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NSR database version of April 11, 2024.

Search: Author = P.Scholz

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2023SC08      Phys.Rev. C 107, 065806 (2023)

P.Scholz, R.J.deBoer, J.Gorres, A.Gula, R.Kelmar, K.Manukyan, E.Stech, W.Tan, M.Wiescher

Measurement of 39K(p, γ)40Ca resonance strengths below 900 keV for nucleosynthesis in classical novae

NUCLEAR REACTIONS 39K(p, γ)40Ca, E=0.4, 1.4 MeV; measured Eγ, Iγ; deduced resonance strengths, astrophysical reaction rate (T=0.1-1.1 GK). 39K; lifetime under novae conditions. Comparison to previous experimental data and statistical model predictions (SAPPHIRE and NON-SMOKER codes). Single coaxial HPGe detector surrounded by BGO anti-Compton shield at 5U Pelletron accelerator of the Nuclear Science Laboratory (University of Notre Dame).

doi: 10.1103/PhysRevC.107.065806
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Data from this article have been entered in the XUNDL database. For more information, click here.


2022MA47      Phys.Rev. C 106, 034322 (2022); Erratum Phys.Rev. C 109, 019901 (2024)

M.Markova, A.C.Larsen, P.von Neumann-Cosel, S.Bassauer, A.Gorgen, M.Guttormsen, F.L.Bello Garrote, H.C.Berg, M.M.Bjoroen, T.K.Eriksen, D.Gjestvang, J.Isaak, M.Mbabane, W.Paulsen, L.G.Pedersen, N.I.J.Pettersen, A.Richter, E.Sahin, P.Scholz, S.Siem, G.M.Tveten, V.M.Valsdottir, M.Wiedeking

Nuclear level densities and γ-ray strength functions in 120, 124Sn isotopes: Impact of Porter-Thomas fluctuations

NUCLEAR REACTIONS 120,124Sn(p, p'γ), E=16 MeV; measured Eγ, Iγ, E(p), pγ-coin, E-ΔE distributions using an array of 64 ΔE-E particle telescopes, and OSCAR array of 30 LaBr3(Ce) scintillators for γ detection at the Oslo Cyclotron Laboratory. 120,124Sn; deduced γ strength functions as function of Eγ, (γSF(Eγ)) and nuclear level densities (NLD) using the OSLO method and shape methods, magnitude of the Porter-Thomas (PT) fluctuations. 120,122,124Sn; deduced 0+ states, and first 2+ state in 124Sn. Comparison of nuclear level densities for J=1 states with the constant temperature (CT) model, back-shifted Fermi gas model (BSFG) model calculations, and predictions of the microscopic Hartree-Fock-BCS method, and with previous experimental results. Systematics of average total radiative widths and nuclear level densities (NLD) for 113,114,115,116,117,118,119,120,121,123,124Sn.

doi: 10.1103/PhysRevC.106.034322
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2022SH36      Phys.Rev. C 106, 025805 (2022)

Shahina, J.Gorres, D.Robertson, M.Couder, O.Gomez, A.Gula, M.Hanhardt, T.Kadlecek, R.Kelmar, P.Scholz, A.Simon, E.Stech, F.Strieder, M.Wiescher

Direct measurement of the low-energy resonances in 22Ne(α, γ)26Mg reaction

NUCLEAR REACTIONS 22Ne(α, γ), E=650, 830 keV; measured Eγ, Iγ, γ sum spectra; deduced resonances strength values at 830- and 650 keV. 22Ne(p, γ), E=8510 keV; measured Eγ, Iγ, γ sum spectra; deduced resonance strength value at 851 keV. Beam energy uncertainty - 2 keV. Comparison to previous experimental data. HECTOR (High EffiCiency Total absorption spectrometeR (HECTOR)) array of 16 NaI(Tl) crystals at 1-MV JN positive ion accelerator CASPAR (Compact Accelerator System for Performing Astrophysical Research).

doi: 10.1103/PhysRevC.106.025805
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2808. Data from this article have been entered in the XUNDL database. For more information, click here.


2021DE13      Phys.Rev. C 103, 055815 (2021)

R.J.deBoer, O.Clarkson, A.J.Couture, J.Gorres, F.Herwig, I.Lombardo, P.Scholz, M.Wiescher

19F(p, γ)20Ne and 19F(p, αγ)16O reaction rates and their effect on calcium production in Population III stars from hot CNO breakout

NUCLEAR REACTIONS 19F(p, αγ)16O, E(cm)<865 keV; 19F(p, p), E(cm)=0.5-0.9 MeV; analyzed and evaluated available experimental data for σ(E, θ), differential S factors, angular distributions, R-matrix fit to secondary γ-ray data, secondary on-resonance γ-ray angular distributions. 16O; deduced levels, resonance energies, J, π, Γp, Γα, Γγ. 19F(p, γ)20Ne, E(cm)<0.8 MeV; analyzed and evaluated experimental data for S factor. 20Ne; deduced levels, resonance energies, J, π, resonance strengths, Γp, Γγ, Γα, Γtotal. 19F(p, γ)20Ne, 19F(p, αγ)16O, T=0.01-1 GK; recommended astrophysical reaction rates, and compared with compilation in NACRE database. Phenomenological R-matrix approach. Discussed astrophysical impact of the evaluated data, and recommended further measurements of importance, for example proton transfer studies needed to determine the proton ANCs of proton bound states. Relevance to the presence of Ca in Fe-poor stars in hot CNO breakout H-burning nucleosynthesis.

doi: 10.1103/PhysRevC.103.055815
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2021DU19      Phys.Rev. C 104, 034621 (2021)

S.Dubey, A.Echler, P.Egelhof, P.Grabitz, W.Lauterfeld, M.Mutterer, S.Stolte, A.Blanc, U.Koster, O.Serot, G.Kessedjian, S.Kraft-Bermuth, P.Scholz, S.Bishop, J.M.Gomez-Guzman, F.Gonnenwein

Isotopic distributions of thermal-neutron-induced fission fragments of near-symmetric fission of 239, 241Pu determined using calorimetric low-temperature detectors

NUCLEAR REACTIONS 239,241Pu(n, F)89Se/89Br/90Br/91Br/89Kr/90Kr/91Kr/92Kr/93Kr/94Kr/95Kr/89Rb/90Rb/91Rb/92Rb/93Rb/94Rb/95Rb/96Rb/97Rb/90Sr/91Sr/92Sr/93Sr/94Sr/95Sr/96Sr/97Sr/98Sr/99Sr/100Sr/93Y/94Y/95Y/96Y/97Y/98Y/99Y/100Y/101Y/102Y/96Zr/97Zr/98Zr/99Zr/100Zr/101Zr/102Zr/103Zr/104Zr/105Zr/98Nb/99Nb/100Nb/101Nb/102Nb/103Nb/104Nb/105Nb/106Nb/101Mo/102Mo/103Mo/104Mo/105Mo/106Mo/107Mo/108Mo/109Mo/104Tc/105Tc/106Tc/107Tc/108Tc/109Tc/110Tc/111Tc/112Tc/106Ru/107Ru/108Ru/109Ru/110Ru/111Ru/112Ru/109Rh/110Rh/111Rh/112Rh/112Pd/113Rh/113Pd, E=thermal; measured particle energies, and isotopic distributions for the light fission fragments in A=89-112, Z=36-45 asymmetric to symmetric fission region using calorimetric low-temperature detectors (CLTDs) and the LOHENGRIN spectrometer of the ILL, Grenoble high flux reactor; deduced fractional independent yields, independent yields, charge polarization as a function of the secondary mass, local proton odd-even effect versus nuclear charge number Z, virtual shell effect near Z=44, in analogy to the effect of the Z=50 shell in the complementary heavy fragment group of 239,241Pu. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.104.034621
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23780.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2539. Data from this article have been entered in the XUNDL database. For more information, click here.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2543. Data from this article have been entered in the XUNDL database. For more information, click here.


2021MA65      Phys.Rev.Lett. 127, 182501 (2021)

M.Markova, P.von Neumann-Cosel, A.C.Larsen, S.Bassauer, A.Gorgen, M.Guttormsen, F.L.Bello Garrote, H.C.Berg, M.M.Bjoroen, T.Dahl-Jacobsen, T.K.Eriksen, D.Gjestvang, J.Isaak, M.Mbabane, W.Paulsen, L.G.Pedersen, N.I.J.Pettersen, A.Richter, E.Sahin, P.Scholz, S.Siem, G.M.Tveten, V.M.Valsdottir, M.Wiedeking, F.Zeiser

Comprehensive Test of the Brink-Axel Hypothesis in the Energy Region of the Pygmy Dipole Resonance

NUCLEAR REACTIONS 117Sn(3He, α), E=38 MeV; 120,124Sn(p, p'), E=16 MeV; measured reaction products, Eα, Iα, Ep, Ip, Eγ, Iγ; deduced γ-ray strength functions (GSFs). Oslo method.

doi: 10.1103/PhysRevLett.127.182501
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2020DU13      Phys.Rev. C 102, 044602 (2020)

S.Dubey, A.Echler, P.Egelhof, P.Grabitz, W.Lauterfeld, M.Mutterer, S.Stolte, A.Blanc, U.Koster, O.Serot, G.Kessedjian, S.Kraft-Bermuth, P.Scholz, F.Gonnenwein

Precise 92Rb and 96Y yields for thermal-neutron-induced fission of 235U and 239, 241Pu determined using calorimetric low-temperature detectors

NUCLEAR REACTIONS 235U, 239,241Pu(n, F), E=thermal neutrons from high-flux reactor at ILL-Grenoble; measured fission fragments using the LOHENGRIN mass spectrometer; deduced fractional independent yields per A=92 and A=96, independent yields per fission of A=92 and 96 isotopes of 92Rb, 92Sr, 92Kr, 96Rb, 96Sr, 96Y and 96Zr, and cumulative yields. Comparison with previous experimental results, and with data in evaluated libraries: JENDL-4.0, JEFF-3.3, and ENDF/B-VIII.0, and with GEF theoretical calculations. Relevance to reducing nuclear data uncertainties in the computation of reactor antineutrino spectra by the summation method. Discussed problem of 92Rb β- decay to 92Sr ground-state in the context of discrepancies between previous measurements for fission yields.

doi: 10.1103/PhysRevC.102.044602
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23763.


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
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2516. Data from this article have been entered in the XUNDL database. For more information, click here.


2020SC04      Phys.Rev. C 101, 045806 (2020)

P.Scholz, M.Guttormsen, F.Heim, A.C.Larsen, J.Mayer, D.Savran, M.Spieker, G.M.Tveten, A.V.Voinov, J.Wilhelmy, F.Zeiser, A.Zilges

Primary γ-ray intensities and γ-strength functions from discrete two-step γ-ray cascades in radiative proton-capture experiments

NUCLEAR REACTIONS 63,65Cu(p, γ), E=2.0, 3.5 MeV; measured Eγ, Iγ, γγ-coin, primary γ rays, two-step γ-ray cascades (TSCs) using the HORUS array of 14 HPGe detectors at the Institute for Nuclear Physics, University of Cologne. 64,66Zn; deduced levels, J, π, primary γ-ray intensities, dipole strength functions, and absolute γ-ray strength functions. Comparison with theoretical predictions, generalized Brink-Axel hypothesis, and other experimental results. Relevance of reaction rates of radiative capture reactions to nucleosynthesis of heavy nuclei in explosive stellar environments.

doi: 10.1103/PhysRevC.101.045806
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2020SC12      Phys.Rev. C 102, 045811 (2020)

P.Scholz, H.Wilsenach, H.W.Becker, A.Blazhev, F.Heim, V.Foteinou, U.Giesen, C.Munker, D.Rogalla, P.Sprung, A.Zilges, K.Zuber

New measurement of the 144Sm(α, γ)148Gd reaction rate for the γ process

NUCLEAR REACTIONS 144Sm(α, γ)148Gd, E=10.66-12.66 MeV; measured Eα, Iα from α decay of 148Gd at , σ(E) using activation method by irradiating the 144Sm targets at the cyclotron of PTB-Braunschweig, and α counting at TU-Dresden; deduced astrophysical reaction rates from 1.5-4.5 GK. Comparison with earlier experimental results, and with statistical-model using the TALYS code and the latest parametrizations of α+ nucleus optical model potentials (OMPs). Reaction rates compared with data in Reaclib database.

doi: 10.1103/PhysRevC.102.045811
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0266.


2019FA10      Acta Phys.Pol. B50, 475 (2019)

M.Farber, A.Bohn, V.Everwyn, M.Muscher, S.G.Pickstone, S.Prill, P.Scholz, M.Spieker, M.Weinert, J.Wilhelmy, A.Zilges

Study of Dipole Excitations in 124Sn via (p, p' γ) at 15 MeV

NUCLEAR REACTIONS 124Sn(p, p'), E=15 MeV; measured Ep, Eγ, Iγ, pγ-coin. 124Sn; deduced levels, J, π, γ-decay branching ratios for low-spin states. Combined SONIC (Si-detectors) and HORUS (HPGe-detectors) arrays. Comparison to (γ, γ') and (α, α') experimental data.

doi: 10.5506/aphyspolb.50.475
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2018SP01      Phys.Rev. C 97, 054319 (2018)

M.Spieker, P.Petkov, E.Litvinova, C.Muller-Gatermann, S.G.Pickstone, S.Prill, P.Scholz, A.Zilges

Shape coexistence and collective low-spin states in 112, 114Sn studied with the (p, p'γ) Doppler-shift attenuation coincidence technique

NUCLEAR REACTIONS 112,114Sn(p, p'γ), E=8 MeV; measured Eγ, Iγ, pγ-, γγ-coin, Eγ(θ), level half-lives by DSAM using SONIC-HORUS combined spectroscopy setup at the Institute for Nuclear Physics of the University of Cologne. 112,114Sn; deduced levels, J, π, multipolarities, mixing ratios, B(E2), B(E1) γ-decay branching ratios for low-spin states, shape coexistence in low-spin members of the proton 2p-2h intruder configurations, and candidates for 3-phonon and quadrupole-octupole coupled states. Comparison with previous experimental values, and predictions of the sd IBM-2 calculations. Comparison of B(E2) values with those in 108,110Pd, 116,118Xe. Systematics of low-lying single-particle states in A=111-125 odd-A Sn isotopes, 1-, 3- and 5- states and B(E1) for 1- states in A=112-124 even-A Sn isotopes.

doi: 10.1103/PhysRevC.97.054319
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2018WI07      Phys.Rev. C 98, 034315 (2018)

J.Wilhelmy, A.Brown, P.Erbacher, U.Gayer, J.Isaak, Krishichayan, B.Loher, M.Muscher, H.Pai, N.Pietralla, P.Ries, D.Savran, P.Scholz, M.Spieker, W.Tornow, V.Werner, A.Zilges

Investigation of J=1 states and their γ-decay behavior in 52Cr

NUCLEAR REACTIONS 52Cr(polarized γ, γ'), E=5.5-9.2 MeV; measured Eγ, Iγ of primary and secondary γ rays, energy integrated σ in nuclear resonance fluorescence (NRF) experiments using γ3 array at the HIγS-TUNL facility. 52Cr; deduced levels, J, π, Γ0, γ-branching ratios, B(M1), B(E1), summed M1 strength. Comparison with shell model calculations, and previous experimental results.

doi: 10.1103/PhysRevC.98.034315
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2017KO34      Eur.Phys.J. A 53, 175 (2017)

D.Kocheva, G.Rainovski, J.Jolie, N.Pietralla, A.Blazhev, A.Astier, R.Altenkirch, S.Ansari, Th.Braunroth, M.L.Cortes, A.Dewald, F.Diel, M.Djongolov, C.Fransen, K.Gladnishki, A.Hennig, V.Karayonchev, J.M.Keatings, E.Kluge, J.Litzinger, C.Muller-Gatermann, P.Petkov, M.Rudigier, M.Scheck, Ph.Scholz, P.Spagnoletti, M.Spieker, C.Stahl, R.Stegmann, M.Stoyanova, P.Thole, N.Warr, V.Werner, W.Witt, D.Wolk, K.O.Zell, P.Van Isacker, V.Yu.Ponomarev

A revised B(E2;2+1 → 0+1) value in the semi-magic nucleus 210Po

NUCLEAR REACTIONS 208Pb(12C, 10Be), E=62 MeV; measured Eγ, Iγ(θ), γγ-coin, (particle)γ-coin using 11 HPGe, light reaction fragments using solar cells array. 210Po; deduced 2+1 state T1/2 using the line shape of the transition, branching ratios to this state from upper states, B(E1), B(E2), B(E3), B(M1), T1/2 of three states and transitions; calculated low-lying states energy, structure, B(E1), B(E2), B(E3), B(M1) using QPM (Quasiparticle Phonon Model). Compared with data.

doi: 10.1140/epja/i2017-12367-5
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Data from this article have been entered in the XUNDL database. For more information, click here.


2017KO38      Phys.Rev. C 96, 044305 (2017)

D.Kocheva, G.Rainovski, J.Jolie, N.Pietralla, A.Blazhev, R.Altenkirch, S.Ansari, A.Astier, M.Bast, M.Beckers, Th.Braunroth, M.Cappellazzo, A.Dewald, F.Diel, M.Djongolov, C.Fransen, K.Gladnishki, A.Goldkuhle, A.Hennig, V.Karayonchev, J.M.Keatings, E.Kluge, Th.Kroll, J.Litzinger, K.Moschner, C.Muller-Gatermann, P.Petkov, M.Scheck, Ph.Scholz, T.Schmidt, P.Spagnoletti, C.Stahl, R.Stegmann, A.Stolz, A.Vogt, N.Warr, V.Werner, D.Wolk, J.C.Zamora, K.O.Zell, V.Yu.Ponomarev, P.Van Isacker

Low collectivity of the 2+1 state of 212Po

NUCLEAR REACTIONS 208Pb(12C, 8Be)212Po, E=64 MeV; measured Eγ, Iγ, (particle)γ-coin, half-life of the first 2+ state by recoil-distance Doppler-shift (RDDS) method at the FN Tandem facility of the University of Cologne. 212Po; deduced levels, J, π, B(E2). Comparisons with levels and B(E2) of 210Po and 210Pb, and with theoretical calculations using shell model. Systematics of B(E2) values for the first 2+ states in 20Ne, 44Ti, 52Ti, 136Te, 212Po, nuclei with two valence protons and two valence neutrons.

doi: 10.1103/PhysRevC.96.044305
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Data from this article have been entered in the XUNDL database. For more information, click here.


2017PE14      Phys.Rev. C 96, 034326 (2017); Erratum Phys.Rev. C 98, 019904 (2018)

P.Petkov, C.Muller-Gatermann, A.Dewald, A.Blazhev, C.Fransen, J.Jolie, P.Scholz, K.O.Zell, A.Zilges

Lifetime measurements with improved precision in 30, 32S and possible influence of large-scale clustering on the appearance of strongly deformed states

NUCLEAR REACTIONS 28Si(3He, n)30S, E=8 MeV; 29Si(α, n)32S, E=9 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by Doppler-shift attenuation method (DSAM) using HORUS array of HPGe detectors at the FN Tandem accelerator facility of the University of Cologne. 30,32S; deduced levels, J, π, relative population, B(E2), B(M1). Comparison with previous experimental results for level half-lives, and with two-band mixing calculation. Systematics of low-lying quadrupole states in 28,30,32,34,36,38S. 32S; discussed electromagnetic E2 transition strengths and quadrupole moment in terms of two doubly magic 16O clusters. 80Zr; discussed superdeformed yrast band in terms of two 40Ca clusters.

doi: 10.1103/PhysRevC.96.034326
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Data from this article have been entered in the XUNDL database. For more information, click here.


2017PI13      Nucl.Instrum.Methods Phys.Res. A875, 104 (2017)

S.G.Pickstone, M.Weinert, M.Farber, F.Heim, E.Hoemann, J.Mayer, M.Muscher, S.Prill, P.Scholz, M.Spieker, V.Vielmetter, Ju.Wilhelmy, A.Zilges

Combining α-ray and particle spectroscopy with SONICatHORUS

NUCLEAR REACTIONS 92Mo(p, pγ), E=10.5 MeV; 119Sn(d, pγ), E=10 MeV; 60Ni(p, pγ), E=15 MeV; 94Mo(p, pγ), E=13.5 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, branching ratios.

doi: 10.1016/j.nima.2017.09.016
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016KO03      Phys.Rev. C 93, 011303 (2016)

D.Kocheva, G.Rainovski, J.Jolie, N.Pietralla, C.Stahl, P.Petkov, A.Blazhev, A.Hennig, A.Astier, Th.Braunroth, M.L.Cortes, A.Dewald, M.Djongolov, C.Fransen, K.Gladnishki, V.Karayonchev, J.Litzinger, C.Muller-Gatermann, M.Scheck, Ph.Scholz, R.Stegmann, P.Thole, V.Werner, W.Witt, D.Wolk, P.Van Isacker

Low-lying isovector 2+ valence-shell excitations of 212Po

NUCLEAR REACTIONS 208Pb(12C, 2α)212Po, E=62 MeV; measured Eγ, Iγ, (particle)γ-, γγ-coin, enriched target, level half-lives by DSAM and line-shape analysis using an array of 12 HPGe detectors for γ detection, and solar cell array for reaction products at FN Tandem facility of the University of Cologne. 212Po; deduced levels, J, π, B(M1), B(E2) of second and third 2+ states as candidates for one-phonon mixed-symmetry states (MSS). Comparison with simple single-j shell model calculation. 211Po; observed γ rays. 209,210Po, 208Pb, 209Bi; reaction products measured in coincidence with γ rays.

doi: 10.1103/PhysRevC.93.011303
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016MA25      Phys.Rev. C 93, 045809 (2016)

J.Mayer, S.Goriely, L.Netterdon, S.Peru, P.Scholz, R.Schwengner, A.Zilges

Partial cross sections of the 92Mo(p, γ) reaction and the γ strength in 93Tc

NUCLEAR REACTIONS 92Mo(p, γ)93Tc, E=3.7-5.3 MeV; measured Eγ, Iγ, γ(θ), γγ-coin, total σ(E) for 93Tc ground state and isomer by in-beam method using HORUS array at Cologne FN tandem accelerator facility. 93Tc; deduced levels, J, π, E1 and M1 γ-strength functions. Comparison with previous experimental data for σ(E), and with Hauser-Feshbach calculations by using statistical model code TALYS using Gogny- or Skyrme-HFB+QRPA E1 strength and shell model M1 strength.

doi: 10.1103/PhysRevC.93.045809
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2355. Data from this article have been entered in the XUNDL database. For more information, click here.


2016SC12      Phys.Lett. B 761, 247 (2016)

P.Scholz, F.Heim, J.Mayer, C.Munker, L.Netterdon, F.Wombacher, A.Zilges

Constraints on the α + nucleus optical-model potential via α-induced reaction studies on 108Cd

NUCLEAR REACTIONS 108Cd(α, γ), (α, n), E=12-13.5 MeV; measured reaction products, Eγ, Iγ; deduced σ, optical model potential parameters.

doi: 10.1016/j.physletb.2016.08.040
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2318.


2015NE05      Phys.Rev. C 91, 035801 (2015)

L.Netterdon, J.Mayer, P.Scholz, A.Zilges

Total and partial cross sections of the 112Sn (α, γ) 116Te reaction measured via in-beam γ-ray spectroscopy

NUCLEAR REACTIONS 112Sn(α, γ)116Te, E(cm)=10.1-11.5 MeV; measured Eγ, Iγ, γγ-coin, σ(E) using HORUS array at Cologne, comparison with statistical-model (HFB+QRPA) calculations. 106Cd(α, n), E(cm)=10-12.5 MeV; 106Cd(α, p), E(cm)=9-10.5 MeV; 106Cd(α, γ), E(cm)=7.5-12 MeV; 115,116Sn(α, n), E(cm)=10-15 MeV; 112Sn(α, p), E(cm)=9-12 MeV; comparison of previous experimental data with (TALYS) model calculations. 116Te; deduced levels.

doi: 10.1103/PhysRevC.91.035801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2260.


2015NE07      Phys.Lett. B 744, 358 (2015)

L.Netterdon, A.Endres, S.Goriely, J.Mayer, P.Scholz, M.Spieker, A.Zilges

Experimental constraints on the γ-ray strength function in 90Zr using partial cross sections of the 89Y(p, γ)90Zr reaction

NUCLEAR REACTIONS 89Y(p, γ), E=3.65-4.7 MeV; measured reaction products, Eγ, Iγ; deduced σ, energies, J, π, E1 strength, reaction rates. Comparison with available data.

doi: 10.1016/j.physletb.2015.04.018
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2271.


2014NE13      Phys.Rev. C 90, 035806 (2014)

L.Netterdon, A.Endres, G.G.Kiss, J.Mayer, T.Rauscher, P.Scholz, K.Sonnabend, Zs.Torok, A.Zilges

Cross-section measurement of the 130Ba(p, γ)131La reaction for γ-process nucleosynthesis

NUCLEAR REACTIONS 130Ba(p, γ), E(cm)=3.57-4.96 MeV; measured Eγ, Iγ, σ(E) using activation method at the Institute for Nuclear Physics, Cologne. Comparison with Hauser-Feshbach calculations using TALYS and SMARAGD statistical model codes with different proton+nucleus optical model potentials; deduced stellar reaction rates and compared with results from NONSMOKER code.

doi: 10.1103/PhysRevC.90.035806
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2234.


2014NE18      Nucl.Instrum.Methods Phys.Res. A 754, 94 (2014)

L.Netterdon, V.Derya, J.Endres, C.Fransen, A.Hennig, J.Mayer, C.Muller-Gatermann, A.Sauerwein, P.Scholz, M.Spieker, A.Zilges

The γ-ray spectrometer HORUS and its applications for nuclear astrophysics

NUCLEAR REACTIONS 89Y(p, γ), E=3.5-4.6 MeV; measured products, Eγ, Iγ; deduced σ, σ(E). Data were imported from EXFOR entry O2203.

doi: 10.1016/j.nima.2014.04.025
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2203.


2014SC30      Phys.Rev. C 90, 065807 (2014)

P.Scholz, A.Endres, A.Hennig, L.Netterdon, H.W.Becker, J.Endres, J.Mayer, U.Giesen, D.Rogalla, F.Schluter, S.G.Pickstone, K.O.Zell, A.Zilges

Measurement of the 187Re(α, n)190Ir reaction cross section at sub-Coulomb energies using the Cologne Clover Counting Setup

NUCLEAR REACTIONS 187Re(α, n)190Ir, E=12.4-14.1 MeV; measured Eγ, Iγ, γγ-coin, σ(E) by activation analysis using Cologne Clover counting setup at the cyclotron of PTB in Braunschweig. GEANT4-based Monte Carlo simulation. Comparison with statistical model calculations using the TALYS code and α optical-model potential. Relevance to γ-process nucleosynthesis.

doi: 10.1103/PhysRevC.90.065807
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2251.


2012PI03      Acta Phys.Pol. B43, 319 (2012)

S.G.Pickstone, V.Derya, M.Elvers, J.Endres, C.Fransen, A.Hennig, J.Mayer, L.Netterdon, G.Pascovici, S.Pascu, A.Sauerwein, F.Schluter, P.Scholz, M.Spieker, N.Warr, A.Zilges

Digital Data Acquisition for γ and Particle Spectroscopy

doi: 10.5506/APhysPolB.43.319
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