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NSR database version of May 20, 2024.

Search: Author = G.Bonsignori

Found 23 matches.

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2001GA49      Phys.Rev. C64, 034304 (2001)

E.Galindo, M.Hausmann, A.Jungclaus, D.Kast, K.P.Lieb, G.A.Muller, O.Yordanov, S.Brant, D.Vretenar, A.Algora, F.Brandolini, G.de Angelis, M.De Poli, C.Fahlander, A.Gadea, T.Martinez, D.R.Napoli, A.Dewald, R.Peusquens, H.Tiesler, M.Gorska, H.Grawe, P.G.Bizzeti, P.Sona, G.Bonsignori

Lifetime Measurements of High-Spin States in 101Ag and Their Interpretation in the Interacting Boson Fermion Plus Broken Pair Model

NUCLEAR REACTIONS 58Ni(50Cr, 3pα), E=200-205 MeV; measured Eγ, Iγ, γγ-coin, DSA. 101Ag deduced high-spin levels T1/2, B(E2), B(M1), B(E1). GASP array, recoil-distance and Doppler-shift attenuation methods. Interacting boson fermion plus broken pair model.

doi: 10.1103/PhysRevC.64.034304
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Data from this article have been entered in the XUNDL database. For more information, click here.

1999DE22      Phys.Rev. C60, 014313 (1999)

G.de Angelis, C.Fahlander, D.Vretenar, S.Brant, A.Gadea, A.Algora, Y.Li, Q.Pan, E.Farnea, D.Bazzacco, G.Bonsignori, F.Brandolini, M.De Poli, D.De Acuna, S.Lunardi, G.Maron, D.R.Napoli, P.Pavan, C.M.Petrache, C.Rossi Alvarez, P.Spolaore, G.Vedovato

Excited States in 104Cd Described with the Interacting Boson Model Plus Broken Pairs

NUCLEAR REACTIONS 50Cr(58Ni, 4p), E=220 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 104Cd deduced high-spin levels, J, π, configurations. Gasp array. Interacting boson-fermion model plus broken pair.

doi: 10.1103/PhysRevC.60.014313
Citations: PlumX Metrics

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

1998VR01      Phys.Rev. C57, 675 (1998)

D.Vretenar, S.Brant, G.Bonsignori, L.Corradini, C.M.Petrache

Interacting Boson Model Plus Broken-Pair Description of High-Spin Dipole Bands

NUCLEAR STRUCTURE 136Nd; calculated high-spin levels, J, π, dipole bands. Interacting boson model with broken pairs.

doi: 10.1103/PhysRevC.57.675
Citations: PlumX Metrics

1997PE06      Nucl.Phys. A617, 228 (1997)

C.M.Petrache, R.Venturelli, D.Vretenar, D.Bazzacco, G.Bonsignori, S.Brant, S.Lunardi, M.A.Rizzutto, C.Rossi Alvarez, G.de Angelis, M.De Poli, D.R.Napoli

High-Spin States in 137Nd: A large variety of collective rotations

NUCLEAR REACTIONS 110Pd(30Si, 3n), E=125 MeV; 123Sb(19F, 5n), E=97 MeV; measured γγ-coin, DCO ratios. 137Nd deduced high-spin levels, J, π, γ-multipolarity, configurations. Interacting boson-fermion model with broken pairs.

doi: 10.1016/S0375-9474(97)00042-0
Citations: PlumX Metrics

1996CA10      Phys.Rev. C53, 1618 (1996)

S.Cacciamani, G.Bonsignori, F.Iachello, D.Vretenar

Broken Pairs in the Interacting Boson Model: Projection of spurious states

NUCLEAR STRUCTURE 116Sn, 82Sr; calculated levels, B(λ). Interacting boson model, broken pairs, spurious states projection.

doi: 10.1103/PhysRevC.53.1618
Citations: PlumX Metrics

1996RO04      Phys.Rev. C54, 57 (1996)

C.Rossi Alvarez, D.Vretenar, Zs.Podolyak, D.Bazzacco, G.Bonsignori, F.Brandolini, S.Brant, G.de Angelis, M.De Poli, M.Ionescu-Bujor, Y.Li, S.Lunardi, N.H.Medina, C.M.Petrache

Excited States in 139Sm Described with the Interacting Boson Model Plus Broken Pairs

NUCLEAR REACTIONS 110Pd(34S, 5n), E=150, 165 MeV; measured γγ-coin, DCO ratios, γγ(θ), B(E2), B(M1). 139Sm deduced high-spin levels, J, π, Eγ, Iγ, ICC, T1/2, quadrupole moments. Interacting boson model plus broken pairs.

doi: 10.1103/PhysRevC.54.57
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Data from this article have been entered in the XUNDL database. For more information, click here.

1995PE10      Z.Phys. A352, 5 (1995)

C.M.Petrache, S.Lunardi, D.Bazzacco, M.A.Rizzuto, C.Rossi-Alvarez, R.Venturelli, F.Brandolini, N.H.Medina, G.de Angelis, G.Bonsignori, M.Savoia, D.Vretenar

Dipole Rotational Band in 137Nd

NUCLEAR REACTIONS 110Pd(30Si, 3n), E=125 MeV; 123Sb(19F, 5n), E=97 MeV; measured γγ-coin, DSA, Eγ, Iγ. 137Nd deduced high-spin levels, J, π, T1/2, B(λ), configuration, Iγ.

doi: 10.1007/BF01292752
Citations: PlumX Metrics

1995VR02      Z.Phys. A351, 289 (1995)

D.Vretenar, G.Bonsignori, M.Savoia

One and Three Fermion States in the Interacting Boson Fermion Model: High-spin states in 191,193Hg

NUCLEAR STRUCTURE 191,192Hg; calculated high-spin states. Interacting boson fermion model, one broken pair.

doi: 10.1007/BF01290910
Citations: PlumX Metrics

1994DE11      Phys.Rev. C49, 2990 (1994)

G.de Angelis, M.A.Cardona, M.De Poli, S.Lunardi, D.Bazzacco, F.Brandolini, D.Vretenar, G.Bonsignori, M.Savoia, R.Wyss, F.Terrasi, V.Roca

Broken Pairs and Evolution of Collectivity in the A ≈ 140 Mass Region: High spin states of the 60138Nd78 Nucleus

NUCLEAR REACTIONS 121Sb(19F, xn), E=75 MeV; measured Eγ, Iγ, γγ(θ), DCO ratios; deduced evolution of collectivity in the A=140 mass region. 138Nd deduced levels, J, π. Cranking model, interacting boson model, broken pairs.

doi: 10.1103/PhysRevC.49.2990
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1993CH41      Phys.Rev. C48, 2607 (1993)

A.A.Chishti, P.Chowdhury, D.J.Blumenthal, P.J.Ennis, C.J.Lister, Ch.Winter, D.Vretenar, G.Bonsignori, M.Savoia

Collectivity in Light Zirconium Isotopes: Evolution with neutron number and angular momentum

NUCLEAR REACTIONS 58Ni(29Si, n2p), E=110 MeV; measured Eγ, Iγ, DCO ratios. 58Ni(32S, 2pα), E=110 MeV; measured Iγ(θ). 54Fe(33S, n2p), E=105 MeV; analyzed data. 58Ni(28Si, 2n2p), E not given; measured recoil distance. 84Zr deduced levels, J, π, band structure. 82Zr levels deduced T1/2. Models comparison.

NUCLEAR STRUCTURE 86,84,82Zr; calculated levels, g factors, B(λ). Interacting boson model, collective core inclusion.

doi: 10.1103/PhysRevC.48.2607
Citations: PlumX Metrics

1993VR01      Phys.Rev. C47, 2019 (1993)

D.Vretenar, G.Bonsignori, M.Savoia

One and Two Broken Pairs in the Interacting Boson Model: High-spin states in 190,192,194Hg

NUCLEAR STRUCTURE 190,192,194Hg; calculated levels, B(λ). Interacting boson model, one-, two-broken pairs.

doi: 10.1103/PhysRevC.47.2019
Citations: PlumX Metrics

1991MO08      Nuovo Cim. 104A, 33 (1991)

F.Monti, G.Bonsignori, M.Savoia, Y.K.Gambhir

Truncation of the Valence Space in the Shell Model and Effective Hamiltonian

NUCLEAR STRUCTURE 104,103Sn, 91Nb, 92Mo, 136Xe, 138Ba; calculated levels. Shell model, effective Hamiltonian, valence space truncation.

doi: 10.1007/BF02822265
Citations: PlumX Metrics

1991RA01      Phys.Rev. C43, 521 (1991)

S.Raman, T.A.Walkiewicz, S.Kahane, E.T.Jurney, J.Sa, Z.Gacsi, J.L.Weil, K.Allaart, G.Bonsignori, J.F.Shriner, Jr.

Nearly Complete Level Scheme of 116Sn Below 4.3 MeV

NUCLEAR REACTIONS 115Sn(n, γ), E=thermal; 116Sn(n, n'γ), E ≤ 4.5 MeV; measured Eγ, Iγ, γ(θ) vs E. 116Sn deduced levels, J, π, neutron separation energy.

doi: 10.1103/PhysRevC.43.521
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14169.

1990MO05      Phys.Rev. C41, 1311 (1990)

F.Monti, G.Bonsignori, M.Savoia, Y.K.Gambhir

Many-Body Correlations and the Truncation of the Shell-Model Hilbert Space

doi: 10.1103/PhysRevC.41.1311
Citations: PlumX Metrics

1988RA09      Phys.Rev. C37, 1203 (1988)

S.Raman, T.A.Walkiewicz, L.G.Multhauf, K.G.Tirsell, G.Bonsignori, K.Allaart

Decays of 118In, 120In, and 122In Isomers to Levels in 118Sn, 120Sn, and 122Sn

RADIOACTIVITY 118,120,122In(β-) [from 118,120,122Sn(n, p), E=14 MeV]; measured Eγ, Iγ. 118,120,122Sn deduced levels, γ transitions. Broken pair model.

NUCLEAR STRUCTURE 118,120,122Sn; calculated levels. Broken pair model.

doi: 10.1103/PhysRevC.37.1203
Citations: PlumX Metrics

1986AL20      Nucl.Phys. A458, 412 (1986)

K.Allaart, G.Bonsignori, M.Savoia, V.Paar

Construction of Microscopic Boson States and Their Relevance for IBM-2

NUCLEAR STRUCTURE N=50-82; calculated levels, quadrupole matrix element ratios, d-boson number. Four types of collective fermion states.

doi: 10.1016/0375-9474(86)90043-6
Citations: PlumX Metrics

1985BO01      Nucl.Phys. A432, 389 (1985)

G.Bonsignori, M.Savoia, K.Allaart, A.Van Egmond, G.Te Velde

Spectroscopy of Even Sn Nuclei and Generalized-Seniority Breaking

NUCLEAR STRUCTURE 110,112,114,116,118,120,122,124Sn; calculated single particle energies, occupation probabilities, ground state wave functions, B(E2) ratios, B(λ). Generalized seniority breaking model.

doi: 10.1016/0375-9474(85)90250-7
Citations: PlumX Metrics

1985VA01      Nucl.Phys. A436, 458 (1985)

A.van Egmond, K.Allaart, G.Bonsignori

Microscopic Approach to Magnetic Excitations in IBM-2

NUCLEAR REACTIONS 130,134Ba(e, e'), E not given; calculated form factors. Interacting boson approximation.

NUCLEAR STRUCTURE 130,134Ba; calculated levels, B(λ). Interacting boson approximation.

doi: 10.1016/0375-9474(85)90080-6
Citations: PlumX Metrics

1983AK05      Z.Phys. A313, 213 (1983)

J.N.L.Akkermans, E.Loriaux, K.Allaart, G.Bonsignori

Correlated-Pair Structure in Nuclei and Possible Relation to IBM-2

NUCLEAR STRUCTURE 76,78,80Kr; calculated B(E2). Broken pair model.

doi: 10.1007/BF01417229
Citations: PlumX Metrics

1981BO23      Nuovo Cim. 63A, 411 (1981)

G.Bonsignori, M.Savoia

Number-Conserving Approximation to the Shell Model. The Case of Neutron Excited 0+, 2+ and 4+ States of Even Tin Nuclei

NUCLEAR STRUCTURE 116,118,120,122,124Sn; calculated levels, energy gap, chemical potential; 116Sn calculated quadrupole moment, B(λ). Zero, two, four quasiparticle approximation, number conservation.

doi: 10.1007/BF02772520
Citations: PlumX Metrics

1979BO40      Nuovo Cim. 54A, 165 (1979)

G.Bonsignori, F.Cannata, G.Fratamico, M.Savoia

Nuclear-Structure Effects in a Microscopic Theory for (α, α') Reactions in Even-Even Tin Isotopes

NUCLEAR REACTIONS 116,122Sn(α, α'), E=27 MeV; analyzed σ(θ). Microscopic quasiparticle theory, Woods-Saxon single-particle states.

doi: 10.1007/BF02899786
Citations: PlumX Metrics

1978BO17      Nuovo Cim. 44A, 121 (1978)

G.Bonsignori, M.Savoia

0+, 2+ and 4+ States of Even Tin Isotopes in a Zero-, Two- and Four-Quasi-Particle Tamm-Dancoff Approximation with a Fixed Number of Particles

NUCLEAR STRUCTURE 116,118,120,122,124Sn; calculated levels.

1973BO41      Lett.Nuovo Cim. 8, 182 (1973)

G.Bonsignori, M.Savoia

Projection of the N-Nucleon Component from a Zero-, Two- and Four-Quasi-Particle State. The Case of 116Sn

NUCLEAR STRUCTURE 116Sn; calculated levels.

doi: 10.1007/BF02906229
Citations: PlumX Metrics

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