NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = M.Muller Found 20 matches. 2023MU07 Phys.Rev. C 107, 035804 (2023) M.Muller, F.Heim, Y.Wang, S.Wilden, A.Zilges Determination of 170, 172Yb(α, n)173, 175Hf reaction cross sections in a stacked-target experiment NUCLEAR REACTIONS 170Yb(α, n), E=14.5 MeV; 172Yb(α, n), E=17 MeV; measured Eγ, Iγ; deduced σ(E). Activation technique. Comparison with TALYS-1.95 calculations with various α optical model potentials (OMP) and other experimental data. Investigated the evolution of the α-OMP with the neutron-to-proton ratio. Cologne Clover Counting setup consisting of two clover-type high-purity germanium detectors in a face-to-face geometry. Irradiation of stacked targets at10 MV FN tandem accelerator (University of Cologne).
doi: 10.1103/PhysRevC.107.035804
2023NI10 Phys.Rev.Lett. 131, 222503 (2023) L.Nies, L.Canete, D.D.Dao, S.Giraud, A.Kankainen, D.Lunney, F.Nowacki, B.Bastin, M.Stryjczyk, P.Ascher, K.Blaum, R.B.Cakirli, T.Eronen, P.Fischer, M.Flayol, V.Girard Alcindor, A.Herlert, A.Jokinen, A.Khanam, U.Koster, D.Lange, I.D.Moore, M.Muller, M.Mougeot, D.A.Nesterenko, H.Penttila, C.Petrone, I.Pohjalainen, A.de Roubin, V.Rubchenya, Ch.Schweiger, L.Schweikhard, M.Vilen, J.Aysto Further Evidence for Shape Coexistence in 79Znm near Doubly Magic 78Ni ATOMIC MASSES 79Zn; measured frequencies, TOF; deduced the excitation energy of the 1/2+ isomer, the bandhead of a low-lying deformed structure akin to a predicted low-lying deformed band, shape coexistence. Comparison with state-of-the-art shell-model diagonalizations, complemented with discrete nonorthogonal shell-model calculations. The time-of-flight ion cyclotron resonance (TOF-ICR) method, the JYFLTRAP double Penning trap at the ion guide isotope separator on-line (IGISOL) facility in Jyvaskyla (Finland), and the multi-reflection time-of-flight mass spectrometer (MR-TOF MS) of ISOLTRAP at ISOLDE at CERN (Switzerland).
doi: 10.1103/PhysRevLett.131.222503
2023SA46 Phys.Rev. C 108, 044903 (2023) N.Sass, M.Muller, O.Garcia-Montero, H.Elfner Global angular momentum generation in heavy-ion reactions within a hadronic transport approach
doi: 10.1103/PhysRevC.108.044903
2022SC07 Nature(London) 606, 878 (2022) A.Schneider, B.Sikora, S.Dickopf, M.Muller, N.S.Oreshkina, A.Rischka, I.A.Valuev, S.Ulmer, J.Walz, Z.Harman, C.H.Keitel, A.Mooser, K.Blaum Direct measurement of the 3He+ magnetic moments NUCLEAR MOMENTS 3He; measured transition frequencies; deduced ground-state hyperfine structure, nuclear g-factor, zero-field hyperfine splitting, diamagnetic shielding constant, Zemach radius, nuclear magnetic moment. Comparison with available data. Penning trap.
doi: 10.1038/s41586-022-04761-7
2021HE07 Phys.Rev. C 103, 025805 (2021) F.Heim, J.Mayer, M.Muller, P.Scholz, A.Zilges Deducing primary γ-ray intensities and the dipole strength function in 94Mo via radiative proton capture NUCLEAR REACTIONS 93Nb(p, γ)94Mo, E=3.0, 3.5 MeV; 94Mo(p, p')94Mo, E=13.5 MeV; measured Eγ, Iγ, pγ- and γγ-coin using HORUS γ-ray spectrometer for γ detection and SONIC array for scattered protons at the FN-Tandem accelerator of University of Cologne. 94Mo; deduced levels, J, π, γ-branching ratios, primary γ rays from two-step cascade (TSC) spectra, partial cross-sections at E(p)=3.0 and 3.5 MeV, E1 and M1 strength functions, absolute γ-strength function (γSF). Systematics of γ strength functions in 92Mo, 94Mo and 96Mo. Comparison of γ strength functions with experimental results using the Oslo method and photoinduced experiments as well as with recent theoretical quasiparticle random-phase approximation (QRPA) calculations. Relevance to nucleosynthesis of heavy nuclei in the slow and rapid neutron capture processes.
doi: 10.1103/PhysRevC.103.025805
2021HE16 Phys.Rev. C 103, 054613 (2021) F.Heim, M.Muller, S.Wilden, A.Zilges Absolute 96Mo(p, n)96m+gTc cross sections and a new branching for the 96mTc decay NUCLEAR REACTIONS 96Mo(p, n)96Tc/96mTc, E=3.9-5.4 MeV; measured Eγ, Iγ; deduced production σ(E) for 96Tc g.s. and 96mTc, total σ(E) using activation method, branching ratio for 96mTc decay to 96Tc g.s. Comparison with previous experimental results, and with statistical model calculations using Hauser-Feshbach TALYS code v1.95. RADIOACTIVITY 96mTc(EC)[from 96Mo(p, n), E=3.9-5.4 MeV]; measured Eγ, Iγ, branching ratio for the ϵ decay mode. Comparison with literature data.
doi: 10.1103/PhysRevC.103.054613
2021HE17 Phys.Rev. C 103, 055803 (2021) F.Heim, J.Mayer, M.Muller, P.Scholz, A.Zilges Investigating the 109Ag(p, γ)110Cd reaction and its underlying nuclear physics NUCLEAR REACTIONS 109Ag(p, γ)110Cd, E=2.5-5.0 MeV from the FN-Tandem accelerator of the University of Cologne; measured Eγ, Iγ, γ(θ) using HORUS array of 14 HPGe detectors; deduced total σ(E). Comparison with previous experimental results and Hauser-Feshbach calculations. 106,108,110,112Cd; analyzed dipole components of the γ-ray strength functions and nuclear level density (NLD) using D1M+QRPA+0lim γ-SF model and microscopic NLD model.
doi: 10.1103/PhysRevC.103.055803
2020HE08 Phys.Rev. C 101, 035805 (2020) F.Heim, P.Scholz, M.Korschgen, J.Mayer, M.Muller, A.Zilges Insights into the statistical γ-decay behavior of 108Cd via radiative proton capture NUCLEAR REACTIONS 107Ag(p, γ)108Cd, E=2.0, 2.7, 3.5, 4, 4.5, 5.0 MeV; measured Eγ, Iγ, γγ-coin, γ(θ) using the HORUS spectrometer at the Institute for Nuclear Physics, Cologne. 108Cd; deduced levels, resonances, J, π, partial and total σ(E) in the astrophysical energy region, E1 γ-strength function (γ-SF), total γ-decay width, nuclear level density (NLD). Comparison with previous experimental data, and with statistical model calculations based on Gogny D1M HFB+QRPA interaction. Relevance to mechanism of the p process.
doi: 10.1103/PhysRevC.101.035805
2020HE09 Phys.Rev. C 101, 035807 (2020) F.Heim, P.Scholz, J.Mayer, M.Muller, A.Zilges Constraining nuclear properties in 94Mo via a 93Nb(p, γ)94Mo total cross section measurement NUCLEAR REACTIONS 93Nb(p, γ), E=1.96-4.98 MeV; measured Eγ, Iγ, γγ-coin, γ(θ) using the HORUS spectrometer at the Institute for Nuclear Physics, Cologne. 94Mo; deduced levels, J, π, nuclear level density (NLD), E1, M1 and E1+M1 g-strength functions (γ-SF), partial and total σ(E). 94Mo(γ, p), (γ, n), T=2.0-3.5 GK; deduced reaction rates, and compared with data in REACLIB and STARLIB libraries. Comparison with previous experimental data, and with statistical model calculations based on Gogny D1M HFB+QRPA interaction. Relevance to mechanism of the p process.
doi: 10.1103/PhysRevC.101.035807
2020RI04 Phys.Rev.Lett. 124, 113001 (2020) A.Rischka, H.Cakir, M.Door, P.Filianin, Z.Harman, W.J.Huang, P.Indelicato, C.H.Keitel, C.M.Konig, K.Kromer, M.Muller, Y.N.Novikov, R.X.Schussler, C.Schweiger, S.Eliseev, K.Blaum Mass-Difference Measurements on Heavy Nuclides with an eV/c2 Accuracy in the PENTATRAP Spectrometer ATOMIC MASSES 126,128,129,131,132,134Xe; measured frequencies; deduced mass differences of five pairs of stable xenon isotopes. The novel cryogenic multi-Penning-trap mass spectrometer PENTATRAP.
doi: 10.1103/PhysRevLett.124.113001
1998MU29 Nuovo Cim. 111A, 705 (1998) M.Muller, S.E.Muraviev, I.Rotter, V.V.Sokolov Interfering States and Narrow Resonances at High Excitation Energy NUCLEAR STRUCTURE 208Pb; calculated isoscalar multipole giant resonance strength function; deduced narrow states, role of one-particle continuum. Continuum RPA.
1997SO13 Phys.Rev. C56, 1031 (1997) V.V.Sokolov, I.Rotter, D.V.Savin, M.Muller Interfering Doorway States and Giant Resonances. I. Resonance Spectrum and Multipole Strengths
doi: 10.1103/PhysRevC.56.1031
1997SO14 Phys.Rev. C56, 1044 (1997) V.V.Sokolov, I.Rotter, D.V.Savin, M.Muller Interfering Doorway States and Giant Resonances. II. Transition Strengths
doi: 10.1103/PhysRevC.56.1044
1996PE07 Phys.Rev. C53, 3002 (1996) Resonance Phenomena Near Thresholds NUCLEAR STRUCTURE 16O; calculated resonances, nucleon decay characteristics; deduced trapping effect role.
doi: 10.1103/PhysRevC.53.3002
1995IS01 Phys.Rev. C51, 1842 (1995) Radial Pattern of Nuclear Decay Processes NUCLEAR STRUCTURE 16O; calculated 1- resonances partial widths radial profile; deduced correlation to T1/2. Continuum shell model.
doi: 10.1103/PhysRevC.51.1842
1994IS02 J.Phys.(London) G20, 775 (1994) Self-Organization in the Nuclear System: II. Formation of a new order
doi: 10.1088/0954-3899/20/5/011
1994MU15 Acta Phys.Pol. B25, 711 (1994) Selforganization and Disorder in an Open Quantum System
1993FO03 Nucl.Instrum.Methods Phys.Res. A327, 456 (1993) M.Forker, W.Herz, U.Hutten, M.Muller, R.Musseler, J.Schmidberger, D.Simon, A.Weingarten, S.C.Bedi A Furnace for High Temperature Perturbed Angular Correlation Measurements RADIOACTIVITY 181Hf(β-); measured γγ(θ, H). High temperature compact furnace, standard 181Ta probe in Zr, Hf metal and in undoped ZrO2.
doi: 10.1016/0168-9002(93)90711-P
1993IS08 J.Phys.(London) G19, 2045 (1993) Self-Organization in the Nuclear System: I. The Slaving Principle NUCLEAR STRUCTURE 16O; calculated transition from low to high level density; deduced slaving principle evidence. Many-body system, continuum channels, self-organization point of view.
doi: 10.1088/0954-3899/19/12/010
1981AN04 Nucl.Phys. A358, 365c (1981) H.G.Andresen, M.Engel, M.Muller, H.J.Ohlbach Can the Dynamics of Nuclear Rotation be Deduced from Electron Scattering Experiments < Question > NUCLEAR REACTIONS 154Sm(e, e'), E=20-200 MeV; calculated σ(θ, E); deduced charge, current contribution. PWBA calculation.
doi: 10.1016/0375-9474(81)90339-0
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