NSR Query Results
Output year order : Descending NSR database version of May 21, 2024. Search: Author = K.Mandal Found 6 matches. 2023MO15 Phys.Rev. C 107, 064320 (2023) A.K.Mondal, A.Chakraborty, K.Mandal, U.S.Ghosh, A.Dey, S.Biswas, B.Mukherjee, Krishichayan, S.Chatteerjee, S.K.Das, S.Samanta, R.Raut, S.S.Ghugre, S.Mukhopadhyay, S.Rajbanshi, R.Banik, S.Bhattacharyya, S.Nandi, S.Chakraborty, S.Bhattacharya, G.Mukherjee, S.Ali, A.Goswami, R.Chakrabarti, A.Kumar, R.Goswami Investigation of the low- and medium-spin level structure in ^{77}As NUCLEAR REACTIONS ^{76}Ge(α, 2np), E=40 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ). ^{77}As; deduced levels, J, π, δ, high-spin states, polarization asymmetries, γ-rays deexcitation from the oriented states (DCO) ratio, configurations, band crossing, kinematic and dynamic moments of inertia, neutron alignments, rotational and vibrational bands structure. Observed large signature splitting of the signature partner bands. Presented evidence for the possible onset of stapler like mechanism in the high-lying negative-parity dipole band. Comparison to shell-model (JUN45, jj44b interactions) and particle plus triaxial-rotor model (TPRM) calculations. Indian National Gamma Array (INGA) spectrometer comprising 6 Clover and 1 LEPS detectors at K-130 Cyclotron of the Variable Energy Cyclotron Centre (VECC, Kolkata).
doi: 10.1103/PhysRevC.107.064320
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 ^{78}Se NUCLEAR REACTIONS ^{76}Ge(α, 2n), E=30 MeV; measured Eγ, Iγ, γγ(θ), gγ∓coin. ^{78}Se; deduced levels J, π, DCO, polarization asymmetry, multipolarity, rotational band structures, configurations, alignments, high-spin states; calculated total Routhian surface (TRS) contours in (β_{2}, 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
2020GH08 Phys.Rev. C 102, 024328 (2020) U.S.Ghosh, S.Rai, B.Mukherjee, A.Biswas, A.K.Mondal, K.Mandal, A.Chakraborty, S.Chakraborty, G.Mukherjee, A.Sharma, I.Bala, S.Muralithar, R.P.Singh Spectroscopic investigation of complex nuclear excitations in ^{66}Ga NUCLEAR REACTIONS ^{52}Cr(^{18}O, 3np)^{66}Ga, E=72.5 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization) using the INGA array of 14 Compton-suppressed HPGe clover detectors at the 15-UD pelletron accelerator of IUAC-New Delhi. ^{66}Ga; deduced high-spin levels, J, π, bands, multipolarities, configurations. Comparison with shell model calculations with jj44bpn and jun45pn interactions using NUSHELLX@MSU code. Comparison with data in the ENSDF database, and with ^{68}Ga structure. NUCLEAR STRUCTURE ^{66}Ga; calculated levels, J, π, occupation probabilities of the f_{5/2}, p_{3/2}, p_{1/2}, and g_{9/2} orbitals for protons and neutrons, configurations with the highest probabilities using shell model with jj44bpn and jun45pn interactions and NUSHELLX@MSU code. Comparison with experimental data.
doi: 10.1103/PhysRevC.102.024328
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 ^{78}As NUCLEAR REACTIONS ^{76}Ge(α, np)^{78}As, 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. ^{78}As; 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
2020RA28 Phys.Rev. C 102, 064313 (2020) S.Rai, U.S.Ghosh, B.Mukherjee, A.Biswas, A.K.Mondal, K.Mandal, A.Chakraborty, S.Chakraborty, G.Mukherjee, A.Sharma, I.Bala, S.Muralithar, R.P.Singh Evolution of collectivity and shape transition in ^{66}Zn NUCLEAR REACTIONS ^{52}Cr(^{18}O, 2n2p)^{66}Zn, E=72.5 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization) using INGA array of 14 Compton-suppressed HPGe Clover detectors at the tandem accelerator facility of IUAC-New Delhi. ^{66}Zn; deduced levels, J, π, multipolarities, configurations, alignments, terminating states, shape transitions; calculated total Routhian surfaces (TRS) based on Hartree-Fock-Bogoliuobov formalism.
doi: 10.1103/PhysRevC.102.064313
2019GH09 Phys.Rev. C 100, 034314 (2019) U.S.Ghosh, S.Rai, B.Mukherjee, A.Biswas, A.K.Mondal, K.Mandal, A.Chakraborty, S.Chakraborty, G.Mukherjee, A.Sharma, I.Bala, S.Muralithar, R.P.Singh In-beam spectroscopic study of ^{63}Zn NUCLEAR REACTIONS ^{52}Cr(^{18}O, 3nα), E=72.5 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), linear polarization asymmetries using the INGA array with 14 Compton-suppressed HPGe clover detectors at the 15-UD pelletron accelerator of IUAC-New Delhi. ^{63}Zn; deduced high-spin levels, J, π; calculated total-Routhian surfaces (TRS) using Hartree-Fock-Bogoliubov approach. Comparison with shell-model calculations. NUCLEAR STRUCTURE ^{63}Zn; calculated levels, J, π, proton and neutron orbitals occupation probabilities using shell model code NUSHELLX with jj44bpn interaction in the f_{5/2}pg_{9/2} model space; calculated TRS, and collective excitations with triaxial and prolate shapes using a computer code based on Hartree-Fock-Bogoliubov approach. Comparison with experimental data.
doi: 10.1103/PhysRevC.100.034314
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