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NSR database version of May 20, 2024.

Search: Author = M.S.Sarkar

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2024GU02      Nucl.Phys. A1042, 122806 (2024)

A.Gupta, S.Sharma, S.Das, A.Adhikari, A.Mondal, M.Chowdhury, Ch.D.Bagdia, L.Tribedi, V.Nanal, A.Bisoi, M.S.Sarkar, S.Sarkar

Lifetime measurement of the Ex = 2485.3 keV level of 25Al populated through 24Mg(p, γ)25Al resonance reaction

NUCLEAR REACTIONS 24Mg(p, γ), E=220-265 keV; measured reaction products, Eγ, Iγ. 25Al; deduced γ-ray energies, energy levels, J, π, resonance state T1/2, spectroscopic factor, γ-ray branching ratio, resonance parameters. Comparison with theoretical calculations. Doppler shift attenuation (DSA) method, the 14.5 GHz electron cyclotron resonance (ECR) ion accelerator at TIFR, Mumbai.

doi: 10.1016/j.nuclphysa.2023.122806
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2021DA02      Nucl.Phys. A1006, 122079 (2021)

S.Das, A.Adhikari, S.S.Alam, S.Sharma, S.Aich, A.Gupta, Y.Sapkota, A.Das, A.Saha, S.K.Dey, D.Pramanik, A.Bisoi, I.Ray, T.Bhattacharjee, C.C.Dey, S.Sarkar, M.S.Sarkar

Decay spectroscopy of 117, 118Sn

RADIOACTIVITY 117,118Sb(EC), 117Sn(IT) [from In(α, X), E=32 MeV]; measured decay products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies and intensities, J, π, level T1/2. Comparison with available data, shell model calculations.

doi: 10.1016/j.nuclphysa.2020.122079
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2021DA14      Nucl.Phys. A1014, 122262 (2021)

S.Das, M.S.Sarkar

Cross-shell excitations in doubly magic 132Sn and its nearest neighbours

NUCLEAR STRUCTURE 131,132Sn, 132,134Sb, 133,134,135Te, 135I; calculated binding energies, positive and negative parity states, high-spin states, transition rates of yrast states which arise from cross-shell excitations using large-scale shell-model. Comparison with available data.

doi: 10.1016/j.nuclphysa.2021.122262
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2020AL17      Eur.Phys.J. A 56, 269 (2020)

S.S.Alam, D.Banerjee, T.Bhattacharjee, P.Blaha, D.Kumar, A.Saha, M.S.Sarkar, S.Sarkar, S.K.Das

Measurement of electric quadrupole moment in neutron rich 131, 132I

RADIOACTIVITY 131,132Te(β-) [from U(α, F), E=40 MeV]; measured decay products, quadrupole frequencies, Eγ, Iγ; deduced γ-ray energies, J, π, electric quadrupole moments, deformation parameters, evolution of collectivity. Comparison with a large basis shell model calculations.

doi: 10.1140/epja/s10050-020-00281-y
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2020DA05      Phys.Rev. C 101, 044310 (2020)

A.Das, A.Bisoi, M.S.Sarkar, S.Sarkar, S.Ray, D.Pramanik, R.Kshetri, S.Nag, P.Singh, K.Selvakumar, A.Goswami, S.Saha, J.Sethi, T.Trivedi, B.S.Naidu, R.Donthi, V.Nanal, R.Palit

High spin states of 37Ar

NUCLEAR REACTIONS 27Al(12C, np), E=40 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO and ADO), γγ(linear polarization) using the INGA array at the 14UD Pelletron accelerator of TIFR-Mumbai. 37Ar; deduced high-spin levels, J, π, γ-branching ratios, multipolarities, mixing ratios, B(E1), B(M1), B(E2), B(M2). Comparison with large basis shell model calculations using OXBASH code with SDPFMW interaction, and with simple two-level mixing calculation. Comparison with previous experimental results.

NUCLEAR STRUCTURE 37Ar; calculated levels, J, π, γ-branching ratios, wave functions amplitudes and partitions for the positive- and negative-parity states, B(E1), B(M1), B(E2), B(M2), level half-lives, 0p-0h configuration mixing in yrast levels. Large basis shell model calculations using OXBASH code with SDPFMW interaction, and simple two-level mixing calculations. Comparison with experimental data.

doi: 10.1103/PhysRevC.101.044310
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2020RA14      Phys.Rev. C 102, 024315 (2020)

R.Rahaman, A.Bisoi, Y.Sapkota, A.Adhikari, A.Das, S.Sarkar, M.S.Sarkar, A.Goswami, S.Ray, M.R.Basu, D.Kanjilal, S.Nag, K.Selvakumar, N.Madhavan, S.Muralithar, R.K.Bhowmik

Spectroscopic study of 38K above the 31.67 μs isomer

NUCLEAR REACTIONS 12C(28Si, np)38K, E=110 MeV; measured Eγ, Iγ, γγ(θ)(DCO and ADO), γγ(linear polarization) using the INGA array at 15UD Pelletron accelerator of IUAC-New Delhi. 38K; deduced high-spin levels above the 31.67-μs isomer, J, π, multipolarities, mixing ratios. 35Cl; measured γγ(θ)(DCO and ADO ratios) for six γ rays. Comparison with large-basis shell-model calculations using the code OXBASH.

NUCLEAR STRUCTURE 38K; calculated levels, J, π, B(M1), B(E2), B(E3), spectroscopic factors, structure of the wave functions for excited states using large-basis shell-model calculations using the code OXBASH with different particle restrictions in sd- and pf -shell orbitals. Comparison with experimental data.

doi: 10.1103/PhysRevC.102.024315
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2020SH21      Phys.Rev. C 102, 024308 (2020)

S.Sharma, A.Gupta, M.Roy Chowdhury, A.Mandal, A.Bisoi, V.Nanal, L.C.Tribedi, M.S.Sarkar

Proton capture resonant state of 15O at 7556 keV

NUCLEAR REACTIONS 14N(p, γ), E=278-312 keV; measured Eγ, Iγ, level half-lives by Doppler-shift attenuation method (DSAM) using ECRIA accelerator at TIFR-Mumbai. 15O; deduced levels, resonances, 278-keV proton resonance and its strength; calculated levels, J, π, spectroscopic factors using large basis shell model calculations, and compared with results of the present and previous experiments.

doi: 10.1103/PhysRevC.102.024308
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2020SH34      Nucl.Instrum.Methods Phys.Res. A964, 163810 (2020)

S.Sharma, A.Gupta, B.Dey, M.Roy Chowdhury, A.Mandal, A.Bisoi, V.Nanal, L.C.Tribedi, M.S.Sarkar

Characterization of an electrically cooled BEGe detector till Eγ ∼ MeV

NUCLEAR REACTIONS 14N(p, γ), E=0.122-7 MeV; measured reaction products, Eγ, Iγ; deduced detector characterization. Comparison with GEANT4 simulation with 152Eu γ-ray intensities taken from ENSDF data library.

doi: 10.1016/j.nima.2020.163810
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2019AL03      Phys.Rev. C 99, 014306 (2019)

S.S.Alam, T.Bhattacharjee, D.Banerjee, A.Saha, S.Das, M.S.Sarkar, S.Sarkar

Lifetimes and transition probabilities for the low-lying states in 131I and 132Xe

RADIOACTIVITY 131mTe[from 238U(α, F), E=40 MeV]; 132I(β-)[from decay of 132Te formed in 238U(α, F), E=40 MeV]; measured Eγ, Iγ, γγ-coin, level half-lives by γγ(t) fast-timing method, and half-life of 1797-keV nanosecond isomer in 131I by slope method using the VENTURE array of CeBr3 scintillators and VENUS arrays of six Compton-suppressed Clover HPGe detectors at the K-130 cyclotron facility of VECC, Kolkata. 131I, 132Xe; deduced levels, J, π, configurations, B(E1), B(E2), B(E3). Systematics of E1 decays from 11/2- levels in 121,123,125,127,131I, and 13/2- and 15/2- levels in 129Sb, 131,133I. Comparison with large-basis shell model calculations using the NUSHELLX code.

NUCLEAR STRUCTURE 131I, 132Xe; calculated levels, J, π, dominant particle partitions, configurations, and level half-lives using the large-basis shell model (LBSM) with the NUSHELLX code. Comparison with experimental data.

doi: 10.1103/PhysRevC.99.014306
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2019SA61      J.Phys.(London) G46, 055102 (2019); Corrigendum J.Phys.(London) G46, 109501 (2019)

A.Saha, T.Bhattacharjee, D.Curien, J.Dudek, I.Dedes, K.Mazurek, A.Gozdz, S.Tagami, Y.R.Shimizu, S.R.Banerjee, S.Rajbanshi, A.Bisoi, G.de Angelis, S.Bhattacharya, S.Bhattacharyya, S.Biswas, A.Chakraborty, S.Das Gupta, B.Dey, A.Goswami, D.Mondal, D.Pandit, R.Palit, T.Roy, R.P.Singh, M.S.Sarkar, S.Saha, J.Sethi

Spectroscopy of a tetrahedral doubly magic candidate nucleus 16070Yb90

NUCLEAR REACTIONS 148Sm(16O, 4n)160Yb, E=90 MeV; measured reaction products, Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(θ)(ADO) and γγ(linearpol) using INGA array of 20 Compton-suppressed HPGe clover detectors at TIFR pelletron facility. 160Yb; deduced high-spin levels, J, π, multipolarities, rotational bands, alignments, tetrahedral deformation. Systematics of g.s. and negative-parity bands in 152,154,156Gd.

doi: 10.1088/1361-6471/ab0573
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2018BI04      Phys.Rev. C 97, 044317 (2018)

A.Bisoi, A.Das, M.S.Sarkar, S.Sarkar

Cluster states at low excitation energy in 34S

NUCLEAR STRUCTURE 34S, 35Cl, 36Ar; calculated levels, J, π, superdeformed states in 35Cl and 36Ar. 34S; calculated spectroscopic factors for one-nucleon transfer from 35Cl and two-nucleon transfers from 36Ar to obtain parentage of states in 34S from core (normal and superdeformed) states in 35Cl and 36Ar, and from core states in 32S, 30Si+α cluster structures. Large basis shell-model (LBSM) calculations with SDPFMWPN interaction using OXBASH computer code. Comparison with experimental data.

doi: 10.1103/PhysRevC.97.044317
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2018SA07      Phys.Scr. 93, 034001 (2018)

A.Saha, T.Bhattacharjee, D.Curien, I.Dedes, K.Mazurek, S.R.Banerjee, S.Rajbanshi, A.Bisoi, G.de Angelis, S.Bhattacharya, S.Bhattacharyya, S.Biswas, A.Chakraborty, S.Das Gupta, B.Dey, A.Goswami, D.Mondal, D.Pandit, R.Palit, T.Roy, R.P.Singh, M.S.Sarkar, S.Saha, J.Sethi

Excited negative parity bands in 160Yb

NUCLEAR REACTIONS 148Sm(16O, 4n)160Yb, E=90 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, B(E2)/B(E1) ratios, non-yrast negative parity structures, bands. Comparison with energy calculation results obtained using the standard Woods-Saxon universal Hamiltonian.

doi: 10.1088/1402-4896/aaa1fa
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2018SA22      Nucl.Phys. A976, 1 (2018)

A.Saha, T.Bhattacharjee, S.S.Alam, D.Banerjee, M.S.Sarkar, S.Sarkar, J.B.Gupta, P.Das, S.Bhattacharya, D.Pandit, R.Guin, S.K.Das, S.R.Banerjee

Spectroscopy of low lying states in 150Sm

NUCLEAR REACTIONS 150Nd(p, n)150Sm, E=8.0 MeV; measured Eγ, Iγ, γγ-coin using VENUS array of six Compton-suppressed Clover HPGe. 150Sm deduced γ transitions, levels, J, π, spin and parity using NNDC logft calculator and angular correlations; estimated possible M2 admixture, B(E1).

doi: 10.1016/j.nuclphysa.2018.05.005
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2017AL30      Phys.Rev. C 96, 021304 (2017)

S.Ali, S.Rajbanshi, B.Das, S.Chattopadhyay, M.S.Sarkar, A.Goswami, R.Raut, A.Bisoi, S.Nag, S.Saha, J.Sethi, R.Palit, G.Gangopadhyay, T.Bhattacharjee, S.Bhattacharyya, G.Mukherjee, A.K.Singh, T.Trivedi

Evidence of antimagnetic rotation in an odd-odd nucleus: The case of 142Eu

NUCLEAR REACTIONS 116Cd(31P, 5n), E=148 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ)(ADO and DCO ratios), γγ(linear polarization), level half-lives by DSAM using INGA array at 14UD Pelletron-Linear facility of TIFR-Mumbai. 142Eu; deduced high-spin levels, J, π, band, multipolarities, mixing ratio, B(E2), dynamic moment of inertia J(2), J(2)/B(E2) ratios, antimagnetic rotational (AMR) band, and configuration. Comparison with predictions of semiclassical geometric model, and with the experimental data for AMR band in 143Eu.

doi: 10.1103/PhysRevC.96.021304
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2016BI02      Phys.Rev. C 93, 034324 (2016)

S.Biswas, R.Palit, A.Navin, M.Rejmund, A.Bisoi, M.S.Sarkar, S.Sarkar, S.Bhattacharyya, D.C.Biswas, M.Caamano, M.P.Carpenter, D.Choudhury, E.Clement, L.S.Danu, O.Delaune, F.Farget, G.de France, S.S.Hota, B.Jacquot, A.Lemasson, S.Mukhopadhyay, V.Nanal, R.G.Pillay, S.Saha, J.Sethi, P.Singh, P.C.Srivastava, S.K.Tandel

Structure of 13252Te80: The two-particle and two-hole spectrum of 13250Sn82

NUCLEAR REACTIONS 232Th(7Li, F)132Te, E=5.4 MeV/nucleon; 9Be(238U, F), E=6.2 MeV/nucleon; measured Eγ, Iγ, γγ-coin, γγ(t), (fragment)γ-, (fragment)γγ-coin, γγ(θ) using INGA array at TIFR-BARC Pelletron LINAC facility for (7Li, F) reaction, and EXOGAM-VAMOS++ system at GANIL for (238U, F) reaction. 132Te; deduced high-spin levels, J, π, multipolarity, configurations, proton and neutron wavefunction amplitudes, p-n correlations at high spin. Comparison with shell-model calculations using jj55pna and modified jj55pna interactions. Systematics of positive-parity level energies in 122,124,126,128,130,132,134,136Te.

NUCLEAR STRUCTURE 132Te; calculated levels, J, π, proton and neutron wavefunction amplitudes, decomposition of the total angular momentum of positive- and negative-parity states using shell model jj55pna and modified jj55pna interactions. Comparison with experimental values. 132Te, 130Sn; 130Te, 128Sn; 128Te, 126Sn; deduced energy differences between the experimental and calculated energy levels of positive-parity as a function of spin, with calculations using shell model.

doi: 10.1103/PhysRevC.93.034324
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2016PR06      Phys.Rev. C 94, 024311 (2016)

D.Pramanik, S.Sarkar, M.S.Sarkar, A.Bisoi, S.Ray, S.Dasgupta, A.Chakraborty, Krishichayan, R.Kshetri, I.Ray, S.Ganguly, M.K.Pradhan, M.R.Basu, R.Raut, G.Ganguly, S.S.Ghugre, A.K.Sinha, S.K.Basu, S.Bhattacharya, A.Mukherjee, P.Banerjee, A.Goswami

Shape coexistence in 153Ho

NUCLEAR REACTIONS 139La(20Ne, 6n), E=139 MeV; measured Eγ, Iγ, delayed Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization), half-life of an isomer by RF-γ(t) using INGA array at VECC cyclotron facility. 153Ho; deduced high-spin levels, J, π, multipolarity, mixing ratio, B(E2), indication of shape coexistence, alignment plots, energy versus angular momentum plots. TRS calculations. Comparison with theoretical calculations using particle-rotor model.

doi: 10.1103/PhysRevC.94.024311
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2016RA33      Phys.Rev. C 94, 044318 (2016)

S.Rajbanshi, S.Ali, A.Bisoi, S.Nag, S.Saha, J.Sethi, T.Bhattacharjee, S.Bhattacharyya, S.Chattopadhyay, G.Gangopadhyay, G.Mukherjee, R.Palit, R.Raut, M.S.Sarkar, A.K.Singh, T.Trivedi, A.Goswami

Shears mechanism and development of collectivity in 141Sm

NUCLEAR REACTIONS 116Cd(31P, 5np), E=148 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ)(DCO), γγ(θ)(ADO), γγ(linear polarization), level half-lives by DSAM using the INGA array at TIFR Pelletron Linac facility. 141Sm; deduced high-spin levels, J, π, multipolarities, mixing ratios, configurations, B(M1), magnetic-dipole rotational (MR) band; calculated contour plots of TRS calculations for two bands. Comparison with principal axis cranking (SPAC) model calculation involving shears mechanism. Systematics of spin versus angular frequency plots for MR bands in 139,141,142Sm, 142Gd, 143Eu.

doi: 10.1103/PhysRevC.94.044318
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2015RA12      Phys.Lett. B 748, 387 (2015)

S.Rajbanshi, S.Roy, S.Nag, A.Bisoi, S.Saha, J.Sethi, T.Bhattacharjee, S.Bhattacharyya, S.Chattopadhyay, G.Gangopadhyay, G.Mukherjee, R.Palit, R.Raut, M.S.Sarkar, A.K.Singh, T.Trivedi, A.Goswami

Antimagnetic rotation and sudden change of electric quadrupole transition strength in 143Eu

NUCLEAR REACTIONS 116Cd(31P, 4n), E=148 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, level scheme, B(E2). Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2015.07.033
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2014BI03      Phys.Rev. C 89, 024303 (2014)

A.Bisoi, M.S.Sarkar, S.Sarkar, S.Ray, D.Pramanik, R.Kshetri, S.Nag, K.Selvakumar, P.Singh, A.Goswami, S.Saha, J.Sethi, T.Trivedi, B.S.Naidu, R.Donthi, V.Nanal, R.Palit

High spin spectroscopy in 34Cl

NUCLEAR REACTIONS 27Al(12C, nα), E=40 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization), level half-lives by DSAM using INGA array at TIFR accelerator facility. 34Cl; deduced high-spin levels, J, π, multipolarity, mixing ratio, B(E2). Comparison with large-basis shell-model calculations.

NUCLEAR STRUCTURE 34Cl; calculated levels, J, π, wave functions, γ-branching ratios, B(M1), B(E2), B(M2) using large-basis shell-model (LBSM) calculations for different truncation schemes. OXBASH computer code. Comparison with experimental data.

doi: 10.1103/PhysRevC.89.024303
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2014BI16      Phys.Rev. C 90, 024328 (2014)

A.Bisoi, M.S.Sarkar, S.Sarkar, S.Ray, D.Pramanik, R.Kshetri, S.Nag, K.Selvakumar, P.Singh, A.Goswami, S.Saha, J.Sethi, T.Trivedi, B.S.Naidu, R.Donthi, V.Nanal, R.Palit

Collective excitations in 33S

NUCLEAR REACTIONS 27Al(12C, npα)33S, E=40 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization), level half-lives by DSAM using INGA array at TIFR Pelletron facility. 33S; deduced levels, J, π, branching ratios, multipolarity, mixing ratio, B(M1), B(E1), B(E2), configurations. Comparison with large-scale shell model calculations.

NUCLEAR STRUCTURE 33S; calculated levels, J, π, configurations, wave functions, B(E1), B(M1), B(E2), alignment plot using large-basis shell model approach. Comparison with experimental data.

doi: 10.1103/PhysRevC.90.024328
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2014RA03      Phys.Rev. C 89, 014315 (2014)

S.Rajbanshi, A.Bisoi, S.Nag, S.Saha, J.Sethi, T.Trivedi, T.Bhattacharjee, S.Bhattacharyya, S.Chattopadhyay, G.Gangopadhyay, G.Mukherjee, R.Palit, R.Raut, M.S.Sarkar, A.K.Singh, A.Goswami

Shape coexistence in the near-spherical 142Sm nucleus

NUCLEAR REACTIONS 116Cd(31P, 4np), E=148 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ)(DCO), γ(θ)(ADO), γγ(linear polarization), level half-lives by DSAM and isomer half-lives by γ(t) using INGA array at TIFR-BARC Pelletron Linac facility. 142Sm; deduced high-spin levels, J, π, multipolarity, bands, magnetic dipole rotational band, B(M1), B(E2), configurations; calculated total energy surfaces contours in β2-γ plane. Comparison with shell model, cranked Nilsson-Strutinsky (CNS), and semiclassical principle axis cranking (SPAC) model calculations.

doi: 10.1103/PhysRevC.89.014315
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2014RA18      Phys.Rev. C 90, 024318 (2014)

S.Rajbanshi, A.Bisoi, S.Nag, S.Saha, J.Sethi, T.Bhattacharjee, S.Bhattacharyya, S.Chattopadhyay, G.Gangopadhyay, G.Mukherjee, R.Palit, R.Raut, M.S.Sarkar, A.K.Singh, T.Trivedi, A.Goswami

Multiple magnetic rotational bands based on proton alignment in 143Eu

NUCLEAR REACTIONS 116Cd(31P, 4n), E=148 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO), γγ(linear polarization), level half-lives by DSAM using INGA array at TIFR Pelletron facility. 143Eu; deduced high-spin levels, J, π, B(M1), multipolarities, magnetic-dipole (shears) rotational bands, configurations. Principal axis cranking model, and TRS calculations.

doi: 10.1103/PhysRevC.90.024318
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2013BI10      Phys.Rev. C 88, 034303 (2013)

A.Bisoi, M.S.Sarkar, S.Sarkar, S.Ray, M.R.Basu, D.Kanjilal, S.Nag, K.Selvakumar, A.Goswami, N.Madhavan, S.Muralithar, R.K.Bhowmik

Superdeformation and α-cluster structure in 35Cl

NUCLEAR REACTIONS 12C(28Si, pα)35Cl, E=110 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), level half-lives by DSAM using INGA array at IUAC, Delhi facility. 35Cl; deduced high-spin levels, J, π, multipolarity, superdeformed band, B(E2), B(E1), configuration, average transition quadrupole moment and deformation parameter for SD band, alignment plot. Comparison with large-scale shell model calculations. Correlation of theoretical spectroscopic factors for SD band members in 35Cl with those of 36Ar.

doi: 10.1103/PhysRevC.88.034303
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2013PR09      Phys.Rev. C 88, 064603 (2013)

M.K.Pradhan, A.Mukherjee, S.Roy, P.Basu, A.Goswami, R.Kshetri, R.Palit, V.V.Parkar, M.Ray, M.S.Sarkar, S.Santra

Importance of the 1n-stripping process in the 6Li + 159Tb reaction

NUCLEAR REACTIONS 159Tb(6Li, 6Li), (6Li, nα), (6Li, 2nα), (6Li, 3nα), (6Li, xnα), (6Li, 5Li), (6Li, 7Li), E=23, 25, 27, 30, 35 MeV; measured Eα, Iα, σ(θ, E) for inclusive α, σ(E) for deuteron-capture and proton stripping incomplete fusion (ICF), neutron pickup and stripping at the BARC-TIFR Pelletron facility. Comparison with CDCC calculations for no-capture breakup (NCBU) using FRESCO computer code. Also DWBA calculations.

doi: 10.1103/PhysRevC.88.064603
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2010SA05      Phys.Rev. C 81, 039803 (2010)

S.Sarkar, M.S.Sarkar

Comment on "High spin structure of the neutron-rich nuclei 137I and 139Cs"

doi: 10.1103/PhysRevC.81.039803
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2010SA14      Phys.Rev. C 81, 064328 (2010)

S.Sarkar, M.S.Sarkar

New shell closure for neutron-rich Sn isotopes

NUCLEAR STRUCTURE 132,134,136,138,140Sn; calculated energies of first 2+ states, effective single-particle energies (ESPE) of the neutron single-particle orbitals, decomposition of the wave functions for 0+ states. 140Sn, 142Te, 144Xe, 146Ba, 148Ce; calculated effective single-particle energies (ESPE) of the proton single-particle orbitals. Shell model calculations with CWG3M interaction by including a three-body monopole term in the CWG interaction. Comparison with energies of first 2+ states in 16,18,20,22,24O, 40,42,44,46,48Ca. Predicted decreasing trend for energies of first 2+ states in 136,138Sn, and a shell closure at 140Sn.

doi: 10.1103/PhysRevC.81.064328
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2008DA12      Phys.Rev. C 78, 021306 (2008)

P.Datta, S.Roy, S.Pal, S.Chattopadhyay, S.Bhattacharya, A.Goswami, M.S.Sarkar, J.A.Sheikh, Y.Sun, P.V.Madhusudhana Rao, R.K.Bhowmik, R.Kumar, N.Madhavan, S.Muralithar, R.P.Singh, H.C.Jain, P.K.Joshi, Amita

Abrupt change of rotation axis in 109Ag

NUCLEAR REACTIONS 100Mo(13C, 3np), E=65 MeV; measured Eγ, Iγ, γγ-coin. 109Ag; deduced levels, J, π, half-lives by DSAM, B(M1), B(E2). Comparisons with projected shell-model and tilted-axis cranking calculations.

doi: 10.1103/PhysRevC.78.021306
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2008RA27      Phys.Rev. C 78, 064617 (2008)

M.Ray, A.Mukherjee, M.K.Pradhan, R.Kshetri, M.S.Sarkar, R.Palit, I.Majumdar, P.K.Joshi, H.C.Jain, B.Dasmahapatra

Fusion cross sections for 6, 7Li + 24Mg reactions at energies below and above the barrier

NUCLEAR REACTIONS 24Mg(6Li, n2p), (6Li, npα), (6Li, pα), (6Li, 2p), (6Li, np), (6Li, 2α), (6Li, nα), (7Li, n2p), (7Li, npα), (7Li, pα), (7Li, 2np), (7Li, np), (7Li, 2α), (7Li, nα), E=6.0-30.0 MeV; measured Eγ, Iγ, σ.

doi: 10.1103/PhysRevC.78.064617
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2008SA32      Phys.Rev. C 78, 024308 (2008); Erratum Phys.Rev. C 78, 029903 (2008)

S.Sarkar, M.S.Sarkar

Structure of even-even A = 138 isobars and the yrast spectra of semi-magic Sn isotopes above the 132Sn core

NUCLEAR STRUCTURE 138Sn, 138Te, 138Xe, 138Ba; calculated binding energies, levels, J, π, B(E2), configuration mixing, magnetic dipole moments, electric quadrupole moments. Large scale untruncated shell model. Comparison with experimental data.

doi: 10.1103/PhysRevC.78.024308
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2007CH74      Phys.Rev. C 76, 044327 (2007)

A.Chakraborty, Krishichayan, S.Mukhopadhyay, S.Ray, S.N.Chintalapudi, S.S.Ghugre, N.S.Pattabiraman, A.K.Sinha, S.Sarkar, U.Garg, S.Zhu, M.S.Sarkar

High-spin structure and band termination in 103Cd

NUCLEAR REACTIONS 72Ge(35Cl, 3np), E=135 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ), multipolarities. 103Cd deduced levels, J, π, angular momentum, bands; calculated shell-model configurations. Gammasphere array.

doi: 10.1103/PhysRevC.76.044327
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2007KS01      Nucl.Phys. A781, 277 (2007)

R.Kshetri, M.S.Sarkar, I.Ray, P.Banerjee, S.Sarkar, R.Raut, A.Goswami, J.M.Chatterjee, S.Chattopadhyay, U.Datta Pramanik, A.Mukherjee, C.C.Dey, S.Bhattacharya, B.Dasmahapatra, S.Bhowal, G.Gangopadhyay, P.Datta, H.C.Jain, R.K.Bhowmik, S.Muralithar R.P.Singh, R.Kumar

High spin structure of 35Cl and the sd-fp shell gap

NUCLEAR REACTIONS 12C(28Si, pα), E=70, 88 MeV; measured Eγ, Iγ, γγ-coin, DSA. 35Cl deduced levels J, π, δ, T1/2. INGA array, shell model calculations.

doi: 10.1016/j.nuclphysa.2006.10.084
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2007RA20      Phys.Rev. C 76, 034315 (2007)

I.Ray, M.R.Basu, R.Kshetri, M.S.Sarkar, S.Sarkar, P.Banerjee, S.Chattopadhyay, C.C.Dey, A.Goswami, J.M.Chatterjee, A.Mukherjee, S.Bhattacharya, B.Dasmahapatra, P.Datta, H.C.Jain, R.K.Bhowmik, S.Muralithar, R.P.Singh

Indication of the onset of collectivity in 30P

NUCLEAR REACTIONS 16O(16O, np), E=40 MeV; measured Eγ, Iγ, γγ-coinc, polarization assymetry. 30P deduced levels, J, π, branching ratios.

doi: 10.1103/PhysRevC.76.034315
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2007RZ01      Phys.Rev. C 75, 054319 (2007)

T.Rzaca-Urban, K.Pagowska, W.Urban, A.Zlomaniec, J.Genevey, J.A.Pinston, G.S.Simpson, M.S.Sarkar, S.Sarkar, H.Faust, A.Scherillo, I.Tsekhanovich, R.Orlandi, J.L.Durell, A.G.Smith, I.Ahmad

First observation of excited states in the 138I nucleus

RADIOACTIVITY 138I [from 248Cm(SF)]; measured prompt and delayed Eγ, Iγ. Deduced level energies, J, π.

doi: 10.1103/PhysRevC.75.054319
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2007RZ03      Eur.Phys.J. A 32, 5 (2007)

T.Rzaca-Urban, W.Urban, M.S.Sarkar, S.Sarkar, J.L.Durell, A.G.Smith, B.J.Varley, I.Ahmad

First observation of medium-spin excitations in the 138Cs nucleus

RADIOACTIVITY 138Cs(IT) [from 248Cm(SF)]; measured Eγ, Iγ, γγ-coinc. 138Cs deduced levels, J, π.

doi: 10.1140/epja/i2007-10362-1
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2006KR07      Eur.Phys.J. A 29, 151 (2006)

Krishichayan, A.Chakraborty, S.Mukhopadhyay, S.Ray, N.S.Pattabiraman, S.S.Ghugre, R.Goswami, A.K.Sinha, S.Sarkar, U.Garg, P.V.Madhusudhana Rao, S.K.Basu, B.K.Yogi, L.Chaturvedi, A.Dhal, R.K.Sinha, M.S.Sarkar, S.Saha, R.Singh, R.K.Bhowmik, A.Jhingan, N.Madhavan, S.Muralithar, S.Nath, R.P.Singh, P.Sugathan

Spin-parity measurements in the neutron-rich N ∼ 20 34P and 36S nuclei

NUCLEAR REACTIONS 115In(34S, X)34P/36S/146Tb/145Gd/146Gd, E=140 MeV; measured Eγ, Iγ, γγ-coin, γ-ray polarization. 34P, 36S deduced levels, J, π, configurations.

doi: 10.1140/epja/i2006-10084-x
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2006KS01      Phys.Rev. C 74, 034314 (2006)

R.Kshetri, M.S.Sarkar, S.Sarkar

Evolution of collectivity in neutron-rich nuclei in the 132Sn region

NUCLEAR STRUCTURE 137,139Te, 137,139I, 139,141Xe, 139Cs, 141Ba; calculated levels, J, π, configurations. Particle rotor model, comparison with data.

doi: 10.1103/PhysRevC.74.034314
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2006MU09      Phys.Lett. B 636, 91 (2006)

A.Mukherjee, S.Roy, M.K.Pradhan, M.S.Sarkar, P.Basu, B.Dasmahapatra, T.Bhattacharya, S.Bhattacharya, S.K.Basu, A.Chatterjee, V.Tripathi, S.Kailas

Influence of projectile α-breakup threshold on complete fusion

NUCLEAR REACTIONS 159Tb(10B, X), (11B, X), E=38-72 MeV; 159Tb(7Li, X), E=28-43 MeV; measured evaporation residue σ, complete and incomplete fusion σ. Comparison with model predictions.

doi: 10.1016/j.physletb.2006.03.051
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2006RA10      Phys.Rev. C 73, 044305 (2006)

R.Raut, S.Ganguly, R.Kshetri, P.Banerjee, S.Bhattacharya, B.Dasmahapatra, A.Mukherjee, G.Mukherjee, M.S.Sarkar, A.Goswami, G.Gangopadhyay, S.Mukhopadhyay, Krishichayan, A.Chakraborty, S.S.Ghugre, T.Bhattacharjee, S.K.Basu

High spin states in 143Sm

NUCLEAR REACTIONS 130Te(20Ne, 7n), E=137 MeV; measured Eγ, Iγ, γγ-coin. 143Sm deduced high-spin levels, J, π. Comparison with model predictions.

doi: 10.1103/PhysRevC.73.044305
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2005CH65      Phys.Rev. C 72, 054309 (2005)

A.Chakraborty, Krishichayan, S.S.Ghugre, R.Goswami, S.Mukhopadhyay, N.S.Pattabiraman, S.Ray, A.K.Sinha, S.Sarkar, P.V.Madhusudhana Rao, U.Garg, S.K.Basu, M.B.Chatterjee, M.S.Sarkar, L.Chaturvedi, A.Dhal, R.K.Sinha, I.M.Govil, R.K.Bhowmik, A.Jhingan, N.Madhavan, S.Muralithar, S.Nath, R.P.Singh, P.Sugathan

Spectroscopy of 90Nb at high spin

NUCLEAR REACTIONS 63Cu(31P, n3p), E=120, 125 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. 90Nb deduced levels, J, π, configurations, isomeric states T1/2, B(E2). Large-basis shell model calculations.

doi: 10.1103/PhysRevC.72.054309
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2005DA16      Phys.Rev. C 71, 041305 (2005)

P.Datta, S.Chattopadhyay, S.Bhattacharya, T.K.Ghosh, A.Goswami, S.Pal, M.S.Sarkar, H.C.Jain, P.K.Joshi, R.K.Bhowmik, R.Kumar, N.Madhavan, S.Muralithar, P.V.Madhusudhana Rao, R.P.Singh

Observation of antimagnetic rotation in 108Cd

NUCLEAR REACTIONS 100Mo(13C, 5n), E=65 MeV; measured Eγ, Iγ, γγ-coin, DSA. 108Cd deduced high-spin levels, J, π, B(E2), antimagnetic rotation. Total Routhian surface calculations.

doi: 10.1103/PhysRevC.71.041305
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2005GA14      Eur.Phys.J. A 24, 173 (2005)

G.Gangopadhyay, S.Bhowal, R.K.Bhowmik, U.Datta Pramanik, P.Ghosh, A.Goswami, C.Petrache, A.Mukherjee, S.Muralithar, R.Raut, M.S.Sarkar, A.K.Singh, R.P.Singh, S.Bhattacharya

Levels in doubly odd 138Pr

NUCLEAR REACTIONS 128Te(14N, 4n), E=55-65 MeV; measured Eγ, Iγ, γγ-coin. 138Pr deduced high-spin levels, J, π, B(M1)/B(E2), configurations. Comparison with particle-rotor model predictions.

doi: 10.1140/epja/i2004-10147-0
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2004CH35      Phys.Rev. C 70, 014311 (2004)

A.Chakraborty, Krishichayan, S.S.Ghugre, R.Goswami, S.Mukhopadhyay, N.S.Pattabiraman, S.Ray, A.K.Sinha, S.Sarkar, P.V.M.Rao, U.Garg, S.K.Basu, L.Chaturvedi, A.Dhal, R.K.Sinha, I.M.Govil, M.B.Chatterjee, M.S.Sarkar, R.K.Bhowmik, A.Jhingan, N.Madhavan, S.Muralithar, S.Nath, R.P.Singh, P.Sugathan

Lifetime measurements of microsecond isomers in the N = 48 nuclei 88Zr and 90Mo using recoil-isomer tagging

NUCLEAR REACTIONS 63Cu(31P, xnyp)90Mo/88Zr, E=120 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. 90Mo, 88Zr deduced isomeric states T1/2, B(E2). Recoil-isomer tagging, comparison with model predictions.

doi: 10.1103/PhysRevC.70.014311
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2004DA14      Phys.Rev. C 69, 044317 (2004)

P.Datta, S.Chattopadhyay, P.Banerjee, S.Bhattacharya, B.Dasmahapatra, T.K.Ghosh, A.Goswami, S.Pal, M.S.Sarkar, S.Sen, H.C.Jain, P.K.Joshi, Amita

Observation of magnetic rotation in odd-odd 104Ag

NUCLEAR REACTIONS 76Ge(35Cl, 3nα), E=132 MeV; measured Eγ, Iγ, γγ-coin, DSA. 104Ag deduced high-spin levels, J, π, configurations, T1/2, B(M1), B(E2), magnetic rotation.

doi: 10.1103/PhysRevC.69.044317
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2004KR14      Phys.Rev. C 70, 044315 (2004)

Krishichayan, A.Chakraborty, S.S.Ghugre, R.Goswami, S.Mukhopadhyay, N.S.Pattabiraman, S.Ray, A.K.Sinha, S.Sarkar, P.V.M.Rao, U.Garg, S.K.Basu, B.K.Yogi, L.Chaturvedi, A.Dhal, R.K.Sinha, M.S.Sarkar, S.Saha, R.Singh, R.K.Bhowmik, A.Jhingan, N.Madhavan, S.Muralithar, S.Nath, R.P.Singh, P.Sugathan

High-spin states in the odd-odd nucleus 146Tb

NUCLEAR REACTIONS 115In(34S, 3n), E=140 MeV; measured Eγ, Iγ, γγ-coin, γ-ray polarization. 146Tb deduced high-spin levels, J, π, configurations.

doi: 10.1103/PhysRevC.70.044315
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2004SA35      Eur.Phys.J. A 21, 61 (2004)

S.Sarkar, M.S.Sarkar

Shell model calculations with modified empirical Hamiltonian in the 132Sn region

NUCLEAR STRUCTURE 134,135,136,137Sn, 134,135,136,137Sb, 134,135,136,137Te, 135,136,137I, 136,137Xe, 137Cs; calculated binding energies. 135Sb, 137I, 136,137Te; calculated levels, J, π. 134Sn, 135Sb, 134,136Te; calculated transitions B(E2). Shell model, modified Hamiltonian, comparison with data.

doi: 10.1140/epja/i2003-10198-7
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2003DA07      Phys.Rev. C 67, 014325 (2003)

P.Datta, S.Chattopadhyay, P.Banerjee, S.Bhattacharya, J.Chatterjee, B.Dasmahapatra, C.C.Dey, T.K.Ghosh, A.Goswami, S.Pal, I.Ray, M.S.Sarkar, S.Sen, H.C.Jain, P.K.Joshi, Amita

Possible coexistence of principal and tilted axis rotation in 103Ag

NUCLEAR REACTIONS 76Ge(35Cl, 4nα), E=135 MeV; measured Eγ, Iγ, γγ-coin. 103Ag deduced high-spin levels, J, π, configurations, B(M1)/B(E2), tilted axis rotation. Comparison with model predictions, neighboring isotopes.

doi: 10.1103/PhysRevC.67.014325
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2003RA52      Phys.Rev. C 68, 067601 (2003)

M.Ray, A.Mukherjee, M.S.Sarkar, A.Goswami, S.Roy, S.Saha, R.Bhattacharya, B.R.Behera, S.K.Datta, B.Dasmahapatra

Fusion cross sections for 7Li + 16O at energies above barrier

NUCLEAR REACTIONS 16O(7Li, X), E=18-34 MeV; measured fusion σ. Comparison with previous results, model predictions.

doi: 10.1103/PhysRevC.68.067601
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2001CH90      Pramana 57, 165 (2001)

J.M.Chatterjee, M.S.Sarkar, S.Bhattacharya, P.Banerjee, S.Sarkar, R.P.Singh, S.Murulithar, R.K.Bhowmik

Level Structures of 95, 97Mo - A Comparative Study

NUCLEAR REACTIONS 82Se(18O, 3n), (18O, 5n), E=60 MeV; measured Eγ, Iγ, γγ-coin. 95,97Mo deduced levels, J, π.

doi: 10.1007/s12043-001-0168-8
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2001SA28      Phys.Rev. C64, 014312 (2001)

S.Sarkar, M.S.Sarkar

Shell Model Study of Neutron-Rich Nuclei Near 132Sn

NUCLEAR STRUCTURE 133,134Sn, 133,134,135Sb, 134,135,136,137Te, 135,136I, 136,137Xe, 137Cs; calculated levels, J, π. 134Te, 136,137Xe, 137Cs; calculated μ. 134Te, 135I, 136,137Xe, 136I, 135Te, 134Sn, 135Sb; calculated transitions B(E2). 134Te; calculated transitions B(E3). Shell model, comparisons with data.

doi: 10.1103/PhysRevC.64.014312
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1999MU01      Nucl.Phys. A645, 13 (1999)

A.Mukherjee, U.D.Pramanik, S.Chattopadhyay, M.S.Sarkar, A.Goswami, P.Basu, S.Bhattacharya, M.L.Chatterjee, B.Dasmahapatra

Investigation of 6Li + 16O and 7Li + 16O Reactions at Low Energies

NUCLEAR REACTIONS 16O(6Li, X), E(cm)=3.62-8.75 MeV; 16O(7Li, X), E(cm)=4.84-8.34 MeV; measured Eγ, Iγ; deduced partial, total fusion σ. Statistical model calculations, optical model, incoming wave boundary condition and one-dimensional barrier penetration model calculations.

doi: 10.1016/S0375-9474(98)00568-5
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1999SA55      Phys.Rev. C60, 064309 (1999)

M.S.Sarkar

Particle-Rotor Model Calculations of Superdeformed Bands in A = 150 and 190 Regions

NUCLEAR STRUCTURE 193,195Tl, 191,193,195Hg, 153,155Dy, 151Tb, 147Gd; calculated superdeformed bands transition energies, moments of inertia, related features. Particle-rotor model, comparisons with data.

doi: 10.1103/PhysRevC.60.064309
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1999SA61      Pramana 53, 431 (1999)

M.S.Sarkar

Structure of Neutron-Rich Nuclei Around A ≈ 100

NUCLEAR STRUCTURE 96,98,100,102,104,106,108,110,112Mo; calculated total energy surfaces. Comparison of cranked HFB, cranked Nilsson-Strutinsky approaches.

doi: 10.1007/s12043-999-0010-2
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1998MU12      Nucl.Phys. A635, 305 (1998); Erratum Nucl.Phys. A640, 509 (1998)

A.Mukherjee, U.D.Pramanik, S.Chattopadhyay, M.S.Sarkar, A.Goswami, P.Basu, S.Bhattacharya, M.L.Chatterjee, B.Dasmahapatra

Fusion Cross Sections for 6Li + 12C and 6Li + 13C Reactions at Low Energies

NUCLEAR REACTIONS 12C(6Li, X), E(cm)=2.01-8.02 MeV; 13C(6Li, X), E(cm)=2.07-8.23 MeV; measured Eγ, Iγ; deduced partial, total fusion σ. Statistical model analysis, Optical model, Incoming Wave Boundary Condition model and one-dimensional Barrier Penetration model calculations.

doi: 10.1016/S0375-9474(98)00164-X
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1998PR04      Nucl.Phys. A632, 307 (1998)

U.D.Pramanik, A.Mukherjee, A.K.Singh, S.Chattopadhyay, G.Gangopadhyay, A.Goswami, M.S.Sarkar, R.K.Bhowmik, R.P.Singh, S.Muralithar, B.Dasmahapatra, S.Sen, S.Bhattacharya

Rotational Bands in the Doubly Odd 138Pm

NUCLEAR REACTIONS 115In(28Si, 3n2p), E=145 MeV; measured Eγ, Iγ, γγ-coin, DCO ratios. 138Pm deduced high-spin levels, J, π, B(M1)/B(E2).

doi: 10.1016/S0375-9474(97)00816-6
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1998PR05      Nucl.Phys. A637, 327 (1998)

U.D.Pramanik, A.Mukherjee, P.Basu, S.Chattopadhyay, A.Goswami, M.S.Sarkar, B.Dasmahapatra, M.L.Chatterjee, S.Sen, S.Bhattacharya

Oblate Bands in Doubly Odd 134La

NUCLEAR REACTIONS 133Cs(α, 3n), E=40 MeV; measured Eγ, Iγ(θ), γγ-coin, DCO ratios. 134La deduced high-spin levels, J, π, B(M1)/B(E2), δ.

doi: 10.1016/S0375-9474(98)00224-3
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1998SA25      J.Phys.(London) G24, 1277 (1998)

M.S.Sarkar, A.Goswami, S.Bhattacharya, B.Dasmahapatra, P.Bhattacharya, P.Basu, M.L.Chatterjee, S.Sen

Nuclear Structure of 124Xe

NUCLEAR REACTIONS 123Te(α, 3n), E=40 MeV; measured Eγ, Iγ(θ), γγ-coin. 124Xe deduced high-spin levels, J, π, δ.

NUCLEAR STRUCTURE 124Xe; calculated quasiparticle levels, splitting vs triaxial deformation. Cranked shell model.

doi: 10.1088/0954-3899/24/7/009
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1997SA09      J.Phys.(London) G23, 169 (1997)

M.S.Sarkar, A.Goswami, S.Bhattacharya, B.Dasmahapatra, P.Bhattacharya, P.Basu, M.L.Chatterjee, S.Sen

Shape of the 123Xe Nucleus

NUCLEAR REACTIONS 122Te(α, 3n), E=40 MeV; measured Eγ, Iγ, γγ-coin, γ(θ). 123Xe deduced high-spin levels, γ-multipolarity, δ, branching ratio, B(λ). Symmetric rotor-particle model.

doi: 10.1088/0954-3899/23/2/005
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1997SA61      Phys.Rev. C56, 3140 (1997)

M.S.Sarkar, S.Sen

Cranked Hartree-Fock-Bogoliubov Calculations in the Xe-Ba Region

NUCLEAR STRUCTURE 120,122Te, 122,124,126,128,130,132Xe, 130,132,134,142,144,146Ba, 132,134,146,148Ce; calculated low-lying states deformation, pairing gap. Cranked Hartree-Fock-Bogoliubov calculations, several parameter sets compared.

doi: 10.1103/PhysRevC.56.3140
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1996MU01      Nucl.Phys. A596, 299 (1996)

A.Mukherjee, U.D.Pramanik, M.S.Sarkar, A.Goswami, P.Basu, S.Bhattacharya, S.Sen, M.L.Chatterjee, B.Dasmahapatra

7Li + 12C and 7Li + 13C Fusion Reactions at Subbarrier Energies

NUCLEAR REACTIONS 12C(7Li, X), E(cm)=2.14-6.32 MeV; 13C(7Li, X), E(cm)=1.47-7.77 MeV; measured σ(E, Eγ) for transitions in 11,12B, 14,15N, 16,17,18O, 18,19F; deduced partial, total fusion σ. Statistical model analysis. High purity Ge-detector, heavy-ion surface barrier detector, enriched targets.

doi: 10.1016/0375-9474(95)00392-4
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1995GO28      Z.Phys. A352, 391 (1995)

R.Goswami, B.Sethi, M.S.Sarkar, S.Sen

Band Structures of 121,123I

NUCLEAR STRUCTURE 121,123I; calculated levels. Particle-rotor model.

doi: 10.1007/BF01299756
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1995GO29      Z.Phys. A353, 231 (1995)

A.Goswami, M.S.Sarkar, U.D.Pramanik, P.Banerjee, P.Basu, P.Bhattacharya, S.Bhattacharya, M.L.Chatterjee, S.Sen, B.Dasmahapatra

Band Structure in 104Ag

NUCLEAR REACTIONS 103Rh(α, 3n), E=40, 45 MeV; measured γγ-coin. 104Ag deduced high-spin levels, J, π, band structure. Two quasiparticle-plus-rotor model.

doi: 10.1007/BF01292323
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1994SA40      Phys.Rev. C50, 2794 (1994)

M.S.Sarkar, S.Sen

Simple Phenomenology for the Ground-State Bands of Even-Even Nuclei

NUCLEAR STRUCTURE A=70-224; analyzed level energy, energy ratio data; deduced pairing, np-interaction energy dependences role in correlation systematics. Phenomenological approach.

doi: 10.1103/PhysRevC.50.2794
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