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NSR database version of May 21, 2024.

Search: Author = S.S.Alam

Found 9 matches.

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2024KU05      Phys.Rev. C 109, 024304 (2024)

D.Kumar, A.Pal, S.Basak, T.Bhattacharjee, S.S.Alam, L.Gerhard, L.Knafla, A.Esmaylzadeh, M.Ley, F.Dunkel, K.Schomaker, J.-M.Regis, J.Jolie, Y.H.Kim, U.Koster

Lifetime measurement for the 15/2-1 and 13/2-1 levels in 129Sn

doi: 10.1103/PhysRevC.109.024304
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2022KU31      Phys.Rev. C 106, 034306 (2022)

D.Kumar, T.Bhattacharjee, S.S.Alam, S.Basak, L.Gerhard, L.Knafla, A.Esmaylzadeh, M.Ley, F.Dunkel, K.Schomaker, J.-M.Regis, J.Jolie, Y.H.Kim, U.Koster, G.S.Simpson, L.M.Fraile

Lifetimes and transition probabilities for low-lying yrast levels in 130, 132Te

RADIOACTIVITY 130,132Sb(β-); 130m,132mTe(IT) [from 233U(n, γ), E=thermal, followed by mass-separation of fission fragments by the Lohengrin separator at Institut Laue-Langevin, Grenoble]; measured Eγ, Iγ, γγ-coin, isomer and level T1/2 by γ(t) and γγ(t) fast-timing method using four LaBr3(Ce) detectors and two Clover HPGe detectors, and analyzed using generalized centroid difference (GCD) method, and by slope method. 130,132Te; deduced levels, T1/2 of levels and isomers, B(E2) for yrast members of the g.s. bands up to 10+, configurations. Comparison with large-basis shell model calculations, and with previous experimental results. Systematics of B(E2) values for g.s. band members up to 10+ for 126,128,130,132,134Te.

doi: 10.1103/PhysRevC.106.034306
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2021BA35      Phys.Rev. C 104, 024320 (2021)

S.Basak, S.S.Alam, D.Kumar, A.Saha, T.Bhattacharjee

Shape coexistence scenario in 150Sm from a γ-γ fast-timing measurement

RADIOACTIVITY 150Pm(β-)[from 150Nd(p, n), E=8.0 MeV at VECC-Kolkata]; measured Eγ, Iγ, γγ-coin, level half-lives by γγ(t) using an array of six Compton-suppressed Clover HPGe detectors and VENTURE array of eight CeBr3 detectors. 150Sm; deduced levels, J, π, B(E2), ρ2(E0), shape coexistence and shape mixing. Comparison with IBM and DPPQ calculations. Systematics of B(E2) and ρ2(E0) values for 150,152Sm, 156,158Gd.

doi: 10.1103/PhysRevC.104.024320
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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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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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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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2018BH06      Phys.Rev. C 98, 044311 (2018)

S.Bhattacharya, S.Bhattacharyya, R.Banik, S.Das Gupta, G.Mukherjee, A.Dhal, S.S.Alam, Md.A.Asgar, T.Roy, A.Saha, S.Nandi, T.Bhattacharjee, A.Choudhury, D.Mondal, S.Mukhopadhyay, P.Mukhopadhyay, S.Pal, D.Pandit, I.Shaik, S.R.Banerjee

Yrast and non-yrast spectroscopy of 199Tl using α-induced reactions

NUCLEAR REACTIONS 197Au(α, 2n), E=30 MeV; measured Eγ, Iγ, γγ-coin, and γγ(θ)(DCO), and γγ(lin pol)(IPDCO) using VENUS array of HPGe detectors at VECC-Kolkata cyclotron facility. 199Tl; deduced high-spin levels, J, π, bands, multipolarities, alignment and staggering plots, and configurations; calculated total Routhian surface (TRS) contours in (β2, γ) plane. Systematics of band structures in 193,195,197,199,201Tl.

doi: 10.1103/PhysRevC.98.044311
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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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2017AL45      Nucl.Instrum.Methods Phys.Res. A874, 103 (2017)

S.S.Alam, T.Bhattacharjee, D.Banerjee, A.Saha, D.Pandit, D.Mondal, S.Mukhopadhyay, S.Pal, P.Bhaskar, S.K.Das, S.R.Banerjee

VECC array for Nuclear fast Timing and angUlar corRElation studies (VENTURE)

RADIOACTIVITY 132Te(β-) [ from 238U(α, F), E not given]; measured decay products, Eγ, Iγ; deduced γ-ray energies, angular correlations.

RADIOACTIVITY 60Ni, 106Pd, 133Cs(IT); measured decay products, Eγ, Iγ; deduced γ-ray energies, level T1/2. Comparison with a Monte Carlo simulation with GEANT3 package.

doi: 10.1016/j.nima.2017.08.037
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