NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = R.Beyer Found 48 matches. 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
2023DE27 Eur.Phys.J. A 59, 198 (2023) J.Deary, M.Scheck, R.Schwengner, D.O'Donnell, D.Bemmerer, R.Beyer, Th.Hensel, A.R.Junghans, T.Kogler, S.E.Muller, K.Romer, K.Schmidt, S.Turkat, S.Urlass, A.Wagner, M.Bowry, P.Adsley, O.Agar, R.Chapman, F.C.L.Crespi, D.T.Doherty, U.Friman-Gayer, R.-D.Herzberg, J.Isaak, R.V.F.Janssens, T.Kroll, B.Loher, B.S.Nara Singh, P.von Neumann-Cosel, L.Pellegri, E.E.Peters, G.Rainovski, D.Savran, J.F.Smith, M.Spieker, P.G.Thirolf, S.Triambak, W.Tornow, M.Venhart, M.Wiedeking, O.Wieland, S.W.Yates, A.Zilges Photo-response of the N = Z nucleus 24Mg NUCLEAR REACTIONS 24Mg(γ, γ'), E<13 MeV; measured reaction products, Eγ, Iγ; deduced energy-integrated scattering σ, B(M1), B(E1). Comparison with available data. The ELBE accelerator of the Helmholtz-Zentrum Dresden-Rossendorf.
doi: 10.1140/epja/s10050-023-01111-7
2022SC03 Phys.Rev. C 105, 024303 (2022) R.Schwengner, R.Massarczyk, K.Schmidt, K.Zuber, R.Beyer, D.Bemmerer, S.Hammer, A.Hartmann, T.Hensel, H.F.Hoffmann, A.R.Junghans, T.Kogler, S.E.Muller, M.Pichotta, S.Turkat, J.A.B.Turko, S.Urlass, A.Wagner Photoexcitation of 76Ge NUCLEAR REACTIONS 76Ge(γ, γ'), E=7.8, 12.3 MeV bremsstrahlung beam; measured Eγ, Iγ, γ(θ); deduced photoabsorption σ. 76Ge; deduced levels, J, π, photon strength function. Statistical model calculations. HPGe detectors at the γELBE facility of the Helmholtz-Zentrum Dresden-Rossendorf (HZDR). Comparison with previous experimental data.
doi: 10.1103/PhysRevC.105.024303
2022SH39 Phys.Rev. C 106, 044326 (2022) T.Shizuma, S.Endo, A.Kimura, R.Massarczyk, R.Schwengner, R.Beyer, T.Hensel, H.Hoffmann, A.Junghans, K.Romer, S.Turkat, A.Wagner, N.Tsoneva Low-lying dipole strength distribution in 204Pb NUCLEAR REACTIONS 204Pb(γ, γ'), E<10.5 MeV; measured Eγ, Iγ; deduced levels, J, branching ratios, average branching ratios, integrated scattering σ(E), photoabsorption σ(E), B(E1) strength distribution. Comparison to other experimental results and self-consistent energy density-functional theory+three-phonon quasiparticle-phonon model (EDF+QPM) calculations. Bremsstrahlung facility γELBE of the Helmholtz-Zentrum Dresden-Rossendorf.
doi: 10.1103/PhysRevC.106.044326
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
2020SC07 Phys.Rev. C 101, 064303 (2020) R.Schwengner, R.Massarczyk, R.Beyer, M.Bhike, B.A.Brown, Krishichayan, K.Sieja, W.Tornow, D.Bemmerer, M.Butterling, V.Derya, M.Dietz, F.Fiedler, U.Friman-Gayer, A.Frotscher, M.Grieger, A.Hartmann, A.R.Junghans, T.Kogler, F.Ludwig, B.Lutz, H.Pai, T.Szucs, M.P.Takacs, A.Wagner Electric and magnetic dipole strength in 54Fe NUCLEAR REACTIONS 54Fe(polarized γ, γ'), E=4.3-13.0 MeV; measured Eγ, Iγ, γ(θ), γ(polarization asymmetry), and integrated scattering cross sections, absolute photoabsorption σ(E) using HPGe detectors at the γELBE facility of the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), and at the HIγS facility at TUNL. 54Fe; deduced levels, J, π, B(E1), B(M1). Comparison with shell-model predictions.
doi: 10.1103/PhysRevC.101.064303
2020WI09 Phys.Rev. C 102, 044327 (2020) J.Wilhelmy, M.Muscher, G.Rusev, R.Schwengner, R.Beyer, M.Bhike, P.Erbacher, F.Fiedler, U.Friman-Gayer, J.Glorius, R.Greifenhagen, S.Hammer, T.Hensel, J.Isaak, A.R.Junghans, Krishichayan, B.Loher, S.E.Muller, N.Pietralla, S.Reinicke, D.Savran, P.Scholz, K.Sonnabend, T.Szucs, M.Tamkas, W.Tornow, S.Turkat, A.Wagner, A.Zilges Dipole response of 87Rb and its impact on the 86Rb (n, γ) 87Rb cross section NUCLEAR REACTIONS 87Rb(γ, γ'), E=8.2, 13.2 MeV bremsstrahlung beam; measured Eγ, Iγ, γ(θ) using four HPGe detectors at the γ-ELBE facility in Dresden. 87Rb(polarized γ, γ'), E=5.10, 5.30, 5.50, 5.75, 6.00, 6.25, 6.50, 6.75, 7.00, 7.25, 7.50, 7.80, 8.10, 8.40, 8.70, 9.00, 9.30, 9.60 MeV; measured Eγ, Iγ, azimuthal asymmetry using four LaBr3:Ce scintillators and four HPGe detectors at the HIγS facility of TUNL; deduced energy-integrated σ(excitation energy), γ-ray sum spectra, photoabsorption σ(E), E1-photon strength functions (PSFs), nuclear level densities (NLDs), Thomas-Reiche-Kuhn (TRK) sum rule. Comparison with QRPA calculations for PSFs, and microscopic Hartree-Fock-Bogolyubov calculations with Skyrme and Gogny forces for NLDs. 87Rb; deduced 256 discrete levels from 845 to 10005 keV, J, π, gΓ02/Γ, γ-ray branching ratios for selected levels, as listed in supplemental material. 86Rb(n, γ), kT=5-100 keV; deduced Maxwellian cross sections (MACSs) for different PSF and NLD inputs, and compared to data in KADoNiS database.
doi: 10.1103/PhysRevC.102.044327
2019KO05 Phys.Rev. C 99, 024604 (2019) T.Kogler, A.R.Junghans, R.Beyer, M.Dietz, Ch.E.Dullmann, K.Eberhardt, Ch.Lorenz, S.E.Muller, R.Nolte, T.P.Reinhardt, K.Schmidt, J.Runke, R.Schwengner, M.Takacs, A.Vascon, A.Wagner Fast-neutron-induced fission cross section of 242Pu measured at the neutron time-of-flight facility ELBE NUCLEAR REACTIONS 242Pu(n, F), E=0.5-10 MeV; measured fission fragments, neutron time of flight, σ(E) relative to 235U(n, F), σ(E) using parallel plate fission ionization chamber at nELBE facility at Helmholtz-Zentrum Dresden-Rossendorf (HZDR); deduced energy to time-of-flight-correlation, correction factor for neutron scattering, ratio of neutron-induced and SF rate with and without correction for neutron scattering. GEANT4, MCNP6, and FLUKA2011 for neutron transport simulations. Comparison with previous measurements in EXFOR database, evaluated data in ENDF/B-VIII.0 and JEFF-3.3, and theoretical calculations using TALYS-1.8 and EMPIRE-3.2. RADIOACTIVITY 242Pu(SF); analyzed data on partial half-life for SF decay; deduced T1/2. Comparison with previous experimental values, and evaluated data.
doi: 10.1103/PhysRevC.99.024604
2019PI05 Phys.Rev. C 99, 024601 (2019) E.Pirovano, R.Beyer, M.Dietz, A.R.Junghans, S.E.Muller, R.Nolte, M.Nyman, A.J.M.Plompen, M.Roder, T.Szucs, M.P.Takacs Cross section and neutron angular distribution measurements of neutron scattering on natural iron NUCLEAR REACTIONS Fe(n, n), (n, n'), E=2-6 MeV; measured E(n), I(n), time of flight, neutron angular distributions, differential σ(θ, E), and σ(E) using liquid organic scintillator array for neutron detection at GELINA and nELBE facilities. 56Fe(n, n'), E=2-6 MeV; measured differential σ(θ, E) for the first excited state of 56Fe. Comparison with previous experimental results, and ENDF/B-VIII evaluation; compiled a list of previous experiments for Fe(n, n), 56Fe(n, n'), E=2-6 MeV retrieved from the EXFOR database.
doi: 10.1103/PhysRevC.99.024601
2018BE07 Eur.Phys.J. A 54, 58 (2018) R.Beyer, M.Dietz, D.Bemmerer, A.R.Junghans, T.Kogler, R.Massarczyk, S.Muller, K.Schmidt, R.Schwengner, T.Szucs, M.P.Takacs, A.Wagner The γ-ray angular distribution in fast neutron inelastic scattering from iron NUCLEAR REACTIONS 54,56Fe(n, n'), E=0.1-10 MeV; measured Eγ, Iγ(θ) of the four lowest excited states of 56Fe and on of 54Fe using five FPGe and five LaBr3 scintillators; deduced σ(θ), σ; compared with other data and data libraries; calculated Legendre polynomial coefficients fitting σ(θ) data.
doi: 10.1140/epja/i2018-12492-7
2018BE21 Eur.Phys.J. A 54, 81 (2018) R.Beyer, A.R.Junghans, P.Schillebeeckx, I.Sirakov, T.-Y.Song, D.Bemmerer, R.Capote, A.Ferrari, A.Hartmann, R.Hannaske, J.Heyse, H.I.Kim, J.W.Kim, T.Kogler, C.W.Lee, Yo.-O.Lee, R.Massarczyk, S.E.Muller, T.P.Reinhardt, M.Roder, K.Schmidt, R.Schwengner, T.Szucs, M.P.Takacs, A.Wagner, L.Wagner, S.-C.Yang The neutron transmission of natFe, 197Au and natW NUCLEAR REACTIONS 197Au, W(n, x), E=0.025-0.17 MeV; calculated transmission correction factor using MCNP. Fe, 197Au, W(n, x), E=0.15-8 MeV; measured reaction products using nELBE neutron ToF; deduced σ. Compared with other data (in a wider energy interval) and published calculations using optical model.
doi: 10.1140/epja/i2018-12505-7
2018SH40 Phys.Rev. C 98, 064317 (2018) T.Shizuma, N.Iwamoto, A.Makinaga, R.Massarczyk, R.Schwengner, R.Beyer, D.Bemmerer, M.Dietz, A.Junghans, T.Kogler, F.Ludwig, S.Reinicke, S.Schulz, S.Urlass, A.Wagner Dipole strength distribution in 206Pb for the evaluation of the neutron capture cross section of 205Pb NUCLEAR REACTIONS 206Pb(γ, γ'), E(electron beam)=10.5 MeV; measured Eγ, Iγ, γ(θ), integrated scattering cross sections using HPGe detectors for γ detection at γELBE facility of Helmholtz-Zentrum Dresden-Rossendorf (HZDR). 206Pb; deduced levels, J, Γ02/Γ, branching ratios, dipole strength function, and GDR parameters. Comparison with previous experimental values. 205Pb(n, γ), E=1 keV-5 MeV; calculated σ(E) using the PSF deduced from the photonuclear data, and compared with the evaluation of TENDL-2015 and JEFF-3.2. 205Pb; calculated yield in subcritical accelerator driven reactor using statistical code CCONE. Systematics of photoabsorption σ(E) and dipole strength functions in 206Pb and 208Pb.
doi: 10.1103/PhysRevC.98.064317
2017PI04 Phys.Rev. C 95, 024601 (2017) E.Pirovano, R.Beyer, A.R.Junghans, N.Nankov, R.Nolte, M.Nyman, A.J.M.Plompen Backward-forward reaction asymmetry of neutron elastic scattering on deuterium NUCLEAR REACTIONS 2H, C(n, n), E=0.2-2 MeV; measured neutron spectra by time-of-flight method, σ(θ, E) at nELBE-Dresden neutron time-of-flight facility. CD2 target for 2H. MCNP simulations. Comparison with the evaluated nuclear data libraries CENDL-3.1, JEFF-3.2, JENDL-4.0 and ENDF/B-VII.1, with previous experimental data, and with theoretical calculations.
doi: 10.1103/PhysRevC.95.024601
2016MA04 Phys.Rev. C 93, 014301 (2016) R.Massarczyk, G.Schramm, T.Belgya, R.Schwengner, R.Beyer, D.Bemmerer, Z.Elekes, E.Grosse, R.Hannaske, A.R.Junghans, Z.Kis, T.Kogler, C.Lorenz, K.Schmidt, L.Szentmiklosi, A.Wagner, J.L.Weil Role of electric and magnetic dipole strength functions in the 114Cd (γ, γ') and 113Cd (n, γ) reactions NUCLEAR REACTIONS 114Cd(γ, γ'), E<10 MeV; measured Eγ, Iγ, γ(θ), photoabsorption σ(E) at bremsstrahlung facility γELBE at Dresden. 113Cd(n, γ), E=cold neutrons; measured Eγ, Iγ at Budapest reactor facility; deduced electric and magnetic dipole γ-strength function below S(n). Triple Lorentzian model (TLO). Comparison with statistical model calculations using γDEX code using RIPL3 M1 and triple Gaussian models.
doi: 10.1103/PhysRevC.93.014301
2016PA04 Phys.Rev. C 93, 014318 (2016) H.Pai, T.Beck, J.Beller, R.Beyer, M.Bhike, V.Derya, U.Gayer, J.Isaak, Krishichayan, J.Kvasil, B.Loher, V.O.Nesterenko, N.Pietralla, G.Martinez-Pinedo, L.Mertes, V.Yu.Ponomarev, P.-G.Reinhard, A.Repko, P.C.Ries, C.Romig, D.Savran, R.Schwengner, W.Tornow, V.Werner, J.Wilhelmy, A.Zilges, M.Zweidinger Magnetic dipole excitations of 50Cr NUCLEAR REACTIONS 50Cr(γ, γ'), (polarized γ, γ'), E<9.7 MeV bremsstrahlung; measured Eγ, Iγ, γ(θ), γ-polarization asymmetry, integrated σ, γ-branching ratios. Experiments performed at Darmstadt S-DALINAC and TUNL High Intensity γ-ray Source (HIγS) facilities. 50Cr; deduced levels, J, π, B(M1), reduced widths, configurations, M1 spin-flip transition. Discussed isovector rotation-like oscillations of 1+ states versus scissors-type mode. Comparison with Skyrme quasiparticle random-phase-approximation (QRPA) and the large-scale shell model (LSSM) calculations.
doi: 10.1103/PhysRevC.93.014318
2015MA55 Phys.Rev. C 92, 044309 (2015) R.Massarczyk, R.Schwengner, L.A.Bernstein, M.Anders, D.Bemmerer, R.Beyer, Z.Elekes, R.Hannaske, A.R.Junghans, T.Kogler, M.Roder, K.Schmidt, A.Wagner, L.Wagner Dipole strength distribution of 74Ge NUCLEAR REACTIONS 74Ge(γ, γ'), E=1-11 MeV; measured Eγ, Iγ, γγ(θ), angle-integrated scattering cross section at the ELBE accelerator facility. 74Ge; deduced levels, J, π. Statistical methods, and simulations of γ-ray cascades. Comparison with (γ, n) data, and with three Lorentz functions (TLO) calculations.
doi: 10.1103/PhysRevC.92.044309
2014BE11 Nucl.Phys. A927, 41 (2014) R.Beyer, R.Schwengner, R.Hannaske, A.R.Junghans, R.Massarczyk, M.Anders, D.Bemmerer, A.Ferrari, A.Hartmann, T.Kogler, M.Roder, K.Schmidt, A.Wagner Inelastic scattering of fast neutrons from excited states in 56Fe NUCLEAR REACTIONS 56Fe(n, n'), E=0.8-9.6 MeV; measured Eγ, Iγ(θ) using HPGe, In, En using ToF, In, nγ-coin. 56Fe deduced levels, J, π, γ transition scheme, neutron fluence vs energy, inelastic neutron scattering σ, γ production σ for specified discrete transitions, yrast states; calculated neutron σ using statistical code TALYS.
doi: 10.1016/j.nuclphysa.2014.03.010
2014JU01 Nucl.Data Sheets 119, 349 (2014) A.R.Junghans, R.Beyer, Z.Elekes, E.Grosse, R.Hannaske, T.Kogler, R.Massarczyk, R.Schwengner, A.Wagner Fast-neutron Induced Reactions at the nELBE Time-of-flight Facility NUCLEAR REACTIONS 56Fe(n, n'γ), E=0-10 MeV; measured Eγ, Iγ using HPGe; deduced σ to three low-lying states. Au, Ta(n, x), E=0.2-14 MeV; measured reaction products; deduced neutron transmission coefficients, total σ; calculated total σ using TALYS. Compared also with other data.
doi: 10.1016/j.nds.2014.08.096
2014KO32 Nucl.Data Sheets 119, 404 (2014) T.Kogler, R.Beyer, Z.Elekes, R.Hannaske, A.R.Junghans, R.Massarczyk, R.Schwengner, A.Wagner Target Characterization of Large Area Minor Actinide Layers and Fission Chamber Simulations for Fast Neutron-induced Fission Cross Section Experiments at nELBE
doi: 10.1016/j.nds.2014.08.113
2014MA05 Phys.Rev.Lett. 112, 072501 (2014) R.Massarczyk, R.Schwengner, F.Donau, S.Frauendorf, M.Anders, D.Bemmerer, R.Beyer, C.Bhatia, E.Birgersson, M.Butterling, Z.Elekes, A.Ferrari, M.E.Gooden, R.Hannaske, A.R.Junghans, M.Kempe, J.H.Kelley, T.Kogler, A.Matic, M.L.Menzel, S.Muller, T.P.Reinhardt, M.Roder, G.Rusev, K.D.Schilling, K.Schmidt, G.Schramm, A.P.Tonchev, W.Tornow, A.Wagner Nuclear Deformation and Neutron Excess as Competing Effects for Dipole Strength in the Pygmy Region NUCLEAR REACTIONS 124,128,132,134Xe(γ, X), E<12 MeV; measured reaction products, Eγ, Iγ. 124,128,132,134Xe; deduced photoabsorption σ, summed B(E1) strength, nuclear deformation in the region of the pygmy dipole resonance. Nuclear resonance fluorescence experiment, random-phase approximation calculations, comparison with available data.
doi: 10.1103/PhysRevLett.112.072501
2014MA81 Phys.Rev. C 90, 044301 (2014) A.Makinaga, R.Massarczyk, R.Schwengner, M.Beard, F.Donau, M.Anders, D.Bemmerer, R.Beyer, R.Hannaske, A.R.Junghans, M.Kempe, T.Kogler, M.Roder, K.Schmidt, A.Wagner Dipole strength of 181Ta for the evaluation of the 180Ta stellar neutron capture rate NUCLEAR REACTIONS 181Ta(γ, γ'), E<10 MeV; measured Eγ, Iγ, γγ-coin, photoabsorption σ(E) using the bremsstrahlung facility γ-ELBE at the electron accelerator of Dresden-Rossendorf (HZDR) facility; deduced mean branching ratios and uncertainty range of ground-state transitions from γ-ray cascades, dipole-strength distribution. Comparison with 181Ta(γ, n) experimental data, and QRPA calculations. NUCLEAR REACTIONS 180,180m,181Ta(n, γ), E<15 MeV; calculated σ(E), Maxwellian-averaged cross sections (MACS). 181Ta(γ, n) at T=2-5.5 GK; 180mTa(n, γ) at T=0.1-1 GK; calculated stellar reaction rates. Calculations using the code TALYS with various models for the input strength function. Comparison with data in KADoNiS database.
doi: 10.1103/PhysRevC.90.044301
2014NA25 Nucl.Data Sheets 119, 98 (2014) N.Nankov, A.J.M.Plompen, S.Kopecky, K.S.Kozier, D.Roubtsov, R.Rao, R.Beyer, E.Grosse, R.Hannaske, A.R.Junghans, R.Massarczyk, R.Schwengner, D.Yakorev, A.Wagner, M.Stanoiu, L.Canton, R.Nolte, S.Rottger, J.Beyer, J.Svenne The Angular Distribution of Neutrons Scattered from Deuterium below 2 MeV NUCLEAR REACTIONS 2H(n, n), E=0.1-2 MeV; Measured En, In(θ=150), In(θ=1650) using nELBE neutron ToF facility; deduced neutron spectra, deuteron counts at forward and backward directions.
doi: 10.1016/j.nds.2014.08.028
2013HA37 Eur.Phys.J. A 49, 137 (2013) R.Hannaske, Z.Elekes, R.Beyer, A.Junghans, D.Bemmerer, E.Birgersson, A.Ferrari, E.Grosse, M.Kempe, T.Kogler, M.Marta, R.Massarczyk, A.Matic, G.Schramm, R.Schwengner, A.Wagner Neutron total cross section measurements of gold and tantalum at the nELBE photoneutron source NUCLEAR REACTIONS Ta, 197Au(n, X), E≈0.1-10 MeV; measured thick target reaction products using ELBE ToF; deduced total σ, effective total σ using energy-averaged transmission using ENDF/B-VII.1; calculated total σ using TALYS 1.4. Compared with other data and evaluations.
doi: 10.1140/epja/i2013-13137-1
2013MA32 Phys.Rev. C 87, 044306 (2013) R.Massarczyk, G.Schramm, A.R.Junghans, R.Schwengner, M.Anders, T.Belgya, R.Beyer, E.Birgersson, A.Ferrari, E.Grosse, R.Hannaske, Z.Kis, T.Kogler, K.Kosev, M.Marta, L.Szentmiklosi, A.Wagner, J.L.Weil Electromagnetic dipole strength up to the neutron separation energy from 196Pt(γγ')and 195Pt(n, γ) reactions NUCLEAR REACTIONS 195Pt(n, γ), E(mean)=12 meV; measured Eγ, Iγ at the research reactor in Budapest. 196Pt(γ, γ'), E=0-7.9 MeV; measured Eγ, Iγ, bremsstrahlung photon fluences, photoabsorption σ(E) at the ELBE accelerator in Dresden; deduced E1 and M1 strength distributions, simulated ground-state branching ratios for 1- states. Analysis by statistical code γDEX.
doi: 10.1103/PhysRevC.87.044306
2013SC03 Phys.Rev. C 87, 024306 (2013) R.Schwengner, R.Massarczyk, G.Rusev, N.Tsoneva, D.Bemmerer, R.Beyer, R.Hannaske, A.R.Junghans, J.H.Kelley, E.Kwan, H.Lenske, M.Marta, R.Raut, K.D.Schilling, A.Tonchev, W.Tornow, A.Wagner Pygmy dipole strength in 86Kr and systematics of N=50 isotones NUCLEAR REACTIONS 86Kr(γ, γ'), (polarized γ, γ'), E<11.2 MeV; measured Eγ, Iγ, γγ(θ), widths, azimuthal asymmetry, integrated σ. ELBE accelerator facility at HZDR, and HIγS facility at TUNL. 86Kr; deduced levels, PDR, J, π, branching ratios, photoabsorption σ(E), energy-weighted sums of photoabsorption σ. Comparison of photoabsorption σ with that from (γ, n) reaction. NUCLEAR STRUCTURE 86Kr, 88Sr, 90Zr, 92Mo; calculated neutron skin thickness, B(E1), proton and neutron transition densities using QRPA calculations. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.87.024306
2012MA31 Phys.Rev. C 86, 014319 (2012) R.Massarczyk, R.Schwengner, F.Donau, E.Litvinova, G.Rusev, R.Beyer, R.Hannaske, A.R.Junghans, M.Kempe, J.H.Kelley, T.Kogler, K.Kosev, E.Kwan, M.Marta, A.Matic, C.Nair, R.Raut, K.D.Schilling, G.Schramm, D.Stach, A.P.Tonchev, W.Tornow, E.Trompler, A.Wagner, D.Yakorev Electromagnetic dipole strength of 136Ba below the neutron separation energy NUCLEAR REACTIONS 136Ba(γ, γ'), E at 7.0 MeV/c and 11.4 MeV/c; 136Ba(polarized γ, γ')E=4.7, 5.1, 5.6, 6.1, 6.5, 7.0, 7.5, 8.0, 8.4, 8.7, 9.0, 9.3 MeV; measured Eγ, Iγ, integrated σ(E), photoabsorption σ as a function of excitation energy, γ(θ), γ(lin pol) using Bremsstrahlung facility at ELBE, HZDR, and HIγS facility at TUNL. 136Ba; deduced levels, J, π, widths, pygmy dipole resonances, dipole strength in the quasicontinuum, enhancement of dipole strength. Statistical code used to simulate inelastic transitions and to determine the branching ratios of transitions to ground state. GEANT4 simulations. Comparison with previous experimental studies, and with theoretical calculations using quasiparticle random-phase approximation (QRPA) and relativistic quasiparticle time blocking approximation (RQTBA) approaches. Comparison of photoabsorption σ in 136,138Ba and 139La targets.
doi: 10.1103/PhysRevC.86.014319
2012SC02 Phys.Rev. C 85, 014311 (2012) G.Schramm, R.Massarczyk, A.R.Junghans, T.Belgya, R.Beyer, E.Birgersson, E.Grosse, M.Kempe, Z.Kis, K.Kosev, M.Krticka, A.Matic, K.D.Schilling, R.Schwengner, L.Szentmiklosi, A.Wagner, J.L.Weil Dipole strength in 78Se below the neutron separation energy from a combined analysis of 77Se(n, γ) and 78Se(γ, γ') experiments NUCLEAR REACTIONS 77Se(n, γ), E AP 6 milli-eV, cold neutrons; 78Se(γ, γ'), E<11.5 MeV bremsstrahlung; measured Eγ, Iγ; deduced photoabsorption cross section, level density according to constant-temperature model, dipole strength function. Comparison with simulated spectra from extreme statistical code.
doi: 10.1103/PhysRevC.85.014311
2011BE10 Int.J.Mod.Phys. E20, 431 (2011) R.Beyer, E.Birgersson, A.R.Junghans, R.Massarczyk, G.Schramm, R.Schwengner, E.Grosse Electromagnetic strength in heavy nuclei-experiments and global fit NUCLEAR STRUCTURE 208Pb; calculated photon and dipole strengths, dipole absorption, average photon widths.
doi: 10.1142/S021830131101782X
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.
2011JU04 J.Korean Phys.Soc. 59, 1593s (2011) A.R.Junghans, E.Altstadt, R.Beyer, E.Birgersson, T.Cowan, A.Ferrari, R.Hannaske, A.Matic, K.D.Schilling, R.Schlenk, S.Schneider, R.Schwengner, A.Wagner, F.-P.Weiss, D.Gehre, E.Grosse The nELBE Neutron Time of Flight Facility NUCLEAR REACTIONS 56Fe(n, n'), E=800-6000 keV; measured En, In using plastic and ELBE TOFi, Eγ, Iγ using BaF2; deduced σ. Compared with other data and ENDFB-VII.
doi: 10.3938/jkps.59.1593
2011JU05 J.Korean Phys.Soc. 59, 1872s (2011) A.R.Junghans, R.Beyer, G.Rusev, R.Schwengner, A.Wagner, E.Grosse The Energy Dependence of the Electric Dipole Strength in Heavy Nuclei NUCLEAR STRUCTURE 98Mo, 168Er, 181,182Ta, 190Os; calculated, evaluated deformation, triaxiality, GDR spreading width, dipole strength distribution using published data; deduced parameters.
doi: 10.3938/jkps.59.1872
2010ER01 Phys.Rev. C 81, 034319 (2010) M.Erhard, A.R.Junghans, C.Nair, R.Schwengner, R.Beyer, J.Klug, K.Kosev, A.Wagner, E.Grosse Experimental study of the electric dipole strength in the even Mo nuclei and its deformation dependence NUCLEAR REACTIONS 92,94,96,98,100Mo(γ, γ'), E=bremsstrahlung spectrum with endpoints at 13.2 and 13.9 MeV; measured γ spectra, γ(θ), photon yields, photon strength functions. 92,94,96,98,100Mo(γ, n), E<20 MeV bremsstrahlung spectrum; measured γ continuum spectra, activation yields, and σ; deduced dipole strength functions, GDR. Comparisons with RIPL-2 database, Lorentzian parametrizations, and calculations using TALYS code.
doi: 10.1103/PhysRevC.81.034319
2010MA26 Phys.Rev. C 81, 055807 (2010) M.Marta, E.Trompler, D.Bemmerer, R.Beyer, C.Broggini, A.Caciolli, M.Erhard, Z.Fulop, E.Grosse, G.Gyurky, R.Hannaske, A.R.Junghans, R.Menegazzo, C.Nair, R.Schwengner, T.Szucs, S.Vezzu, A.Wagner, D.Yakorev Resonance strengths in the 14N(p, γ)15O and 15N(p, αγ)12C reactions NUCLEAR REACTIONS 14N(p, γ)15O, E=278, 1058 keV; 15N(p, α)12C, E=430, 897 keV; measured γ-ray spectra, yield, angular distributions, branching ratio, and resonance strengths. 15O; deduced resonances. Comparison with previous measurements.
doi: 10.1103/PhysRevC.81.055807
2010MA40 Phys.Rev. C 82, 024314 (2010) A.Makinaga, R.Schwengner, G.Rusev, F.Donau, S.Frauendorf, D.Bemmerer, R.Beyer, P.Crespo, M.Erhard, A.R.Junghans, J.Klug, K.Kosev, C.Nair, K.D.Schilling, A.Wagner Dipole strength in 139La below the neutron-separation energy NUCLEAR REACTIONS 139La(γ, γ'), E=2-10 MeV; measured Eγ, Iγ; deduced levels, integrated cross section, branching ratios, partial widths, level densities as function of spin, and γ-intensity distributions. Comparison with calculations based on quasiparticle-random-phase approximation using an instantaneous-shape sampling (ISS-QRPA).
doi: 10.1103/PhysRevC.82.024314
2010NA12 Phys.Rev. C 81, 055806 (2010) C.Nair, A.R.Junghans, M.Erhard, D.Bemmerer, R.Beyer, E.Grosse, K.Kosev, M.Marta, G.Rusev, K.D.Schilling, R.Schwengner, A.Wagner Dipole strength in 144Sm studied via (γ, n), (γ, p), and (γ, α) reactions NUCLEAR REACTIONS 144Sm(γ, n), (γ, p), (γ, α), E<20 MeV bremsstrahlung; measured Eγ, Iγ, yields, σ(E) using activation method. Comparison with Hauser-Feshbach statistical models calculations using NON-SMOKER code.
doi: 10.1103/PhysRevC.81.055806
2010SC11 Phys.Rev. C 81, 054315 (2010) R.Schwengner, R.Massarczyk, B.A.Brown, R.Beyer, F.Donau, M.Erhard, E.Grosse, A.R.Junghans, K.Kosev, C.Nair, G.Rusev, K.D.Schilling, A.Wagner E1 strength in 208Pb within the shell model NUCLEAR REACTIONS 208Pb(γ, γ'), E=9-15 MeV; measured Eγ, Iγ, γ(θ), linear polarization, integrated cross sections. 208Pb; deduced levels, J, π, widths, B(E1). Comparison with shell model and QRPA calculations.
doi: 10.1103/PhysRevC.81.054315
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
2009RU05 Phys.Rev. C 79, 061302 (2009) G.Rusev, R.Schwengner, R.Beyer, M.Erhard, E.Grosse, A.R.Junghans, K.Kosev, C.Nair, K.D.Schilling, A.Wagner, F.Donau, S.Frauendorf Enhanced electric dipole strength below particle-threshold as a consequence of nuclear deformation NUCLEAR REACTIONS 92,94,96,98,100Mo(γ, γ'), E=4-13 MeV; measured Eγ, Iγ, absolute photoabsorption σ. Comparison with QRPA calculations.
doi: 10.1103/PhysRevC.79.061302
2008NA05 J.Phys.(London) G35, 014036 (2008) C.Nair, A.R.Junghans, M.Erhard, D.Bemmerer, R.Beyer, P.Crespo, E.Grosse, M.Fauth, K.Kosev, G.Rusev, K.D.Schilling, R.Schwengner, A.Wagner Photodisintegration studies on p-nuclei: the case of Mo and sm isotopes NUCLEAR REACTIONS 92Mo(γ, p), (γ, n), (γ, α), E not given; 144Sm(γ, n), (γ, α), E not given; measured Eγ, Iγ, activation yields. Comparison with model calculations.
doi: 10.1088/0954-3899/35/1/014036
2008NA26 Phys.Rev. C 78, 055802 (2008) C.Nair, M.Erhard, A.R.Junghans, D.Bemmerer, R.Beyer, E.Grosse, J.Klug, K.Kosev, G.Rusev, K.D.Schilling, R.Schwengner, A.Wagner Photoactivation experiment on 197Au and its implications for the dipole strength in heavy nuclei NUCLEAR REACTIONS 197Au(γ, n), E=8.0-15.5 MeV; measured activation yields. Comparison with Hauser Feshbach calculations.
doi: 10.1103/PhysRevC.78.055802
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
2008WA07 J.Phys.(London) G35, 014035 (2008) A.Wagner, R.Beyer, M.Erhard, E.Grosse, A.R.Junghans, J.Klug, K.Kosev, C.Nair, N.Nankov, G.Rusev, K.D.Schilling, R.Schwengner Photon strength distributions in stable even-even molybdenum isotopes NUCLEAR REACTIONS 92,94,96,98,100Mo(γ, γ'), E not given; measured Eγ, Iγ, photoabsorption cross sections.
doi: 10.1088/0954-3899/35/1/014035
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
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
2006ER06 Eur.Phys.J. A 27, Supplement 1, 135 (2006) M.Erhard, A.R.Junghans, R.Beyer, E.Grosse, J.Klug, K.Kosev, C.Nair, N.Nankov, G.Rusev, K.D.Schilling, R.Schwengner, A.Wagner Photodissociation of p-process nuclei studied by bremsstrahlung-induced activation NUCLEAR REACTIONS 197Au, 100Mo(γ, n), 92Mo(γ, n), (γ, p), (γ, α), E ≈ 11.8-14 MeV bremsstrahlung; measured activation yields.
doi: 10.1140/epja/i2006-08-019-4
2005WA31 J.Phys.(London) G31, S1969 (2005) A.Wagner, R.Beyer, M.Erhard, F.Donau, E.Grosse, A.Hartmann, A.R.Junghans, L.Kaubler, K.Kosev, S.Mallion, C.Nair, N.Nankov, G.Rusev, K.D.Schilling, W.Schulze, R.Schwengner The new bremsstrahlung facility at the superconducting electron accelerator ELBE NUCLEAR REACTIONS 92,98,100Mo(γ, γ'), E=13.2 MeV bremsstrahlung; measured Eγ, Iγ. 92,100Mo, 197Au(γ, n), 92Mo(γ, p), (γ, α), E ≈ 11.8-16.5 MeV bremsstrahlung; measured integrated σ.
doi: 10.1088/0954-3899/31/10/112
1972GR37 Nucl.Phys. A196, 216 (1972) D.W.Grissmer, R.Beyer, R.P.Scharenberg, G.Schilling, J.A.Thomson, J.W.Tippie The Static Quadrupole Moments of the First 2+ States of 74Ge and 76Ge NUCLEAR REACTIONS 74Ge(16O, 16O'γ), 76Ge(16O, 16O'γ), E=25 MeV; measured σ(Eγ, θ(16O), θ(16O)(γ)). 74,76Ge levels deduced Q2+. Enriched targets.
doi: 10.1016/0375-9474(72)90962-1
1970BE45 Phys.Rev. C2, 1469 (1970); See Also 1970BEZY R.Beyer, R.P.Scharenberg, J.Thomson Measurements of Static Quadrupole Moment of the First Excited 2+ States of the Nuclei Pd106 and Pd110 by Heavy-Ion Coulomb Excitation NUCLEAR REACTIONS 106,110Pd(16O, 16O'γ), E=25, 30 MeV; 106,110Pd(32S, 32S'γ), E=55, 56 MeV; measured σ(E(16O'), Eγ, θ(16O'), θ(γ), phi(γ)), σ(E(32S'), θ(32S'), θ(γ), phi(γ)). 106,110Pd levels deduced quadrupole moment.
doi: 10.1103/PhysRevC.2.1469
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