NSR Query Results

Output year order : Descending
Format : Normal

NSR database version of April 25, 2024.

Search: Author = J.B.Gupta

Found 83 matches.

Back to query form

2024GU01      Nucl.Phys. A1041, 122765 (2024)

J.B.Gupta, V.Katoch, S.Sharma

Novel features of nuclear spectra of light mass Os isotopes

NUCLEAR STRUCTURE ^{172,174,176,178,180,182,184}Os; calculated energy levels, J, π, B(E2), bands using the collective rotation vibration model and the algebraic sd Interacting Boson Model IBM-1.

doi: 10.1016/j.nuclphysa.2023.122765
Citations: PlumX Metrics

2023GU06      Phys.Rev. C 107, 034315 (2023)

J.B.Gupta

Spectral features of vibrational Te isotopes

NUCLEAR STRUCTURE ^{118,120,122,124}Te; calculated levels, J, π, B(E2), quadrupole moments. ¹²⁰Te; calculated potential energy surface. ^{118,120,122,124,126,128,130}Te; analyzed energies, ground state bands structure, B(E2), phonon triplet and quintiplet energy spectrum; deduced anharmonicity, shape phase transition. Calculations with interacting boson model (IBM-1) and dynamic pairing plus quadrupole (DPPQ) model. Comparison to experimental data.

doi: 10.1103/PhysRevC.107.034315
Citations: PlumX Metrics

2023GU10      Int.J.Mod.Phys. E32, 2350013 (2023)

J.B.Gupta, V.Katoch

New perspective of the role of the triaxiality parameter γ for γ-g B(E2)s

NUCLEAR STRUCTURE ^{96,98,100,102,104,106,108,110,112,114,116,118}Ru, ^{122,124,126,128,130}Ba, ^{176,178,180,182,184,186,188,190,192}Os; calculated B(E2), triaxiality parameters using the triaxial model (or Davydov-Filippov model). Comparison with available data.

doi: 10.1142/S0218301323500131
Citations: PlumX Metrics

2023GU11      1037, 122699 (2023)

J.B.Gupta, V.Katoch

Special features of nuclear structure of ^128-132Xe

NUCLEAR STRUCTURE ^128,130,132Xe; calculated energy levels, J, π, energy ratio, B(E2); deduced special characteristics of the critical point E(5) symmetry.

doi: 10.1016/j.nuclphysa.2023.122699
Citations: PlumX Metrics

2022GU08      Phys.Rev. C 105, 064312 (2022)

J.B.Gupta, J.H.Hamilton

Analysis of the SU(3) symmetry versus rotor model

NUCLEAR STRUCTURE ^{154,156,158,160}Gd; analyzed energies, B(E2), and electric quadrupole moments of the first 2+, 2+ members of the β and γ bands, and the first excited 0+ state from the IBM-1 and DPPQ model Hamiltonian parameters, and the experimental data by introducing pairing term to IBM-SU(3); deduced validity of the I(I+1) energy formula for ground band of Gd isotopes; discussed correspondence between SU(3) subgroup in interacting boson model (IBM), and Bohr-Mottelson rotor model for axially symmetric deformed nuclei, the importance of adding pairing term in IBM-SU(3), and the role of triaxiality. ^152,160Dy, ^154,162Gd, ^156,164Dy; discussed softness parameter for the excited 0+ states.

doi: 10.1103/PhysRevC.105.064312
Citations: PlumX Metrics

2022GU18      Nucl.Phys. A1028, 122527 (2022)

J.B.Gupta, J.H.Hamilton

Novel features of nuclear structure of Z = 46 Pd isotopes

NUCLEAR STRUCTURE ^{100,102,104,106,108,110,112,114,116}Pd; calculated energy levels, B(E2), Nilsson single particle orbits using the PHINT package for sd IBM-1. Comparison with available data.

doi: 10.1016/j.nuclphysa.2022.122527
Citations: PlumX Metrics

2022GU24      Int.J.Mod.Phys. E31, 2250089 (2022)

J.B.Gupta, V.Katoch

Vibrational anharmonicity in near closed shell isotopes

NUCLEAR STRUCTURE ^{102,104,106,108,110,112,114,116,118,120,122,124,126}Cd, ^{106,108,110,112,114,116,118,120,122,124,126,128}Te; analyzed available data; deduced energy levels, J, π, B(E2), anharmonicity, split of the degeneracy of the phonon triplet and quintuplet. The interacting boson model (IBM).

doi: 10.1142/S0218301322500896
Citations: PlumX Metrics

2021GU09      Int.J.Mod.Phys. E30, 2150015 (2021)

J.B.Gupta, V.Katoch

Grodzins relation for 4⁺₁ and 6⁺₁ states in A = 80, 100 and 130 region

NUCLEAR STRUCTURE ^{106,108,110,112,114,116}Cd, ^{102,104,106,108,110}Pd, ^{96,98,100,102,104,106,108,110}Ru, ⁸⁸Mo, ^{92,94,96,98,100,102,104,106}Mo, ^82,84,86Zr, ^{78,80,82,84,86}Sr, ^{74,76,78,80,82,84}Kr, ^{70,72,74,76,78,80}Se, ^{66,68,70,72,74,76}Ge, ^{66,68,70,72,74}Zn; analyzed available data; deduced possibility of extension of the Grodzins rule to higher spins in the groundbands of even Z, even N nuclei.

doi: 10.1142/S0218301321500154
Citations: PlumX Metrics

2021GU10      Eur.Phys.J. A 57, 97 (2021)

J.B.Gupta, J.H.Hamilton

Spectral features of nuclear structure of ^114-122Xe

NUCLEAR STRUCTURE ^{114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132}Xe; analyzed available data; deduced systematics of J, π.

doi: 10.1140/epja/s10050-021-00409-8
Citations: PlumX Metrics

2021GU27      Phys.Rev. C 104, 054325 (2021)

J.B.Gupta, J.H.Hamilton

Nuclear structure of ¹²⁶Xe

NUCLEAR STRUCTURE ¹²⁶Xe; calculated positive-parity levels, J, B(E2) using microscopic theory of dynamic pairing plus quadrupole (DPPQ) model, and the interacting boson model (IBM-1); deduced validity of the O(6)-O(5) symmetry. Comparison with experimental data, and with predictions of O(6) limiting symmetry.

doi: 10.1103/PhysRevC.104.054325
Citations: PlumX Metrics

2021GU30      Int.J.Mod.Phys. E30, 2150096 (2021)

J.B.Gupta, V.Katoch

Problem of energy scale in rigid triaxial rotor model

NUCLEAR STRUCTURE ¹²⁰Xe; analyzed available data; deduced corrections to the rigid triaxial rotor (RTR) approximation of Davydov and Filippov (DF) model.

doi: 10.1142/S0218301321500968
Citations: PlumX Metrics

2020GU01      Eur.Phys.J. A 56, 14 (2020)

J.B.Gupta, J.H.Hamilton

New perspective of the nuclear structure of ⁹⁶Ru-¹¹⁴Ru isotopes

doi: 10.1140/epja/s10050-019-00015-9
Citations: PlumX Metrics

2020GU15      Int.J.Mod.Phys. E29, 2050037 (2020)

J.B.Gupta

Role of triaxiality parameter γ in deformed nuclei

NUCLEAR STRUCTURE Sm, Gd, Dy; calculated B(E2) values and ratios.

doi: 10.1142/S0218301320500378
Citations: PlumX Metrics

2020GU23      Int.J.Mod.Phys. E29, 2030008 (2020)

J.B.Gupta, J.H.Hamilton

Shape phase changes with N in ^72-84Kr isotopes

NUCLEAR STRUCTURE ^{72,74,76,78,80,82,84}Kr; analyzed available data; deduced energy levels, J, π, shape coexistence, large deformations, B(E2).

doi: 10.1142/S0218301320300088
Citations: PlumX Metrics

2019GU05      Nucl.Phys. A983, 20 (2019)

J.B.Gupta, J.H.Hamilton

Empirical study of the shape evolution and shape coexistence in Zn, Ge and Se isotopes

NUCLEAR STRUCTURE ^{60,62,64,66,68,70,72,74,76,78}Zn, ^{64,66,68,70,72,74,76,78,80}Ge, ^{64,66,68,70,72,74,76,78,80}Se; analyzed energies of energies E(2⁺₁) and of B(E2, 0⁺₁ to 2⁺₁) using experimental data and the power index formula by Gupta linear plot of B(E2) vs [1/E(2⁺₁)] mainly for Z=30-34.

doi: 10.1016/j.nuclphysa.2018.12.009
Citations: PlumX Metrics

2019GU21      Nucl.Phys. A990, 162 (2019)

J.B.Gupta

The nature of K^π = 0⁺₂, 0⁺₃ bands in ¹⁵⁸Gd

doi: 10.1016/j.nuclphysa.2019.07.005
Citations: PlumX Metrics

2019GU22      Eur.Phys.J. A 55, 122 (2019)

J.B.Gupta

Global view of the rotational structure of the K^π = 2⁺ γ-bands

doi: 10.1140/epja/i2019-12794-2
Citations: PlumX Metrics

2019GU24      Int.J.Mod.Phys. E28, 1950055 (2019)

J.B.Gupta, V.Katoch

Generalized grodzins relation for ground band

NUCLEAR STRUCTURE ¹⁵⁴Sm, ^154,156,158Gd, ¹⁵⁶Dy; analyzed available data; deduced Grodzins rule.

doi: 10.1142/S0218301319500551
Citations: PlumX Metrics

2018GU03      Int.J.Mod.Phys. E27, 1850033 (2018)

J.B.Gupta, V.Katoch

New perspective of Grodzins E x B (E2)↑ product rule

NUCLEAR STRUCTURE Z>54; analyzed available data; deduced validity of Grodzins systematics.

doi: 10.1142/S0218301318500337
Citations: PlumX Metrics

2018GU04      Int.J.Mod.Phys. E27, 1850044 (2018)

J.B.Gupta

Novel solution of power law for γ-bands

NUCLEAR STRUCTURE ¹⁵⁶Gd, ¹⁶²Er, ¹¹⁸Xe; calculated energy levels, J, π, β and γ bands. Comparison with available data.

doi: 10.1142/S0218301318500441
Citations: PlumX Metrics

2018GU12      Nucl.Phys. A978, 25 (2018)

J.B.Gupta

Analysis of the anomalies of the constancy of Grodzins E x B(E2) product rule

NUCLEAR STRUCTURE Xe, Ba, Ce, Nd, Sm, Gd; calculated B(E2) between 0⁺₁ and 2⁺₁ vs Grodzins product (N_pN_nR/4) and vs Eγ (typically 3 or 4isotopes per element, 7 isotopes for Gd), rotational moment of inertia vs neutron and vs proton number. Ba, Ce, Nd, Sm, Gd, Dy, Er, Yb, Hf, W, Os, Pt; calculated rotational moment of inertia vs neutron number (for Nd, Sm, Gd, Dy) and Grodzins product E(2⁺₁)B(E2) vs proton number, product of neutron and proton numbers or 1/E(2⁺₁).

doi: 10.1016/j.nuclphysa.2018.07.016
Citations: PlumX Metrics

2018GU22      Int.J.Mod.Phys. E27, 1850100 (2018)

J.B.Gupta, V.Katoch

Study of Grodzins relation of B(E2) with E(2⁺₁) in A = 130, 100 and 80 regions

NUCLEAR STRUCTURE N=52-80; analyzed available data; deduced the Grodzins product evolution.

doi: 10.1142/S0218301318501008
Citations: PlumX Metrics

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
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2017GU13      Phys.Rev. C 95, 054303 (2017)

J.B.Gupta, J.H.Hamilton

Reexamining the nuclear structure of ¹⁵⁴Gd in the dynamic pairing plus quadrupole model

NUCLEAR STRUCTURE ¹⁵⁴Gd; analyzed experimental data for levels, J, π, eight K-bands, B(E2), B(E2) ratios using dynamic pairing plus quadrupole model (DPPQM). Comparison with predictions of X(5) symmetry and interacting boson model. Discussed 2n-transfer reactions, and the validity of the multiphonon view.

doi: 10.1103/PhysRevC.95.054303
Citations: PlumX Metrics

2017GU25      Phys.Rev. C 96, 034321 (2017)

J.B.Gupta, J.H.Hamilton

Outstanding problems in the band structures of ¹⁵²Sm

NUCLEAR STRUCTURE ¹⁵²Sm; analyzed spectroscopic data for levels, J, π, bands, B(E2), odd-even staggering, and shape coexistence with predictions of microscopic dynamic pairing plus quadrupole (DPPQ) model of Kumar and Baranger.

doi: 10.1103/PhysRevC.96.034321
Citations: PlumX Metrics

2016GU18      Int.J.Mod.Phys. E25, 1650076 (2016)

J.B.Gupta

Phase transition at N=92 in ¹⁵⁸Dy

NUCLEAR STRUCTURE ¹⁵⁸Dy; analyzed available data; deduced energy levels, J, π, bands, B(E2). The dynamic pairing plus quadrupole (DPPQ) model calculations.

doi: 10.1142/S0218301316500762
Citations: PlumX Metrics

2015GU05      Eur.Phys.J. A 51, 47 (2015)

J.B.Gupta

Nuclear structure of ^122-134Ba in IBM-1

NUCLEAR STRUCTURE ^{122,124,126,128,130,132,134}Ba; calculated energy ratio E(J₁)/E(2₁) vs spin J, partial level energy spectrum, quadrupole moment, B(E2), shape phase transition using IBM-1 and DPPQ (dynamic pairing plus quadrupole) model.

doi: 10.1140/epja/i2015-15047-6
Citations: PlumX Metrics

2015GU06      Phys.Rev. C 91, 054312 (2015)

J.B.Gupta, M.Saxena

Shape phase transition at N=88-90 in ^{144, 146}Ba

NUCLEAR STRUCTURE ^144,146Ba; calculated levels, J, π, B(E2). Interacting boson models (IBM-1) and IBM-2. Comparison with results of dynamic pairing plus quadrupole model (DPPQ), and with experimental results. Systematics of first 2+ states in ^144,146Ba, ^146,148Ce, ^148,150Nd, ^150,152Sm, ^152,154Gd, ^154,156Dy, ^156,158Er; low-lying positive-parity states in ¹⁴⁶Ce, ^{140,142,144,146,148}Ba; and B(E2) in ^144,146Ba, ^146,148Ce, ^148,150Nd.

doi: 10.1103/PhysRevC.91.054312
Citations: PlumX Metrics

2015GU20      Phys.Rev. C 92, 044316 (2015)

J.B.Gupta

Shape phase transition in ^144-152Nd isotopes

NUCLEAR STRUCTURE ^{144,146,148,150,152}Nd; analyzed ground-state bands, low-lying 0+, 2+, 3+, 4+ and 6+ non-yrast levels; calculated levels, J, π, bands, potential-energy curves, B(E2) for different bands, electric monopole transition matrix elements, magnetic-dipole and electric quadrupole moments, occupation numbers of protons and neutrons in Nilsson orbits. Discussed effects of the Z=64 subshell on the ground-state band and the excited vibrational bands. Microscopic dynamic pairing plus quadrupole model. Comparison with experimental data.

doi: 10.1103/PhysRevC.92.044316
Citations: PlumX Metrics

2015GU22      Eur.Phys.J. A 51, 151 (2015)

J.B.Gupta, J.H.Hamilton

Nature of K^π = o⁺₂ bands in A = 140-180 region, a global analysis

COMPILATION Ba, Ce, Nd, Sm, Gd, Dy, Er; compiled 2⁺ and 0⁺ state energy data energy for specified even Z, even N isotopes, B(E2), deformation, K^π rotational bands; calculated energy, B(E2), deformation, rotational bands using DPPQ (dynamic pairing plus quadrupole) model; deduced evidence on the K^π=0⁺₂ rotational bands.

doi: 10.1140/epja/i2015-15151-7
Citations: PlumX Metrics

2015SA26      Phys.Scr. 90, 085303 (2015)

M.Saxena, J.B.Gupta, S.Mandal

Study of nuclear structure of ^76-86Sr isotopes in the pn interacting boson model

NUCLEAR STRUCTURE ^{76,78,80,82,84,86}Sr; calculated low-lying energy levels, energies of quasi gamma and quasi beta bands, B(E2), g-factors. Comparison with experimental data.

doi: 10.1088/0031-8949/90/8/085303
Citations: PlumX Metrics

2014GU08      Phys.Rev. C 89, 034321 (2014)

J.B.Gupta

Test of the Grodzins product rule in N=88 isotones and the role of the Z=64 subshell

NUCLEAR STRUCTURE ^{140,142,144,146,148}Ba, ^{142,144,146,148,150}Ce, ^{144,146,148,150,152}Nd, ^{146,148,150,152,154}Sm, ^{148,150,152,154,156}Gd, ^{150,152,154,156,158,160,162,164}Dy, ^{156,158,160,162,164,166,168,170}Er, ^{158,160,162,164,166,168,170,172}Yb, ^{162,164,166,168,170,172,174}Hf; analyzed validity of Grodzins product rule (E(first 2+))(B(E2) for first 2+) for even-even Z=56-72, N=84-104 nuclei. Discussed collectivity features with increasing valence neutron and proton numbers based on experimental R(4+/2+) ratios, and B(E2) ratios between low-lying states. Softness parameter. Comparison of experimental B(E2) values with predictions of dynamic pairing plus quadrupole model. Role of Z=64 subshell.

doi: 10.1103/PhysRevC.89.034321
Citations: PlumX Metrics

2014GU11      Nucl.Phys. A927, 53 (2014)

J.B.Gupta

Nuclear structure of ¹²⁴Xe in dynamic PPQ model

NUCLEAR STRUCTURE ¹²⁴Xe; calculated levels, J, π, rotational bands, potential energy surface, deformation, B(E2) using dynamic pairing plus quadrupole model in microscopic approach and IBM-1.

doi: 10.1016/j.nuclphysa.2014.03.002
Citations: PlumX Metrics

2014GU25      Eur.Phys.J. A 50, 176 (2014)

J.B.Gupta

Nuclear structure of N = 86 isotones of Ce, Nd, Sm and Gd

NUCLEAR STRUCTURE Ce, Nd, Sm, Gd; calculated levels, J, π, deformation, B(E2), δ(E2/M1) mixing ratios, vibrational bands using DPPQ (dynamic pairing plus quadrupole model). Compared with available data.

doi: 10.1140/epja/i2014-14176-8
Citations: PlumX Metrics

2013GU21      Int.J.Mod.Phys. E22, 1350023 (2013)

J.B.Gupta

New perspective in rotation vibration interaction

doi: 10.1142/S0218301313500237
Citations: PlumX Metrics

2013GU22      Phys.Rev. C 87, 064318 (2013)

J.B.Gupta

Microscopic explanation of the shape-phase transition at N=88-90 and the Z=64 subshell effect for Ba-Dy

NUCLEAR STRUCTURE ^142,144,146Ba, ^144,146,148Ce, ^146,148,150Nd, ^148,150,152Sm, ^150,152,154Gd, ^152,154,156Dy; calculated occupation probabilities of neutrons and protons in deformed Nilsson orbits. N_pN_n scheme. Effect of n-p interaction and shape-phase transitions. Dynamic pairing plus quadrupole model (DPPQ) model.

doi: 10.1103/PhysRevC.87.064318
Citations: PlumX Metrics

2013GU32      Eur.Phys.J. A 49, 126 (2013)

J.B.Gupta

Collective band structure of ^{166, 168}Hf in IBM and DPPQ models

NUCLEAR STRUCTURE ^166,168Hf; calculated energy of the first 2⁺ state, rotational energy, vibrational energy, B(E2), potential energy vs deformation, spectroscopic factor using IBM and using and DPPQ (dynamic pairing plus quadrupole) model. Compared with available data.

doi: 10.1140/epja/i2013-13126-4
Citations: PlumX Metrics

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
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2012GU08      Nucl.Phys. A882, 21 (2012)

J.B.Gupta, K.Kumar

Nuclear structure of ^130-136Ce in IBM and DPPQ model

NUCLEAR STRUCTURE ^{130,132,134,136}Ce; analyzed published reaction data; calculated levels, J, π, B(E2), deformation, quadrupole moment, symmetries, potential energy vs deformation, occupation numbers of single-particle orbits using IBM-1 and DPPQ (Dynamic Pairing plus Quadrupole model); deduced IBM-1 and DPPQ parameters. B(E2), levels, J, π compared to data.

doi: 10.1016/j.nuclphysa.2012.03.006
Citations: PlumX Metrics

2012GU24      Eur.Phys.J. A 48, 177 (2012)

J.B.Gupta

A microscopic explanation of the isotonic multiplet at N = 90 and of the F-spin multiplet in Dy-Hf

COMPILATION Nd, Sm, Gd, Dy, Er, Yb, Hf, W, Os; compiled low-lying levels, J, π, inertia moments; deduced X(5) symmetry.

NUCLEAR STRUCTURE ¹⁵⁰Nd, ¹⁵²Sm, ¹⁵⁴Gd, ¹⁵⁶Dy, ¹⁵⁸Er, ¹⁶⁰Yb, ¹⁶²Hf, ¹⁶⁴W, ¹⁶⁶Os; calculated level occupancy, energy vs deformation using DPPQ (Dynamic Pairing Plus Quadrupole) model; deduced formation of N=88, 90 isotonic multiplets, F-spin multiplet.

doi: 10.1140/epja/i2012-12177-3
Citations: PlumX Metrics

2011GU13      Phys.Rev. C 83, 064312 (2011)

J.B.Gupta, J.H.Hamilton

Anomaly of the moment of inertia of shape transitional nuclei

NUCLEAR STRUCTURE ^148,150,152Nd, ¹⁵⁰Sm; analyzed kinematic moment of inertia of ground-state bands, backbending using Bohr Hamiltonian with power index formulas; discussed role of ground-state deformation.

doi: 10.1103/PhysRevC.83.064312
Citations: PlumX Metrics

2010GU09      Int.J.Mod.Phys. E19, 1491 (2010)

J.B.Gupta, K.Kumar, J.H.Hamilton

Nuclear structure of ¹⁵⁰Sm in the DPPQ model and IBM

NUCLEAR STRUCTURE ¹⁵⁰Sm; analyzed decay pattern of the low-lying states; calculated potential energy surfaces, B(E2).

doi: 10.1142/S0218301310015898
Citations: PlumX Metrics

2009DH01      Phys.Rev. C 80, 014320 (2009)

A.Dhal, R.K.Sinha, L.Chaturvedi, P.Agarwal, S.Kumar, A.K.Jain, R.Kumar, I.M.Govil, S.Mukhopadhyay, A.Chakraborty, Krishichayan, S.Ray, S.S.Ghugre, A.K.Sinha, R.Kumar, R.P.Singh, S.Muralithar, R.K.Bhowmik, S.C.Pancholi, J.B.Gupta

High spin states in ¹³⁹Pm

NUCLEAR REACTIONS ¹¹⁶Cd(²⁷Al, 4n), E=120 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ), DCO. ¹³⁹Pm; deduced levels, J, π, bands, magnetic rotational bands, B(M1) and B(E2). Comparison with tilted axis cranking calculations.

doi: 10.1103/PhysRevC.80.014320
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2006SI26      Eur.Phys.J. A 28, 277 (2006); Erratum Eur.Phys.J. A 29, 253 (2006)

R.K.Sinha, A.Dhal, P.Agarwal, S.Kumar, Monika, B.B.Singh, R.Kumar, P.Bringel, A.Neusser, R.Kumar, K.S.Golda, R.P.Singh, S.Muralithar, N.Madhavan, J.J.Das, K.S.Thind, A.K.Sinha, I.M.Govil, R.K.Bhowmik, J.B.Gupta, P.K.Joshi, A.K.Jain, S.C.Pancholi, L.Chaturvedi

Loss of collectivity in ⁷⁹Rb

NUCLEAR REACTIONS ⁶³Cu(¹⁹F, 2np), E=60 MeV; measured Eγ, Iγ, γγ-coin, DSA. ⁷⁹Rb deduced high-spin levels, T_1/2, transition quadrupole moments. Comparison with Total Routhian Surface calculations. INGA array.

doi: 10.1140/epja/i2005-10286-8
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2005GO40      Eur.Phys.J. A 25, Supplement 1, 471 (2005)

P.M.Gore, E.F.Jones, J.H.Hamilton, A.V.Ramayya, X.Q.Zhang, J.K.Hwang, Y.X.Luo, K.Li, S.J.Zhu, W.C.Ma, J.O.Rasmussen, I.Y.Lee, M.Stoyer, J.D.Cole, A.V.Daniel, G.M.Ter-Akopian, Yu.Ts.Oganessian, R.Donangelo, J.B.Gupta

Unexpected rapid variations in odd-even level staggering in gamma-vibrational bands

NUCLEAR STRUCTURE ^104,106,108Mo, ^108,110,112Ru, ^112,114,116Pd, ^{156,162,164,166,168,170}Er; analyzed vibrational bands level energies, odd-even level staggering.

doi: 10.1140/epjad/i2005-06-178-9
Citations: PlumX Metrics

2003GU20      Pramana 61, 167 (2003)

J.B.Gupta, A.K.Kavathekar

Systematics of the K^π = 2 + gamma vibrational bands and odd-even staggering

NUCLEAR STRUCTURE Xe, Ba, Ce, Nd, Sm, Gd, Dy, Er, Yb, Hf, W, Os, Pt; analyzed vibrational band level energy systematics, deformation effects, odd-even staggering.

doi: 10.1007/BF02704521
Citations: PlumX Metrics

2002GU18      Nucl.Phys. A705, 40 (2002)

J.B.Gupta, K.Kumar

Shape Changes of N = 66 Isotones Mo-Ce in DPPQ Model

NUCLEAR STRUCTURE ¹⁰⁸Mo, ¹¹⁰Ru, ¹¹²Pd, ¹¹⁴Cd, ¹¹⁶Sn, ¹¹⁸Te, ¹²⁰Xe, ¹²²Ba, ¹²⁴Ce; calculated 2⁺ level energies, B(E2), deformation, related features. Dynamic pairing plus quadrupole model, comparison with data.

doi: 10.1016/S0375-9474(02)00594-8
Citations: PlumX Metrics

2002GU22      J.Phys.(London) G28, 2365 (2002)

J.B.Gupta

Collective Nuclear Structure of Neutron Rich ^104-108Mo

NUCLEAR STRUCTURE ^104,106,108Mo; calculated level energies, quadrupole moments, B(E2), vibrational band structures. Evidence for two-phonon vibrational bands discussed. Interacting boson model, comparison with data.

doi: 10.1088/0954-3899/28/9/303
Citations: PlumX Metrics

2001GU12      Phys.Rev. C63, 044308 (2001)

J.B.Gupta, J.H.Hamilton, A.V.Ramayya

Microscopic Study of the ¹⁶⁸Er Multiphonon Band Structure

NUCLEAR STRUCTURE ¹⁶⁸Er; calculated levels, J, π, B(E2); deduced multiphonon band structure. Dynamic deformation theory.

doi: 10.1103/PhysRevC.63.044308
Citations: PlumX Metrics

2001KU18      Nucl.Phys. A694, 199 (2001)

K.Kumar, J.B.Gupta

Collectivity of Light Ba Isotopes in the DPPQ Model

NUCLEAR STRUCTURE ^{122,124,126,128,130,132,134}Ba; calculated level energies, E2 moments. Collective microscopic theory, dynamic pairing-plus-quadrupole model.

doi: 10.1016/S0375-9474(01)00925-3
Citations: PlumX Metrics

1997GU20      Phys.Scr. 56, 574 (1997)

J.B.Gupta, A.K.Kavathekar

Variation of Rotational Content in E(2₁⁺) with Valence Nucleon Pairs and Correlation with B(E2) ↑ and E(0(β)⁺)

NUCLEAR STRUCTURE Z=54-78; N=66-118; analyzed ground-state collective bands levels, B(E2); deduced rotational vs vibrational content, shape transitions.

doi: 10.1088/0031-8949/56/6/006
Citations: PlumX Metrics

1997GU24      Phys.Rev. C56, 3417 (1997)

J.B.Gupta, A.K.Kavathekar, Y.P.Subharwal

Reexamination of the Variable Moment of Inertia Nuclear Softness Model

NUCLEAR STRUCTURE ¹⁶²Dy, ¹⁶⁴Er, ¹⁷⁴Yb, ¹⁷²Hf, ¹⁷⁴W; calculated high-spin levels. Z=54-76; N=66-126; analyzed high-spin levels; deduced softness parameter. Variable moment of inertia model.

doi: 10.1103/PhysRevC.56.3417
Citations: PlumX Metrics

1995GU03      Phys.Scr. 51, 316 (1995)

J.B.Gupta, A.K.Kavathekar, R.Sharma

A Single Term Expression of Ground Band Level Energies of a Soft Rotor

NUCLEAR STRUCTURE A=150-200; calculated levels, band structure. Power law, single term expression.

doi: 10.1088/0031-8949/51/3/005
Citations: PlumX Metrics

1995GU04      J.Phys.(London) G21, 565 (1995)

J.B.Gupta

Nuclear Structure of ^144-150Nd in IBM-1

NUCLEAR STRUCTURE ^146,148,150Nd; calculated levels, B(λ), ratios, quadrupole moments. Interacting boson model.

doi: 10.1088/0954-3899/21/4/008
Citations: PlumX Metrics

1995LU10      Phys.Rev. C52, 1348 (1995)

Q.H.Lu, K.Butler-Moore, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, V.E.Oberacker, W.C.Ma, B.R.S.Babu, J.K.Deng, J.Kormicki, J.D.Cole, R.Aryaeinejad, Y.X.Dardenne, M.Drigert, L.K.Peker, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, I.Y.Lee, M.F.Mohar, J.M.Nitschke, N.R.Johnson, F.K.McGowan, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.B.Gupta

Structure of ^108,110,112Ru: Identical bands in ^108,110Ru

RADIOACTIVITY ²⁵²Cf(SF); measured Eγ, Iγ, γγ-, γγγ-, (X-ray)γ-coin. ^108,110,112Ru deduced levels, J, π, intraband B(E2) ratios. Rotation-vibration, rigid triaxial rotor calculation.

doi: 10.1103/PhysRevC.52.1348
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1993GU05      Phys.Rev. C47, 1489 (1993)

J.B.Gupta

Z = 64 Subshell Gap in the Shell Model and the Effective Boson Number in the Interacting Boson Model

NUCLEAR STRUCTURE ¹³⁸Ba, ¹⁴⁰Ce, ¹⁴²Nd, ¹⁴⁴Sm, ¹⁴⁶Gd; calculated proton occupancies for g_9/2-s_1/2 orbits. ^{146,148,150,152,154}Sm; calculated proton spectroscopic factors. Interacting boson model.

doi: 10.1103/PhysRevC.47.1489
Citations: PlumX Metrics

1992GU07      Nucl.Phys. A542, 429 (1992)

J.B.Gupta, J.H.Hamilton, A.V.Ramayya

Nuclear Structure of ^158,160Dy in the Dynamic Pairing-Plus-Quadrupole Model and the Shape Phase Transitions in ^154-160Dy

NUCLEAR STRUCTURE ^158,160Dy; calculated levels, band structure absolute B(E2), interband B(E2) ratios. ^154,156Dy; calculated levels; deduced band structure. Dynamic pairing-plus-quadrupole model.

doi: 10.1016/0375-9474(92)90105-S
Citations: PlumX Metrics

1991MI05      Phys.Scr. 43, 558 (1991)

H.M.Mittal, S.Sharma, J.B.Gupta

Tests of Rigid Triaxiality for Light Te-Sm Nuclei

NUCLEAR STRUCTURE ^{118,120,122,124,126,128}Te, ^{120,122,124,126,128,130,132}Xe, ^{126,128,130,132,134}Ba, ^134,136Ce, ^136,138Nd, ^138,140Nd; analyzed B(E2) ratios; deduced shape features.

doi: 10.1088/0031-8949/43/6/004
Citations: PlumX Metrics

1990GU03      J.Phys.(London) G16, 71 (1990)

J.B.Gupta

Shape Transition of Light Sm Isotopes in the Interacting Boson Model

NUCLEAR STRUCTURE ^136,138,140Sm; calculated levels, B(λ), quadrupole moment, ratios. Interacting boson model.

doi: 10.1088/0954-3899/16/1/011
Citations: PlumX Metrics

1990GU06      Phys.Scr. 41, 660 (1990)

J.B.Gupta, H.M.Mittal, S.Sharma

Study of Shape Phase Transitions and the F-Spin Multiplets through the Shape Fluctuation Energy

NUCLEAR STRUCTURE A=120-200; calculated shape fluctuation energy; deduced F-spin multiplet shape phase transition features. Interacting boson model, even-even nuclei.

doi: 10.1088/0031-8949/41/5/006
Citations: PlumX Metrics

1990GU12      Phys.Rev. C42, 1373 (1990)

J.B.Gupta, H.M.Mittal, J.H.Hamilton, A.V.Ramayya

Systematic Dependence of the γ-g B(E2) Ratios on the N(p)N(n) Product

NUCLEAR STRUCTURE A=120-200; analyzed B(E2) systematics; deduced N(p)N(n) scheme limitations.

doi: 10.1103/PhysRevC.42.1373
Citations: PlumX Metrics

1989GU01      Phys.Scr. 39, 50 (1989)

J.B.Gupta, S.Sharma

Interband B(E2) Ratios in the Rigid Triaxial Model, a Review

NUCLEAR STRUCTURE ^146,148,150Nd, ^{148,150,152,154,156}Sm, ^{150,152,154,156,158,160}Gd, ^{154,156,158,160,162,164}Dy, ^{156,158,160,164,166,168,170}Er, ^{158,164,166,168,170,172,174,176,178}Yb, ^{166,168,170,172,174,176,178,180}Hf, ¹⁷⁰Er, ^{178,180,182,184,186}W, ^{178,180,182,184,186,188,190,192,194}Os, ^{180,182,184,186,188,190,192,194,196}Pt; analyzed B(E2); deduced asymmetry parameter (γ₀). Rigid triaxial model.

doi: 10.1088/0031-8949/39/1/007
Citations: PlumX Metrics

1989GU07      Phys.Rev. C39, 1604 (1989)

J.B.Gupta

Nuclear Structure of ^154,156Dy in the Dynamic Pairing-Plus-Quadrupole Model

NUCLEAR STRUCTURE ^154,156Dy; calculated levels, B(λ), ratio, μ, quadrupole moment. Dynamic pairing plus quadrupole model.

doi: 10.1103/PhysRevC.39.1604
Citations: PlumX Metrics

1988GU08      Nucl.Phys. A484, 189 (1988)

J.B.Gupta

Nuclear Structure of ¹⁴⁴Nd in IBM and DPPQ Model

NUCLEAR STRUCTURE ^{144,146,148,150}Nd; calculated quadrupole moments, μ, E2 matrix elements. ¹⁴⁴Nd; calculated levels, B(E2), ratios, g. Dynamic deformation theory.

doi: 10.1016/0375-9474(88)90070-X
Citations: PlumX Metrics

1988GU19      Indian J.Pure Appl.Phys. 26, 601 (1988)

J.B.Gupta, S.Sharma

Limits of Validity of the Linear Band Mixing Theory

NUCLEAR STRUCTURE A=150-200; analyzed interband B(E2) ratios data, model results; deduced linear band mixing limits validity.

1986GU02      Phys.Rev. C33, 1505 (1986)

J.B.Gupta

Unbroken SU(3) Symmetry and the Relation of Interacting-Boson-Model Parameters with the Shell Model

NUCLEAR STRUCTURE ^{156,158,160,162,164,166,168,170}Er, ^{160,162,164,166,168,170,172,174}Yb, ^{156,158,160,162,164}Dy, ^{166,168,170,172,174,176}Hf; analyzed B(E2); deduced moment of inertia, B(E2) linear relation with (NpNn). Interacting boson model, exact SU(3) symmetry limit.

doi: 10.1103/PhysRevC.33.1505
Citations: PlumX Metrics

1986KU02      Nucl.Phys. A448, 36 (1986)

K.Kumar, J.B.Gupta, J.H.Hamilton

Proton Spectroscopic Factors of Sm Isotopes in the Pairing-Plus-Quadrupole Model

NUCLEAR STRUCTURE ^152,154Sm; calculated single proton S. Pairing plus quadrupole model.

doi: 10.1016/0375-9474(86)90178-8
Citations: PlumX Metrics

1985GU03      J.Phys.(London) G11, 119 (1985)

J.B.Gupta, S.Sharma

Proton Spectroscopic Factors in Some N = 88 Isotones from the Pairing-Plus-Quadrupole Model

NUCLEAR STRUCTURE ¹⁴⁸Nd, ¹⁵⁰Sm, ¹⁵²Gd; calculated proton transfer spectroscopic factors. Pairing plus quadrupole model.

doi: 10.1088/0305-4616/11/1/017
Citations: PlumX Metrics

1984GU08      Phys.Rev. C29, 2381 (1984)

J.B.Gupta

Interband B(E2) Values in ¹⁵²Gd from Dynamic Deformation Theory

NUCLEAR STRUCTURE ¹⁵²Gd; calculated interband B(E2). Dynamic deformation theory.

doi: 10.1103/PhysRevC.29.2381
Citations: PlumX Metrics

1984KU02      J.Phys.(London) G10, 525 (1984)

K.Kumar, J.B.Gupta

Nuclear Structure of the N = 88 Transitional Nucleus ¹⁵²Gd in the Pairing-Plus-Quadrupole Model

NUCLEAR STRUCTURE ¹⁵²Gd; calculated potential energy vs deformation, levels, δ(E2/M1), B(E2) branching ratios, electric monopole, quadrupole moments, moment of inertia, X(E0/E2). Dynamic deformation theory, pairing plus quadrupole model.

doi: 10.1088/0305-4616/10/4/013
Citations: PlumX Metrics

1983BH02      Phys.Rev. C27, 872 (1983)

S.K.Bhardwaj, K.K.Gupta, J.B.Gupta, D.K.Gupta

Rotation-Vibration Description and Transitional Nuclei

NUCLEAR STRUCTURE ^150,152,154Sm, ¹⁵⁴Gd, ¹⁵⁶Dy, ¹⁹⁴Pt; calculated levels, B(E2), branching ratios. Rotation-vibration description, anharmonicity, mass parameters.

doi: 10.1103/PhysRevC.27.872
Citations: PlumX Metrics

1983GU13      Phys.Scr. 28, 21 (1983)

J.B.Gupta

Study of the Multiphonon Bands in ¹⁵⁶Gd by the DPPQ Model

NUCLEAR STRUCTURE ¹⁵⁶Gd; calculated levels, rotational bands, B(E2), B(E2) ratios, reduced E0 transition probability, mixing ratio X(E0/E2). Dynamic pairing plus quadrupole method, multi-phonon bands.

doi: 10.1088/0031-8949/28/1/004
Citations: PlumX Metrics

1983GU16      Phys.Rev. C28, 1829 (1983)

J.B.Gupta

Nuclear Structure of ^146-154Sm in the Dynamic Pairing-Plus-Quadrupole Model

NUCLEAR STRUCTURE ^{146,148,150,152,154}Sm; calculated levels, B(E2), potential energy surfaces, g, quadrupole moments, isomer shifts. Dynamic pairing plus quadrupole model.

doi: 10.1103/PhysRevC.28.1829
Citations: PlumX Metrics

1981GU03      J.Phys.(London) G7, 673 (1981)

J.B.Gupta, K.Kumar

On a Delicate Balance of Pairing and Quadrupole Forces in ¹⁵⁰Sm and a Recalculation of E0/E2 Moments

NUCLEAR STRUCTURE ¹⁵⁰Sm; calculated E0, E2 transition strengths, branching ratios. Dynamic deformation theory.

doi: 10.1088/0305-4616/7/5/012
Citations: PlumX Metrics

1979KU16      Aust.J.Phys. 32, 307 (1979)

K.Kumar, J.B.Gupta, J.H.Hamilton

Dynamic Deformation Theory and Multiphonon Vibrational Bands in ¹⁵⁴Gd

NUCLEAR STRUCTURE ¹⁵⁴Gd; calculated excited band energies, B(E2), μ, δ, E0 moments. Dynamic deformation theory, pairing plus quadrupole model.

doi: 10.1071/PH790307
Citations: PlumX Metrics

1978KU09      Nucl.Phys. A304, 295 (1978)

K.Kumar, J.B.Gupta

Dynamic Deformation Theory of the B(E2) Values and the Quadrupole Shape Characteristics of Even Gadolinium Nuclei

NUCLEAR STRUCTURE ^{152,154,156,158,160}Gd; calculated levels, B(E2).

doi: 10.1016/0375-9474(78)90239-7
Citations: PlumX Metrics

1977GU09      Phys.Rev. C16, 427 (1977)

J.B.Gupta, K.Kumar, J.H.Hamilton

Pairing-Plus-Quadrupole Model Calculations for ^154,156Gd

NUCLEAR STRUCTURE ¹⁵⁶Gd; calculated levels, B(E2), quadrupole moment, μ, M(λ), δ, deformation β. ¹⁵⁴Gd calculated B(E2).

doi: 10.1103/PhysRevC.16.427
Citations: PlumX Metrics

1977GU10      Z.Phys. A282, 179 (1977)

J.B.Gupta, S.L.Gupta, J.H.Hamilton, A.V.Ramayya

Gamma-Gamma Directional Correlations and Coincidence Studies in ¹⁵⁴Gd

RADIOACTIVITY ¹⁵⁴Eu; measured Eγ, Iγ, γγ(θ), γγ-coin. ¹⁵⁴Gd deduced levels, K, J, π, δ.

doi: 10.1007/BF01408162
Citations: PlumX Metrics

1973GU10      Z.Phys. 261, 137 (1973)

J.B.Gupta, N.C.Singhal, J.H.Hamilton

Search for Weak Transitions in the Decay of ¹²⁵Sb and Accurate Gamma Intensities

RADIOACTIVITY ¹²⁵Sb; measured Eγ, Iγ. ¹²⁵Te deduced transitions.

doi: 10.1007/BF01394555
Citations: PlumX Metrics

1971HA17      Nucl.Phys. A172, 139 (1971)

J.H.Hamilton, S.M.Brahmavar, J.B.Gupta, R.W.Lide, P.H.Stelson

Search for Weak Transitions in the Decay of ^108mAg

RADIOACTIVITY ^108mAg [from ¹⁰⁷Ag(n, γ)]; measured Eγ, Iγ; deduced isomeric branching. Ge(Li) detectors. Sources produced 1950'S, 1960'S.

doi: 10.1016/0375-9474(71)90121-7
Citations: PlumX Metrics

1968GU10      Indian J.Phys. 42, 408 (1968)

J.B.Gupta, N.Nath

Neutron Inelastic Scattering in Pb 206 and Pb 207

NUCLEAR REACTIONS ^206,207Pb(n, n'), E = 0.6-4.0 MeV; calculated σ(E). Hauser-Feshbach theory.

1960SA31      Proc.Nat.Inst.Sci.India 26A, 486 (1960)

N.K.Saha, J.B.Gupta

The γ/β Branching Ratio in the Decay Scheme of K⁴⁰

NUCLEAR STRUCTURE ⁴⁰K; measured not abstracted; deduced nuclear properties.

1959SA72      NP-9166, p.34 (1959); Nuclear Sci.Abstr. 15, Abstr.2145 (1961)

N.K.Saha, J.B.Gupta