NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = R.Massarczyk Found 39 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
2023NA30 Eur.Phys.J. A 59, 249 (2023) H.Naik, G.N.Kim, R.Schwengner, W.Jang, T.H.Nguyen, S.G.Shin, Y.Kye, R.Massarczyk, R.John, A.Junghans, A.Wagner, M.H.Cho Measurement of the flux-weighted cross-sections for the natYb(γ, xn)175, 169, 167Yb reactions in the Bremsstrahlung end-point energies of 12-16 MeV and 60-70 MeV NUCLEAR REACTIONS Yb(γ, xn)175Yb/169Yb/167Yb, 27Al(γ, n2p), 197Au(γ, n), E<70 MeV; measured reaction products, Eγ, Iγ; deduced flux-weighted average σ, normalised activation yields. Comparison with the EXFOR library, TALYS 1.9 calculations. The 20 MeV electron linac (ELBE) at Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden, Germany, and 100 MeV electron linac at the Pohang Accelerator Laboratory (PAL), Korea.
doi: 10.1140/epja/s10050-023-01137-x
2022BA17 Phys.Rev.Lett. 128, 232501 (2022) V.V.Barinov, B.T.Cleveland, S.N.Danshin, H.Ejiri, S.R.Elliott, D.Frekers, V.N.Gavrin, V.V.Gorbachev, D.S.Gorbunov, W.C.Haxton, T.V.Ibragimova, I.Kim, Y.P.Kozlova, L.V.Kravchuk, V.V.Kuzminov, B.K.Lubsandorzhiev, Y.M.Malyshkin, R.Massarczyk, V.A.Matveev, I.N.Mirmov, J.S.Nico, A.L.Petelin, R.G.H.Robertson, D.Sinclair, A.A.Shikhin, V.A.Tarasov, G.V.Trubnikov, E.P.Veretenkin, J.F.Wilkerson, A.I.Zvir Results from the Baksan Experiment on Sterile Transitions (BEST) NUCLEAR REACTIONS 71Ga(ν, e-), E<1 MeV; measured reaction products, Eβ, Iβ; deduced the deficit of electron neutrinos observed in gallium-based radiochemical measurements with high-intensity neutrino sources, commonly referred to as the gallium anomaly. The Baksan Experiment on Sterile Transitions (BEST).
doi: 10.1103/PhysRevLett.128.232501
2022BA21 Phys.Rev. C 105, 065502 (2022) V.V.Barinov, S.N.Danshin, V.N.Gavrin, V.V.Gorbachev, D.S.Gorbunov, T.V.Ibragimova, Yu.P.Kozlova, L.V.Kravchuk, V.V.Kuzminov, B.K.Lubsandorzhiev, Yu.M.Malyshkin, I.N.Mirmov, A.A.Shikhin, E.P.Veretenkin, B.T.Cleveland, H.Ejiri, S.R.Elliott, I.Kim, R.Massarczyk, D.Frekers, W.C.Haxton, V.A.Matveev, G.V.Trubnikov, J.S.Nico, A.L.Petelin, V.A.Tarasov, A.I.Zvir, R.G.H.Robertson, D.Sinclair, J.F.Wilkerson Search for electron-neutrino transitions to sterile states in the BEST experiment NUCLEAR REACTIONS 71Ga(ν, e-), E<1 MeV; measured reaction products, Eb, Iβ; deduced 71Ge yields, deficit of electron neutrinos observed in gallium-based radiochemical measurements with high-intensity neutrino sources, commonly referred as "the gallium anomaly". The Baksan Experiment on Sterile Transitions (BEST). Neutrinos from decay of the 51Cr decay. RADIOACTIVITY 51Cr(EC); measured Eγ, Iγ, calorimetric heat; deduced T1/2.
doi: 10.1103/PhysRevC.105.065502
2022SA39 Phys.Rev. C 106, 044324 (2022) D.Savran, J.Isaak, R.Schwengner, R.Massarczyk, M.Scheck, W.Tornow, G.Battaglia, T.Beck, S.W.Finch, C.Fransen, U.Friman-Gayer, R.Gonzalez, E.Hoemann, R.V.F.Janssens, S.R.Johnson, M.D.Jones, J.Kleemann, Krishichayan, D.R.Little, D.O'Donnell, O.Papst, N.Pietralla, J.Sinclair, V.Werner, O.Wieland, J.Wilhelmy Model-independent determination of the dipole response of 66Zn using quasimonoenergetic and linearly polarized photon beams NUCLEAR REACTIONS 66Zn(polarized γ, γ'), E=5.6-9.9 MeV; measured Eγ, Iγ, γγ-coin; deduced elastic, inelastic and total photoabsorption σ(E), average ground-state branching ratio, ratio of M1 to E1 elastic σ(E). Comparison to other experimental results. γ3-detector setup consisting of HPGe and LaBr3:Ce detectors at HIγS facility of the TUNL at Duke University.
doi: 10.1103/PhysRevC.106.044324
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
2020MU11 Phys.Rev. C 102, 014317 (2020) M.Muscher, J.Wilhelmy, R.Massarczyk, R.Schwengner, M.Grieger, J.Isaak, A.R.Junghans, T.Kogler, F.Ludwig, D.Savran, D.Symochko, M.P.Takacs, M.Tamkas, A.Wagner, A.Zilges High-sensitivity investigation of low-lying dipole strengths in 120Sn NUCLEAR REACTIONS 120Sn(γ, γ'), E=9.5 MeV bremsstrahlung beam; measured Eγ, Iγ, γ(θ) using four HPGe detectors at the γELBE facility of Helmholtz-Zentrum Dresden-Rossendorf. 120Sn; deduced levels, pygmy dipole resonances (PDR), J, π, Γ02/Γ, photoabsorption σ(Eγ), B(E1), Thomas-Reiche-Kuhn sum rule using statistical model with constant-temperature level density. Comparison with experimental results for 120Sn(p, p').
doi: 10.1103/PhysRevC.102.014317
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
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
2017GR20 Eur.Phys.J. A 53, 225 (2017) E.Grosse, A.R.Junghans, R.Massarczyk Breaking of axial symmetry in excited heavy nuclei as identified in giant dipole resonance data NUCLEAR STRUCTURE 78Se, 98Mo, 118Sn, 130Te, 127I, Ba, 146Nd, 156Gd, 168Er, 181Ta, 190Os, 196Pt, 197Au, 202Hg, 232Th, 208Pb, 238U, 239Pu; calculated γ-ray strength function from 3 to 25 MeV. A=30-250; calculated γ-ray isoVector giant dipole resonance (IVGDR) energy, widths, energy integrals. GDR parameters compared with compilation of Plujko et al. NUCLEAR REACTIONS 148,154Sm(γ, n), E=8-21 MeV;208Pb(γ, n), E=4-116 MeV; calculated σ using different models, upper limits of minor electric and magnetic modes contributions to γ-ray dipole (and also three GQR modes) strength function.
doi: 10.1140/epja/i2017-12415-2
2016KI10 Eur.Phys.J. A 52, 170 (2016) H.I.Kim, C.Paradela, I.Sirakov, B.Becker, R.Capote, F.Gunsing, G.N.Kim, S.Kopecky, C.Lampoudis, Y.-O.Lee, R.Massarczyk, A.Moens, M.Moxon, V.G.Pronyaev, P.Schillebeeckx, R.Wynants Neutron capture cross section measurements for 238U in the resonance region at GELINA NUCLEAR REACTIONS 238U(n, γ), E=0.5 eV - 300 keV; measured reaction products, yields vs neutron energy at GELINA ToF facility with C6D6 detectors; deduced transmission coefficients for s- and p-waves, neutron strength, neutron widths, resonance parameters below 1200 eV using REFIT code, average capture σ, dσ, covariance matrix; calculated σ, dσ using statistical code γDEX. Resultswere compared with other data and evaluations.
doi: 10.1140/epja/i2016-16170-6
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
2016MA66 Phys.Rev. C 94, 044304 (2016) A.Makinaga, R.Massarczyk, M.Beard, R.Schwengner, H.Otsu, T.Al-Abdullah, M.Anders, D.Bemmerer, R.Hannaske, R.John, A.R.Junghans, S.E.Muller, M.Roder, K.Schmidt, A.Wagner Dipole strength in 80Se for s process and nuclear transmutation of 79Se NUCLEAR REACTIONS 80Se(γ, γ'), E<11.5 MeV bremsstrahlung beam from γELBE facility at Dresden; measured Eγ, Iγ, energy-integrated σ, γ(θ). 80Se; deduced levels, J, photoabsorption σ(E) and compared to (γ, n) data. 79Se(n, γ), E=1 keV to 9 MeV; calculated σ(E), Maxwellian-averaged cross sections (MACs), reaction rates as a function of temperature from 0.0001 to 10 GK using TALYS code with various input strength functions. 80Se(γ, n), T9=2-5.5; calculated reaction rates using TALYS code with various input strength functions. Comparison with σ data in KADoNiS database.
doi: 10.1103/PhysRevC.94.044304
2016NA11 Eur.Phys.J. A 52, 47 (2016) H.Naik, G.N.Kim, R.Schwengner, K.Kim, M.Zaman, S.C.Yang, S.G.Shin, Y.-U.Kye, R.Massarczyk, R.John, A.Junghans, A.Wagner, A.Goswami, M.-H.Cho Measurement of isomeric ratios for 89g, mZr, 91g, mMo, and 97g, mNb in the bremsstrahlung end-point energies of 16 and 45-70 MeV NUCLEAR REACTIONS Zr(γ, xn), Mo(γ, x), E=16, 45, 50, 55, 60, 70 MeV[bremsstrahlung end-point energy]; measured bremsstrahlung induced off-line Eγ, Iγ; deduced 89g,89mZr, 91g,91mMo, 97g,97mNb isomeric σ ratios, isomeric yield ratios; calculated isomeric σ ratios using TALYS 1.6. Compared also with published data.
doi: 10.1140/epja/i2016-16047-8
2016NA25 Eur.Phys.J. A 52, 195 (2016) H.Naik, G.N.Kim, R.Capote Noy, R.Schwengner, K.Kim, M.Zaman, S.G.Shin, Y.Gey, R.Massarczyk, R.John, R.John, A.Junghans, A.Wagner, M.-H.Cho Photo-neutron reaction cross-sections for natMo in the bremsstrahlung end-point energies of 12-16 and 45-70 MeV NUCLEAR REACTIONS Mo(γ, xn)90,91,99Mo, E=12-16, 45-70 MeV[end-point energy]; measured bremsstrahlung induced Eγ, Iγ using activation and γ-ray spectrometric technique; deduced σ (separated metastable and gs for 91Mo); calculated σ using TALYS 1.6 (complemented by some other Mo(γ, xn) reactions from literature). (Results for 91Mo of the authors already published in Eur.Phys.J. A52, p.47.)
doi: 10.1140/epja/i2016-16195-9
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
2015NA18 Eur.Phys.J. A 51, 150 (2015) H.Naik, G.N.Kim, R.Schwengner, K.Kim, R.John, R.Massarczyk, A.Junghans, A.Wagner, d A.Goswami Fission product yield distribution in the 12, 14, and 16 MeV bremsstrahlung-induced fission of 232Th NUCLEAR REACTIONS 232Th(γ, F), E=12, 14, 16 MeV; measured bremsstrahlung induced fission, Eγ, Iγ from irradiated target; deduced absolute cumulative and mass chain fission products yields ; calculated absolute cumulative and mass chain fission products yields. Compared with literature 238U(γ, F) data measured at nearly the same energy.
doi: 10.1140/epja/i2015-15150-8
2015SZ02 Phys.Rev. C 92, 014315 (2015) T.Szucs, D.Bemmerer, A.Caciolli, Zs.Fulop, R.Massarczyk, C.Michelagnoli, T.P.Reinhardt, R.Schwengner, M.P.Takacs, C.A.Ur, A.Wagner, L.Wagner Determination of γ-ray widths in 15N using nuclear resonance fluorescence NUCLEAR REACTIONS 11B, 15N(γ, γ'), E<12.6 MeV; measured Eγ, Iγ, γ(θ), integrated scattering cross sections using NRF technique at superconducting electron accelerator ELBE-HZDR. 11B, 15N; deduced levels, J, π, multipolarities, mixing ratios, γ branching ratios, partial gamma widths to the ground state, resonance strengths of 527-and 634-keV proton resonances, and proton reduced width of 10.804-MeV level in 15N. Comparison with previous experimental data.
doi: 10.1103/PhysRevC.92.014315
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
2014MA60 Nucl.Data Sheets 119, 317 (2014) R.Massarczyk, R.Schwengner, A.R.Junghans Electromagnetic Dipole Strength in 124, 128, 134Xe NUCLEAR REACTIONS 124,128,134Xe(γ, x), E=4000-10500 MeV; measured reaction products using Dresden ELBE accelerator with bremsstrahlung facility and HIγS facility at Durham; deduced photoabsorption σ, B(E1) between 6 and 8 MeV excitation (one older ELBE point added). Cross sections compared with RIPL3 and TLO (triple Lorentzian), B(E1) with ELBE data on N=82 nuclei.
doi: 10.1016/j.nds.2014.08.087
2014MA69 Eur.Phys.J. A 50, 124 (2014) C.Massimi, B.Becker, E.Dupont, S.Kopecky, C.Lampoudis, R.Massarczyk, M.Moxon, V.Pronyaev, P.Schillebeeckx, I.Sirakov, R.Wynants Neutron capture cross section measurements for 197Au from 3.5 to 84 keV at GELINA
doi: 10.1140/epja/i2014-14124-8
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
2014MA90 Phys.Rev. C 90, 054310 (2014) R.Massarczyk, G.Rusev, R.Schwengner, F.Donau, C.Bhatia, M.E.Gooden, J.H.Kelley, A.P.Tonchev, W.Tornow Magnetic dipole strength in 128Xe and 134Xe in the spin-flip resonance region NUCLEAR REACTIONS 128,134Xe(polarized γ, γ'), E=6.0-9.6 MeV; measured Eγ, Iγ, γ(pol, θ) using HIγS facility at TUNL. 128,134Xe; deduced branching ratios and comparison with γ-ray cascade simulations, photoabsorption σ(E) for M1 and E1 transitions, B(M1), B(E1). Comparison of σ(E) with previous experimental results, predictions of phenomenological expressions, RIPL3 recommendations, triple-Lorentzian (TLO) model for E1 and the triple-Gaussian for M1, and QRPA calculations.
doi: 10.1103/PhysRevC.90.054310
2014NA17 Eur.Phys.J. A 50, 83 (2014) H.Naik, G.N.Kim, R.Schwengner, K.Kim, M.Zaman, S.C.Yang, M.W.Lee, S.G.Shin, Y.Gey, R.Massarczyk, R.John, A.Junghans, A.Wagner, A.Goswami, M.-H.Cho Photo-neutron reaction cross-sections for natZr in the bremsstrahlung end-point energies of 12-16 and 45-70 MeV NUCLEAR REACTIONS Zr(γ, xn), E=12-16, 45-70 MeV bremsstrahlung end-point; measured off-line Eγ, Iγ; deduced σ; calculated σ using TALYS-1.4. Compared with data.
doi: 10.1140/epja/i2014-14083-0
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
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
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