NSR Query Results
Output year order : Descending NSR database version of March 21, 2024. Search: Author = P.von Neumann-Cosel Found 211 matches. Showing 1 to 100. [Next]2024BA02 Phys.Rev. C 109, 014325 (2024) A.Bahini, P.von Neumann-Cosel, J.Carter, I.T.Usman, N.N.Arsenyev, A.P.Severyukhin, E.Litvinova, R.W.Fearick, R.Neveling, P.Adsley, N.Botha, J.W.Brummer, L.M.Donaldson, S.Jongile, T.C.Khumalo, M.B.Latif, K.C.W.Li, P.Z.Mabika, P.T.Molema, C.S.Moodley, S.D.Olorunfunmi, P.Papka, L.Pellegri, B.Rebeiro, E.Sideras-Haddad, F.D.Smit, S.Triambak, M.Wiedeking, J.J.van Zyl Fine structure of the isoscalar giant monopole resonance in 58Ni, 90Zr, 120Sn, and 208Pb
doi: 10.1103/PhysRevC.109.014325
2023BA03 Phys.Rev. C 107, 034312 (2023) A.Bahini, R.Neveling, P.von Neumann-Cosel, J.Carter, I.T.Usman, P.Adsley, N.Botha, J.W.Brummer, L.M.Donaldson, S.Jongile, T.C.Khumalo, M.B.Latif, K.C.W.Li, P.Z.Mabika, P.T.Molema, C.S.Moodley, S.D.Olorunfunmi, P.Papka, L.Pellegri, B.Rebeiro, E.Sideras-Haddad, F.D.Smit, S.Triambak, M.Wiedeking, J.J.van Zyl Isoscalar giant monopole strength in 58Ni, 90Zr, 120Sn and 208Pb NUCLEAR REACTIONS 58Ni, 90Zr, 120Sn, 208Pb(α, α'), E=196 MeV; measured Eα, Iα, angular distributions; deduced σ(θ, E) at zero and four degrees, isoscalar monopole strength functions. 58Ni, 90Zr, 120Sn, 208Pb; deduced isoscalar giant monopole resonance parameters - centroid energies, widths, EWSR. Difference-of-spectra (DoS) analysis technique. Comparison to other experimental data. K600 magnetic spectrometer at iThemba LABS.
doi: 10.1103/PhysRevC.107.034312
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
2023FE08 Phys. Rev. Res. 5, L022044 (2023) R.W.Fearick, P.von Neumann-Cosel, S.Bacca, J.Birkhan, F.Bonaiti, I.Brandherm, G.Hagen, H.Matsubara, W.Nazarewicz, N.Pietralla, V.Yu.Ponomarev, P.-G.Reinhard, X.Roca-Maza, A.Richter, A.Schwenk, J.Simonis, and A.Tamii Electric dipole polarizability of 40Ca NUCLEAR REACTIONS 40Ca(p, p'), E=5-25 MeV; measured reaction products, Ep, Ip; deduced electric dipole strength distribution, σ(θ, E). Comparison with available data. The Grand Raiden spectrometer, RCNP, Osaka.
doi: 10.1103/PhysRevResearch.5.L022044
2023MA33 Phys.Rev. C 108, 014315 (2023) M.Markova, A.C.Larsen, G.M.Tveten, P.von Neumann-Cosel, T.K.Eriksen, F.L.Bello Garrote, L.Crespo Campo, F.Giacoppo, A.Gorgen, M.Guttormsen, K.Hadynska-Klek, M.Klintefjord, T.Renstrom, E.Sahin, S.Siem, T.G.Tornyi Nuclear level densities and γ-ray strength functions of 111, 112, 113Sn isotopes studied with the Oslo method NUCLEAR REACTIONS 112Sn(p, p'γ), E=25 MeV;112Sn(p, dγ), E=16 MeV;113Sn(d, pγ), E=11.5 MeV; measured reaction products, charged particles, deuteron spectra, Ep, Ip, Eγ, Iγ, pγ-coin, (deuteron)γ-coin. 111,112,113Sn; deduced nuclear level density, experimental entropy, γ-strength functions, parameters of isovector giant dipole resonance, E1 and M1 strength distributions. Oslo method type of analysis. Comparison to the data obtained with different methods and to the data on the other isotopes from Sn chain. All three nuclei demonstrate a trend compatible with the constant-temperature model. CACTUS NaI(Tl) scintillator γ-ray detector array and the Silicon Ring (SiRi) detector array at MC-35 Scanditronix cyclotron.
doi: 10.1103/PhysRevC.108.014315
2022BA04 Phys.Rev. C 105, 024311 (2022) A.Bahini, V.O.Nesterenko, I.T.Usman, P.von Neumann-Cosel, R.Neveling, J.Carter, J.Kvasil, A.Repko, P.Adsley, N.Botha, J.W.Brummer, L.M.Donaldson, S.Jongile, T.C.Khumalo, M.B.Latif, K.C.W.Li, P.Z.Mabika, P.T.Molema, C.S.Moodley, S.D.Olorunfunmi, P.Papka, L.Pellegri, B.Rebeiro, E.Sideras-Haddad, F.D.Smit, S.Triambak, J.J.van Zyl Isoscalar giant monopole resonance in 24Mg and 28Si: Effect of coupling between the isoscalar monopole and quadrupole strength NUCLEAR REACTIONS 24Mg, 28Si(α, α'), E=196 MeV; measured Eα, Iα, angular distributions; deduced σ(θ). 24Mg, 28Si; deduced isoscalar monopole (IS0) strength distribution, coupling between IS0 and isoscalar quadrupole (IS2) strength. Multipole decomposition and DWBA analysis. Comparison with QRPA calculations and with previous experimental data. K600 magnetic spectrometer at iThemba LABS.
doi: 10.1103/PhysRevC.105.024311
2022CA19 Phys.Lett. B 833, 137374 (2022) J.Carter, L.M.Donaldson, H.Fujita, Y.Fujita, M.Jingo, C.O.Kureba, M.B.Latif, E.Litvinova, F.Nemulodi, P.von Neumann-Cosel, R.Neveling, P.Papakonstantinou, P.Papka, L.Pellegri, V.Yu.Ponomarev, A.Richter, R.Roth, E.Sideras-Haddad, F.D.Smit, J.A.Swartz, A.Tamii, R.Trippel, I.T.Usman, H.Wibowo Damping of the isovector giant dipole resonance in 40, 48Ca NUCLEAR REACTIONS 40,48Ca(p, p'), E=200 MeV; measured reaction products; deduced σ(θ, E), Coulomb σ, contributions from the IsoScalar Giant Monopole Resonance (ISGMR) and the ISGQR lying under the IsoVector Giant Dipole Resonance (IVGDR). Comparison with calculations in the framework of RPA and beyond-RPA in a relativistic approach based on an effective meson-exchange interaction, with the UCOM effective interaction. The Separated Sector Cyclotron (SSC) at the iThemba Laboratory for Accelerator Based Sciences (iThemba LABS), Cape Town, South Africa.
doi: 10.1016/j.physletb.2022.137374
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
2022OL03 Phys.Rev. C 105, 054319 (2022) S.D.Olorunfunmi, R.Neveling, J.Carter, P.von Neumann-Cosel, I.T.Usman, P.Adsley, A.Bahini, L.P.L.Baloyi, J.W.Brummer, L.M.Donaldson, H.Jivan, N.Y.Kheswa, K.C.W.Li, D.J.Marin-Lambarri, P.T.Molema, C.S.Moodley, G.G.O'Neill, P.Papka, L.Pellegri, V.Pesudo, E.Sideras-Haddad, F.D.Smit, G.F.Steyn, A.A.Avaa, F.Diel, F.Dunkel, P.Jones, V.Karayonchev Evolution of the isoscalar giant monopole resonance in the Ca isotope chain NUCLEAR REACTIONS Ca, 42,44,48Ca(α, α'), E=196 MeV; measured Eα, Iα; deduced σ(θ), isoscalar giant monopole resonance strength distribution in the 9.5-25.5 MeV range, nucleus incompressibility KA. Analysis with difference-of-spectra (DoS) technique using measurements at 2 different angular covege settings of the spectrometer. Comparison to previous experimental results. K600 magnetic spectrometer at iThemba LABS.
doi: 10.1103/PhysRevC.105.054319
2021CR01 Phys.Lett. B 816, 136210 (2021) F.C.L.Crespi, A.Bracco, E.G.Lanza, A.Tamii, N.Blasi, F.Camera, O.Wieland, N.Aoi, D.L.Balabanski, S.Bassauer, A.S.Brown, M.P.Carpenter, J.J.Carroll, M.Ciemala, A.Czeszumska, P.J.Davies, V.Derya, L.M.Donaldson, Y.D.Fang, H.Fujita, G.Gey, H.T.Ha, M.N.Harakeh, T.Hashimoto, N.Ichige, E.Ideguchi, A.Inoue, J.Isaak, C.Iwamoto, D.G.Jenkins, T.Klaus, N.Kobayashi, T.Koike, M.Krzysiek, M.K.Raju, M.Liu, A.Maj, L.Morris, P.von Neumann-Cosel, S.Noji, H.J.Ong, S.G.Pickstone, N.Pietralla, D.Savran, J.M.Schmitt, M.Spieker, G.Steinhilber, C.Sullivan, B.Wasilewska, M.Weinert, V.Werner, Y.Yamamoto, T.Yamamoto, R.G.T.Zegers, X.Zhou, S.Zhu, A.Zilges The structure of low-lying 1- states in 90, 94Zr from (α, α'γ) and (p, p'γ) reactions NUCLEAR REACTIONS 90,94Zr(p, p'γ), E=80 MeV; 90,94Zr(α, α'γ), E=130 MeV; measured reaction products, Eγ, Iγ; deduced ratio of the measured yields, dipole states σ, transition densities, low-lying dipole strength. The array CAGRA with HPGe detectors.
doi: 10.1016/j.physletb.2021.136210
2021MA04 Phys.Rev. C 103, 014309 (2021) K.L.Malatji, K.S.Beckmann, M.Wiedeking, S.Siem, S.Goriely, A.C.Larsen, K.O.Ay, F.L.Bello Garrote, L.Crespo Campo, A.Gorgen, M.Guttormsen, V.W.Ingeberg, P.Jones, B.V.Kheswa, P.von Neumann-Cosel, M.Ozgur, G.Potel, L.Pellegri, T.Renstrom, G.M.Tveten, F.Zeiser Statistical properties of the well deformed 153, 155Sm nuclei and the scissors resonance NUCLEAR REACTIONS 152Sm(d, pγ)153Sm, E=13.5 MeV; 154Sm(d, pγ)155Sm, E=13 MeV; measured Eγ, Iγ, charged particles, (particle)γ-coin using SiRi particle telescope and CACTUS scintillator arrays at the University of Oslo Cyclotron Laboratory; deduced γ strength functions (γSF) and nuclear level densities (NLD) using the Oslo method and normalized using rigid moment of inertia (RMI) and Hartree-Fock-Bogoliubov plus combinatorial (HFB+comb) models, and extrapolated with the constant temperature (CT) and Fermi gas models, pronounced M1 scissors resonances (SR). Comparison with quasi-particle random phase approximation (QRPA) calculations, with D1M Gogny interaction, and with results of previous experimental results using (d, pγ) and other reactions.
doi: 10.1103/PhysRevC.103.014309
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
2021MO25 Phys.Rev. C 104, 054323 (2021) L.Morris, D.G.Jenkins, M.N.Harakeh, J.Isaak, N.Kobayashi, A.Tamii, S.Adachi, P.Adsley, N.Aoi, A.Bracco, A.Brown, M.P.Carpenter, J.J.Carroll, S.Courtin, F.C.L.Crespi, P.J.Davies, G.Fruet, Y.D.Fang, H.Fujita, G.Gey, T.H.Hoang, N.Ichige, E.Ideguchi, A.Inoue, C.Iwamoto, T.Koike, M.Kumar Raju, M.L.Liu, D.Montanari, P.von Neumann-Cosel, S.Noji, H.J.Ong, D.Savran, J.M.Schmitt, C.Sullivan, B.Wasilewska, M.Weinert, V.Werner, Y.Yamamoto, R.G.T.Zegers, X.H.Zhou, S.Zhu Search for in-band transitions in the candidate superdeformed band in 28Si NUCLEAR REACTIONS 28Si(α, α'), E=130 MeV beam from K140 AVF cyclotron at the RCNP-Osaka; measured Eα, Iα using the Grand Raiden spectrometer, Eγ, Iγ, γγ-coin using CAGRA array of 12 HPGe clover detectors and four LaBr3 detectors. 28Si; deduced levels, J, π, bands; analyzed 4+ member in search of a superdeformed (SD) band, branching ratios of γ rays from the 4+ member, and B(E2); based on comparison of experimental B(E2) values with predicted B(E2) values from antisymmetrized molecular dynamics (AMD) calculations for a set of identified states in 28Si, strongly rejected hypothesized superdeformed band in this nuclide.
doi: 10.1103/PhysRevC.104.054323
2021ZA06 Phys.Rev. C 104, 014607 (2021) J.C.Zamora, C.Sullivan, R.G.T.Zegers, N.Aoi, L.Batail, D.Bazin, M.Carpenter, J.J.Carroll, Y.D.Fang, H.Fujita, U.Garg, G.Gey, C.J.Guess, M.N.Harakeh, T.H.Hoang, E.Hudson, N.Ichige, E.Ideguchi, A.Inoue, J.Isaak, C.Iwamoto, C.Kacir, N.Kobayashi, T.Koike, M.Kumar Raju, S.Lipschutz, M.Liu, P.von Neumann-Cosel, S.Noji, H.J.Ong, S.Peru, J.Pereira, J.Schmitt, A.Tamii, R.Titus, V.Werner, Y.Yamamoto, X.Zhou, S.Zhu Investigation of the isoscalar response of 24Mg to 6Li scattering NUCLEAR REACTIONS 24Mg(6Li, 6Li'), E=100 MeV/nucleon; measured scattered 6Li particles, σ(θ) using Grand Raiden spectrometer and two position-sensitive multiwire drift chambers (MWDCs) and three plastic scintillators for particle identification and reconstructing their trajectories at RCNP-Osaka University; deduced differential σ(E, Q), angular momentum transfers by fitting with multipole-decomposition analysis (MDA) using DWBA calculations for angular-momentum transfers. 24Mg; deduced energies, widths, EWSR, isoscaler giant monopole resonance (ISGMR), isoscaler giant monopole resonance (ISGDR), isoscaler giant quadrupole resonance (ISGQR) strength functions from Lorentzian fits to data. Comparison with antisymmetrized molecular dynamics (AMD) calculations, and with previous experimental data.
doi: 10.1103/PhysRevC.104.014607
2020BA47 Phys.Rev. C 102, 034327 (2020) S.Bassauer, P.von Neumann-Cosel, P.-G.Reinhard, A.Tamii, S.Adachi, C.A.Bertulani, P.Y.Chan, A.D'Alessio, H.Fujioka, H.Fujita, Y.Fujita, G.Gey, M.Hilcker, T.H.Hoang, A.Inoue, J.Isaak, C.Iwamoto, T.Klaus, N.Kobayashi, Y.Maeda, M.Matsuda, N.Nakatsuka, S.Noji, H.J.Ong, I.Ou, N.Pietralla, V.Yu.Ponomarev, M.S.Reen, A.Richter, M.Singer, G.Steinhilber, T.Sudo, Y.Togano, M.Tsumura, Y.Watanabe, V.Werner Electric and magnetic dipole strength in 112, 114, 116, 118, 120, 124Sn NUCLEAR REACTIONS 112,114,116,118,120,124Sn(p, p'), E=295 MeV; measured E(p), I(p), particle spectra through identification via the correlation of energy loss and time of flight (ToF), double differential σ(θ, E(exc)) using Grand Raiden spectrometer at RCNP accelerator facility; deduced photoabsorption cross sections due to E1 and M1 excitations from multipole decomposition analysis (MDA) after subtraction of the ISGMR and ISGQR contributions, σ, energy and width of isovector giant dipole resonance (IVGDR), B(E1) and B(M1) strengths in the excitation energy range of 6-20 MeV, dipole polarizability. Comparison with previous experimental results from (γ, xn) and (γ, γ') experiments.
doi: 10.1103/PhysRevC.102.034327
2020BA50 Phys.Lett. B 810, 135804 (2020) S.Bassauer, P.von Neumann-Cosel, P.-G.Reinhard, A.Tamii, S.Adachi, C.A.Bertulani, P.Y.Chan, G.Colo, A.D'Alessio, H.Fujioka, H.Fujita, Y.Fujita, G.Gey, M.Hilcker, T.H.Hoang, A.Inoue, J.Isaak, C.Iwamoto, T.Klaus, N.Kobayashi, Y.Maeda, M.Matsuda, N.Nakatsuka, S.Noji, H.J.Ong, I.Ou, N.Paar, N.Pietralla, V.Yu.Ponomarev, M.S.Reen, A.Richter, X.Roca-Maza, M.Singer, G.Steinhilber, T.Sudo, Y.Togano, M.Tsumura, Y.Watanabe, V.Werner Evolution of the dipole polarizability in the stable tin isotope chain NUCLEAR REACTIONS 112,114,116,118,120,124Sn(p, p'), E=295 MeV; 116Sn(γ, X), E<30 MeV; measured reaction products, Ep, Ip; deduced σ(θ, E), σ, total dipole polarizability. Comparison with available data.
doi: 10.1016/j.physletb.2020.135804
2020DA10 Phys.Rev. C 102, 011302 (2020) A.D'Alessio, T.Mongelli, M.Arnold, S.Bassauer, J.Birkhan, I.Brandherm, M.Hilcker, T.Huther, J.Isaak, L.Jurgensen, T.Klaus, M.Mathy, P.von Neumann-Cosel, N.Pietralla, V.Yu.Ponomarev, P.C.Ries, R.Roth, M.Singer, G.Steinhilber, K.Vobig, V.Werner Precision measurement of the E2 transition strength to the 2+1 state of 12C NUCLEAR REACTIONS 12C(e, e'), E=42.5 MeV; measured scattered E(e), I(e) using the LINTOTT spectrometer at the Darmstadt S-DALINAC facility; deduced form factor, B(E2) and quadrupole moment for the first 2+ state in 12C. Comparison in-medium no-core shell model (IM-NCSM) calculations with NLO to N3LO interactions, and with previous experimental results.
doi: 10.1103/PhysRevC.102.011302
2020DO11 Phys.Rev. C 102, 064327 (2020) L.M.Donaldson, J.Carter, P.von Neumann-Cosel, V.O.Nesterenko, R.Neveling, P.-G.Reinhard, I.T.Usman, P.Adsley, C.A.Bertulani, J.W.Brummer, E.Z.Buthelezi, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Fujita, M.Jingo, N.Y.Kheswa, W.Kleinig, C.O.Kureba, J.Kvasil, M.Latif, K.C.W.Li, J.P.Mira, F.Nemulodi, P.Papka, L.Pellegri, N.Pietralla, V.Yu.Ponomarev, B.Rebeiro, A.Richter, N.Yu.Shirikova, E.Sideras-Haddad, A.V.Sushkov, F.D.Smit, G.F.Steyn, J.A.Swartz, A.Tamii Fine structure of the isovector giant dipole resonance in 142-150Nd and 152Sm NUCLEAR REACTIONS 142,144,146,148,150Nd, 152Sm(p, p'), E=200 MeV from the Separated Sector Cyclotron (SSC) at iThemba LABS; measured reaction products, E(p), I(p), time-of-flight using the K600 magnetic spectrometer, two multiwire drift chambers (MWDCs) and two plastic scintillators; deduced double-differential σ(E*=10-22 MeV), equivalent photoabsorption spectra, excitation-energy spectra, wavelet power spectra, fine structure of the isovector giant-dipole resonance (IVGDR), fragmentation of the one-particle-one-hole (1p1h) strength into several dominant transitions serving as doorway states in the spherical and intermediate spherical/deformed nuclei. Comparison with predictions of quasiparticle phonon model (QPM), and Skyrme separable random phase approximation (SSRPA).
doi: 10.1103/PhysRevC.102.064327
2020ZA05 Phys.Rev. C 101, 064609 (2020) J.C.Zamora, C.Sullivan, R.G.T.Zegers, N.Aoi, L.Batail, D.Bazin, M.Carpenter, J.J.Carroll, I.Deloncle, Y.D.Fang, H.Fujita, U.Garg, G.Gey, C.J.Guess, M.N.Harakeh, T.H.Hoang, E.Hudson, N.Ichige, E.Ideguchi, A.Inoue, J.Isaak, C.Iwamoto, C.Kacir, N.Kobayashi, T.Koike, M.Kumar Raju, S.Lipschutz, M.Liu, P.von Neumann-Cosel, S.Noji, H.J.Ong, S.Peru, J.Pereira, J.Schmitt, A.Tamii, R.Titus, V.Werner, Y.Yamamoto, X.Zhou, S.Zhu Reexamination of isoscalar giant resonances in 12C and 93Nb through 6Li scattering NUCLEAR REACTIONS 12C, 93Nb(6Li, 6Li'), E=100 MeV/nucleon; measured 6Li spectra, double-differential σ, and angular distributions for the isoscalar giant monopole resonances (ISGMRs) using the high-resolution Grand Raiden magnetic spectrometer at the RCNP-Osaka facility; deduced contribution of different angular momentum transfers to differential σ, energies, widths and E0 strength distribution of GMRs, EWSR, influence on GMRs due to nuclear structure. Angular distribution data fitted using multipole-decomposition analysis (MDA) and DWBA methods. Comparison with antisymmetrized molecular dynamics (AMD) calculations, and with previous experimental data.
doi: 10.1103/PhysRevC.101.064609
2019LA24 Acta Phys.Pol. B50, 461 (2019) M.B.Latif, I.T.Usman, J.Carter, E.Sideras-Haddad, L.M.Donaldson, M.Jingo, C.O.Kureba, L.Pellegri, R.Neveling, F.D.Smit, F.Nemulodi, P.von Neumann-Cosel, Y.Yu.Ponomarev, P.Papka, J.A.Swartz, G.R.J.Cooper, H.Fujita, P.Papakonstantinou, E.Litvinova Evolution of the IVGDR and Its Fine Structure from Doubly-magic 40Ca to Neutron-rich 48Ca Probed Using (p, p') Scattering NUCLEAR REACTIONS 40,42,44,48Ca(p, p'), E=200 MeV; measured reaction products, Ep, Ip; deduced σ(θ), photoabsorption σ, structure of Isovector Giant Dipole Resonance; calculated photoabsorpion σ using RQTBA, RQRPA and QRPA approaches. Wavelet analysis of the data.
doi: 10.5506/aphyspolb.50.461
2019VO07 Eur.Phys.J. A 55, 110 (2019) Electric and magnetic dipole modes in high-resolution inelastic proton scattering at 0 degrees
doi: 10.1140/epja/i2019-12781-7
2019VO14 Eur.Phys.J. A 55, 224 (2019) P.von Neumann-Cosel, V.Yu.Ponomarev, A.Richter, J.Wambach Gross, intermediate and fine structure of nuclear giant resonances: Evidence for doorway states
doi: 10.1140/epja/i2019-12795-1
2019VO16 Acta Phys.Pol. B50, 439 (2019) Fine Structure of Giant Resonances: What Can Be Learned NUCLEAR REACTIONS 208Pb(e, e'), E=not given; analyzed available data; deduced structure features of isoscalar giant quadruple resonance, K-splitting of ISGQR using wavelet analysis. 90Zr(3He, t)90Nb, E not given; analyzed structure of Gamow-Teller resonance. 90Nb; deduced level density. Fluctuation analysis.
doi: 10.5506/aphyspolb.50.439
2018DO01 Phys.Lett. B 776, 133 (2018) L.M.Donaldson, C.A.Bertulani, J.Carter, V.O.Nesterenko, P.von Neumann-Cosel, R.Neveling, V.Yu.Ponomarev, P.-G.Reinhard, I.T.Usman, P.Adsley, J.W.Brummer, E.Z.Buthelezi, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Fujita, M.Jingo, W.Kleinig, C.O.Kureba, J.Kvasil, M.Latif, K.C.W.Li, J.P.Mira, F.Nemulodi, P.Papka, L.Pellegri, N.Pietralla, A.Richter, E.Sideras-Haddad, F.D.Smit, G.F.Steyn, J.A.Swartz, A.Tamii Deformation dependence of the isovector giant dipole resonance: The neodymium isotopic chain revisited NUCLEAR REACTIONS 144,146,148,150Nd, 152Sm(p, p'), E=200 MeV; measured reaction products, Eγ, Iγ; deduced σ, σ(θ, E), σ(θ). Comparison with DWBA calculations.
doi: 10.1016/j.physletb.2017.11.025
2018FE06 Phys.Rev. C 97, 044325 (2018) R.W.Fearick, B.Erler, H.Matsubara, P.von Neumann-Cosel, A.Richter, R.Roth, A.Tamii Origin of fine structure of the giant dipole resonance in sd-shell nuclei NUCLEAR REACTIONS 24Mg, 28Si, 32S, 40Ca(p, p'), E=295 MeV; analyzed experimental spectra encompassing giant-dipole resonance (GDR), and B(E1) strength distributions. Multipole decomposition and wavelet analysis; deduced fine structure of the GDR, wavelet power spectra from experimental data. Random phase approximation (RPA) calculations on a deformed ground state with a realistic nucleon-nucleon interaction. B(E1) strength distributions and wavelet power spectra computed in HFB+QRPA approach with D1S Gogny force.
doi: 10.1103/PhysRevC.97.044325
2018JI10 Eur.Phys.J. A 54, 234 (2018) M.Jingo, E.Z.Buthelezi, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, C.O.Kureba, A.M.Krumbholz, P.von Neumann-Cosel, R.Neveling, P.Papka, I.Poltoratska, V.Yu.Ponomarev, A.Richter, E.Sideras-Haddad, F.D.Smit, J.A.Swartz, A.Tamii, I.T.Usman Studies of the Giant Dipole Resonance in 27Al , 40Ca , 56Fe , 58Ni and 208Pb with high energy-resolution inelastic proton scattering under 0 degree NUCLEAR REACTIONS 27Al, 40Ca, 56Fe, 58Ni, 208Pb(p, p'), E=200 MeV; measured Ep, Ip(θ) using two Vertical Drift Chambers and two plastic scintillators behind them; deduced σ(E, θ), IsoVector Giant Dipole Resonance (IVGDR) energy, Coulomb excitation σ vs E*, equivalent photoabsorption σ, IVGDR fine structure using Continuous Wavelet Transform (CWT) and Discrete Wavelet Transform (DWT); calculated equivalent photoabsorption σ using Quasiparticle-Phonon Model (QPM) with (1+2)-phonon and 1-phonon model spaces, power spectra from CWT analysis.
doi: 10.1140/epja/i2018-12664-5
2018SU14 Phys.Rev. C 98, 015804 (2018) C.Sullivan, R.G.T.Zegers, S.Noji, SamM.Austin, J.Schmitt, N.Aoi, D.Bazin, M.Carpenter, J.J.Carroll, H.Fujita, U.Garg, G.Gey, C.J.Guess, T.H.Hoang, M.N.Harakeh, E.Hudson, N.Ichige, E.Ideguchi, A.Inoue, J.Isaak, C.Iwamoto, C.Kacir, T.Koike, N.Kobayashi, S.Lipschutz, M.Liu, P.von Neumann-Cosel, H.J.Ong, J.Pereira, M.Kumar Raju, A.Tamii, R.Titus, V.Werner, Y.Yamamoto, Y.D.Fang, J.C.Zamora, S.Zhu, X.Zhou The (6Li, 6Li* [3.56 MeV]) reaction at 100 MeV/u as a probe of Gamow-Teller transition strengths in the inelastic scattering channel NUCLEAR REACTIONS 12C(6Li, 6Li'), E=100 MeV/nucleon; measured Eγ, Iγ, 6Li scattered particles, (6Li)γ-coin, double differential σ(θ, Eex) using CAGRA detector array for γ detection, and Grand Raiden magnetic spectrometer for analysis of charged particles at RCNP-Osaka; deduced Doppler-corrected (6Li)γ-coin spectrum, Gamow-Teller strengths, and isovector spin-transfer response in inelastic reaction channel by tagging the reaction with the 3.56-MeV γ-ray from the excited state of 6Li. 24Mg, 93Nb(6Li, 6Li'), E=100 MeV/nucleon; reactions used for calibration, also it was not possible to isolate the isovector spin transfer excitations in the inelastic channel.
doi: 10.1103/PhysRevC.98.015804
2017BI09 Phys.Rev.Lett. 118, 252501 (2017) J.Birkhan, M.Miorelli, S.Bacca, S.Bassauer, C.A.Bertulani, G.Hagen, H.Matsubara, P.von Neumann-Cosel, T.Papenbrock, N.Pietralla, V.Yu.Ponomarev, A.Richter, A.Schwenk, A.Tamii Electric Dipole Polarizability of 48Ca and Implications for the Neutron Skin NUCLEAR REACTIONS 48Ca(p, p'), E=295 MeV; 48Ca(γ, X), E<25 MeV; measured reaction products; deduced σ, electric dipole polarizability, B(E1).
doi: 10.1103/PhysRevLett.118.252501
2017MA28 Phys.Rev. C 95, 054316 (2017) M.Mathy, J.Birkhan, H.Matsubara, P.von Neumann-Cosel, N.Pietralla, V.Yu.Ponomarev, A.Richter, A.Tamii Search for weak M1 transitions in 48Ca with inelastic proton scattering NUCLEAR REACTIONS 48Ca(p, p'), E=295 MeV; measured Ep, Ip, σ(θ) using Grand Raiden spectrometer at RCNP-Osaka. Multipole decomposition analysis (MDA) of experimental data. 48Ca; deduced levels, J, π, B(M1), quenching factors of GT and spin-M1 strength in fp-shell nuclei, negligible role of meson-exchange currents. Comparison with previous experimental (e, e'), and evaluated data.
doi: 10.1103/PhysRevC.95.054316
2017MA67 Phys.Rev.Lett. 119, 182503 (2017) D.Martin, P.von Neumann-Cosel, A.Tamii, N.Aoi, S.Bassauer, C.A.Bertulani, J.Carter, L.Donaldson, H.Fujita, Y.Fujita, T.Hashimoto, K.Hatanaka, T.Ito, A.Krugmann, B.Liu, Y.Maeda, K.Miki, R.Neveling, N.Pietralla, I.Poltoratska, V.Yu.Ponomarev, A.Richter, T.Shima, T.Yamamoto, M.Zweidinger Test of the Brink-Axel Hypothesis for the Pygmy Dipole Resonance NUCLEAR REACTIONS 96Mo(polarized p, p'), E=295 MeV; measured reaction products, Ep, Ip; deduced σ(θ), σ(θ, E), gamma strength functions.
doi: 10.1103/PhysRevLett.119.182503
2017WI16 Phys.Rev. C 96, 064309 (2017) K.Win, Y.Fujita, Y.Y.Oo, H.Fujita, Y.F.Niu, T.Adachi, G.P.A.Berg, G.Colo, H.Dohmann, M.Dozono, D.Frekers, E.-W.Grewe, K.Hatanaka, D.Ishikawa, R.Kehl, N.T.Khai, Y.Kalmykov, H.Matsubara, P.von Neumann-Cosel, T.Niizeki, T.Ruhe, Y.Shimbara, K.Suda, A.Tamii, J.Thies, H.P.Yoshida High-resolution study of Tz = +1 → 0 Gamow-Teller transitions in the 26Mg (3He, t)26Al reaction NUCLEAR REACTIONS 26Mg(3He, t), E=140 MeV/nucleon; measured triton spectra, σ(θ) using the Grand Raiden spectrometer at RCNP, Japan. 26Al; deduced levels, L-transfers, J, π, widths, analog states, Gamow-Teller transitions, B(GT) strengths. Comparison with previous experimental data, evaluated data in the ENSDF database, and with theoretical calculations using random phase approximation. Discussed isospin symmetry of T=2 Gamow-Teller states by comparing with the results of 26Mg(d, 2He), (t, 3He)26Na reactions.
doi: 10.1103/PhysRevC.96.064309
2016BA61 Phys.Rev. C 94, 054313 (2016) S.Bassauer, P.von Neumann-Cosel, A.Tamii γ strength function and level density of 208Pb from forward-angle proton scattering at 295 MeV NUCLEAR REACTIONS 208Pb(p, p'), E=295 MeV; analyzed E1 and M1 γ strength functions (GSFs) and level densities (LDs) using standard Lorentzian (SLO), modified Lorentzian (MLO) and enhanced generalized Lorentzian (EGLO) models in the PDR and GDR excitation regions with data taken from RIPL-3 database. Comparison with Oslo-type experiment to examine the validity of Brink-Axel (BA) hypothesis; deduced total level density for 208Pb.
doi: 10.1103/PhysRevC.94.054313
2016BE25 Phys.Rev. C 94, 034618 (2016) F.Bellemann, A.Berg, J.Bisplinghoff, G.Bohlscheid, J.Ernst, C.Henrich, F.Hinterberger, R.Ibald, R.Jahn, R.Joosten, K.Kilian, A.Kozela, H.Machner, A.Magiera, J.Munkel, P.von Neumann-Cosel, P.von Rossen, H.Schnitker, K.Scho, J.Smyrski, R.Tolle, C.Wilkin Experimental study of the pd(dp) → 3He ππ reactions close to threshold NUCLEAR REACTIONS 1H(d, 3Heπ+π-), 2H(p, 3Heπ+π-), at Q<100 MeV; measured 3He using high-resolution spectrograph Big Kar, and charged pion spectra using MOMO detector at COSY accelerator facility in Julich, ΔE-E and time-of-flight (TOF) measurements for particle identification, differential σ as function of kinetic energy of pions; deduced estimate of π0π0 production. Comparison with previous experimental data, and with predictions of two-step model.
doi: 10.1103/PhysRevC.94.034618
2016BI05 Phys.Rev. C 93, 041302 (2016) J.Birkhan, H.Matsubara, P.von Neumann-Cosel, N.Pietralla, V.Yu.Ponomarev, A.Richter, A.Tamii, J.Wambach Electromagnetic M1 transition strengths from inelastic proton scattering: The cases of 48Ca and 208Pb NUCLEAR REACTIONS 48Ca(p, p'), E=295 MeV; analyzed σ(θ) for dominating peak at 10.23 MeV ascribed to isovector spin-flip M1 (IVSM1) resonance; deduced B(M1) using a method based on isospin symmetry. Comparison with B(M1) deduced from (p, p') at 201 MeV, (p, n) at 295 MeV, (e, e') and (γ, n) data. 208Pb(p, p'), (n, n'γ), (polarized γ, γ'); analyzed B(M1) strengths in 6.5-9 MeV excitation region. Quenching phenomenon of the spin-isospin response. Method for extracting systematic information on the IVSM1 resonances in heavy nuclei.
doi: 10.1103/PhysRevC.93.041302
2016KR07 Phys.Rev.Lett. 117, 172503 (2016) C.Kremer, S.Aslanidou, S.Bassauer, M.Hilcker, A.Krugmann, P.von Neumann-Cosel, T.Otsuka, N.Pietralla, V.Yu.Ponomarev, N.Shimizu, M.Singer, G.Steinhilber, T.Togashi, Y.Tsunoda, V.Werner, M.Zweidinger First Measurement of Collectivity of Coexisting Shapes Based on Type II Shell Evolution: The Case of 96Zr NUCLEAR REACTIONS 96Zr(E, E'), E=43 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, B(E2). Comparison with the shell-model calculations and a two-state model with and without mixing.
doi: 10.1103/PhysRevLett.117.172503
2016US03 Phys.Rev. C 94, 024308 (2016) I.T.Usman, Z.Buthelezi, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Fujita, P.von Neumann-Cosel, R.Neveling, P.Papakonstantinou, I.Pysmenetska, A.Richter, R.Roth, E.Sideras-Haddad, F.D.Smit Fine structure of the isoscalar giant quadrupole resonance in 28Si and 27Al NUCLEAR REACTIONS 27Al, Si(p, p'), E=200 MeV; measured scattered proton spectra, angular distributions using K600 magnetic spectrometer of iThemba LABS. 27Al, 28Si; deduced levels and resonances between 6-30 MeV excitation, isoscalar giant quadrupole resonance (ISGQR), E2 strength distributions, continuous wavelet transform (CWT) power spectra. Wavelet analysis. Comparison with random phase approximation (RPA), and second-RPA (SRPA) calculations with realistic interaction from unitary correlation operator method (UCOM). Comparison with (α, α') and (e, e') data.
doi: 10.1103/PhysRevC.94.024308
2016VO03 Phys.Rev. C 93, 049801 (2016) Comment on 'New formulas for the (-2) moment of the photoabsorption cross section, σ-2" NUCLEAR STRUCTURE A=3-250; analyzed second inverse moment (σ2) data from relativistic Coulomb excitation experiments for 208Pb, 120Sn and 68Ni, and from total photoabsorption experiments for 40Ca, 27Al, 16O, and 12C by fitting the data with and without 12C; deduced that experimental values used in 2015Or04 paper were systematically too small in heavy nuclei by about 5-10% due to neglected contribution from E1 strength (PDR), and that better fits obtained using different parameters for mass number dependence of σ2 to volume and surface coefficients of the symmetry energy.
doi: 10.1103/PhysRevC.93.049801
2015HA21 Phys.Rev. C 92, 031305 (2015) T.Hashimoto, A.M.Krumbholz, P.-G.Reinhard, A.Tamii, P.von Neumann-Cosel, T.Adachi, N.Aoi, C.A.Bertulani, H.Fujita, Y.Fujita, E.Ganioglu, K.Hatanaka, E.Ideguchi, C.Iwamoto, T.Kawabata, N.T.Khai, A.Krugmann, D.Martin, H.Matsubara, K.Miki, R.Neveling, H.Okamura, H.J.Ong, I.Poltoratska, V.Yu.Ponomarev, A.Richter, H.Sakaguchi, Y.Shimbara, Y.Shimizu, J.Simonis, F.D.Smit, G.Susoy, T.Suzuki, J.H.Thies, M.Yosoi, J.Zenihiro Dipole polarizability of 120Sn and nuclear energy density functionals NUCLEAR REACTIONS 120Sn(polarized p, p'), E=295 MeV; measured scattered proton spectra, p(θ) using Grand Raiden spectrometer at RCNP-Osaka; analyzed polarization transfer observables; deduced ISGQR excitation, B(E1), precise electric dipole polarizability αD, nuclear symmetry energy and its density dependence. Comparison with other experimental data. Comparison with model calculations based on Skyrme interactions and on relativistic Hamiltonians.
doi: 10.1103/PhysRevC.92.031305
2015KR05 Phys.Lett. B 744, 7 (2015) A.M.Krumbholz, P.von Neumann-Cosel, T.Hashimoto, A.Tamii, T.Adachi, C.A.Bertulani, H.Fujita, Y.Fujita, E.Ganioglu, K.Hatanaka, C.Iwamoto, T.Kawabata, N.T.Khai, A.Krugmann, D.Martin, H.Matsubara, R.Neveling, H.Okamura, H.J.Ong, I.Poltoratska, V.Yu.Ponomarev, A.Richter, H.Sakaguchi, Y.Shimbara, Y.Shimizu, J.Simonis, F.D.Smit, G.Susoy, J.H.Thies, T.Suzuki, M.Yosoi, J.Zenihiro Low-energy electric dipole response in 120Sn NUCLEAR REACTIONS 120Sn(p, p'), E=295 MeV; measured reaction products, Ep, Ip; deduced σ, σ(θ, E), B(E1). Comparison with available data.
doi: 10.1016/j.physletb.2015.03.023
2015MA48 Phys.Rev.Lett. 115, 102501 (2015) H.Matsubara, A.Tamii, H.Nakada, T.Adachi, J.Carter, M.Dozono, H.Fujita, K.Fujita, Y.Fujita, K.Hatanaka, W.Horiuchi, M.Itoh, T.Kawabata, S.Kuroita, Y.Maeda, P.Navratil, P.von Neumann-Cosel, R.Neveling, H.Okamura, L.Popescu, I.Poltoratska, A.Richter, B.Rubio, H.Sakaguchi, S.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimbara, Y.Shimizu, F.D.Smit, K.Suda, Y.Tameshige, H.Tokieda, Y.Yamada, M.Yosoi, J.Zenihiro Nonquenched Isoscalar Spin-M1 Excitations in sd-Shell Nuclei NUCLEAR REACTIONS 24Mg, 28Si, 32S, 36Ar(p, p'), E=295 MeV; measured reaction products, Ep, Ip; deduced σ(θ), σ(θ, E), the squared spin M1 nuclear transition matrix elements, no quenching for isoscalar spin M1 transitions, while the matrix elements for isovector spin M1 transitions are quenched by an amount comparable with the analogous Gamow-Teller transitions on those target nuclei. Comparison with no-core shell model (NCSM) calculations.
doi: 10.1103/PhysRevLett.115.102501
2014EF01 Phys.Rev. C 89, 027301 (2014) V.D.Efros, P.von Neumann-Cosel, A.Richter Properties of the first excited state of 9Be derived from (γ, n) and (e, e') reactions NUCLEAR REACTIONS 9Be(e, e'), E not given; 9Be(γ, n), E<2.21 MeV; deduced level energy and width of the first excited state in 9Be, B(E1) strength of decay of near-threshold 1/2+ resonance to ground state. R-matrix approach.
doi: 10.1103/PhysRevC.89.027301
2014OZ03 Phys.Rev. C 90, 024304 (2014) B.Ozel-Tashenov, J.Enders, H.Lenske, A.M.Krumbholz, E.Litvinova, P.von Neumann-Cosel, I.Poltoratska, A.Richter, G.Rusev, D.Savran, N.Tsoneva Low-energy dipole strength in 112, 120Sn NUCLEAR REACTIONS 112Sn(γ, γ'), E(endpoint)=5.5, 7.5, 9.5 MeV bremsstrahlung; 120Sn(γ, γ'), E(endpoint)=7.5, 9.1 MeV bremsstrahlung; measured Eγ, Iγ, γ(θ) using S-DALINAC NRF facility at the TU Darmstadt. 112,120Sn; deduced levels, Γ02/Γ, B(E1), summed B(E1) strengths. Fluctuation analysis of γ spectra for unresolved strength. Comparison with quasiparticle-phonon model, and relativistic time blocking approximations (RQTBA), and previous experimental results.
doi: 10.1103/PhysRevC.90.024304
2014PO03 Phys.Rev. C 89, 054322 (2014) I.Poltoratska, R.W.Fearick, A.M.Krumbholz, E.Litvinova, H.Matsubara, P.von Neumann-Cosel, V.Yu.Ponomarev, A.Richter, A.Tamii Fine structure of the isovector giant dipole resonance in 208Pb: Characteristic scales and level densities NUCLEAR REACTIONS 208Pb(p, p'), E=295 MeV; analyzed experimental data obtained using Grand-Raiden spectrometer at RCNP facility, double-differential σ(θ), continuous and discrete wavelet transform (CWT, DWT) analysis of excitation energy spectrum, extraction of scales for the observed fine structure in isovector-giant dipole resonance (IVGDR), level density of 1- states in IVGDR region, GDR width, B(E1) strength. Comparison with theoretical predictions.
doi: 10.1103/PhysRevC.89.054322
2014SC04 Phys.Rev. C 89, 037301 (2014) A.Scheikh-Obeid, S.Aslanidou, J.Birkhan, A.Krugmann, P.von Neumann-Cosel, N.Pietralla, I.Poltoratska, V.Yu.Ponomarev B(E2) strength ratio of one-phonon 2+ states of 94Zr from electron scattering at low momentum transfer NUCLEAR REACTIONS 94Zr(e, e'), E=71 MeV; measured electron spectra at four angles at S-DALINAC facility; deduced levels, B(E2) for second 2+ state. PWBA analysis. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.89.037301
2014TA05 Eur.Phys.J. A 50, 28 (2014) A.Tamii, P.von Neumann-Cosel, I.Poltoratska Electric dipole response of 208Pb from proton inelastic scattering: Constraints on neutron skin thickness and symmetry energy NUCLEAR REACTIONS 208Pb(pol p, p'), E=295 MeV; measured Ep, Ip(θ), proton polarization using DSR (dipole-spin rotation) magnet; deduced σ(θ). 208Pb deduced B(E1) strength distribution, dipole polarizability, neutron skin thickness, constraints on symmetry energy. Compared with other results.
doi: 10.1140/epja/i2014-14028-7
2013PA38 Phys.Rev. C 88, 054316 (2013) H.Pai, J.Beller, N.Benouaret, J.Enders, T.Hartmann, O.Karg, P.von Neumann-Cosel, N.Pietralla, V.Yu.Ponomarev, C.Romig, M.Scheck, L.Schnorrenberger, S.Volz, M.Zweidinger Low-lying dipole strength in the N=28 shell-closure nucleus 52Cr NUCLEAR REACTIONS 52Cr(γ, γ'), E<9.9 MeV; measured Eγ, Iγ, γ(θ), integrated cross sections using bremsstrahlung beam at the superconducting Darmstadt linear electron accelerator S-DALINAC. 52Cr; deduced levels, PDR, J, π, Γ0, B(E1), B(M1), reduced transition widths. Comparison with microscopic QPM calculations.
doi: 10.1103/PhysRevC.88.054316
2013PI07 J.Phys.:Conf.Ser. 445, 012030 (2013) N.Pietralla, C.Bauer, J.Leske, O.Moller, T.Moller, P.von Neumann-Cosel, G.Rainovski, A.Scheikh-Obeid, C.Walz Exotic ideas on mixed proton-neutron symmetry and their manifestation in heavy nuclei
doi: 10.1088/1742-6596/445/1/012030
2013SC01 Phys.Rev. C 87, 014337 (2013) A.Scheikh-Obeid, O.Burda, M.Chernykh, A.Krugmann, P.von Neumann-Cosel, N.Pietralla, I.Poltoratska, V.Yu.Ponomarev, C.Walz E2 strengths and transition radii difference of one-phonon 2+ states of 92Zr from electron scattering at low momentum transfer NUCLEAR REACTIONS 92Zr(e, e'), E=63 MeV; measured E(e), I(e), σ(θ) using LINTOTT spectrometer at S-DALINAC accelerator facility. 92Zr; deduced levels, J, π, B(E2) and B(E3) for first two 2+ and first 3- states, one-phonon symmetric and mixed-symmetric 2+ states. DWBA and PWBA analyses. Comparison with quasiparticle-phonon model (QPM) calculations.
doi: 10.1103/PhysRevC.87.014337
2012PI18 J.Phys.:Conf.Ser. 366, 012037 (2012) N.Pietralla, C.Walz, V.Y.Ponomarev, H.Fujita, A.Krugmann, P.von Neumann-Cosel, A.Scheikh-Obeid, J.Wambach Direct Evidence for Proton-Neutron Out-of-Phase Coupling in Mixed-Symmetry States from Scattering Experiments on 92Zr NUCLEAR REACTIONS 92Zr(p, p'), E=800 MeV;92Zr(e, e'), E=63 MeV; measured reaction products; deduced σ(q) vs momentum transfer; calculated σ(q) vs momentum transfer using QPM; deduced formation of low-lying quadrupole collective structures.
doi: 10.1088/1742-6596/366/1/012037
2012PO07 Phys.Rev. C 85, 041304 (2012) I.Poltoratska, P.von Neumann-Cosel, A.Tamii, T.Adachi, C.A.Bertulani, J.Carter, M.Dozono, H.Fujita, K.Fujita, Y.Fujita, K.Hatanaka, M.Itoh, T.Kawabata, Y.Kalmykov, A.M.Krumbholz, E.Litvinova, H.Matsubara, K.Nakanishi, R.Neveling, H.Okamura, H.J.Ong, B.Ozel-Tashenov, V.Yu.Ponomarev, A.Richter, B.Rubio, H.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimbara, Y.Shimizu, F.D.Smit, T.Suzuki, Y.Tameshige, J.Wambach, M.Yosoi, J.Zenihiro Pygmy dipole resonance in 208Pb NUCLEAR REACTIONS 208Pb(p, p'), E=295 MeV; measured Ep, Ip, σ(θ). 208Pb; deduced levels, J, π, PDR, σ(E1), σ(M1), B(E1). Multipole decomposition analysis based on DWBA calculations. Comparison with quasiparticle-phonon model (QPM), relativistic time-blocking approximation (RTBA), and shell model calculations. Separation of PDR and GDR strength with Coulomb-nuclear interference.
doi: 10.1103/PhysRevC.85.041304
2012US02 J.Phys.:Conf.Ser. 337, 012034 (2012) I.Usman, Z.Buthelezi, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Kalmykov, P.von Neumann-Cosel, R.Neveling, I.Poltoratska, A.Richter, A.Shevchenko, E.Sideras-Haddad, F.D.Smit, J.Wambach 2+ level densities in 40Ca extracted from high energy-resolution (p, p') experiments NUCLEAR REACTIONS 40Ca(p, p'), E=200 MeV; measured reaction products; deduced σ(θ, E), autocorrelation function, level density with specified J, π; calculated density with specified J, π using BSFG, HFB and HF-BCS.
doi: 10.1088/1742-6596/337/1/012034
2012VO07 J.Phys.:Conf.Ser. 337, 012004 (2012) Complete dipole strength distributions in 208Pb from high-resolution polarized proton scattering at 0 degrees NUCLEAR REACTIONS 208Pb(polarized p, p'), E=295 MeV; measured polarized Ep, Ip(θ≈00); deduced spin transfer, B(E1), photoabsorption σ, electric dipole polarizability, neutron skin thickness. B(E1) compared with data from 208Pb(γ, γ') and 207Pb(n, γ); photoabsorption σ with data from (γ, xn) and total photoabsorption measurements.
doi: 10.1088/1742-6596/337/1/012004
2011GO02 Nucl.Phys. A851, 1 (2011) A.Gook, M.Chernykh, C.Eckardt, J.Enders, P.von Neumann-Cosel, A.Oberstedt, S.Oberstedt, A.Richter Fragment characteristics from fission of 238U and 234U induced by 6.5-9.0 MeV bremsstrahlung NUCLEAR REACTIONS 234,238U(γ, F), E=5-9 MeV bremsstrahlung; measured fission fragment energy spectra, mass distributions and yields using twin Frisch grid ionization chamber; deduced fission reaction mechanism features. Comparison with other data and multi-modal random-neck rupture model.
doi: 10.1016/j.nuclphysa.2010.12.012
2011HE24 J.Phys.:Conf.Ser. 312, 092029 (2011) A.M.Heilmann, P.von Neumann-Cosel, A.Tamil, T.Adachi, C.Bertulani, J.Carter, H.Fujuita, Y.Fujita, K.Hatanaka, K.Hirota, On.H.Jin, T.Kawabata, A.Krugmann, H.Matsubara, E.Litvinova, R.Neveling, H.Okamura, B.Ozel-Tashenov, I.Poltoratska, V.Yu.Ponomarev, A.Richter, H.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimizu, Y.Shimbara, F.D.Smit, T.Suzuki, Y.Tameshige, Y.Yasuda, M.Yosoi, J.Zenihiro Electric dipole response in 120Sn NUCLEAR REACTIONS 120Sn(polarized p, p'), E=295 MeV; measured Ep, Ip(θ=forward), proton polarization using high-resolution Grand Raiden magnetic spectrometer; deduced B(E1) strength distribution. Data of published DALINAC-S experiment with (γ, γ') used to extract B(E1) strengths.
doi: 10.1088/1742-6596/312/9/092029
2011NE16 Nucl.Instrum.Methods Phys.Res. A 654, 29 (2011) R.Neveling, H.Fujita, F.D.Smit, T.Adachi, G.P.A.Berg, E.Z.Buthelezi, J.Carter, J.L.Conradie, M.Couder, R.W.Fearick, S.V.Fortsch, D.T.Fourie, Y.Fujita, J.Gorres, K.Hatanaka, M.Jingo, A.M.Krumbholz, C.O.Kureba, J.P.Mira, S.H.T.Murray, P.Von Neumann-Cosel, S.O'Brien, P.Papka, I.Poltoratska, A.Richter, E.Sideras-Haddad, J.A.Swartz, A.Tamii, I.T.Usman, J.J.Van Zyl High energy-resolution zero-degree facility for light-ion scattering and reactions at iThemba LABS NUCLEAR REACTIONS 40Ca(p, p'), E=200 MeV; measured products, 40Ca; deduced σ(θ). Data were imported from EXFOR entry D0706.
doi: 10.1016/j.nima.2011.06.077
2011TA18 Phys.Rev.Lett. 107, 062502 (2011) A.Tamii, I.Poltoratska, P.von Neumann-Cosel, Y.Fujita, T.Adachi, C.A.Bertulani, J.Carter, M.Dozono, H.Fujita, K.Fujita, K.Hatanaka, D.Ishikawa, M.Itoh, T.Kawabata, Y.Kalmykov, A.M.Krumbholz, E.Litvinova, H.Matsubara, K.Nakanishi, R.Neveling, H.Okamura, H.J.Ong, B.Ozel-Tashenov, B.Rubio, H.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimbara, Y.Shimizu, V.Yu.Ponomarev, A.Richter, F.D.Smit, T.Suzuki, Y.Tameshige, J.Wambach, R.Yamada, M.Yosoi, J.Zenihiro Complete Electric Dipole Response and the Neutron Skin in 208Pb NUCLEAR REACTIONS 208Pb(p, p'), E<20 MeV; measured reaction products, proton spectra; deduced electric dipole (E1) and spin magnetic dipole (M1) modes, E1 strength distribution, neutron skin thickness. Comparison with experimental data.
doi: 10.1103/PhysRevLett.107.062502
2011US01 Phys.Lett. B 698, 191 (2011) I.Usman, Z.Buthelezi, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Fujita, Y.Kalmykov, P.von Neumann-Cosel, R.Neveling, P.Papakonstantinou, A.Richter, R.Roth, A.Shevchenko, E.Sideras-Haddad, F.D.Smit Fine structure of the isoscalar giant quadrupole resonance in 40Ca due to Landau damping? NUCLEAR REACTIONS 40Ca(p, p'), E=200 MeV; measured proton spectra. 40Ca; deduced energy scale for isoscalar giant quadrupole resonance, fine structure. Comparison with RPA and SRPA calculations.
doi: 10.1016/j.physletb.2011.03.015
2011US03 Phys.Rev. C 84, 054322 (2011) I.Usman, Z.Buthelezi, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Kalmykov, P.von Neumann-Cosel, R.Neveling, I.Poltoratska, A.Richter, A.Shevchenko, E.Sideras-Haddad, F.D.Smit, J.Wambach Level density of 2+ states in 40Ca from high-energy-resolution (p, p') experiments NUCLEAR REACTIONS 40Ca(p, p'), E=200 MeV; measured E(p), I(p), double differential σ, σ(θ); deduced excitation energy, level density for 2+ states in the ISGQR region; analyzed fine structure of ISGQR. Fluctuation analysis. Comparison with backshifted Fermi gas and microscopic HF-BCS and HFB models.
doi: 10.1103/PhysRevC.84.054322
2011VO16 J.Phys.:Conf.Ser. 312, 042026 (2011) P.von Neumann-Cosel, M.Chernykh, H.Feldmeier, T.Neff, A.Richter Pair decay width of the Hoyle state and carbon production in stars NUCLEAR REACTIONS 12C(e, e'), E=73 MeV; measured Ee, Ie; deduced transition charge density for transition in from ground to the Hoyle state, formfactor at low q, pair decay widths.
doi: 10.1088/1742-6596/312/4/042026
2011WA01 Phys.Rev.Lett. 106, 062501 (2011) C.Walz, H.Fujita, A.Krugmann, P.von Neumann-Cosel, N.Pietralla, V.Yu.Ponomarev, A.Scheikh-Obeid, J.Wambach Origin of Low-Energy Quadrupole Collectivity in Vibrational Nuclei NUCLEAR STRUCTURE 92Zr; calculated B(E2), B(M1), magnetic moments, momentum transfer, σ(θ); deduced formation of the collective symmetric and mixed-symmetric states.. Comparison with experimental data.
doi: 10.1103/PhysRevLett.106.062501
2010BU05 Phys.Rev. C 82, 015808 (2010) O.Burda, P.von Neumann-Cosel, A.Richter, C.Forssen, B.A.Brown Resonance parameters of the first 1/2+ state in 9Be and astrophysical implications NUCLEAR REACTIONS 9Be(e, e'), E=73 MeV; measured electron spectra, σ, σ(θ); deduced parameters of the first 1/2+ resonance, widths, B(E1). R-matrix analysis. 9Be(γ, n), E=1.6-2.0 MeV; deduced averaged σ. Deduced reaction rates for 4He(nα, γ)9Be at temperatures T9=0.001 to 0.03. Comparison with shell-model calculations. Discussed implications for possible production of 12C in neutron-rich astrophysical scenarios.
doi: 10.1103/PhysRevC.82.015808
2010CH17 Phys.Rev.Lett. 105, 022501 (2010) M.Chernykh, H.Feldmeier, T.Neff, P.von Neumann-Cosel, A.Richter Pair Decay Width of the Hoyle State and its Role for Stellar Carbon Production NUCLEAR REACTIONS 12C(e, e'), E=29-78 MeV; measured reaction products; deduced transition form factors, charge density, pair decay width of the Hoyle state.
doi: 10.1103/PhysRevLett.105.022501
2010PE01 Phys.Rev. C 81, 014308 (2010) I.Petermann, K.Langanke, G.Martinez-Pinedo, P.von Neumann-Cosel, F.Nowacki, A.Richter Scales in the fine structure of the magnetic dipole resonance: A wavelet approach to the shell model NUCLEAR STRUCTURE 50Ti, 52Cr, 54,56Fe; calculated M1 strength distributions, and power spectra using shell model and KB3G interaction. Comparison with experimental data from (e, e') reactions.
doi: 10.1103/PhysRevC.81.014308
2010SC32 J.Phys.:Conf.Ser. 205, 012040 (2010) A.Scheikh-Obeid, O.Burda, M.Chernykh, A.Krugmann, P.von Neumann-Cosel, N.Pietralla, I.Poltoratska, V.Ponomarev, C.Walz One-phonon excitations in 92Zr from electron scattering NUCLEAR REACTIONS 92Zr(e, e'), E=63 MeV; measured Eβ, Iβ(θ); deduced B(E2), B(E3), σ(θ, E*) vs momentum, σ(θ) vs momentum.
doi: 10.1088/1742-6596/205/1/012040
2010VO06 Pramana 75, 63 (2010) Pygmy dipole resonance in stable nuclei NUCLEAR REACTIONS 112,120Sn(γ, γ), 112,114,116,118,120,122,124Sn, 208Pb(p, p), E<20 MeV; analyzed data; deduced systematics, complete B(E1) strength. Microscopic QRPA calculations.
doi: 10.1007/s12043-010-0065-0
2010YE02 Phys.Rev. C 81, 044309 (2010) O.Yevetska, J.Enders, M.Fritzsche, P.von Neumann-Cosel, S.Oberstedt, A.Richter, C.Romig, D.Savran, K.Sonnabend Dipole strength in the 235U(γ, γ') reaction up to 2.8 MeV NUCLEAR REACTIONS 235U(γ, γ') E=3.5, 4.4 MeV; measured Eγ, Iγ, γ(θ), integrated cross sections of γ rays. 235U; deduced levels, B(M1), B(E1) strengths. 232Th, 235,236,238U; systematics of M1 strength functions.
doi: 10.1103/PhysRevC.81.044309
2010YE11 Nucl.Instrum.Methods Phys.Res. A 618, 160 (2010) O.Yevetska, S.Watzlawik, J.Ahrens, G.D.Alkhazov, V.P.Chizhov, E.M.Maev, P.Von Neumann-Cosel, E.M.Orischin, G.E.Petrov, J.-M.Porte, A.Richter, V.V.Sarantsev, G.Schrieder, Yu.V.Smirenin New experimental method for investigation of the nucleon polarizabilities NUCLEAR REACTIONS 1H(γ, γ), E=32.4-51.4 MeV; measured products, Eπ, Iπ; deduced σ(θ). Data were imported from EXFOR entry M0804.
doi: 10.1016/j.nima.2010.02.091
2009PI14 Phys.Lett. B 681, 134 (2009) N.Pietralla, T.C.Li, M.Fritzsche, M.W.Ahmed, T.Ahn, A.Costin, J.Enders, J.Li, S.Muller, P.von Neumann-Cosel, I.V.Pinayev, V.Yu.Ponomarev, D.Savran, A.P.Tonchev, W.Tornow, H.R.Weller, V.Werner, Y.K.Wu, A.Zilges Competition between excited core states and 1hω single-particle excitations at comparable energies in 207Pb from photon scattering NUCLEAR REACTIONS 208Pb(polarized γ, γ'), E=5.5, 5.6 MeV; measured Eγ, Iγ using the azimuthal nuclear resonance fluorescence intensity asymmetry technique. 206,207,208Pb; deduced levels, J, π.
doi: 10.1016/j.physletb.2009.09.059
2009SH19 Phys.Rev. C 79, 044305 (2009) A.Shevchenko, O.Burda, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Fujita, Y.Kalmykov, D.Lacroix, J.J.Lawrie, P.von Neumann-Cosel, R.Neveling, V.Yu.Ponomarev, A.Richter, E.Sideras-Haddad, F.D.Smit, J.Wambach Global investigation of the fine structure of the isoscalar giant quadrupole resonance NUCLEAR REACTIONS 58Ni, 89Y, 90Zr, 120Sn, 142Nd, 166Er, 208Pb(p, p'), E=200 MeV; measured proton spectra, angular distributions; deduced isoscalar giant quadrupole resonance (ISGQR) and associated E2 strength functions. Wavelet analysis. Comparisons with quasiparticle-phonon model (QPM), extended time-dependent Hartree-Fock method (ETDHF), random-phase approximation (RPA) and extended theory of finite Fermi systems (ETFFS).
doi: 10.1103/PhysRevC.79.044305
2009VO04 Phys.Rev. C 79, 059801 (2009) P.von Neumann-Cosel, A.Richter, A.Byelikov Comment on "138La-138Ce-136Ce nuclear cosmochronometer of the supernova neutrino process"
doi: 10.1103/PhysRevC.79.059801
2008RY01 Phys.Rev.Lett. 100, 172501 (2008) N.Ryezayeva, H.Arenhovel, O.Burda, A.Byelikov, M.Chernykh, J.Enders, H.W.Griesshammer, Y.Kalmykov, P.von Neumann-Cosel, B.Ozel, I.Poltoratska, I.Pysmenetska, C.Rangacharyulu, S.Rathi, A.Richter, G.Schrieder, A.Shevchenko, O.Yevetska Measurement of the Reaction 2H(e, e') at 180 degrees Close to the Deuteron Breakup Threshold NUCLEAR REACTIONS 2H(e, e'), E=27.8, 74.0 MeV; measured inclusive elastic cross sections; deduced deuteron breakup cross sections.
doi: 10.1103/PhysRevLett.100.172501
2008SH07 Phys.Rev. C 77, 024302 (2008) A.Shevchenko, J.Carter, G.R.J.Cooper, R.W.Fearick, Y.Kalmykov, P.von Neumann-Cosel, V.Yu.Ponomarev, A.Richter, I.Usman, J.Wambach Analysis of fine structure in the nuclear continuum NUCLEAR REACTIONS 208Pb(p, p'), E=200 MeV; analyzed excitation energies to investigate fine structure.
doi: 10.1103/PhysRevC.77.024302
2007BE03 Phys.Rev. C 75, 015204 (2007) F.Bellemann, A.Berg, J.Bisplinghoff, G.Bohlscheid, J.Ernst, C.Henrich, F.Hinterberger, R.Ibald, R.Jahn, R.Joosten, K.Kilian, A.Kozela, H.Machner, A.Magiera, J.Munkel, P.von Neumann-Cosel, P.von Rossen, H.Schnitker, K.Scho, J.Smyrski, R.Tolle, C.Wilkin, and the COSY-MOMO Collaboration Experimental study of the pd → 3He K+K- and pd → 3He φ reactions close to threshold NUCLEAR REACTIONS 2H(p, K+K-), E ≈ threshold; measured prompt and φ-meson production associated kaon pair spectra, σ(E, θ).
doi: 10.1103/PhysRevC.75.015204
2007BE18 Phys.Lett. B 645, 128 (2007); Erratum Phys.Lett. B 671, 496 (2009) F.Beck, D.Frekers, P.von Neumann-Cosel, A.Richter, N.Ryezayeva, I.J.Thompson Spectroscopic factor of the 7He ground state NUCLEAR REACTIONS 7Li(d, 2p), E=171 MeV; analysed σ(E, θ); deduced resonance width, spectroscopic factor. R-matrix analysis.
doi: 10.1016/j.physletb.2006.12.036
2007BU23 Phys.Rev.Lett. 99, 092503 (2007) O.Burda, N.Botha, J.Carter, R.W.Fearick, S.V.Fortsch, C.Fransen, H.Fujita, J.D.Holt, M.Kuhar, A.Lenhardt, P.von Neumann-Cosel, R.Neveling, N.Pietralla, V.Yu.Ponomarev, A.Richter, O.Scholten, E.Sideras-Haddad, F.D.Smit, J.Wambach High-Energy-Resolution Inelastic Electron and Proton Scattering and the multiphonon Nature of Mixed-Symmetry 2+ States in 94Mo NUCLEAR REACTIONS 94Mo(e, e'), E=70 MeV; 94Mo(p, p'), E=200 MeV; measured σ and excitation strengths. Compared results to model calculations.
doi: 10.1103/PhysRevLett.99.092503
2007BY02 Phys.Rev.Lett. 98, 082501 (2007) A.Byelikov, T.Adachi, H.Fujita, K.Fujita, Y.Fujita, K.Hatanaka, A.Heger, Y.Kalmykov, K.Kawase, K.Langanke, G.Martinez-Pinedo, K.Nakanishi, P.von Neumann-Cosel, R.Neveling, A.Richter, N.Sakamoto, Y.Sakemi, A.Shevchenko, Y.Shimbara, Y.Shimizu, F.D.Smit, Y.Tameshige, A.Tamii, S.E.Woosley, M.Yosoi Gamow-Teller Strength in the Exotic Odd-Odd Nuclei 138La and 180Ta and Its Relevance for Neutrino, Nucleosynthesis NUCLEAR REACTIONS 138Ba, 180Hf(3He, t), E=140 MeV/nucleon; measured particle spectra. 138La, 180Ta deduced Gamow-Teller strength distributions. Implications for stellar nucleosynthesis discussed.
doi: 10.1103/PhysRevLett.98.082501
2007CH04 Phys.Rev.Lett. 98, 032501 (2007) M.Chernykh, H.Feldmeier, T.Neff, P.von Neumann-Cosel, A.Richter Structure of the Hoyle State in 12C NUCLEAR REACTIONS 12C(e, e), (e, e'), E not given; analyzed σ(θ). 12C deduced excited state density, related features. NUCLEAR STRUCTURE 12C; calculated energies, radii, transition strengths. Fermionic molecular dynamics model, α-cluster models.
doi: 10.1103/PhysRevLett.98.032501
2007EN02 Eur.Phys.J. A 31, 15 (2007) J.Enders, O.Karg, P.von Neumann-Cosel, V.Yu.Ponomarev Do we understand the electric quadrupole strength distributions in magic nuclei? NUCLEAR REACTIONS 52Cr(γ, γ'), E=8.0, 9.9 MeV bremsstrahlung; measured Eγ, Iγ. 52Cr deduced 2+ states energies, B(E2). NUCLEAR STRUCTURE 16O, 40,44,48Ca, 52Cr, 88Sr, 116,124Sn, 138Ba, 140Ce, 206,208Pb; analyzed electric quadrupole strength distributions.
doi: 10.1140/epja/i2006-10150-5
2007FU12 Nucl.Phys. A788, 94c (2007) H.Fujita, N.T.Botha, O.Burda, J.Carter, R.W.Fearick, S.V.Fortsch, C.Fransen, M.Kuhar, A.Lenhardt, P.von Neumann-Cosel, R.Neveling, N.Pietralla, V.Yu.Ponomarev, A.Richter, O.Scholten, E.Sideras-Haddad, F.D.Smit, J.Wambach One- and two-phonon mixed-symmetry states in 94Mo in high-resolution electron and proton scattering NUCLEAR REACTIONS 94Mo(e, e'), E=70 MeV; 94Mo(p, p')E=200 MeV; measured excitation energy spectra; deduced mixed-symmetry state features. Comparison with shell model, quasiparticle phonon model and interacting boson model.
doi: 10.1016/j.nuclphysa.2007.01.053
2007HO13 Phys.Rev. C 76, 014314 (2007) F.Hofmann, C.Baumer, A.M.van den Berg, D.Frekers, V.M.Hannen, M.N.Harakeh, M.de Huu, Y.Kalmykov, P.von Neumann-Cosel, V.Yu.Ponomarev, S.Rakers, B.Reitz, A.Richter, K.Schweda, A.Shevchenko, J.Wambach, H.J.Wortche Proton scattering at intermediate energies on 58Ni: How well is it understood? NUCLEAR REACTIONS 58Ni(p, p'), E=172 MeV; measured cross sections, spin flip cross sections and spin-flip probabilities. Compared results to model calculations.
doi: 10.1103/PhysRevC.76.014314
2007KA46 Nucl.Phys. A788, 136c (2007) Y.Kalmykov, K.Langanke, G.Martinez-Pinedo, D.Mocelj, P.von Neumann-Cosel, I.Poltoratska, V.Yu.Ponomarev, A.Richter, A.Shevchenko, J.Wambach Spin- and Parity-Resolved Level Densities from High-Resolution Hadron and Electron Scattering Studies of Giant Resonances NUCLEAR REACTIONS 90Zr(3He, t), E=140 MeV/nucleon; 90Zr(e, e'), E=42.5, 66.4, 82.3 MeV; 90Zr(p, p'), E=200 MeV; analyzed excitation energy spectra. 90Zr, 90Nb deduced Gamow-Teller resonance and GQR energies and level densities. 58Ni(3He, t), (e, e'), (p, p'), E not given; analyzed excitation energy spectra. 58Ni, 58Cu deduced level densities. Discrete wavelet transform and fluctuation analysis, back-shifted Fermi gas and Hartree-Fock-BCS models.
doi: 10.1016/j.nuclphysa.2007.01.059
2007KA58 Phys.Rev.Lett. 99, 202502 (2007) Y.Kalmykov, C.Ozen, K.Langanke, G.Martinez-Pinedo, P.von Neumann-Cosel, A.Richter Spin- and Parity-Resolved Level Densities from the Fine Structure of Giant Resonances NUCLEAR REACTIONS 58Ni, 90Zr(p, p'), (e, e'), E not given; 90Zr(3He, t), E not given; analyzed cross sections. deduced level densities.
doi: 10.1103/PhysRevLett.99.202502
2007LI37 Acta Phys.Pol. B38, 1359 (2007) A.F.Lisetskiy, E.Caurier, K.Langanke, G.Martinez-Pinedo, P.von Neumann-Cosel, F.Nowacki, A.Richter sd - pf Shell Model Studies of M1 Strength in Ar Isotopes NUCLEAR STRUCTURE 36,38Ar; calculated B(M1) distribution as a function of excitation energy using the nuclear shell model.
2007LI56 Nucl.Phys. A789, 114 (2007) A.F.Lisetskiy, E.Caurier, K.Langanke, G.Martinez-Pinedo, P.von Neumann-Cosel, F.Nowacki, A.Richter Magnetic dipole probes of the sd and pf shell crossing in the 36, 38Ar isotopes NUCLEAR STRUCTURE 36,38Ar; calculated level energies, J, π, and magnetic dipole strength distributions within a large scale shell model study.
doi: 10.1016/j.nuclphysa.2007.01.074
2007OZ04 Nucl.Phys. A788, 385c (2007) B.Ozel, J.Enders, P.von Neumann-Cosel, I.Poltoratska, A.Richter, D.Savran, S.Volz, A.Zilges Systematics of the pygmy dipole resonance in stable tin isotopes from resonant photon scattering NUCLEAR REACTIONS 112,120Sn(γ, γ'), E≈9-11 MeV bremsstrahlung; measured Eγ, Iγ. 112Sn deduced B(E1) strength distribution. Sn analyzed B(E1).
doi: 10.1016/j.nuclphysa.2007.01.069
2007PO06 Phys.Rev. C 75, 054312 (2007) L.Popescu, C.Baumer, A.M.van den Berg, D.Frekers, D.De Frenne, Y.Fujita, E.W.Grewe, P.Haefner, M.N.Harakeh, M.Hunyadi, M.A.de Huu, E.Jacobs, H.Johansson, A.Korff, A.Negret, P.von Neumann-Cosel, S.Rakers, A.Richter, N.Ryezayeva, A.Shevchenko, H.Simon, H.J.Wortche Low-lying GT+ strength in 64Co studied via the 64Ni(d, 2He)64Co reaction NUCLEAR REACTIONS 64Ni(d, 2p), E=171 MeV; measured σ and angular distributions. Deduced GT strength to low lying states.
doi: 10.1103/PhysRevC.75.054312
2007RA11 Prog.Part.Nucl.Phys. 59, 358 (2007) S.Rathi, I.Pysmenetska, P.von Neumann-Cosel, A.Richter, G.Schrieder, A.Shevchenko Precise measurement of the proton charge radius at the S-DALINAC - a novel experimental method
doi: 10.1016/j.ppnp.2006.12.032
2007TA27 Nucl.Phys. A788, 53c (2007) A.Tamii, T.Adachi, J.Carter, M.Dozono, H.Fujita, Y.Fujita, K.Hatanaka, H.Hashimoto, T.Kaneda, M.Itoh, T.Kawabata, H.Matsubara, K.Nakanishi, P.von Neumann-Cosel, H.Okamura, A.Perez, I.Poltoratska, V.Ponomarev, L.Popescu, A.Richter, B.Rubio, H.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimbara, Y.Shimizu, F.D.Smit, Y.Tameshige, M.Yosoi, J.Zenihiro, K.Zimmer Study of M1 excitations by high-resolution proton inelastic scattering experiment at forward angles NUCLEAR REACTIONS 26Mg, 48Ca(p, p'), E=295 MeV; measured excitation energy spectrum. 12C(p, p'), E=295 MeV; calculated σ(θ). DWIA method.
doi: 10.1016/j.nuclphysa.2007.01.048
2007WA08 Phys.Rev. C 75, 034301 (2007) S.Walter, F.Stedile, J.J.Carroll, C.Fransen, G.Friessner, N.Hollmann, H.von Garrel, J.Jolie, O.Karg, F.Kappeler, U.Kneissl, C.Kohstall, P.von Neumann-Cosel, A.Linnemann, D.Mucher, N.Pietralla, H.H.Pitz, G.Rusev, M.Scheck, C.Scholl, R.Schwengner, V.Werner, K.Wisshak Photon scattering experiments on the quasistable, odd-odd mass nucleus 176Lu NUCLEAR REACTIONS 176Lu(γ, γ'), E=2.3, 3.1 MeV bremsstrahlung; measured Eγ, Iγ. 176Lu deduced transitions, B(M1), B(E1), strength distribution.
doi: 10.1103/PhysRevC.75.034301
2006KA02 Phys.Rev.Lett. 96, 012502 (2006) Y.Kalmykov, T.Adachi, G.P.A.Berg, H.Fujita, K.Fujita, Y.Fujita, K.Hatanaka, J.Kamiya, K.Nakanishi, P.von Neumann-Cosel, V.Yu.Ponomarev, A.Richter, N.Sakamoto, Y.Sakemi, A.Shevchenko, Y.Shimbara, Y.Shimizu, F.D.Smit, T.Wakasa, J.Wambach, M.Yosoi Fine Structure of the Gamow-Teller Resonance in 90Nb and Level Density of 1+ States NUCLEAR REACTIONS 90Zr(3He, t), E=140 MeV/nucleon; measured triton spectra. 90Nb deduced level densities, fine structure of Gamow-Teller resonance. Wavelet analysis technique.
doi: 10.1103/PhysRevLett.96.012502
2006NE06 Phys.Rev.Lett. 97, 062502 (2006) A.Negret, T.Adachi, B.R.Barrett, C.Baumer, A.M.van den Berg, G.P.A.Berg, P.von Brentano, D.Frekers, D.De Frenne, H.Fujita, K.Fujita, Y.Fujita, E.-W.Grewe, P.Haefner, M.N.Harakeh, K.Hatanaka, K.Heyde, M.Hunyadi, E.Jacobs, Y.Kalmykov, A.Korff, K.Nakanishi, P.Navratil, P.von Neumann-Cosel, L.Popescu, S.Rakers, A.Richter, N.Ryezayeva, Y.Sakemi, A.Shevchenko, Y.Shimbara, Y.Shimizu, Y.Tameshige, A.Tamii, M.Uchida, J.Vary, H.J.Wortche, M.Yosoi, L.Zamick Gamow-Teller Strengths in the A = 14 Multiplet: A Challenge to the Shell Model NUCLEAR REACTIONS 14N(d, 2p), E=175 MeV; 14N(3He, t), E=420 MeV; measured excitation energy spectra, σ(E, θ); deduced Gamow-Teller strength distributions. Comparison with no-core shell model predictions.
doi: 10.1103/PhysRevLett.97.062502
2006PY01 Phys.Rev. C 73, 017302 (2006) I.Pysmenetska, S.Walter, J.Enders, H.von Garrel, O.Karg, U.Kneissl, C.Kohstall, P.von Neumann-Cosel, H.H.Pitz, V.Yu.Ponomarev, M.Scheck, F.Stedile, S.Volz Two-phonon 1- state in 112Sn observed in resonant photon scattering NUCLEAR REACTIONS 112Sn(γ, γ'), E=3.8 MeV bremsstrahlung; measured Eγ, Iγ. 112Sn deduced level J, π, width, configuration, excitation B(E1). NUCLEAR STRUCTURE 112,116,118,120,122,124Sn; analyzed level energies, transitions B(E1). Quasiparticle-phonon model.
doi: 10.1103/PhysRevC.73.017302
2006RO13 Phys.Rev. C 73, 037306 (2006) S.J.Q.Robinson, A.Escuderos, L.Zamick, P.von Neumann-Cosel, A.Richter, R.W.Fearick Shell-model test of the rotational-model relation between static quadrupole moments Q(2+1), B(E2)'s, and orbital M1 transitions NUCLEAR STRUCTURE 44,46,48Ti, 48,50Cr; calculated quadrupole moments, B(E2), B(M1). Comparison of shell model and collective model results.
doi: 10.1103/PhysRevC.73.037306
2006RY03 Phys.Lett. B 639, 623 (2006) N.Ryezayeva, C.Baumer, A.M.van den Berg, L.V.Chulkov, D.Frekers, D.De Frenne, E.-W.Grewe, P.Haefner, E.Jacobs, H.Johanson, Y.Kalmykov, A.Negret, P.von Neumann-Cosel, L.Popescu, S.Rakers, A.Richter, G.Schrieder, A.Shevchenko, H.Simon, H.J.Wortche Search for a low-energy resonance in 7He with the 7Li(d, 2He) reaction NUCLEAR REACTIONS 6,7Li(d, 2p), E=171 MeV; analysed σ(θ, E'); deduced B(GT). DWBA analysis.
doi: 10.1016/j.physletb.2006.06.081
2005BA14 Phys.Rev. C 71, 024603 (2005); Erratum Phys.Rev. C 71, 029903 (2005) C.Baumer, A.M.van den Berg, B.Davids, D.Frekers, D.De Frenne, E.-W.Grewe, P.Haefner, M.N.Harakeh, F.Hofmann, S.Hollstein, M.Hunyadi, M.A.de Huu, E.Jacobs, B.C.Junk, A.Korff, K.Langanke, G.Martinez-Pinedo, A.Negret, P.von Neumann-Cosel, L.Popescu, S.Rakers, A.Richter, H.J.Wortche Determination of the Gamow-Teller strength distribution from the odd-odd nucleus 50V measured through 50V(d, 2He)50Ti and astrophysical implications NUCLEAR REACTIONS 50V(d, 2p), E=171 MeV; measured Ep, pp-coin, σ(E, θ). 50V deduced Gamow-Teller strength distribution. Comparison with model predictions.
doi: 10.1103/PhysRevC.71.024603
2005BA43 Phys.Rev. C 71, 044003 (2005) C.Baumer, D.Frekers, E.-W.Grewe, P.Haefner, S.Hollstein, B.C.Junk, A.Korff, S.Rakers, R.Schmidt, A.M.van den Berg, B.Davids, M.N.Harakeh, M.Hunyadi, M.A.de Huu, H.J.Wortche, N.Blasi, D.De Frenne, E.Jacobs, A.Negret, L.Popescu, R.De Leo, F.Hofmann, P.von Neumann-Cosel, A.Richter Measurement of the 2H(d, 2He)2n reaction at Ed = 171 MeV and implications for the neutron-neutron scattering length NUCLEAR REACTIONS 2H(d, 2p), E=171 MeV; measured Ep, pp-coin, σ(θ); deduced neutron-neutron scattering length.
doi: 10.1103/PhysRevC.71.044003
2005CH64 Astrophys.J. 633, L61 (2005) M.Chernykh, J.Enders, P.von Neumann-Cosel, C.Rangacharyulu, A.Richter The Role of the 96 keV Level in the 19O(β-)19F Process at Stellar Temperatures RADIOACTIVITY 19O(β-); calculated β-decay rate for ground and excited state, temperature dependence in stellar environments. NUCLEAR STRUCTURE 19F; calculated transitions B(M1).
doi: 10.1086/498263
2005EN01 Phys.Rev. C 71, 014306 (2005) J.Enders, P.von Neumann-Cosel, C.Rangacharyulu, A.Richter Parameter-free description of orbital magnetic dipole strength NUCLEAR STRUCTURE 46,48Ti, 50Cr, 56Fe, 66Zn, 92Zr, 94Mo, 108,112,114Cd, 122,124,126,130Te, 134,136Ba, 142Ce, 144,146,148,150Nd, 148,150,152,154Sm, 154,156,158,160Gd, 160,162,164Dy, 166,168,170Er, 172,174,176Yb, 176,178,180Hf, 182,184,186W, 190,192Os, 194,196Pt, 232Th, 236,238U; analyzed scissors mode excitation energies, deformation parameters, magnetic dipole strength distributions. Sum-rule approach.
doi: 10.1103/PhysRevC.71.014306
2005EN04 Acta Phys.Pol. B36, 1077 (2005) J.Enders, M.Babilon, T.Hartmann, A.Heine, P.von Neumann-Cosel, V.Yu.Ponomarev, N.Ryezayeva, S.Volz, A.Zilges, T.Guhr Electric dipole strength below the giant dipole resonance NUCLEAR STRUCTURE 138Ba, 140Ce, 142Nd, 144Sm, 204,206,208Pb; analyzed electric dipole strength distributions. Nuclear resonance fluorescence, Coulomb excitation, quasiparticle-phonon model.
2005HO10 Phys.Lett. B 612, 165 (2005) F.Hofmann, C.Baumer, A.M.van den Berg, D.Frekers, V.M.Hannen, M.N.Harakeh, M.A.de Huu, Y.Kalmykov, P.von Neumann-Cosel, V.Yu.Ponomarev, S.Rakers, B.Reitz, A.Richter, A.Shevchenko, K.Schweda, J.Wambach, H.J.Wortche Polarized proton scattering on 58Ni at small momentum transfer: A test of the microscopic optical model and effective interactions NUCLEAR REACTIONS 58Ni(polarized p, p'), (polarized p, p), E=172 MeV; measured elastic and inelastic σ(E, θ), analyzing powers. Comparison with model predictions.
doi: 10.1016/j.physletb.2005.03.020
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