape evolution using TRS (Total Routhian Surface), CSM (cranked Shell Model).
doi: 10.1140/epja/i2012-12028-3
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
2012RO08 Phys.Lett. B 710, 587 (2012) S.Roy, N.Rather, P.Datta, S.Chattopadhyay, R.A.Bark, S.Pal, S.Bhattacharya, R.K.Bhowmik, A.Goswami, H.C.Jain, R.Kumar, E.Lawrie, S.Muralithar, D.Negi, R.Palit, R.P.Singh Emergence of principal axis rotation in 110Ag NUCLEAR REACTIONS 96Zr(18O, 3np)110Ag, E=70 MeV; measured reaction products, Eγ, Iγ; deduced level scheme, J, π, B(E2), B(M1), deformation, negative-parity yrast band, high spin levels lifetime. Comparison with systematics, Total Routhian Surface and TQPTR calculations.
doi: 10.1016/j.physletb.2012.03.035
2012TR01 Phys.Rev. C 85, 014327 (2012) T.Trivedi, R.Palit, J.Sethi, S.Saha, S.Kumar, Z.Naik, V.V.Parkar, B.S.Naidu, A.Y.Deo, A.Raghav, P.K.Joshi, H.C.Jain, S.Sihotra, D.Mehta, A.K.Jain, D.Choudhury, D.Negi, S.Roy, S.Chattopadhyay, A.K.Singh, P.Singh, D.C.Biswas, R.K.Bhowmik, S.Muralithar, R.P.Singh, R.Kumar, K.Rani Small quadrupole deformation for the dipole bands in 112In NUCLEAR REACTIONS 100Mo(16O, 3np), E=80 MeV; measured Eγ, Iγ, γγ-coin, DCO, linear polarization, half-lives by DSAM using INGA array. 112In; deduced levels, J, π, bands, multipolarity, configuration, B(M1), magnetic-dipole rotational band. Comparison with tilted axis cranking model calculations.
doi: 10.1103/PhysRevC.85.014327
2012TR05 Int.J.Mod.Phys. E21, 1250049 (2012) T.Trivedi, P.C.Srivastava, D.Negi, I.Mehrotra Shell model description of 102-108Sn isotopes NUCLEAR STRUCTURE 102,103,104,105,106,107,108Sn; calculated energy levels, J, π, B(E2). Shell model calculations, comparison with available data.
doi: 10.1142/S0218301312500498
2012TR11 J.Phys.:Conf.Ser. 381, 012061 (2012) T.Trivedi, R.Palit, J.Sethi, S.Saha, S.Kumar, Z.Naik, V.V.Parkar, B.S.Naidu, A.Y.Deo, A.Raghav, P.K.Joshi, H.C.Jain, S.Sihotra, D.Mehta, A.K.Jain, D.Choudhury, D.Negi, S.Roy, S.Chattopadhyay, A.K.Singh, P.Singh, D.C.Biswas, R.K.Bhowmik, S.Muralithar, R.P.Singh, R.Kumar, K.Rani Structure of Dipole Bands in 112In: Through Lifetime Measurement NUCLEAR REACTIONS 100Mo(16O, 3np), E=80 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced B(M1), a negative-parity dipole band, 112In lifetime and magnetic rotation. Tilted axis cranking (TAC) calculations.
doi: 10.1088/1742-6596/381/1/012061
2011AP01 Phys.Rev. C 83, 034605 (2011) S.Appannababu, S.Mukherjee, B.K.Nayak, R.G.Thomas, P.Sugathan, A.Jhingan, E.Prasad, D.Negi, N.N.Deshmukh, P.K.Rath, N.L.Singh, R.K.Choudhury Fission fragment mass distributions in reactions forming the 213Fr compound nucleus NUCLEAR REACTIONS 186W(27Al, X), E=123-140 MeV; 197Au(16O, X), E=79-100 MeV; measured fission fragment spectra; deduced density plots for mass ratio vs center of mass angle, mass ratio distributions 213Fr; deduced mass variance. Comparison with theoretical calculations.
doi: 10.1103/PhysRevC.83.034605
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
2011MU20 J.Phys.:Conf.Ser. 312, 052015 (2011) S.Muralithar, K.Rani, R.P.Singh, R.Kumar, J.J.Das, J.Gehlot, K.S.Golda, A.Jhingan, N.Madhavan, S.Nath, P.Sugathan, T.Varughese, M.Archunan, P.Barua, A.Gupta, M.Jain, A.Kothari, B.P.A.Kumar, A.J.Malyadri, U.G.Naik, R.Kumar, R.Kumar, J.Zacharias, S.Rao, S.K.Saini, S.K.Suman, M.Kumar, E.T.Subramaniam, S.Venkataramanan, A.Dhal, G.Jnaneswari, D.Negi, M.K.Raju, T.Trivedi, R.K.Bhowmik, for the INGA collaboration Indian National Gamma Array at IUAC NUCLEAR REACTIONS 94Mo(16O, 2np), E=70 MeV;130Te(14N, 5n), E=75 MeV; measured reaction products, Eγ, Iγ, γ-γ-, γ-γ-γ-coin. 107In, 139Pr; deduced energy levels, delayed γ-transition of isomer with T1/2.
doi: 10.1088/1742-6596/312/5/052015
2011RO01 Phys.Lett. B 694, 322 (2011) S.Roy, S.Chattopadhyay, P.Datta, S.Pal, S.Bhattacharya, R.K.Bhowmik, A.Goswami, H.C.Jain, R.Kumar, S.Muralithar, D.Negi, R.Palit, R.P.Singh Systematics of antimagnetic rotation in even-even Cd isotopes NUCLEAR STRUCTURE 106,108,110Cd; calculated total angular momentum, B(E2), bands for high-spin states. Antimagnetic rotation model. NUCLEAR REACTIONS 96Zr(18O, 4n)110Cd, E=70 MeV; measured Eγ, Iγ; deduced level lifetimes, B(E2). Comparison with AMR + rotation model.
doi: 10.1016/j.physletb.2010.10.018
2010CH54 Phys.Rev. C 82, 061308 (2010); Comm.On Phys.Rev. C 87, 059801 (2013) D.Choudhury, A.K.Jain, M.Patial, N.Gupta, P.Arumugam, A.Dhal, R.K.Sinha, L.Chaturvedi, P.K.Joshi, T.Trivedi, R.Palit, S.Kumar, R.Garg, S.Mandal, D.Negi, G.Mohanto, S.Muralithar, R.P.Singh, N.Madhavan, R.K.Bhowmik, S.C.Pancholi Evidence of antimagnetic rotation in odd-A 105Cd NUCLEAR REACTIONS 94Zr(16O, 5n), E=93 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), and half-lives using Doppler shift attenuation method. 105Cd; deduced levels, J, π, band, B(E2), antimagnetic rotation. Comparison with semiclassical particle rotor model (SCM).
doi: 10.1103/PhysRevC.82.061308
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
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
2010TR05 Nucl.Phys. A834, 72c (2010) T.Trivedi, R.Palit, D.Negi, Z.Naik, Y.-C.Yang, Y.Sun, J.A.Sheikh, A.Dhal, M.K.Raju, S.Appannababu, S.Kumar, D.Choudhury, K.Maurya, G.Mahanto, R.Kumar, R.P.Singh, S.Muralithar, A.K.Jain, H.C.Jain, S.C.Pancholi, R.K.Bhowmik, I.Mehrotra Lifetime measurement of high spin states in 75Kr NUCLEAR REACTIONS 50Cr(28Si, n2p), E=90 MeV; measured Eγ, Iγ(θ, t); deduced T1/2, transitional quadrupole moment. Comparison with nearby nuclei.
doi: 10.1016/j.nuclphysa.2010.01.021
2009TR07 Phys.Rev. C 80, 047302 (2009); Publishers Note, Phys.Rev. C 80, 059902 (2009) T.Trivedi, R.Palit, D.Negi, Z.Naik, Y.-C.Yang, Y.Sun, J.A.Sheikh, A.Dhal, M.K.Raju, S.Appannababu, S.Kumar, D.Choudhury, K.Maurya, G.Mahanto, R.Kumar, R.P.Singh, S.Muralithar, A.K.Jain, H.C.Jain, S.C.Pancholi, R.K.Bhowmik, I.Mehrotra Shape evolution of the highly deformed 75Kr nucleus examined with the Doppler-shift attenuation method NUCLEAR REACTIONS 50Cr(28Si, n2p), E=90 MeV; measured Eγ, Iγ, γγ-coin, and half-lives by Doppler-shift attenuation method. 75Kr; deduced levels, J, π, bands, B(E2), transitional quadrupole moments, and configurations. Comparison with projected shell model calculations.
doi: 10.1103/PhysRevC.80.047302
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