NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = S.Pittel Found 88 matches. 2020LE12 Phys.Rev. C 102, 024310 (2020) Variational approach for pair optimization in the nucleon pair approximation NUCLEAR STRUCTURE 132,134,136Ba; calculated levels, J, π, potential energy surfaces, deformation parameters, collective-pair weights of the optimized collective-pair condensates, yrast bands, quasi-β, quasi-γ bands, B(E2) using pair-condensate variational approach (PCV) for nucleon-pair approximation (NPA) based methods. Comparison with experimental data.
doi: 10.1103/PhysRevC.102.024310
2016DU09 Phys.Rev. C 93, 034313 (2016) J.Dukelsky, S.Pittel, C.Esebbag Structure of the number-projected BCS wave function
doi: 10.1103/PhysRevC.93.034313
2016QI06 Phys.Rev. C 94, 024301 (2016) Global correlations between electromagnetic and spectroscopic properties of collective 2+1 and 2+2 states NUCLEAR STRUCTURE 80Kr, 86Sr, 92Zr, 132Xe, 150,152Sm, 160,162,164Dy, 166,168Er, 184,186W, 188,190,192Os, 192,194,196,198Pt; A=10-240; analyzed systematic correlations between excitation energies, magnetic and quadrupole moments, and E2 collectivity for the lowest two 2+ states in even-even nuclei across the whole chart of nuclides, with experimental data taken from the ENSDF database. Triaxial rotor (TRM) and anharmonic-vibrator (AHV) model analysis.
doi: 10.1103/PhysRevC.94.024301
2015LE08 Phys.Rev. C 92, 024321 (2015) Phase change near N=70 in the wave function of the Iπ=11/2- isomers along the cadmium-isotope chain NUCLEAR STRUCTURE 111,113,115,117,119,121,123,125,127Cd; calculated B(E2) and quadrupole moments for 11/2- isomers using optimized shell-model wave functions. Comparison with experimental data.
doi: 10.1103/PhysRevC.92.024321
2013FU03 Phys.Rev. C 87, 044310 (2013) G.J.Fu, Y.Lei, Y.M.Zhao, S.Pittel, A.Arima Nucleon-pair approximation of the shell model with isospin symmetry
doi: 10.1103/PhysRevC.87.044310
2013PI08 J.Phys.:Conf.Ser. 445, 012031 (2013) S.Pittel, Y.Lei, G.J.Fu, Y.M.Zhao Spherical to deformed shape transitions in the nucleon pair shell model NUCLEAR STRUCTURE 142,144,146,148Ce; calculated levels, J, π, deformation, deformation energy, binding energy using nucleon-pair approximation of the shell model. Compared with available data.
doi: 10.1088/1742-6596/445/1/012031
2012LE21 J.Phys.:Conf.Ser. 381, 012107 (2012) Y.Lei, S.Pittel, N.Sandulescu, A.Poves, B.Thakur, Y.M.Zhao Systematic study of proton-neutron pairing correlations in the nuclear shell model NUCLEAR STRUCTURE 44,46Ti, 48Cr; calculated levels, J, π, rotational ground-state band, mass excess. 48Cr calculated yrast band. Shell model including deformation, spin-orbit effects, isoscalar, isovector pairing. Compared to available data.
doi: 10.1088/1742-6596/381/1/012107
2012LE22 J.Phys.:Conf.Ser. 387, 012018 (2012) Y.Lei, S.Pittel, N.Sandulescu, A.Poves, B.Thakur, Y.M.Zhao Systematic study of isoscalar and isovector pairing in the 2p1f shell NUCLEAR STRUCTURE 44,46Ti, 48Cr; calculated levels, J, π, mass excess, ground band, yrast, yrare bands with isovector, isoscalar and SU(4) pairing. Levels compared with data.
doi: 10.1088/1742-6596/387/1/012018
2011LE07 Phys.Rev. C 83, 024302 (2011) Y.Lei, Z.Y.Xu, Y.M.Zhao, S.Pittel, A.Arima Emergence of generalized seniority in low-lying states with random interactions NUCLEAR STRUCTURE 22O, 46Ca; calculated generalized seniority properties of the low-lying spin 0, 2 and 4 states using one and two body random interactions. S-pair correlation structure including two-body random ensemble (TBRE) and random Quasi-particle ensemble (RQE).
doi: 10.1103/PhysRevC.83.024302
2011LE27 Phys.Rev. C 84, 044318 (2011) Y.Lei, S.Pittel, N.Sandulescu, A.Poves, B.Thakur, Y.M.Zhao Systematic study of proton-neutron pairing correlations in the nuclear shell model NUCLEAR STRUCTURE 42Sc, 44,45,46Ti, 46V, 48Cr; calculated level energies, energy splittings, yrast and yrare bands, E2 transition matrix elements, proton-neutron pairing modes, isoscalar and isovector pairs. Parameterized Hamiltonian, shell-model framework. Comparison with experimental data.
doi: 10.1103/PhysRevC.84.044318
2011PI02 Acta Phys.Pol. B42, 427 (2011) The Density Matrix Renormalization Group and the Nuclear Shell Model NUCLEAR STRUCTURE 47,48,49,50Cr, 51,52Fe, 55,56Ni; Calculated energies of the lowest excited state, J, π. GXPF1A interaction.
doi: 10.5506/APhysPolB.42.427
2010FU10 Phys.Rev. C 82, 034304 (2010) G.J.Fu, H.Jiang, Y.M.Zhao, S.Pittel, A.Arima Nuclear binding energies and empirical proton-neutron interactions ATOMIC MASSES Z=24-102, N=30-160; calculated binding energies and atomic masses using a local mass formula derived from exponential function to simulate the residual proton-neutron interactions. Comparison with AME-2003 mass evaluation.
doi: 10.1103/PhysRevC.82.034304
2008BA17 Phys.Rev. C 77, 041304 (2008) J.Barea, A.Frank, J.G.Hirsch, P.Van Isacker, S.Pittel, V.Velazquez Garvey-Kelson relations and the new nuclear mass tables NUCLEAR STRUCTURE Z=5-100, N=8-270; deduced Garvey-Kelson mass relations. Finite-range liquid-drop model (FRDM), Duflo-Zuker(DZ) model, and Hartree-Fock-Bogoliubov model. Comparison with evaluated masses.
doi: 10.1103/PhysRevC.77.041304
2008HI20 Int.J.Mod.Phys. E17, Supplement 1, 398 (2008) J.G.Hirsch, I.Morales, J.Mendoza-Temis, A.Frank, J.C.Lopez-Vieyra, J.Barea, S.Pittel, P.van Isacker, V.Velazquez The art of predicting nuclear masses
doi: 10.1142/S0218301308012014
2008PI07 Int.J.Mod.Phys. E17, Supplement 1, 122 (2008) S.Pittel, B.Thakur, N.Sandulescu The density matrix renormalization group and the nuclear shell model NUCLEAR STRUCTURE 48Cr, 56Ni; calculated ground state energy, lowest excited state energies, J, π.
doi: 10.1142/S021830130801180X
2008TH06 Phys.Rev. C 78, 041303 (2008) B.Thakur, S.Pittel, N.Sandulescu Density matrix renormalization group study of 48Cr and 56Ni NUCLEAR STRUCTURE 48Cr, 56Ni; calculated energies of ground state and low-lying excited states. Density Matrix Renormalization Group Method.
doi: 10.1103/PhysRevC.78.041303
2007DU06 Int.J.Mod.Phys. E16, 210 (2007) J.Dukelsky, B.Errea, S.H.Lerma, S.Pittel Exactly solvable pairing Hamiltonians
doi: 10.1142/S0218301307005545
2007DU16 Phys.Rev. C 76, 011302 (2007) G.G.Dussel, S.Pittel, J.Dukelsky, P.Sarriguren Cooper pairs in atomic nuclei
doi: 10.1103/PhysRevC.76.011302
2006DU16 Int.J.Mod.Phys. E15, 1665 (2006) J.Dukelsky, S.H.Lerma, B.Errea, S.Pittel, S.Dimitrova, V.G.Gueorguiev, P.van Isacker Rank-two Richardson-Gaudin models NUCLEAR STRUCTURE 64Ge; calculated pair energies.
doi: 10.1142/S0218301306005289
2006LE30 Phys.Rev. C 74, 024314 (2006) S.H.Lerma, B.Errea, J.Dukelsky, S.Pittel, P.Van Isacker Exactly solvable models of proton and neutron interacting bosons
doi: 10.1103/PhysRevC.74.024314
2006PI02 Phys.Rev. C 73, 014301 (2006) Density matrix renormalization group and the nuclear shell model NUCLEAR STRUCTURE 48Cr; calculated ground and excited states energies. Density matrix renormalization group method.
doi: 10.1103/PhysRevC.73.014301
2006PI13 Phys.Scr. T125, 91 (2006) Exactly solvable Richardson-Gaudin models and their applications NUCLEAR STRUCTURE 114,115,116Sn; calculated pairing correlations, related features.
doi: 10.1088/0031-8949/2006/T125/020
2004DU03 Rep.Prog.Phys. 67, 513 (2004) The density matrix renormalization group for finite fermi systems
doi: 10.1088/0034-4885/67/4/R02
2003ST22 Phys.Rev. C 68, 054312 (2003) M.V.Stoitsov, J.Dobaczewski, W.Nazarewicz, S.Pittel, D.J.Dean Systematic study of deformed nuclei at the drip lines and beyond NUCLEAR STRUCTURE 4He, 6Be, 10C, 14O, 18Ne, 20Mg, 24Si, 28S, 32Ar, 36Ca, 40Ti, 44Cr, 46Fe, 52Ni, 56Zn, 60Ge, 64Se, 70Kr, 72Sr, 76Zr, 82Mo, 86Ru, 90Pd, 94Cd, 102Sn, 108Te, 112Xe, 116Ba, 118Ce, 124Nd, 130Sm, 134Gd, 138Dy, 144Er, 148Yb, 152Hf, 158W, 162Os, 168Pt, 172Hg, 182Pb; calculated deformations, two-proton separation energies, pair gaps. 8He, 12Be, 22C, 26O, 34Ne, 42Mg, 46Si, 52S, 58Ar, 68Ca, 72Ti, 80Cr, 84Fe, 88Ni, 100Zn, 108Ge, 114Se, 118Kr, 120Sr, 124Zr, 132Mo, 142Ru, 150Pd, 168Cd, 174Sn, 176Te, 178Xe, 182Ba, 186Ce, 188Nd, 204Sm, 208Gd, 216Dy, 222Er, 230Yb, 254Hf, 256W, 258Os, 260Pt, 262Hg, 266Pb; calculated deformations, two-neutron separation energies, pair gaps. 30,32,34Ne, 38,40,42Mg, 48,50,52S, 96,98,100Zn; calculated binding energy vs deformation. HFB calculations, transformed harmonic-oscillator basis.
doi: 10.1103/PhysRevC.68.054312
2002DU05 Phys.Rev.Lett. 88, 062501 (2002) J.Dukelsky, C.Esebbag, S.Pittel Electrostatic Mapping of Nuclear Pairing NUCLEAR STRUCTURE 114,116Sn; calculated nucleon pairing properties, orbital occupation probabilities. Mapping of nuclear pairing to classical electrostatic system.
doi: 10.1103/PhysRevLett.88.062501
2002DU13 Phys.Rev. C65, 054319 (2002) J.Dukelsky, S.Pittel, S.S.Dimitrova, M.V.Stoitsov Density Matrix Renormalization Group Method and Large-Scale Nuclear Shell-Model Calculations
doi: 10.1103/PhysRevC.65.054319
2002MO15 Phys.Rev. C65, 044322 (2002) O.Monnoye, S.Pittel, J.Engel, J.R.Bennett, P.Van Isacker Odd-Mass Nickel Isotopes in a Generalized-Seniority Approach NUCLEAR STRUCTURE 57,59,61,63,65,67,69Ni; calculated levels, J, π, μ. 66Co, 69Cu; calculated levels, J, π. Comparisons with data. Generalized seniority approximation.
doi: 10.1103/PhysRevC.65.044322
2002ZH38 Phys.Rev. C66, 041301 (2002) Y.M.Zhao, S.Pittel, R.Bijker, A.Frank, A.Arima Generic rotation in a collective SD nucleon-pair subspace
doi: 10.1103/PhysRevC.66.041301
2001DU07 Phys.Rev.Lett. 86, 4791 (2001) New Mechanism for the Enhancement of sd Dominance in Interacting Boson Models
doi: 10.1103/PhysRevLett.86.4791
2001DU08 Phys.Rev. C63, 061303 (2001) New Approach to Large-Scale Nuclear Structure Calculations
doi: 10.1103/PhysRevC.63.061303
2001PI11 Yad.Fiz. 64, No 6, 1130 (2001); Phys.Atomic Nuclei 64, 1055 (2001) An Improved Single-Particle Basis for Nuclear Structure Studies Far from Stability NUCLEAR STRUCTURE 28O; calculated energy, neutron and proton radii. 20,22,24,26,28,30,32,34,36,38,40,42,44Mg; calculated two-neutron separation energies, deformation parameters. Transformed harmonic oscillator basis.
doi: 10.1134/1.1383616
2000PI11 Trans.Bulg.Nucl.Soc. 5, 117 (2000) Proton-Neutron Pairing and the Generalized BCS Approximation
2000ST04 Phys.Rev. C61, 034311 (2000) M.V.Stoitsov, J.Dobaczewski, P.Ring, S.Pittel Quadrupole Deformations of Neutron-Drip-Line Nuclei Studied within the Skyrme Hartree-Fock-Bogoliubov Approach NUCLEAR STRUCTURE 20,22,24,26,28,30,32,34,36,38,40,42,44Mg, 8He, 12Be, 22C, 28O, 36Ne, 46Si, 52S, 58Ar; calculated Fermi and pairing energies, deformation, radii. Skyrme HFB approach.
doi: 10.1103/PhysRevC.61.034311
1999BI17 Phys.Rev. C60, 021302 (1999) Dominance of JP = 0+ Ground States in Even-Even Nuclei from Random Two-Body Interactions NUCLEAR STRUCTURE 18,20,22O; calculated level distribution features; deduced no time reversal invariance effect in 0+ dominance. Random two-body interactions.
doi: 10.1103/PhysRevC.60.021302
1999PI03 J.Phys.(London) G25, 661 (1999) Many-Body Approximations in the Presence of Proton-Neutron Pairing
doi: 10.1088/0954-3899/25/4/015
1998DO03 Phys.Rev. C57, 688 (1998) Boson Mappings and Four-Particle Correlations in Algebraic Neutron-Proton Pairing Models
doi: 10.1103/PhysRevC.57.688
1998PI07 J.Phys.(London) G24, 1461 (1998) Use of the Ginocchio Potential in Mean-Field Studies and Beyond
doi: 10.1088/0954-3899/24/8/021
1998ST19 Phys.Rev. C58, 2092 (1998) M.V.Stoitsov, W.Nazarewicz, S.Pittel New Discrete Basis for Nuclear Structure Studies NUCLEAR STRUCTURE 16O, 40Ca, 208Pb; calculated binding energies, neutron, proton rms radii, local one-body densities. Transformed harmonic oscillator basis.
doi: 10.1103/PhysRevC.58.2092
1998VA15 J.Phys.(London) G24, 1261 (1998) P.Van Isacker, J.Dukelsky, S.Pittel, O.Juillet The Fermion SO(8) Model and Its Connection with an IBM-4 with L = 0 Bosons
doi: 10.1088/0954-3899/24/7/008
1997BI03 Phys.Rev. C55, R585 (1997) Transition from the Seniority to the Anharmonic Vibrator Regime in Nuclei
doi: 10.1103/PhysRevC.55.R585
1997EN02 Phys.Rev. C55, 1781 (1997) J.Engel, S.Pittel, M.Stoitsov, P.Vogel, J.Dukelsky Neutron-Proton Correlations in an Exactly Solvable Model
doi: 10.1103/PhysRevC.55.1781
1997ST31 Phys.Lett. 415B, 1 (1997) M.V.Stoitsov, S.S.Dimitrova, S.Pittel, P.Van Isacker, A.Frank Analytically Solvable Mean-Field Potential for Stable and Exotic Nuclei NUCLEAR STRUCTURE 16O, 40Ca, 56,78Ni, 208Pb; calculated ground-state energies, rms radii, density distributions; 56,78Ni; calculated single-particle levels. Ginocchio potential, other potentials compared.
doi: 10.1016/S0370-2693(97)01176-3
1996BE11 Phys.Lett. 368B, 7 (1996) J.R.Bennett, J.Engel, S.Pittel Structure of Pairs in Heavy Weakly-Bound Nuclei
doi: 10.1016/0370-2693(95)01481-0
1996ST11 Phys.Rev. C53, 3088 (1996) M.V.Stoitsov, S.Pittel, J.Dukelsky Brueckner Correlations Following a Boson Mapping of the Two-Color Delta Model
doi: 10.1103/PhysRevC.53.3088
1995GE09 Phys.Rev. C52, 2131 (1995) A.I.Georgieva, R.P.Roussev, P.P.Raychev, M.V.Stoitsov, S.Pittel, J.Dukelsky Baryon Mappings Applied to the Three-Color Delta Model
doi: 10.1103/PhysRevC.52.2131
1994EN03 Phys.Rev. C50, 1702 (1994) Capture of Solar and Higher-Energy Neutrinos by 127I NUCLEAR STRUCTURE 127I, 127Xe; calculated levels, Gamow-Teller strength distribution for 127I decay. Quasiparticle TDA. NUCLEAR REACTIONS 127I(ν, X), E=solar; calculated capture σ; deduced calibration related features, present limitations.
doi: 10.1103/PhysRevC.50.1702
1994PI04 Phys.Rev. C50, 423 (1994) S.Pittel, J.M.Arias, J.Dukelsky, A.Frank Consistent Baryon Mapping of Quark Systems
doi: 10.1103/PhysRevC.50.423
1994VO20 Nucl.Phys. A577, 425c (1994) Neutrino Interaction with Complex Nuclei: The case of 127I NUCLEAR STRUCTURE 127Xe; calculated levels. 127I; calculated ground state wave function, quenched Gamow-Teller decay to 127Xe strength function. Quasiparticle TDA.
doi: 10.1016/0375-9474(94)90892-3
1993KI04 Phys.Rev. C47, 567 (1993) E.Kirchuk, P.Federman, S.Pittel Nuclear Deformation in the Mass-80 and Mass-100 Regions NUCLEAR STRUCTURE 72,74,76,78,80,82,84,88,94,96,98,100,102,104,106Sr, 76,78,80,82,84,86,88,90,92,98,100,102,104,106,108,110Mo, 74,76,78,80,82,84,86,88,90,96,98,100,102,104,106,108Zr; calculated nucleon occupation numbers; deduced neutron-proton interaction role in deformation. Hartree-Fock-Bogolyubov calculations.
doi: 10.1103/PhysRevC.47.567
1993PI08 Phys.Rev. C48, 1050 (1993) S.Pittel, P.Federman, G.E.Arenas Peris, R.F.Casten, W.-T.Chou Semiempirical Determination of Effective p-n Monopole Matrix Elements NUCLEAR STRUCTURE Z=82-126; N=50-82; analyzed data; deduced effective monopole p-n matrix elements.
doi: 10.1103/PhysRevC.48.1050
1992LA12 Nucl.Phys. A543, 469 (1992) Mean-Field Approximations for Deformed Odd-Mass Nuclei NUCLEAR STRUCTURE 166Er, 165Ho; calculated levels. Hartree-Bose-Fermi, Tamm-Dancoff, RPA approximations, neutron-proton interacting boson fermion approximation.
doi: 10.1016/0375-9474(92)90276-P
1991VO09 J.Phys.(London) G17, S119 (1991) Double Beta Decay and Theory of Nuclear Structure RADIOACTIVITY 76Ge, 82Se, 128,130Te(2β); compiled 2β-decay; calculated matrix elements. Quasiparticle RPA, other models comparison.
doi: 10.1088/0954-3899/17/S/012
1990PI03 Nucl.Phys. A507, 239c (1990) S.Pittel, J.Engel, P.Vogel, X.Ji Double Beta Decay in the Generalized Seniority Scheme RADIOACTIVITY 76Ge, 82Se, 128,130Te(2β); calculated 2ν-mode β-decay matrix elements. Generalized seniority truncation scheme.
doi: 10.1016/0375-9474(90)90581-6
1990PI13 Phys.Lett. 247B, 185 (1990) S.Pittel, J.Engel, J.Dukelsky, P.Ring The Nucleus as a Condensate of Collective Quark Triplets NUCLEAR STRUCTURE 16O; calculated quark occupation numbers.
doi: 10.1016/0370-2693(90)90878-A
1989EN02 Phys.Lett. 225B, 5 (1989) J.Engel, P.Vogel, X.Ji, S.Pittel Double Beta Decay in the Generalized-Seniroity Scheme RADIOACTIVITY 76Ge, 82Se, 128,130Te(2β); calculated 2β-decay rate, matrix elements. Generalized seniroty based truncation scheme.
doi: 10.1016/0370-2693(89)90999-4
1987DR10 Ann.Phys.(New York) 176, 114 (1987) C.H.Druce, S.Pittel, B.R.Barrett, P.D.Duval The Interacting Boson Model: Microscopic calculations for the Mercury isotopes NUCLEAR STRUCTURE 194,196,198,200,202Hg; calculated energy levels, B(E2), branching ratios, quadrupole moments. Microscopic interacting boson model.
doi: 10.1016/0003-4916(87)90179-5
1987EN01 Phys.Rev. C35, 1973 (1987) Boson Fermion Dynamical SU(3) Symmetry for Asymmetric Deformation in Odd Mass Nuclei NUCLEAR STRUCTURE 225Ra; calculated levels. Boson fermion dynamical SU(3) symmetry.
doi: 10.1103/PhysRevC.35.1973
1986DU09 Phys.Lett. 177B, 125 (1986) Boson Mapping of Particle-Particle Operators in Deformed Nuclei NUCLEAR STRUCTURE 154Sm; calculated s, d, g bosons probabilities. Hartree-Fock-Bogolyubov approximation.
doi: 10.1016/0370-2693(86)91040-3
1986VA07 Nucl.Phys. A451, 202 (1986) P.Van Isacker, S.Pittel, A.Frank, P.D.Duval Microscopic Study of Configuration Mixing in the Interacting Boson Model NUCLEAR STRUCTURE 102,104,106,108,110,112,114,116,118,120Cd; calculated configuration mixing. Interacting boson model, microscopic study.
doi: 10.1016/0375-9474(86)90411-2
1985DR05 Phys.Lett. 157B, 115 (1985) C.H.Druce, S.Pittel, B.R.Barrett, P.D.Duval Microscopic Calculation of the Majorana Parameters of the Interacting Boson Model for the Hg Isotopes NUCLEAR STRUCTURE 194,196,198,200,202Hg; calculated levels, Majorana parameters. Neutron-proton interacting boson model.
doi: 10.1016/0370-2693(85)91528-X
1985PI07 Phys.Rev. C32, 335 (1985) Comparison between Semiclassical and Classical Descriptions of the Collective M1 Mode in the Interacting Boson Model NUCLEAR STRUCTURE 156Gd; calculated collective M1 mode excitation, moment of inertia. Neutron-proton interacting boson model.
doi: 10.1103/PhysRevC.32.335
1984FE04 Phys.Lett. 140B, 269 (1984) P.Federman, S.Pittel, A.Etchegoyen Quenching of the 2p1/2 - 2p3/2 Proton Spin-Orbit Splitting in the Sr-Zr Region NUCLEAR STRUCTURE 88,90,92,94,96,98Sr; analyzed 2+ level systematics; deduced 2p-proton spin-orbit splitting quenching role. Shell model.
doi: 10.1016/0370-2693(84)90750-0
1984PI12 Phys.Lett. 144B, 145 (1984) S.Pittel, J.Dukelsky, R.P.J.Perazzo, H.M.Sofia s-d-g Boson Model Description of the Collective K = 1+ Mode in Deformed Nuclei NUCLEAR STRUCTURE A ≈ 160; calculated levels, band head energies, B(M1). Hartree-Bose, TDA, s-d-g boson model.
doi: 10.1016/0370-2693(84)91791-X
1983DU08 Phys.Lett. 129B, 289 (1983) P.D.Duval, S.Pittel, B.R.Barrett, C.H.Druce g-Boson Renormalization Effects in the Interacting Boson Model for Nondegenerate Orbits NUCLEAR STRUCTURE 204,202,200,198,196,194,192,190,188,186,184Hg; calculated single boson energy splittings, quadrupole boson parameters. Interacting boson model, nondegenerate orbits, g-boson renormalization.
doi: 10.1016/0370-2693(83)90667-6
1983PI06 Phys.Lett. 128B, 9 (1983) The Structure of the S and D Pairs of the Interacting Boson Model from the Hartree-Fock-Bogolyubov Approximation NUCLEAR STRUCTURE 146,148,150,152,154,156,158,160Sm; calculated spherical, prolate HFB energies, S, D, G nucleon pair probabilities. Microscopic interacting boson model.
doi: 10.1016/0370-2693(83)90063-1
1982CA07 Nucl.Phys. A379, 61 (1982) O.Castanos, P.Federman, A.Frank, S.Pittel Study of the Effective Hamiltonian Interacting Boson Approximation NUCLEAR STRUCTURE 120,122,124,126,128,130,132Xe, 122,124,126,128,130,132,134Ba, 148,150,152,154,156,158Sm, 230,232,234,236,238U; calculated levels. Interacting boson approximation, effective Hamiltonians.
doi: 10.1016/0375-9474(82)90556-5
1982PI08 Ann.Phys.(New York) 144, 168 (1982) S.Pittel, P.D.Duval, B.R.Barrett The Microscopic Interacting Boson Model for Nondegenerate Orbits NUCLEAR STRUCTURE Z=50-82; N=82-126; calculated boson-boson, quadrupole-quadrupole interaction. Microscopic interacting boson model.
doi: 10.1016/0003-4916(82)90107-5
1981PI13 Phys.Rev. C24, 2343 (1981) Lepton Nonconserving (μ-, e+) Raction to Individual Nuclear States NUCLEAR REACTIONS 40Ca(μ-, e+), E at rest; calculated branching ratio. Gauge model.
doi: 10.1103/PhysRevC.24.2343
1979FE04 Phys.Lett. 82B, 9 (1979) P.Federman, S.Pittel, R.Campos Microscopic Study of the Shape Transition in the Zirconium Isotopes NUCLEAR STRUCTURE 96,98Zr; calculated spectra. Shell model, weak coupling model. 102Zr deduced neutron-proton interaction between selected orbitals leads to deformation.
doi: 10.1016/0370-2693(79)90412-X
1979FE07 Phys.Rev. C20, 820 (1979) Unified Shell-Model Description of Nuclear Deformation NUCLEAR STRUCTURE 96,98,100Zr, 98,100,102,104,106,108,110Mo; calculated energy levels; deduced phase transition. Hartree-Fock-Bogoliubov method, surface delta interaction. Shell model, 84Sr core, Yukawa force, Rosenfeld mixture.
doi: 10.1103/PhysRevC.20.820
1978FE05 Phys.Lett. 77B, 29 (1978) Hartree-Fock-Bogolyubov Study of Deformation in the Zr-Mo Region NUCLEAR STRUCTURE 98,100,102,104,106,108,110Mo; calculated deformation energies.
doi: 10.1016/0370-2693(78)90192-2
1976LE02 Nucl.Phys. A256, 509 (1976) The Influence of Ambiguities in the Pion Production Operator on (p, P+) Cross Sections NUCLEAR REACTIONS 12C(p, π+), E=185 MeV; calculated σ. DWBA calculations.
doi: 10.1016/0375-9474(76)90387-0
1976PI01 Phys.Rev. C13, 412 (1976) S.Pittel, C.M.Vincent, J.D.Vergados Perturbative Approximations to the Effective Interaction: Comparisons with Exact Results for Large Matrices NUCLEAR STRUCTURE 18O; calculated perturbative approximations to the effective interaction. Pade approximants.
doi: 10.1103/PhysRevC.13.412
1976PI02 Phys.Lett. 61B, 324 (1976) On the Energy-Dependence of Background-Resonance Interference Effects in Knockout Reactions NUCLEAR REACTIONS 12C(p, 2p), E=0.2-1.0 GeV; calculated missing-energy spectra.
doi: 10.1016/0370-2693(76)90578-5
1976PI14 Nucl.Phys. A271, 62 (1976) A Method for Estimating the Singular Part of the Effective Shell-Model Interaction and its Influence on Perturbation Theory NUCLEAR STRUCTURE 18O; calculated intruder state singularities.
doi: 10.1016/0375-9474(76)90268-2
1975LE04 Phys.Rev. C11, 607 (1975) Fragmentation of Magnetic Dipole Strength in 208Pb NUCLEAR STRUCTURE 208Pb; calculated levels.
doi: 10.1103/PhysRevC.11.607
1974PI01 Nucl.Phys. A218, 221 (1974) Background-Resonance Interference Effects in Knockout Reactions NUCLEAR REACTIONS 12C(p, 2p); measured nothing, calculated σ.
doi: 10.1016/0375-9474(74)90001-3
1973VI11 Phys.Lett. 47B, 327 (1973) Perturbative Approximations to the Effective Hamiltonian in the Presence of an Intruder State NUCLEAR STRUCTURE 18O; calculated matrix elements.
doi: 10.1016/0370-2693(73)90614-X
1972PI11 Phys.Rev.Lett. 29, 1403 (1972) Lifetime Effects in (p, 2p) Reactions NUCLEAR REACTIONS 12C(p, 2p), E=460 MeV; calculated σ, missing mass spectrum; analyzed T1/2 effects.
doi: 10.1103/PhysRevLett.29.1403
1971PE15 Phys.Lett. 37B, 278 (1971) R.J.Peterson, S.Pittel, H.Rudolph An Unexpected 1/2- State in 55Mn NUCLEAR REACTIONS 57Fe(p, 3He), E=27 MeV; measured σ(θ). 55Mn deduced level, J, π, L, S.
doi: 10.1016/0370-2693(71)90018-9
1971PI02 Phys.Lett. 34B, 555 (1971) Mechanism for Extending the 20Ne Rotational Band NUCLEAR STRUCTURE 20Ne; calculated levels. Rotational band extension by shell-model space expansion.
doi: 10.1016/0370-2693(71)90133-X
1970FE06 Nucl.Phys. A155, 161 (1970) Structure of the Calcium Isotopes NUCLEAR STRUCTURE 41,42,43,44,45,46,47,48,49,50Ca; calculated levels, binding energy, S. Shell model, effective interactions.
doi: 10.1016/0375-9474(70)90084-9
1970HA38 Phys.Lett. 32B, 542 (1970) M1 Decay of the 1.7 MeV 1+ State in 206Pb NUCLEAR STRUCTURE 206Pb; calculated B(M1) for 1.7-MeV 1+ state.
doi: 10.1016/0370-2693(70)90538-1
1970HA57 Nucl.Phys. A159, 209 (1970) The Effects of Magnetic Dipole Core Polarization in 206Pb and 207Pb NUCLEAR STRUCTURE 206,207Pb; calculated levels, B(M1), μ. Weak-coupling model, magnetic dipole core polarization.
doi: 10.1016/0375-9474(70)90037-0
1970PI05 Phys.Lett. 33B, 158 (1970) Core-Excited States in 54Fe NUCLEAR STRUCTURE 54Fe; calculated core-excited states.
doi: 10.1016/0370-2693(70)90289-3
1969FE07 Nucl.Phys. A139, 108 (1969) Jπ = 2+ States and E2 Transition Rates in 40Ca NUCLEAR STRUCTURE 40Ca; calculated levels, B(E2).
doi: 10.1016/0375-9474(69)90263-2
1969FE09 Phys.Rev. 186, 1106 (1969) J = 0+ States in Ca40 and Ca42 NUCLEAR STRUCTURE 40,42Ca; calculated levels. Particle-hole model.
doi: 10.1103/PhysRev.186.1106
1969PI13 Phys.Rev. 187, 1398 (1969) Shell-Model Calculation of the Even-Parity States of Ca43 NUCLEAR STRUCTURE 43K; calculated log ft. 43Ca; calculated levels; S for 44Ca(p, d), 42Ca(d, p); M2 hindrance factors. Shell model.
doi: 10.1103/PhysRev.187.1398
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