NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = D.R.Bes Found 55 matches. 2021MA81 Phys.Rev. C 104, L061304 (2021) A.O.Macchiavelli, O.Civitarese, S.M.Lenzi, R.J.Liotta, D.R.Bes "Piston" mechanism in a time-dependent two-level model NUCLEAR STRUCTURE 19N; analyzed one-proton knockout reaction on 19N. populating unbound state in 18C, in the framework of a time-dependent two-level model. 18C; calculated wave functions of g.s. and the first two 2+ states; quantified validity of the so-called 'piston' mechanism (proposed by 2018Re06: Phys. Rev. Lett. 120, 152504) in terms of time scales involved in the process, reaction time, period of oscillation between the mixed states, and the lifetime of the excited unbound state in 18C.
doi: 10.1103/PhysRevC.104.L061304
2019BE10 Nucl.Phys. A983, 53 (2019) The contribution of the pairing field to the transfer of two nucleons NUCLEAR STRUCTURE A=110-124; calculated two-nucleon pairing transfer amplitude vs distance of the centers, moment of inertia for pairing rotational motion using radial-dependent BCS approach; deduced its mass dependence.
doi: 10.1016/j.nuclphysa.2018.12.026
2016BE33 Phys.Scr. 91, 063010 (2016) The field treatment of the nuclear spectrum. Historical foundation and two contributions to its ensuing development
doi: 10.1088/0031-8949/91/6/063010
2012BE25 Phys.Rev. C 86, 024314 (2012) D.R.Bes, O.Civitarese, J.Suhonen Schematic and realistic model calculations of the isovector spin monopole excitations in 116In NUCLEAR REACTIONS 116Cd(p, n)116In, 116Sn(n, p)116In, E not given; calculated Gamow-Teller (GT) and isovector spin monopole (IVSM) strength distributions of 1+ excitations; deduced mixing between GT and IVSM modes, and contribution to 2νββ decay of 116Cd at and beyond the Gamow-Teller giant resonance (GTGR) region of energies.
doi: 10.1103/PhysRevC.86.024314
2010BE02 Phys.Rev. C 81, 014315 (2010) Matrix elements for the ground-state to ground-state 2νβ-β- decay of Te isotopes in a hybrid model RADIOACTIVITY 128,130Te(2β-); calculated matrix elements for ground state to ground state two-neutrino double-β decay within a formalism that describes interactions between neutrons in a superfluid phase and protons in a normal phase. Comparison with experimental data.
doi: 10.1103/PhysRevC.81.014315
2008BE23 Phys.Rev. C 78, 014317 (2008) Isospin-spin excitations in the A = 58 mass region: The 58Ni(3He, t)58Cu reaction NUCLEAR REACTIONS 58Ni(3He, t), E not given; calculated GT matrix elements.A=52-59; analyzed levels, J, π, configurations. Perturbation theory.
doi: 10.1103/PhysRevC.78.014317
2004BE03 Nucl.Phys. A732, 49 (2004) Isospin-symmetry violation. Collective treatment of the I.A.S. NUCLEAR STRUCTURE 208Pb, 208Bi; calculated analog states energies, Fermi transition intensities, isospin symmetry violation effects.
doi: 10.1016/j.nuclphysa.2003.12.008
2004BE33 Nucl.Phys. A741, 60 (2004) The coupling between the IAS and the IMS
doi: 10.1016/j.nuclphysa.2004.06.019
2003BE20 Yad.Fiz. 66, 466 (2003); Phys.Atomic Nuclei 66, 438 (2003) Symmetry Violations in Nuclear Hamiltonians and Their Consequences for Electroweak Decays
doi: 10.1134/1.1563701
2002BE38 Nucl.Phys. A705, 297 (2002) Collective Motion in Iso- and Gauge-Spaces Application to 2νββ-Decay Transitions RADIOACTIVITY 76Ge(2β-); calculated 2ν-accompanied 2β-decay Gamow-Teller transition matrix elements.
doi: 10.1016/S0375-9474(02)00655-3
2002BE43 Czech.J.Phys. 52, 481 (2002) The Calculation of 2νββ Matrix Elements within the Collective Description
doi: 10.1023/A:1015301125199
2002BE44 Czech.J.Phys. 52, 495 (2002) Spurious Center of Mass Effects in Electroweak Decays
doi: 10.1023/A:1015353109269
2001BE14 Phys.Rev. C63, 044323 (2001) Removal of Spurious Center of Mass Effects in Nuclear Many-Body Systems
doi: 10.1103/PhysRevC.63.044323
2000BE02 Phys.Rev. C61, 024315 (2000) D.R.Bes, O.Civitarese, E.E.Maqueda, N.N.Scoccola Structure of the Vacuum States in the Presence of Isovector and Isoscalar Pairing Correlations
doi: 10.1103/PhysRevC.61.024315
1999BE03 Phys.Lett. 446B, 93 (1999) D.R.Bes, O.Civitarese, N.N.Scoccola Collective Description of Nuclear Double Beta Decay Transitions
doi: 10.1016/S0370-2693(98)01520-2
1994BE06 Nucl.Phys. A570, 31c (1994) The Application of the BRST Supersymmetry to Nuclear Problems Involving Collective Coordinates NUCLEAR STRUCTURE 235U; calculated Coriolis coupling strength percentage reduction. Application of BRST supersymmetry.
doi: 10.1016/0375-9474(94)90267-4
1994GA19 Nucl.Phys. A573, 448 (1994) A Systematic Treatment of Triaxial Systems at High Spins. II
doi: 10.1016/0375-9474(94)90352-2
1994GA34 Phys.Lett. 331B, 251 (1994) BRST Treatment of the Bohr Collective Hamiltonian at High Spins
doi: 10.1016/0370-2693(94)91046-4
1989BE40 Phys.Lett. 232B, 163 (1989) M.Bernath, D.R.Bes, O.Dragun, J.E.Testoni, H.Massmann Neutron-Pair Transfer Formalism Including Deformation in Gauge Space for Target and Projectile NUCLEAR REACTIONS 138Ba(14C, 14C), (14C, X), E=64 MeV; calculated σ(θ) for elastic, two-nucleon transfer; deduced model parameters. Macroscopic description, gauge space deformation.
doi: 10.1016/0370-2693(89)91679-1
1986BA13 Nucl.Phys. A452, 513 (1986) B.F.Bayman, D.R.Bes, P.Curutchet, O.Dragun, N.N.Scoccola, J.E.Testoni Electromagnetic Decay of the Giant Quadrupole Resonances (I). Reaction Mechanism and Angular Distributions of the Emitted Photons NUCLEAR REACTIONS 208Pb(17O, 17O'), E=380 MeV; analyzed data; deduced optical model parameters. 208Pb deduced GQR decay characteristics.
doi: 10.1016/0375-9474(86)90212-5
1986BE03 Nucl.Phys. A449, 459 (1986) Quantum-Mechanical Calculation of the Nuclear Moments of Inertia NUCLEAR STRUCTURE 24Mg; calculated levels, moments of inertia. Deformed system, perturbative method.
doi: 10.1016/0375-9474(86)90231-9
1986BE05 Nucl.Phys. A452, 531 (1986) D.R.Bes, P.Curutchet, S.L.Reich, N.N.Scoccola, H.M.Sofia Electromagnetic Decay of the Giant Quadrupole Resonances (II). Nuclear Structure Aspects NUCLEAR STRUCTURE 208Pb; calculated giant resonance decay characteristics, B(λ), Γγ. Nuclear field theory approach.
doi: 10.1016/0375-9474(86)90213-7
1986BE08 Phys.Lett. 169B, 5 (1986) D.R.Bes, P.Lotti, E.Maglione, A.Vitturi On the Radial Dependence of the Pair Transition Density in Superfluid Nuclei NUCLEAR STRUCTURE 116,126Sn; calculated pair transition density radial dependence. Superfluid nuclei.
doi: 10.1016/0370-2693(86)90674-X
1986BE32 J.Phys.(London) G12, 1205 (1986) M.Bernath, D.R.Bes, M.Saraceno, M.E.Spina A Two-Dimensional Soluble Model for the Excitation of Rotational States in Deformed Nuclei NUCLEAR REACTIONS 146Nd(12C, 12C'), E=70.4 MeV; calculated σ(φ) vs transferred angular momentum. Two-dimensional soluble model.
doi: 10.1088/0305-4616/12/11/010
1984BE16 Phys.Lett. 137B, 141 (1984) Rotational Isovector K(π) = 1+ Mode in Deformed Nuclei NUCLEAR STRUCTURE 156Gd; calculated rotational isovector K(π)=1+ mode energy, B(M1). RPA, collective model.
doi: 10.1016/0370-2693(84)90217-X
1983BE31 Nucl.Phys. A405, 313 (1983) D.R.Bes, O.Dragun, E.E.Maqueda The (14C, 14O) Reaction Considered as Simultaneous Pair-Exchange or Double-Charge-Exchange Processes NUCLEAR REACTIONS 208Po(14C, 14O), E=250 MeV; 40Ca(14C, 14O), E=51 MeV; calculated σ(θ), σ vs transferred angular momentum; deduced S=0, 1 channel interference. DWBA formalism, simultaneous pair-, double-charge-exchange processes.
doi: 10.1016/0375-9474(83)90575-4
1983BE53 Phys.Scr. 28, 527 (1983) D.R.Bes, R.A.Broglia, E.Maglione, A.Vitturi Self-Consistent Treatment of the Pairing Plus Quadrupole Force in the Nilsson plus BCS Model and in the Interacting Boson Model NUCLEAR STRUCTURE A ≈ 150; calculated two-nucleon transfer amplitudes, static quadrupole moment vs shell filling parameter. Pairing plus quadrupole, variational calculations.
doi: 10.1088/0031-8949/28/5/004
1983MA55 Nucl.Phys. A407, 98 (1983) M.A.J.Mariscotti, D.R.Bes, S.L.Reich, H.M.Sofia, P.Hungerford, S.A.Kerr, K.Schreckenbach, D.D.Warner, W.F.Davidson, W.Gelletly Search for Two-Octupole-Phonon States in 208Pb NUCLEAR REACTIONS 207Pb(n, γ), E=thermal; measured Eγ, Iγ, γγ-coin, I(ce). 208Pb deduced levels, tentative J, π, two-phonon octupole vibration evidence, B(λ) ratios, γ-branching. RPA formalism.
doi: 10.1016/0375-9474(83)90310-X
1981BE47 Phys.Lett. 106B, 1 (1981) D.R.Bes, O.Dragun, E.E.Maqueda, R.J.Liotta Pair Exchange Reactions NUCLEAR REACTIONS 208Po(14C, 14O), E=250 MeV; calculated σ(θ). DWBA, pair exchange.
doi: 10.1016/0370-2693(81)91067-4
1978PE16 Nucl.Phys. A311, 219 (1978) R.P.J.Perazzo, S.L.Reich, D.R.Bes Collective Treatment of the Pairing Hamiltonian (V). Analysis of Transfer Data for 88 ≤ A ≤ 96 NUCLEAR STRUCTURE Zr, Mo, Ru; calculated energies, two-particle transfer data on 0+ states using simplified rotation-vibration picture, yrast treatment. Compared with diagonalization of charge-independent pairing Hamiltonian.
doi: 10.1016/0375-9474(78)90511-0
1977CI02 Phys.Lett. 72B, 45 (1977) O.Civitarese, R.A.Broglia, D.R.Bes Role of the Pauli Principle in the Spectrum of 211Pb NUCLEAR STRUCTURE 211Pb; calculated levels, S associated with t, d reaction.
doi: 10.1016/0370-2693(77)90059-4
1976BO26 Phys.Lett. 64B, 24 (1976) P.F.Bortignon, R.A.Broglia, D.R.Bes, R.Liotta, V.Paar On the Role of the Pairing Modes in the (h9/2 Coupled with 3-) Multiplet of 209Bi NUCLEAR STRUCTURE 209Bi levels calculated S.
doi: 10.1016/0370-2693(76)90347-6
1976DR02 Nucl.Phys. A258, 10 (1976) O.Dragun, D.R.Bes, E.E.Maqueda Two-Nucleon Stripping Reactions Populating Isobaric Multiplets in the Region 40 ≤ A ≤ 56 NUCLEAR STRUCTURE 42,44,46Ti, 42,44,46Sc, 42,44,46Ca, 48Cr, 48V, 48Ti, 50Sc, 50Ca, 50,52V, 50,52Ti, 52Fe, 52Mn, 52Cr, 54Mn, 54Cr, 56Ni, 56,58Co, 56,58Fe; calculated two nucleon stripping ratios populating isobaric multiplets. DWBA calculations.
doi: 10.1016/0375-9474(76)90522-4
1974BR20 Phys.Lett. 50B, 213 (1974) R.A.Broglia, D.R.Bes, B.S.Nilsson Strength of the Multipole Pairing Coupling Constant NUCLEAR REACTIONS 208Pb(t, p), (p, t); calculated σ; 206Pb(d, p), 207,210Pb(p, d); calculated S.
doi: 10.1016/0370-2693(74)90541-3
1974CE02 Nucl.Phys. A228, 216 (1974) A.E.Ceballos, H.J.Erramuspe, A.M.J.Ferrero, M.J.Sametband, J.E.Testoni, D.R.Bes, E.E.Maqueda, R.P.J.Perazzo, S.L.Reich The (d, 6Li) Reaction in the f-p Shell at E = 27.25 MeV NUCLEAR REACTIONS 56Fe(d, 6Li), 58Ni(d, 6Li), E=27.25 MeV; measured σ(θ). 52Cr, 54Fe levels deduced relative S. Enriched targets.
doi: 10.1016/0375-9474(74)90428-X
1974RE10 Nucl.Phys. A233, 105 (1974) Properties of Single-Particle States in the 208Pb Region NUCLEAR STRUCTURE 208Pb; calculated single particle states.
doi: 10.1016/0375-9474(74)90244-9
1973BE06 Nucl.Phys. A199, 193 (1973) D.R.Bes, E.E.Maqueda, R.P.J.Perazzo Shell-Model Analysis of Pairing Excitations in the Region 52 < A < 60
doi: 10.1016/0375-9474(73)90343-6
1973CE02 Nucl.Phys. A208, 617 (1973) A.E.Ceballos, H.J.Erramuspe, A.M.J.Ferrero, M.J.Sametband, J.E.Testoni, D.R.Bes, E.E.Maqueda The (d, 6Li) Reaction on 64,66,68Zn Isotopes at 27.25 MeV NUCLEAR REACTIONS 64,66,68Zn(d, 6Li), E=27.25 MeV; measured σ(θ). 60,62,64Ni levels deduced relative S. Enriched targets.
doi: 10.1016/0375-9474(73)90678-7
1972BE35 Phys.Lett. 40B, 338 (1972) D.R.Bes, R.A.Broglia, B.Nilsson Importance of the Quadrupole Pairing Field in the Jπ = 0+ Vibrations Of Shape Deformed Nuclei NUCLEAR STRUCTURE 234U; calculated levels, 0+ pairing vibrations. Monopole, quadrupole pairing residual interactions.
doi: 10.1016/0370-2693(72)90814-3
1972BE86 Phys.Scr. 6, 239 (1972) D.R.Bes, G.G.Dussel, E.Maqueda, R.P.J.Perazzo Application of the Yrast Concept to the Pairing Degree of Freedom NUCLEAR REACTIONS 48Ca, 50Ti, 52Cr, 54Fe(3He, p); 60,62,64Ni, 64,66,68,70Zn(p, t); 64,66,68Zn, 56,58Fe(t, p); calculated σ.
doi: 10.1088/0031-8949/6/5-6/005
1972CA19 Phys.Lett. 40B, 333 (1972) R.F.Casten, E.R.Flynn, J.D.Garrett, O.Hansen, T.J.Mulligan, D.R.Bes, R.A.Broglia, B.Nilsson Search for (t, p) Transitions to Excited 0+ States in the Actinide Region NUCLEAR REACTIONS 230,232Th, 234,236,238U(t, p), E=15-20 MeV; measured σ(E;Ep, θ). 238U(p, t), E=20 MeV; measured σ(Et, θ). 232Th, 234Th, 234,236,238U deduced no 0+ excited state strength.
doi: 10.1016/0370-2693(72)90813-1
1972DU04 Nucl.Phys. A183, 298 (1972) G.G.Dussel, R.P.J.Perazzo, D.R.Bes Collective Treatment of the Pairing Hamiltonian (III). Numerical Solutions for the T = 1 Case
doi: 10.1016/0375-9474(72)90661-6
1971BE27 Phys.Rev. C3, 2349 (1971) Effect of the Multipole Pairing and Particle-Hole Fields in the Particle-Vibration Coupling of 209Pb. I NUCLEAR STRUCTURE 209Pb; calculated levels, B(EL). Particle-vibration- coupling formalism.
doi: 10.1103/PhysRevC.3.2349
1971BE28 Phys.Rev. C3, 2389 (1971) Effective Operators and the Analysis of Single-Nucleon Transfer Reactions on Closed-Shell Nuclei NUCLEAR STRUCTURE 207,209Pb; calculated levels, S for 208Pb(p, d), (d, p). Particle-vibration-coupling model.
doi: 10.1103/PhysRevC.3.2389
1971BR48 Phys.Lett. 37B, 257 (1971) Effective Interaction between the Jπ = 2+ Two-Phonons States in 208Pb. Evidence for the Existence of the Isovector Quadrupole Mode NUCLEAR STRUCTURE 208Pb levels deduced effective interaction, existence of isovector quadrupole mode.
doi: 10.1016/0370-2693(71)90012-8
1971BR49 Phys.Lett. 37B, 159 (1971) Diagrammatic Perturbation Treatment of the Effective Interaction between Two-Phonon States in Closed Shell Nuclei: the Jπ = 0+ States in 208Pb NUCLEAR STRUCTURE 208Pb; calculated levels, coupling constants, B(EL).
doi: 10.1016/0370-2693(71)90040-2
1971BR51 Phys.Lett. 36B, 541 (1971) R.A.Broglia, S.Landowne, V.Paar, B.Nilsson, D.R.Bes, E.E.Flynn Coupling between Inelastic and Pair Transfer Degrees of Freedom. The 208Pb(t, p)210Pb(3-) Reaction Analyzed in the Coupled Channel Born Approximation NUCLEAR REACTIONS 208Pb(t, p), E not given; calculated σ(θ). Coupled-channel Born approximation.
doi: 10.1016/0370-2693(71)90084-0
1970TA15 Phys.Rev.Lett. 25, 1507 (1970) T.Tamura, D.R.Bes, R.A.Broglia, S.Landowne Coupled-Channel Born-Approximation Calculation of Two-Nucleon Transfer Reactions in Deformed Nuclei NUCLEAR REACTIONS 176Yb(p, t), E not given; measured nothing; analyzed σ(θ). Coupled-channel Born approximation.
doi: 10.1103/PhysRevLett.25.1507
1969BE35 Nucl.Phys. A135, 1 (1969) Phenomenological Treatment of Anharmonic Effects in Cd Isotopes NUCLEAR STRUCTURE 109,110,111,112,113,114,115,116Cd; calculated levels, S, B(E2). Anharmonic effects.
doi: 10.1016/0375-9474(69)90143-2
1969BE36 Nucl.Phys. A135, 25 (1969) Microscopic Treatment of Anharmonic Effects in Cd Isotopes NUCLEAR STRUCTURE 110,112,114,116Cd; calculated levels, quadrupole moment. Anharmonic parameters.
doi: 10.1016/0375-9474(69)90144-4
1968BE08 Phys.Rev. 166, 1045 (1968) D.R.Bes, S.Landowne, M.A.J.Mariscotti Deviations from the I(I+1) Law in Deformed Nuclei
doi: 10.1103/PhysRev.166.1045
1966BE32 Nucl.Phys. 86, 581 (1966) The γ-Vibrations in Odd-Mass Rare-Earth Nuclei
doi: 10.1016/0029-5582(66)90499-8
1965BE40 Nucl.Phys. 65, 1 (1965) D.R.Bes, P.Federman, E.Maqueda, A.Zuker Properties of the γ-Vibrational State NUCLEAR STRUCTURE 150Nd, 152,154Sm, 154,156,158,160Gd, 156,158,160,162,164Dy, 162,164,166,168,170Er, 170,172,174,176Yb, 176,178,180Hf, 182,184,186W, 186Os, 228,230,232,234Th, 230,232,234,236,238U, 238,240,242Pu, 242,244,246,248Cm, 248,250,252,254Cf, 250,252,254,256Fm; calculated B(E2).
doi: 10.1016/0029-5582(65)90290-7
1958BE01 Nucl.Phys. 6, 645 (1958) Levels in Dy161 II. Theoretical NUCLEAR STRUCTURE 161Dy; calculated levels.
doi: 10.1016/0029-5582(58)90218-9
1955MA54 Phys.Rev. 99, 7 (1955) C.A.Mallmann, A.H.W.Aten, Jr., D.R.Bes, C.M.de McMillan Gamma Rays of Tellurium-131 and Tellurium-129
doi: 10.1103/PhysRev.99.7
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