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NSR database version of May 24, 2024.

Search: Author = N.Benouaret

Found 15 matches.

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2024BE09      Nuovo Cim. C 47, 29 (2024)

N.Benouaret, R.Schwengner, R.Massarczyk, T.Shizuma, D.Bemmerer, R.Beyer, A.Junghans, A.Wagner

Dipole excitations in open shell nuclides near the neutron threshold energy from (γ, γ') experiments: The case of Ge isotopes

NUCLEAR REACTIONS 70Ge(γ, γ'), E=8.5-14.7 MeV; measured reaction products, Eγ, Iγ; deduced B(E1), the enhancement of dipole strength near the neutron threshold energy or Pygmy Dipole Resonance (PDR). NRF technique, bremsstrahlung produced with electron beams at the linear accelerator ELBE of the Forschungszentrum HZDR (Dresden-Rossendorf).

doi: 10.1393/ncc/i2024-24029-8
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2021SC06      Phys.Rev. C 103, 024312 (2021)

R.Schwengner, R.Massarczyk, M.Scheck, W.Tornow, G.Battaglia, T.Beck, D.Bemmerer, N.Benouaret, R.Beyer, M.Butterling, F.Fiedler, S.W.Finch, C.Fransen, U.Friman-Gayer, A.Frotscher, R.Gonzalez, M.Grieger, A.Hartmann, T.Hensel, E.Hoemann, H.Hoffmann, R.V.F.Janssens, S.Johnson, M.D.Jones, A.R.Junghans, N.Kelly, J.Kleemann, Krishichayan, D.R.Little, F.Ludwig, S.E.Muller, D.O'Donnell, O.Papst, E.Pirovano, J.Sinclair, M.P.Takacs, S.Turkat, S.Urlass, A.Wagner, V.Werner, O.Wieland, J.Wilhelmy

Electric and magnetic dipole strength in 66Zn

NUCLEAR REACTIONS 66Zn(γ, γ'), (polarized γ, γ'), E=7.5, 13.4, MeV unpolarized bremsstrahlung from γELBE facility, and E=4.3, 4.4, 4.55, 4.7, 4.85, 5.0, 5.15, 5.3, 5.45, 5.6, 5.75, 5.9, 6.1, 6.3, 6.5, 6.7, 6.9, 7.1, 7.3, 7.5, 7.7, 7.9, 8.15, 8.4, 8.65, 8.9, 9.15, 9.4, 9.65, 9.9 MeV quasimonoenergetic and linearly polarized photon beams from HIγS facility; measured Eγ, Iγ, γγ(θ), γ(linear polarization) using four escape-suppressed HPGe detectors at γELBE and using two HPGe detectors at HIγS. 66Zn; deduced 128 J=1 levels up to 11.02 MeV excitation, pygmy dipole resonances (PDR), J, π, energy-integrated scattering σ, Γ02/Γ, photoabsorption σ, photon strength functions, B(M1). Comparison of measured photoabsorption cross sections with experimental values in 54Fe(γ, γ'), and with calculations using TALYS code as in the 2019 library, and from the three Lorentz functions (TLO). Comparison of B(M1) strengths with shell-model calculations using the jj44c Hamiltonian. Comparison of deduced photon strength functions with those from 64Ni(p, p'γ).

doi: 10.1103/PhysRevC.103.024312
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0269.


2019TA11      Nucl.Phys. A987, 79 (2019)

M.Tamkas, E.Aciksoz, J.Isaak, T.Beck, N.Benouaret, M.Bhike, I.Boztosun, A.Durusoy, U.Gayer, Krishichayan, B.Loher, N.Pietralla, D.Savran, W.Tornow, V.Werner, A.Zilges, M.Zweidinger

Low-lying dipole strength in the well-deformed nucleus 156Gd

NUCLEAR REACTIONS 156Gd(γ, γ), E=7.1 MeV[bremsstrahlung end-point energy]; measured Eγ, Iγ using three HPGe with BGO active anti-Compton shield; deduced γ-ray energy spectra; 156Gd(polarized γ, γ), E=2.9-6.2 MeV[linearly polarized quasi-monochromatical photon beams from laser Compton backscattering]; measured Eγ, Iγ, γγ-coin at High Intensity γ-ray Source (HIγS) at TUNL; deduced γ-ray measured and deconvoluted energy spectra, asymmetries for observed single states and average asymmetry for each beam energy setting using deconvoluted spectra, expectation B(E1), B(M1) transition values; deduced, extracted photo absorption σγ vs E* and its decomposition to the gs and to the first excited state.

doi: 10.1016/j.nuclphysa.2019.03.014
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2017SM02      Phys.Rev. C 95, 054301 (2017)

N.A.Smirnova, B.Blank, B.A.Brown, W.A.Richter, N.Benouaret, Y.H.Lam

Isospin mixing from β-delayed proton emission

RADIOACTIVITY 44Cr, 48Fe(β+), (β+p); calculated half-lives of precursors, excitation energies and electromagnetic widths of the IAS in daughter nuclei, single-particle proton widths and shell-model spectroscopic factors; deduced isospin mixing in the IAS using experimental β-delayed proton to γ-emission branching ratios. 44V, 44Sc, 48Mn, 48V; calculated levels, J, π, and compared with experimental data. Shell model calculations using cdGX1A and cdKB3G effective interactions.

doi: 10.1103/PhysRevC.95.054301
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2016BE31      J.Phys.(London) G43, 115101 (2016)

N.Benouaret, J.Beller, H.Pai, N.Pietralla, V.Yu.Ponomarev, C.Romig, L.Schnorrenberger, M.Zweidinger, M.Scheck, J.Isaak

Dipole response of the odd-proton nucleus 205Tl up to the neutron-separation energy

NUCLEAR REACTIONS 203,205Tl(γ, γ'), E<8 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, σ(θ), resonance parameters, B(M1), B(E1). The quasiparticle phonon model calculations.

doi: 10.1088/0954-3899/43/11/115101
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016SM01      Phys.Rev. C 93, 044305 (2016)

N.A.Smirnova, B.Blank, B.A.Brown, W.A.Richter, N.Benouaret, Y.H.Lam

Theoretical analysis of isospin mixing with the β decay of 56Zn

RADIOACTIVITY 56Zn(β+), (β+p); calculated half-life of Tz=-2 56Zn ground state, Tz=-1 energy levels and Jπ and lowest 0+ states in 56Cu, T=2 IAS in 56Cu, theoretical Iβ of the IAS, levels and Jπ of 55Ni, proton and gamma widths, isospin mixing in the IAS, spectroscopic factor for proton emission. Explained highly retarded proton decay of the IAS in 56Cu. Shell-model calculations using isospin nonconserving Hamiltonians based on the cdGX1A and cdKB3G interactions. Comparison with available experimental data.

doi: 10.1103/PhysRevC.93.044305
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2014BE09      Acta Phys.Pol. B45, 193 (2014)

N.Benouaret, J.Beller, J.Isaak, J.H.Kelley, H.Pai, N.Pietralla, V.Yu.Ponomarev, R.Raut, C.Romig, G.Rusev, D.Savran, M.Scheck, L.Schnorrenberger, K.Sonnabend, A.P.Tonchev, W.Tornow, H.R.Weller, M.Zweidinger

Photoexcitation of the Stable Tl Isotopes Below the Neutron Separation Energy

NUCLEAR REACTIONS 203,205Tl(γ, γ'), E<7.5 MeV; measured reaction products, Eγ, Iγ; deduced dipole strength distribution. Comparison with available data.

doi: 10.5506/APhysPolB.45.193
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2013PA38      Phys.Rev. C 88, 054316 (2013)

H.Pai, J.Beller, N.Benouaret, J.Enders, T.Hartmann, O.Karg, P.von Neumann-Cosel, N.Pietralla, V.Yu.Ponomarev, C.Romig, M.Scheck, L.Schnorrenberger, S.Volz, M.Zweidinger

Low-lying dipole strength in the N=28 shell-closure nucleus 52Cr

NUCLEAR REACTIONS 52Cr(γ, γ'), E<9.9 MeV; measured Eγ, Iγ, γ(θ), integrated cross sections using bremsstrahlung beam at the superconducting Darmstadt linear electron accelerator S-DALINAC. 52Cr; deduced levels, PDR, J, π, Γ0, B(E1), B(M1), reduced transition widths. Comparison with microscopic QPM calculations.

doi: 10.1103/PhysRevC.88.054316
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Data from this article have been entered in the XUNDL database. For more information, click here.


2011BE54      Fizika(Zagreb) B 20, 203 (2011)

N.Benouaret, R.Schwengner, G.Rusev, F.Donau, R.Beyer, M.Erhard, E.Grosse, A.R.Junghans, K.Kosev, C.Nair, K.D.Schilling, A.Wagner

Investigation of dipole excitations below the giant dipole resonance in 89Y using the ELBE facility

NUCLEAR REACTIONS 89Y(γ, γ'), E<13.2 MeV; measured Eγ, Iγ; deduced energy levels, resolved giant dipole resonance strength, σ, level densities, branching ratios. Comparison with available data, QRPA calculations.


2009BE03      Phys.Rev. C 79, 014303 (2009)

N.Benouaret, R.Schwengner, G.Rusev, F.Donau, R.Beyer, M.Erhard, E.Grosse, A.R.Junghans, K.Kosev, C.Nair, K.D.Schilling, A.Wagner, N.Bendjaballah

Dipole strength in 89Y up to the neutron-separation energy

NUCLEAR REACTIONS 89Y(γ, γ'), E=3-13 MeV; measured Eγ, Iγ, σ, widths, angular distributions, level densities. 89Y; deduced levels. Comparison with quasiparticle-random-phase approximation predictions.

NUCLEAR REACTIONS 88Sr, 90Zr(γ, X), E=5-18 MeV; analyzed data for photoabsorption cross sections. Comparison with quasiparticle-random-phase approximation predictions.

doi: 10.1103/PhysRevC.79.014303
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0140. Data from this article have been entered in the XUNDL database. For more information, click here.


2008SC20      Phys.Rev. C 78, 064314 (2008)

R.Schwengner, G.Rusev, N.Tsoneva, N.Benouaret, R.Beyer, M.Erhard, E.Grosse, A.R.Junghans, J.Klug, K.Kosev, H.Lenske, C.Nair, K.D.Schilling, A.Wagner

Pygmy dipole strength in 90Zr

NUCLEAR REACTIONS 90Zr(γ, γ'), E=7.9, 9.0, 13.2 MeV; measured Eγ, Iγ.σ, angular distributions, widths; deduced levels, J, π. Comparisons with calculations for 88Sr, 90Zr.

doi: 10.1103/PhysRevC.78.064314
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0142. Data from this article have been entered in the XUNDL database. For more information, click here.


2007SC36      Phys.Rev. C 76, 034321 (2007)

R.Schwengner, G.Rusev, N.Benouaret, R.Beyer, M.Erhard, E.Grosse, A.R.Junghans, J.Klug, K.Kosev, L.Kostov, C.Nair, N.Nankov, K.D.Schilling, A.Wagner

Dipole response of 88Sr up to the neutron-separation energy

NUCLEAR REACTIONS 88Sr(γ, γ'), E=9.0, 13.2, 16.0 MeV; measured Eγ, Iγ and angular distributions. 88Sr deduced levels, J, π, photon scattering and photoabsortption cross sections.

doi: 10.1103/PhysRevC.76.034321
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0141. Data from this article have been entered in the XUNDL database. For more information, click here.


2007SC39      Nucl.Phys. A788, 331c (2007)

R.Schwengner, N.Benouaret, R.Beyer, F.Donau, M.Erhard, S.Frauendorf, E.Grosse, A.R.Junghans, J.Klug, K.Kosev, C.Nair, N.Nankov, G.Rusev, K.D.Schilling, A.Wagner

Dipole-strength distributions up to the particle-separation energies and photodissociation of Mo isotopes

NUCLEAR REACTIONS 92,98,100Mo(γ, γ'), E≈13.2 MeV bremsstrahlung; measured Eγ, Iγ, angular distributions, photoabsorption σ. 92Mo(γ, n), (γ, p), (γ, α), E≈10-16.5 MeV bremsstrahlung; measured activation yields and compared with QRPA calculations.

doi: 10.1016/j.nuclphysa.2007.01.062
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2006SC22      Phys.Rev. C 74, 034309 (2006)

R.Schwengner, D.L.Balabanski, G.Neyens, N.Benouaret, D.Borremans, N.Coulier, M.De Rydt, G.Georgiev, S.Mallion, G.Rainovski, G.Rusev, S.Teughels, K.Vyvey

Quadrupole moment of the 8+ yrast state in 84Kr

NUCLEAR REACTIONS 82Se(α, 2n), E=24 MeV; measured delayed Eγ, Iγ(θ, H, t) following implantation in Cd. 84Kr deduced isomeric state quadrupole moment. Quadrupole systematics in neighboring nuclides compared.

doi: 10.1103/PhysRevC.74.034309
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Data from this article have been entered in the XUNDL database. For more information, click here.


1997PE26      Z.Phys. A359, 373 (1997)

N.Perrin, C.Bourgeois, A.Korichi, M.Pautrat, H.Sergolle, N.Barre, C.Vieu, N.Benouaret, J.Vanhorenbeeck

g Factor Measurements of High Spin Isomeric States in 187,189,191Au

NUCLEAR REACTIONS 181Ta(12C, 4n), E=70 MeV; 172,176Yb(19F, 4n), E=88 MeV; measured Eγ, Iγ(t, H), γγ-coin. 187,189,191Au deduced high-spin levels, isomeric states T1/2, g-factors, configurations.

doi: 10.1007/s002180050416
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Data from this article have been entered in the XUNDL database. For more information, click here.


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