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NSR database version of May 24, 2024.

Search: Author = S.Modi

Found 11 matches.

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2022SI09      Phys.Rev. C 105, L031302 (2022)

P.Siwach, P.Arumugam, S.Modi, L.S.Ferreira, E.Maglione

Fine structure in the odd-odd proton emitter 144Tm

RADIOACTIVITY 144Tm(p); calculated T1/2, branching ratios. 144Tm; calculated J, π of the ground state, configuration. 143Er; J, π, levels. Nonadiabatic quasiparticle approach. Proposed triaxial deformation for the ground state of 144Tm. Comparison to available experimental data.

doi: 10.1103/PhysRevC.105.L031302
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2022SI26      Phys.Rev. C 106, 044322 (2022)

P.Siwach, P.Arumugam, S.Modi, L.S.Ferreira, E.Maglione

Effects of triaxiality and residual $np$ interaction in the proton emission from 140Ho

RADIOACTIVITY 140Ho(p); calculated T1/2, branching ratios to excited states in 139Dy. 139Dy, 140Ho; calculated levels, J, π, neutron single-particle energy levels, rotational energies, contributions of various single-particle configurations to rotational states. Calculations within nonadiabatic quasiparticle approach considering the role of residual neutron-proton interaction and triaxiality. Comparison to experimental data.

doi: 10.1103/PhysRevC.106.044322
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2021SI10      Phys.Rev. C 103, L031303 (2021)

P.Siwach, P.Arumugam, S.Modi, L.S.Ferreira, E.Maglione

Interpretation of 108I as an odd-odd γ-deformed proton emitter

NUCLEAR STRUCTURE 107Te, 107I; calculated Single-particle and quasiparticle levels for neutrons in 107Te and for protons in 107I, rotational energies, J, π of 107Te. 108I; calculated rotational energies, J, π, configurations, proton emission half-life as function of γ and β2 deformation parameters, contribution of single-particle configurations with and without np interaction. 108I; deduced g.s. Jπ from GM splitting and Newby shift. Comparison with experimental proton emission half-life of 108I. Nonadiabatic quasiparticle microscopic approach to interpret the data for triaxial odd-odd proton emitters.

doi: 10.1103/PhysRevC.103.L031303
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2020CH11      Eur.Phys.J. A 56, 50 (2020)

S.Chakraborty, H.P.Sharma, S.S.Tiwary, C.Majumder, P.Banerjee, S.Ganguly, S.Rai, P.Popli, S.Modi, P.Arumugam, M.Singh, S.Kumar, A.Kumar, S.S.Bhattacharjee, R.P.Singh, S.Muralithar, R.Palit

Signature splitting in the positive parity bands of 127Xe

doi: 10.1140/epja/s10050-020-00066-3
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2020SI25      J.Phys.(London) G46, 125105 (2020)

P.Siwach, P.Arumugam, S.Modi, L.S.Ferreira, E.Maglione

Nonadiabatic quasiparticle description of rotation-particle coupling in triaxial odd-odd nuclei

NUCLEAR STRUCTURE 138Pm, 180Ta; calculated single-particle and quasiparticle energies, bands, staggering, J, π.

doi: 10.1088/1361-6471/abb6c2
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2020TI04      Phys.Scr. 95, 095304 (2020)

S.S.Tiwary, H.P.Sharma, S.Chakraborty, C.Majumder, A.K.Gupta, S.Modi, P.Arumugam, P.Banerjee, S.Ganguly, K.Rojeeta Devi, Neelam, S.Kumar, S.K.Chamoli, A.Sharma, V.V.Jyothi, Mayank, A.Kumar, S.S.Bhattacharjee, I.Bala, S.Muralithar, R.P.Singh

Structure of positive parity states in 139Pm

NUCLEAR REACTIONS 127I(16O, 4n)139Pm, E=84 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, J, π, partial level scheme, bands. Comparison with systematics, particle rotor model calculations.

doi: 10.1088/1402-4896/abaea8
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2018CH24      Phys.Rev. C 97, 054311 (2018); Erratum Phys.Rev. C 98, 059902 (2018)

S.Chakraborty, H.P.Sharma, S.S.Tiwary, C.Majumder, P.Banerjee, S.Ganguly, S.Rai, Pragati, S.Modi, P.Arumugam, Mayank, S.Kumar, R.Palit, A.Kumar, S.S.Bhattacharjee, R.P.Singh, S.Muralithar

Rotational band on a three-quasineutron isomer in 127Xe

NUCLEAR REACTIONS 122Sn(9Be, 4n), E=48 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization), and half-lives of isomers by γγ(t) using INGA array at 15UD pelletron accelerator of IUAC-New Delhi. 127Xe; deduced high-spin levels, J, π, bands, multipolarities, configurations, alignment plots, 3-qp states, reduced K-hindrance factors for γ transitions from 3-qp states in 127Xe and 129Ba. Comparison with modified particle rotor model (MPRM) calculations.

doi: 10.1103/PhysRevC.97.054311
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2017MO08      Phys.Rev. C 95, 024326 (2017)

S.Modi, M.Patial, P.Arumugam, E.Maglione, L.S.Ferreira

Nonadiabatic quasiparticle approach for rotation-particle coupling in triaxial odd-A nuclei

NUCLEAR STRUCTURE 132,134Ba, 134,136Ce, 136,138Nd, 136,138Sm, 140,142Gd; analyzed parameters of the Variable moment of inertia (VMI) model from fitting of the experimental levels for ground and γ band using four different methods, including triaxial deformation. 136Nd, 137Pm; calculated levels, J, π, bands using the parameters from VMI model analysis, and considering β2 and γ deformation. Comparison with experimental data.

doi: 10.1103/PhysRevC.95.024326
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2017MO17      Phys.Rev. C 95, 054323 (2017)

S.Modi, M.Patial, P.Arumugam, E.Maglione, L.S.Ferreira

Triaxiality in the proton emitter 109I

NUCLEAR STRUCTURE 108Te; calculated levels, J, π with different triaxial deformations and compared with experimental data. 109I; calculated single-particle and quasiparticle energies as function deformation parameters β2 and γ, negative- and positive-parity bands as functions of deformation parameters β2, β4 and γ, yrast states, probability density of different single-particle angular momentum states. Nonadiabatic quasiparticle approach with the inclusion of triaxial degree of freedom.

RADIOACTIVITY 109I(p); calculated half-life of proton emission from the yrast states of 109I as function of β2 and γ, and compared to the experimental value.

doi: 10.1103/PhysRevC.95.054323
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2017MO22      Phys.Scr. 92, 094002 (2017)

S.Modi, M.Patial, P.Arumugam, E.Maglione, L.S.Ferreira

Modified particle-rotor model and low-lying rotational bands in odd-A triaxial nuclei

doi: 10.1088/1402-4896/aa81ec
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2017MO42      Phys.Rev. C 96, 064308 (2017)

S.Modi, M.Patial, P.Arumugam, L.S.Ferreira, E.Maglione

Decay of 147Tm and the role of triaxiality studied with a nonadiabatic quasiparticle approach

NUCLEAR STRUCTURE 140,142,144Dy, 141Ho, 145,147Tm; calculated levels, J, π, rotational bands, single-particle and quasiparticle energies in 147Tm using modified particle-rotor model, with the microscopic nonadiabatic quasiparticle approach. Comparison with experimental data.

RADIOACTIVITY 147,147mTm(p); calculated half-lives; deduced Jπ of g.s. and isomer of 147Tm. Comparison with experimental values.

doi: 10.1103/PhysRevC.96.064308
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