NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = D.Savran Found 99 matches. 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
2023IS05 Phys.Rev. C 108, L051301 (2023) J.Isaak, D.Savran, N.Pietralla, N.Tsoneva, A.Zilges, K.Eberhardt, C.Geppert, C.Gorges, H.Lenske, D.Renisch Direct demonstration of the two-phonon structure of the Jnullp = 1-4742keV
doi: 10.1103/PhysRevC.108.L051301
2023WA24 Eur.Phys.J. A 59, 154 (2023) F.Wamers, C.Lehr, J.Marganiec-Galazka, F.Aksouh, Yu.Aksyutina, H.Alvarez-Pol, L.Atar, T.Aumann, S.Beceiro Novo, C.A.Bertulani, K.Boretzky, M.J.G.Borge, C.Caesar, M.Chartier, A.Chatillon, L.V.Chulkov, D.Cortina-Gil, P.Diaz Fernandez, H.Emling, O.Ershova, L.M.Fraile, H.O.U.Fynbo, D.Galaviz, H.Geissel, M.Heil, M.Holl, H.T.Johansson, B.Jonson, C.Karagiannis, O.A.Kiselev, J.V.Kratz, R.Kulessa, N.Kurz, C.Langer, M.Lantz, T.Le Bleis, R.Lemmon, Yu.A.Litvinov, K.Mahata, C.Muntz, T.Nilsson, C.Nociforo, W.Ott, V.Panin, S.Paschalis, A.Perea, R.Plag, R.Reifarth, A.Richter, K.Riisager, C.Rodriguez-Tajes, D.Rossi, D.Savran, H.Scheit, G.Schrieder, P.Schrock, H.Simon, J.Stroth, K.Summerer, O.Tengblad, H.Weick, C.Wimmer Diverse mechanisms in proton knockout reactions from the Borromean nucleus 17Ne NUCLEAR REACTIONS 1H, 12C(17Ne, 2p), (17Ne, 16F), E=500 MeV/nucleon; analyzed available data. 17Ne, 16F; deduced σ(E), resonance parameters, spectroscopic factors. The SIS-18 synchrotron at GSI.
doi: 10.1140/epja/s10050-023-01063-y
2022HO01 J.Phys.(London) G49, 010502 (2022) C.R.Howell, M.W.Ahmed, A.Afanasev, D.Alesini, J.R.M.Annand, A.Aprahamian, D.L.Balabanski, S.V.Benson, A.Bernstein, C.R.Brune, J.Byrd, B.E.Carlsten, A.E.Champagne, S.Chattopadhyay, D.Davis, E.J.Downie, J.M.Durham, G.Feldman, H.Gao, C.G.R.Geddes, H.W.Griesshammer, R.Hajima, H.Hao, D.Hornidge, J.Isaak, R.V.F.Janssens, D.P.Kendellen, M.Kovash, P.P.Martel, U.-G.Meissner, R.Miskimen, B.Pasquini, D.R.Phillips, N.Pietralla, D.Savran, M.R.Schindler, M.H.Sikora, W.M.Snow, R.P.Springer, C.Sun, C.Tang, B.Tiburzi, A.P.Tonchev, W.Tornow, C.A.Ur, D.Wang, H.R.Weller, V.Werner, Y.K.Wu, J.Yan, Z.Zhao, A.Zilges, F.Z.Zomer International workshop on next generation gamma-ray source
doi: 10.1088/1361-6471/ac2827
2022LE02 Phys.Lett. B 827, 136957 (2022) C.Lehr, F.Wamers, F.Aksouh, Yu.Aksyutina, H.Alvarez-Pol, L.Atar, T.Aumann, S.Beceiro Novo, C.A.Bertulani, K.Boretzky, M.J.G.Borge, C.Caesar, M.Chartier, A.Chatillon, L.V.Chulkov, D.Cortina-Gil, P.Diaz Fernandez, H.Emling, O.Ershova, L.M.Fraile, H.O.U.Fynbo, D.Galaviz, H.Geissel, M.Heil, M.Heine, D.H.H.Hoffmann, M.Holl, H.T.Johansson, B.Jonson, C.Karagiannis, O.A.Kiselev, J.V.Kratz, R.Kulessa, N.Kurz, C.Langer, M.Lantz, T.Le Bleis, R.Lemmon, Yu.A.Litvinov, B.Loher, K.Mahata, J.Marganiec-Galazka, C.Muntz, T.Nilsson, C.Nociforo, W.Ott, V.Panin, S.Paschalis, A.Perea, R.Plag, R.Reifarth, A.Richter, K.Riisager, C.Rodriguez-Tajes, D.Rossi, D.Savran, H.Scheit, G.Schrieder, P.Schrock, H.Simon, J.Stroth, K.Summerer, O.Tengblad, H.Weick, C.Wimmer Unveiling the two-proton halo character of 17Ne: Exclusive measurement of quasi-free proton-knockout reactions NUCLEAR REACTIONS 1H(17Ne, 2p), E=498 MeV/nucleon; measured reaction products. 17Ne; deduced σ(E), energy levels, two-proton halo. The GSI synchrotron SIS18.
doi: 10.1016/j.physletb.2022.136957
2022SA39 Phys.Rev. C 106, 044324 (2022) D.Savran, J.Isaak, R.Schwengner, R.Massarczyk, M.Scheck, W.Tornow, G.Battaglia, T.Beck, S.W.Finch, C.Fransen, U.Friman-Gayer, R.Gonzalez, E.Hoemann, R.V.F.Janssens, S.R.Johnson, M.D.Jones, J.Kleemann, Krishichayan, D.R.Little, D.O'Donnell, O.Papst, N.Pietralla, J.Sinclair, V.Werner, O.Wieland, J.Wilhelmy Model-independent determination of the dipole response of 66Zn using quasimonoenergetic and linearly polarized photon beams NUCLEAR REACTIONS 66Zn(polarized γ, γ'), E=5.6-9.9 MeV; measured Eγ, Iγ, γγ-coin; deduced elastic, inelastic and total photoabsorption σ(E), average ground-state branching ratio, ratio of M1 to E1 elastic σ(E). Comparison to other experimental results. γ3-detector setup consisting of HPGe and LaBr3:Ce detectors at HIγS facility of the TUNL at Duke University.
doi: 10.1103/PhysRevC.106.044324
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
2021FR01 Phys.Rev.Lett. 126, 102501 (2021) U.Friman-Gayer, C.Romig, T.Huther, K.Albe, S.Bacca, T.Beck, M.Berger, J.Birkhan, K.Hebeler, O.J.Hernandez, J.Isaak, S.Konig, N.Pietralla, P.C.Ries, J.Rohrer, R.Roth, D.Savran, M.Scheck, A.Schwenk, R.Seutin, V.Werner Role of Chiral Two-Body Currents in 6Li Magnetic Properties in Light of a New Precision Measurement with the Relative Self-Absorption Technique RADIOACTIVITY 6Li(IT) [from 6Li(γ, γ'), E<7.1 MeV]; measured decay products, Eγ, Iγ; deduced B(M1), decay width. Comparison with ab initio calculations based on chiral effective field theory that take into account contributions to the magnetic dipole operator beyond leading order.
doi: 10.1103/PhysRevLett.126.102501
2021ID01 Phys.Rev. C 103, 054302 (2021) K.E.Ide, T.Beck, V.Werner, M.Berger, S.W.Finch, U.Friman-Gayer, J.Kleemann, Krishichayan, B.Loher, O.Papst, N.Pietralla, D.Savran, W.Tornow, M.Weinert, J.Wiederhold, A.Zilges E2 decay characteristics of the M1 scissors mode of 152Sm NUCLEAR REACTIONS 152Sm(polarized γ, γ'), E=3 MeV; measured Eγ, Iγ, γ(polarization azimuthal asymmetry) by nuclear resonance fluorescence (NRF) method using four HPGe detectors at the HIγS facility at TUNL. 152Sm; deduced levels, J, π, B(M1), B(E1), γ-branching ratios to the ground state and the first 2+ state, E2/M1 multipole mixing ratios, B(E2), summed scissors mode B(M1). Comparison with predictions of interacting boson model-2 (IBM-2); predicted energy and transition strength of the 2+ mixed-symmetry state.
doi: 10.1103/PhysRevC.103.054302
2021IS05 Phys.Rev. C 103, 044317 (2021) J.Isaak, D.Savran, B.Loher, T.Beck, U.Friman-Gayer, Krishichayan, N.Pietralla, V.Yu.Ponomarev, M.Scheck, W.Tornow, V.Werner, A.Zilges, M.Zweidinger Dipole response in 128, 130Te below the neutron threshold NUCLEAR REACTIONS 128,130Te(γ, γ'), (polarized γ, γ'), E=6.0, 9.13 MeV for 128Te and 6.4, 8.5 MeV for 130Te from Darmstadt high-intensity photon beams (DHIPS), and 2.76-8.92 MeV for 128Te and 5.5-8.5 MeV for 130Te linearly polarized and quasimonochromatic photon beams from TUNL HIγS facility; measured Eγ, Iγ, γγ(θ), γ(linear polarization). 128,130Te; deduced levels below the neutron threshold, pygmy dipole resonance (PDR), J, π, γ-branching ratios to the first excited 2+ states, Γ02/Γ, photoabsorption cross sections, B(E1), dominant 1- states. Comparison with predictions of quasiparticle phonon model. Detailed data for levels given in the Supplemental Material of the paper.
doi: 10.1103/PhysRevC.103.044317
2021MA62 Phys.Lett. B 820, 136569 (2021) K.R.Mashtakov, V.Yu.Ponomarev, M.Scheck, S.W.Finch, J.Isaak, M.Zweidinger, O.Agar, C.Bathia, T.Beck, J.Beller, M.Bowry, R.Chapman, M.M.R.Chishti, U.Friman-Gayer, L.P.Gaffney, P.E.Garrett, E.T.Gregor, J.M.Keatings, U.Koster, B.Loher, A.D.MacLean, D.O'Donnell, H.Pai, N.Pietralla, G.Rainovski, M.Ramdhane, C.Romig, G.Rusev, D.Savran, G.S.Simpson, J.Sinclair, K.Sonnabend, P.Spagnoletti, A.P.Tonchev, W.Tornow Structure of high-lying levels populated in the 96Y → 96Zr β decay RADIOACTIVITY 96Y(β-) [from 235U(n, F), E thermal]; measured decay products, Eγ, Iγ, Eβ, Iβ; deduced γ-ray energies, B(E1), branching ratios, Gamow-Teller transition probabilities B(GT). Quasiparticle Phonon Model. Institut Laue Langevin (ILL), LOHENGRIN separator.
doi: 10.1016/j.physletb.2021.136569
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
2020BE22 Phys.Rev.Lett. 125, 092501 (2020) T.Beck, V.Werner, N.Pietralla, M.Bhike, N.Cooper, U.Friman-Gayer, J.Isaak, R.V.Jolos, J.Kleemann, Krishichayan, O.Papst, W.Tornow, C.Bernards, B.P.Crider, R.S.Ilieva, B.Loher, C.Mihai, F.Naqvi, S.Pascu, E.E.Peters, F.M.Prados-Estevez, T.J.Ross, D.Savran, J.R.Vanhoy, A.Zilges ΔK = 0 m1 Excitation Strength of the Well-Deformed Nucleus 164Dy from K Mixing NUCLEAR REACTIONS 164Dy(γ, γ'), E=3-3.2 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, B(M1), reduced relative decay-intensity ratios, excitation strengths.
doi: 10.1103/PhysRevLett.125.092501
2020MU11 Phys.Rev. C 102, 014317 (2020) M.Muscher, J.Wilhelmy, R.Massarczyk, R.Schwengner, M.Grieger, J.Isaak, A.R.Junghans, T.Kogler, F.Ludwig, D.Savran, D.Symochko, M.P.Takacs, M.Tamkas, A.Wagner, A.Zilges High-sensitivity investigation of low-lying dipole strengths in 120Sn NUCLEAR REACTIONS 120Sn(γ, γ'), E=9.5 MeV bremsstrahlung beam; measured Eγ, Iγ, γ(θ) using four HPGe detectors at the γELBE facility of Helmholtz-Zentrum Dresden-Rossendorf. 120Sn; deduced levels, pygmy dipole resonances (PDR), J, π, Γ02/Γ, photoabsorption σ(Eγ), B(E1), Thomas-Reiche-Kuhn sum rule using statistical model with constant-temperature level density. Comparison with experimental results for 120Sn(p, p').
doi: 10.1103/PhysRevC.102.014317
2020PA32 Phys.Rev. C 102, 034323 (2020) O.Papst, V.Werner, J.Isaak, N.Pietralla, T.Beck, C.Bernards, M.Bhike, N.Cooper, B.P.Crider, U.Friman-Gayer, J.Kleemann, Krishichayan, B.Loher, F.Naqvi, E.E.Peters, F.M.Prados-Estevez, R.S.Ilieva, T.J.Ross, D.Savran, W.Tornow, J.R.Vanhoy Photo response of 164Dy NUCLEAR REACTIONS 164Dy(polarized γ, γ'), E=4.0-7.7 MeV; measured Eγ, Iγ, γ(polarization azimuthal asymmetry) using four HPGe detectors at the HIγS facility of TUNL. 164Dy; deduced levels, J, π, energy-integrated cross sections, widths, B(E1), B(M1), γ-branching ratios to the ground state and the first 2+ state, mean population ratios of the first and second 2+ states, and first 3+ state, photon strength function (PSF) and nuclear level density (NLD). Comparison with statistical model calculations.
doi: 10.1103/PhysRevC.102.034323
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
2020SI09 Eur.Phys.J. A 56, 105 (2020) J.Sinclair, M.Scheck, S.W.Finch, Krishichayan, U.Friman-Gayer, W.Tornow, G.Battaglia, T.Beck, R.Chapman, M.M.R.Chishti, Ch.Fransen, R.Gonzales, E.Hoemann, J.Isaak, R.V.F.Janssens, D.A.Jaroszynski, S.Johnson, M.D.Jones, J.M.Keatings, N.Kelly, J.Kleemann, D.Little, B.Loher, K.R.Mashtakov, M.Muscher, D.O'Donnell, O.Papst, E.E.Peters, D.Savran, M.Schilling, R.Schwengner, P.Spagnoletti, M.Spieker, V.Werner, J.Wilhelmy, O.Wieland, S.W.Yates, A.Zilges Firm spin and parity assignments for high-lying, low-spin levels in stable Si isotopes
doi: 10.1140/epja/s10050-020-00118-8
2020SY01 Phys.Lett. B 809, 135748 (2020) I.Syndikus, M.Petri, A.O.Macchiavelli, S.Paschalis, C.A.Bertulani, T.Aumann, H.Alvarez-Pol, L.Atar, S.Beceiro Novo, J.Benlliure, J.M.Boillos, K.Boretzky, M.J.G.Borge, B.A.Brown, M.Caamano, C.Caesar, E.Casarejos, W.Catford, J.Cederkall, S.Chakraborty, L.V.Chulkov, D.Cortina-Gil, E.Cravo, R.Crespo, U.Datta Pramanik, I.Dillmann, P.Diaz Fernandez, Z.Elekes, J.Enders, F.Farinon, L.M.Fraile, D.Galaviz, H.Geissel, R.Gernhauser, P.Golubev, K.Gobel, M.Heil, M.Heine, A.Heinz, A.Henriques, M.Holl, H.T.Johansson, B.Jonson, N.Kalantar-Nayestanaki, R.Kanungo, A.Kelic-Heil, T.Kroll, N.Kurz, C.Langer, T.Le Bleis, J.Machado, J.Marganiec-Galazka, E.Nacher, T.Nilsson, C.Nociforo, V.Panin, A.Perea, S.B.Pietri, R.Plag, A.Rahaman, R.Reifarth, A.Revel, G.Ribeiro, C.Rigollet, D.M.Rossi, D.Savran, H.Scheit, H.Simon, O.Sorlin, O.Tengblad, Y.Togano, M.Vandebrouck, V.Volkov, F.Wamers, C.Wheldon, G.L.Wilson, J.S.Winfield, H.Weick, P.Woods, D.Yakorev, M.Zhukov, A.Zilges, K.Zuber Probing the Z=6 spin-orbit shell gap with (p, 2p) quasi-free scattering reactions NUCLEAR REACTIONS C, H(17N, X)16C, E=438 MeV/nucleon; C, H(19N, X)18C, E=430 MeV/nucleon; C, H(21N, X)20C, E=422 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ, spectroscopic factors, proton component of spin-orbit splitting.
doi: 10.1016/j.physletb.2020.135748
2020VA01 Phys.Rev.Lett. 124, 022501 (2020) V.Vaquero, A.Jungclaus, T.Aumann, J.Tscheuschner, E.V.Litvinova, J.A.Tostevin, H.Baba, D.S.Ahn, R.Avigo, K.Boretzky, A.Bracco, C.Caesar, F.Camera, S.Chen, V.Derya, P.Doornenbal, J.Endres, N.Fukuda, U.Garg, A.Giaz, M.N.Harakeh, M.Heil, A.Horvat, K.Ieki, N.Imai, N.Inabe, N.Kalantar-Nayestanaki, N.Kobayashi, Y.Kondo, S.Koyama, T.Kubo, I.Martel, M.Matsushita, B.Million, T.Motobayashi, T.Nakamura, N.Nakatsuka, M.Nishimura, S.Nishimura, S.Ota, H.Otsu, T.Ozaki, M.Petri, R.Reifarth, J.L.Rodriguez-Sanchez, D.Rossi, A.T.Saito, H.Sakurai, D.Savran, H.Scheit, F.Schindler, P.Schrock, D.Semmler, Y.Shiga, M.Shikata, Y.Shimizu, H.Simon, D.Steppenbeck, H.Suzuki, T.Sumikama, D.Symochko, I.Syndikus, H.Takeda, S.Takeuchi, R.Taniuchi, Y.Togano, J.Tsubota, H.Wang, O.Wieland, K.Yoneda, J.Zenihiro, A.Zilges Fragmentation of Single-Particle Strength around the Doubly Magic Nucleus 132Sn and the Position of the 0f5/2 Proton-Hole State in 131In NUCLEAR REACTIONS 4He(132Sn, n), (132Sn, p), E=203 MeV/nucleon; 9Be(238U, X)132Sn, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ. 131Sn, 131In; deduced γ-ray energies, spectroscopic factors, strong fragmentation of single-hole strength. Comparison with theoretical calculations.
doi: 10.1103/physrevlett.124.022501
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
2019GA26 Phys.Rev. C 100, 034305 (2019) U.Gayer, T.Beck, M.Bhike, J.Isaak, N.Pietralla, P.C.Ries, D.Savran, M.Schilling, W.Tornow, V.Werner Experimental M1 response of 40Ar as a benchmark for neutrino-nucleus scattering calculations NUCLEAR REACTIONS 40Ar(polarized γ, γ'), E=4.44, 5.40, 5.65, 5.90, 6.10, 6.30, 6.50, 6.70, 6.90, 7.22, 7.55 MeV from High-Intensity γ-Ray Source (HIγS) at TUNL; measured Eγ, Iγ, azimuthal asymmetry using four HPGe detectors. 40Ar; deduced levels, J, π, integrated cross sections, lower limits for B(E1) and B(M1), average branching ratio to the first 2+ state, B(E1), B(M1), total M1 strength; results provide constraints on theoretical cross section of solar and supernova neutrinos with 40Ar. Comparison with large-scale shell model shell-model calculations for 1+ states in the sdfp space. Comparison with previous experimental results and evaluated data in the ENSDF database. Benchmarking of inelastic neutral current neutrino-nucleus scattering cross sections.
doi: 10.1103/PhysRevC.100.034305
2019GL01 Phys.Rev.Lett. 122, 092701 (2019) J.Glorius, C.Langer, Z.Slavkovska, L.Bott, C.Brandau, B.Bruckner, K.Blaum, X.Chen, S.Dababneh, T.Davinson, P.Erbacher, S.Fiebiger, T.Gassner, K.Gobel, M.Groothuis, A.Gumberidze, G.Gyurky, M.Heil, R.Hess, R.Hensch, P.Hillmann, P.-M.Hillenbrand, O.Hinrichs, B.Jurado, T.Kausch, A.Khodaparast, T.Kisselbach, N.Klapper, C.Kozhuharov, D.Kurtulgil, G.Lane, C.Lederer-Woods, M.Lestinsky, S.Litvinov, Y.A.Litvinov, B.Loher, F.Nolden, N.Petridis, U.Popp, T.Rauscher, M.Reed, R.Reifarth, M.S.Sanjari, D.Savran, H.Simon, U.Spillmann, M.Steck, T.Stohlker, J.Stumm, A.Surzhykov, T.Szucs, T.T.Nguyen, A.Taremi Zadeh, B.Thomas, S.Yu.Torilov, H.Tornqvist, M.Trager, C.Trageser, S.Trotsenko, L.Varga, M.Volknandt, H.Weick, M.Weigand, C.Wolf, P.J.Woods, Y.M.Xing Approaching the Gamow Window with Stored Ions: Direct Measurement of 124Xe(p, γ) in the ESR Storage Ring NUCLEAR REACTIONS 124Xe(p, γ), E=5.5-8 MeV/nucleon; measured reaction products, X-rays; deduced σ, σ(θ).
doi: 10.1103/PhysRevLett.122.092701
2019HO08 Phys.Lett. B 795, 682 (2019) M.Holl, V.Panin, H.Alvarez-Pol, L.Atar, T.Aumann, S.Beceiro Novo, J.Benlliure, C.A.Bertulani, J.M.Boillos, K.Boretzky, M.Caamano, C.Caesar, E.Casarejos, W.Catford, J.Cederkall, L.Chulkov, D.Cortina-Gil, E.Cravo, I.Dillmann, P.Diaz Fernandez, Z.Elekes, J.Enders, L.M.Fraile, D.Galaviz-Redondo, R.Gernhauser, P.Golubev, T.Heftrich, M.Heil, M.Heine, A.Heinz, A.Henriques, H.T.Johansson, B.Jonson, N.Kalantar-Nayestanaki, R.Kanungo, A.Kelic-Heil, T.Kroll, N.Kurz, C.Langer, T.Le Bleis, S.Lindberg, J.Machado, E.Nacher, M.A.Najafi, T.Nilsson, C.Nociforo, S.Paschalis, M.Petri, R.Reifarth, G.Ribeiro, C.Rigollet, D.M.Rossi, D.Savran, H.Scheit, H.Simon, O.Sorlin, I.Syndikus, O.Tengblad, Y.Togano, M.Vandebrouck, P.Velho, F.Wamers, H.Weick, C.Wheldon, G.L.Wilson, J.S.Winfield, P.Woods, M.Zhukov, K.Zuber Quasi-free neutron and proton knockout reactions from light nuclei in a wide neutron-to-proton asymmetry range NUCLEAR REACTIONS 1H(11C, 2p), (10C, np), (11C, np), (12C, np), E=300-400 MeV/nucleon; measured reaction products, Ep, Ip, En, In; deduced σ and momentum distributions. Comparison with DWIA calculations.
doi: 10.1016/j.physletb.2019.06.069
2019IS02 Phys.Lett. B 788, 225 (2019) J.Isaak, D.Savran, B.Loher, T.Beck, M.Bhike, U.Gayer, Krishichayan, N.Pietralla, M.Scheck, W.Tornow, V.Werner, A.Zilges, M.Zweidinger The concept of nuclear photon strength functions: A model-independent approach via (γ(pol), g'γ") reactions NUCLEAR REACTIONS 128Te(polarized γ, γ'γ'), E=3-9 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced lack of a unique photon strength function consistent with the uncertainties of the measurement.
doi: 10.1016/j.physletb.2018.11.038
2019RI02 Phys.Rev. C 100, 021301R (2019) P.C.Ries, H.Pai, T.Beck, J.Beller, M.Bhike, V.Derya, U.Gayer, J.Isaak, B.Loher, Krishichayan, L.Mertes, N.Pietralla, C.Romig, D.Savran, M.Schilling, W.Tornow, S.Typel, V.Werner, J.Wilhelmy, A.Zilges, M.Zweidinger Valence-shell dependence of the pygmy dipole resonance: E1 strength difference in 50, 54Cr NUCLEAR REACTIONS 50,54Cr(γ, γ'), (polarized γ, γ'), E=7.5, 9.5 MeV bremsstrahlung beam from Darmstadt, and 5.5-9.8 MeV Compton-scattered polarized beam from TUNL; measured Eγ, Iγ, azimuthal angular distributions, integrated cross sections using nuclear resonance fluorescence (NRF) method at the Darmstadt High Intensity Photon Setup (DHIPS), and at the High-Intensity γ-ray Source facility (HIγS) of TUNL. 50,54Cr; deduced levels, pygmy dipole resonances (PDR), J, π, widths of transitions to g.s., branching ratios, B(E1), B(M1), B(E2), Thomas-Reiche-Kuhn (TRK) energy-weighted sum rule for 50,52,54Cr; calculated neutron skin thicknesses for 48,49,50,51,52,53,54,55,56Cr.
doi: 10.1103/PhysRevC.100.021301
2019TA11 Nucl.Phys. A987, 79 (2019) M.Tamkas, E.Aciksoz, J.Isaak, T.Beck, N.Benouaret, M.Bhike, I.Boztosun, A.Durusoy, U.Gayer, Krishichayan, B.Loher, N.Pietralla, D.Savran, W.Tornow, V.Werner, A.Zilges, M.Zweidinger Low-lying dipole strength in the well-deformed nucleus 156Gd NUCLEAR REACTIONS 156Gd(γ, γ), E=7.1 MeV[bremsstrahlung end-point energy]; measured Eγ, Iγ using three HPGe with BGO active anti-Compton shield; deduced γ-ray energy spectra; 156Gd(polarized γ, γ), E=2.9-6.2 MeV[linearly polarized quasi-monochromatical photon beams from laser Compton backscattering]; measured Eγ, Iγ, γγ-coin at High Intensity γ-ray Source (HIγS) at TUNL; deduced γ-ray measured and deconvoluted energy spectra, asymmetries for observed single states and average asymmetry for each beam energy setting using deconvoluted spectra, expectation B(E1), B(M1) transition values; deduced, extracted photo absorption σγ vs E* and its decomposition to the gs and to the first excited state.
doi: 10.1016/j.nuclphysa.2019.03.014
2018SA49 Phys.Lett. B 786, 16 (2018) D.Savran, V.Derya, S.Bagchi, J.Endres, M.N.Harakeh, J.Isaak, N.Kalantar-Nayestanaki, E.G.Lanza, B.Loher, A.Najafi, S.Pascu, S.G.Pickstone, N.Pietralla, V.Yu.Ponomarev, C.Rigollet, C.Romig, M.Spieker, A.Vitturi, A.Zilges Multi-messenger investigation of the Pygmy Dipole Resonance in 140Ce NUCLEAR REACTIONS 140Ce(p, p'), E=80 MeV; measured reaction products, Eγ, Iγ; deduced σ(θ), Pygmy Dipole Resonance single excitations. Comparison with the Quasi-particle Phonon Model calculations.
doi: 10.1016/j.physletb.2018.09.025
2018WA07 Phys.Rev. C 97, 034612 (2018) F.Wamers, J.Marganiec, F.Aksouh, Yu.Aksyutina, H.Alvarez-Pol, T.Aumann, S.Beceiro Novo, C.A.Bertulani, K.Boretzky, M.J.G.Borge, M.Chartier, A.Chatillon, L.V.Chulkov, D.Cortina-Gil, H.Emling, O.Ershova, L.M.Fraile, H.O.U.Fynbo, D.Galaviz, H.Geissel, M.Heil, D.H.H.Hoffmann, J.Hoffman, H.T.Johansson, B.Jonson, C.Karagiannis, O.A.Kiselev, J.V.Kratz, R.Kulessa, N.Kurz, C.Langer, M.Lantz, T.Le Bleis, C.Lehr, R.Lemmon, Yu.A.Litvinov, K.Mahata, C.Muntz, T.Nilsson, C.Nociforo, W.Ott, V.Panin, S.Paschalis, A.Perea, R.Plag, R.Reifarth, A.Richter, K.Riisager, C.Rodriguez-Tajes, D.Rossi, D.Savran, G.Schrieder, H.Simon, J.Stroth, K.Summerer, O.Tengblad, S.Typel, H.Weick, M.Wiescher, C.Wimmer Comparison of electromagnetic and nuclear dissociation of 17Ne NUCLEAR REACTIONS H, C, Pb(17Ne, p15O), (17Ne, p14O), (17Ne, 2p15O), (17Ne, 2p14O), E=500 MeV/nucleon; measured reaction products, mass spectra of 13O, 14O and 15O isotopes, (14O)p-, (14O)2p-, (15O)p-, (15O)2p-coin using lead, carbon, and polyethylene targets and ALADIN-R3B setup at GSI; deduced transverse momentum distributions of 14O and 15O, relative energy spectra, inclusive σ, σ(1p) and σ(2p) for fragmentation of 17Ne in 14O and 15o for different targets, electromagnetic dissociation (EMD) cross sections. Electromagnetic and nuclear dissociations. One-proton knockout, and three body 15O+2p correlations. Comparison of measured cross sections and energy spectra with calculations using three-body 15O+2p model, and Hartree-Bogoliubov theory. Relevance to 15O(2p, γ)17Ne capture reaction in astrophysical rp-process.
doi: 10.1103/PhysRevC.97.034612
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
2017BE10 Phys.Rev.Lett. 118, 212502 (2017) T.Beck, J.Beller, N.Pietralla, M.Bhike, J.Birkhan, V.Derya, U.Gayer, A.Hennig, J.Isaak, B.Loher, V.Yu.Ponomarev, A.Richter, C.Romig, D.Savran, M.Scheck, W.Tornow, V.Werner, A.Zilges, M.Zweidinger E2 decay strength of the M1 scissors mode of 156Gd and its first excited rotational state NUCLEAR REACTIONS 156Gd(γ, γ'), E=3.07 MeV; measured reaction products, Eγ, Iγ; deduced relative intensities for transitions, B(M1), B(E2), multipole mixing ratio of the decay transition from the scissors mode to the 2+1 state in a deformed nucleus.
doi: 10.1103/PhysRevLett.118.212502
2017SC06 Acta Phys.Pol. B48, 547 (2017) M.Scheck, S.Mishev, V.Yu.Ponomarev, O.Agar, T.Beck, A.Blanc, R.Chapman, U.Gayer, L.P.Gaffney, E.T.Gregor, J.Keatings, P.Koseoglou, U.Koster, K.R.Mashtakov, D.O'Donnell, H.Pai, N.Pietralla, D.Savran, J.F.Smith, P.Spagnoletti, G.S.Simpson, M.Thurauf, V.Werner β Decay as a New Probe for the Low-energy E1 Strength RADIOACTIVITY 136I(β-); deduced discrete levels, γ transitions intensity, level population probability, branching ratios, B(E1) using published data. Compared with results from 136Xe(γ, γ'). NUCLEAR REACTIONS 136Xe(γ, γ'), E not given; deduced discrete transitions intensity, level population probability, branching ratios, B(E1) using published data.
doi: 10.5506/APhysPolB.48.547
2016DE05 Phys.Rev. C 93, 034311 (2016) V.Derya, N.Tsoneva, T.Aumann, M.Bhike, J.Endres, M.Gooden, A.Hennig, J.Isaak, H.Lenske, B.Loher, N.Pietralla, D.Savran, W.Tornow, V.Werner, A.Zilges Decay of quadrupole-octupole 1- states in 40Ca and 140Ce NUCLEAR REACTIONS 40Ca, 140Ce(polarized γ, γ'), E=3.6, 5.9 MeV; measured Eγ, Iγ, γγ-coin, polarization asymmetry and analyzing powers using high intensity γ-ray Source (HIγS) facility at (TUNL); deduced levels, J, π, B(E1), B(E2). Comparisons with energy density functional (EDF) and quasiparticle-phonon model (QPM) calculations. B(E1) and B(E2) systematics for N=82 isotones of 138Ba, 140Ce, 142Nd, 144Sm.
doi: 10.1103/PhysRevC.93.034311
2016LO04 Phys.Lett. B 756, 72 (2016) B.Loher, D.Savran, T.Aumann, J.Beller, M.Bhike, N.Cooper, V.Derya, M.Duchene, J.Endres, A.Hennig, P.Humby, J.Isaak, J.H.Kelley, M.Knorzer, N.Pietralla, V.Yu.Ponomarev, C.Romig, M.Scheck, H.Scheit, J.Silva, A.P.Tonchev, W.Tornow, F.Wamers, H.Weller, V.Werner, A.Zilges The decay pattern of the Pygmy Dipole Resonance of 140Ce NUCLEAR REACTIONS 140Ce(γ, γ'), (γ, γ), E=6.5 MeV; measured reaction products, Eγ, Iγ; deduced elastic scattering σ, average branching ratio to excited states for 140Ce, Pygmy Dipole Resonance (PDR) couple to the ground state as well as to low-lying excited states, PDR mixing. Comparison with nuclear model calculations.
doi: 10.1016/j.physletb.2016.02.042
2016MA42 Phys.Lett. B 759, 200 (2016) J.Marganiec, F.Wamers, F.Aksouh, Yu.Aksyutina, H.Alvarez-Pol, T.Aumann, S.Beceiro Novo, C.A.Bertulani, K.Boretzky, M.J.G.Borge, M.Chartier, A.Chatillon, L.V.Chulkov, D.Cortina-Gil, H.Emling, O.Ershova, L.M.Fraile, H.O.U.Fynbo, D.Galaviz, H.Geissel, M.Heil, D.H.H.Hoffmann, J.Hoffmann, H.T.Johansson, B.Jonson, C.Karagiannis, O.A.Kiselev, J.V.Kratz, R.Kulessa, N.Kurz, C.Langer, M.Lantz, T.Le Bleis, R.Lemmon, Yu.A.Litvinov, K.Mahata, C.Muntz, T.Nilsson, C.Nociforo, G.Nyman, W.Ott, V.Panin, S.Paschalis, A.Perea, R.Plag, R.Reifarth, A.Richter, C.Rodriguez-Tajes, D.Rossi, K.Riisager, D.Savran, G.Schrieder, H.Simon, J.Stroth, K.Summerer, O.Tengblad, S.Typel, H.Weick, M.Wiescher, C.Wimmer Coulomb and nuclear excitations of narrow resonances in 17Ne NUCLEAR REACTIONS H, C, Pb(17Ne, 2p), E=500 MeV/nucleon; measured reaction products, Ep, Ip. 17Ne; deduced σ(E), excitation energies and σ for resolved resonances in 17Ne, B(E2). Comparison with available data.
doi: 10.1016/j.physletb.2016.05.073
2016PA04 Phys.Rev. C 93, 014318 (2016) H.Pai, T.Beck, J.Beller, R.Beyer, M.Bhike, V.Derya, U.Gayer, J.Isaak, Krishichayan, J.Kvasil, B.Loher, V.O.Nesterenko, N.Pietralla, G.Martinez-Pinedo, L.Mertes, V.Yu.Ponomarev, P.-G.Reinhard, A.Repko, P.C.Ries, C.Romig, D.Savran, R.Schwengner, W.Tornow, V.Werner, J.Wilhelmy, A.Zilges, M.Zweidinger Magnetic dipole excitations of 50Cr NUCLEAR REACTIONS 50Cr(γ, γ'), (polarized γ, γ'), E<9.7 MeV bremsstrahlung; measured Eγ, Iγ, γ(θ), γ-polarization asymmetry, integrated σ, γ-branching ratios. Experiments performed at Darmstadt S-DALINAC and TUNL High Intensity γ-ray Source (HIγS) facilities. 50Cr; deduced levels, J, π, B(M1), reduced widths, configurations, M1 spin-flip transition. Discussed isovector rotation-like oscillations of 1+ states versus scissors-type mode. Comparison with Skyrme quasiparticle random-phase-approximation (QRPA) and the large-scale shell model (LSSM) calculations.
doi: 10.1103/PhysRevC.93.014318
2016SC06 Phys.Rev.Lett. 116, 132501 (2016) M.Scheck, S.Mishev, V.Yu.Ponomarev, R.Chapman, L.P.Gaffney, E.T.Gregor, N.Pietralla, P.Spagnoletti, D.Savran, G.S.Simpson Investigating the Pygmy Dipole Resonance Using β Decay NUCLEAR REACTIONS 136Xe(γ, γ'), E not given; calculated energy levels, J, π, B(E1). RADIOACTIVITY 136I(β-); calculated energy levels, J, π, B(E1); deduced β-decay populates a fraction of 1- levels associated with the pygmy dipole resonance.
doi: 10.1103/PhysRevLett.116.132501
2016SP01 Phys.Lett. B 752, 102 (2016) M.Spieker, N.Tsoneva, V.Derya, J.Endres, D.Savran, M.N.Harakeh, S.Harissopulos, R.-D.Herzberg, A.Lagoyannis, H.Lenske, N.Pietralla, L.Popescu, M.Scheck, F.Schluter, K.Sonnabend, V.I.Stoica, H.J.Wortche, A.Zilges The pygmy quadrupole resonance and neutron-skin modes in 124Sn NUCLEAR REACTIONS 124Sn(α, α'), E=34 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ(θ), B(E2), pygmy quadrupole resonance. Comparison with quasiparticle random-phase approximation calculations.
doi: 10.1016/j.physletb.2015.11.004
2016WE01 Phys.Rev. C 93, 034323 (2016) V.Werner, N.Cooper, J.-M.Regis, M.Rudigier, E.Williams, J.Jolie, R.B.Cakirli, R.F.Casten, T.Ahn, V.Anagnostatou, Z.Berant, M.Bonett-Matiz, M.Elvers, A.Heinz, G.Ilie, D.Radeck, D.Savran, M.K.Smith Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei RADIOACTIVITY 168Ta(EC)[from 159Tb(16O, 7n), E=130 MeV]; 174Re(EC)[from 169Tm(12C, 7n), E=115 MeV]; 152Eu(EC); measured Eγ, γγ-coin, γγ(t) using fast timing system at WNSL-Yale University. 168Hf, 174W; deduced levels, half-lives and B(E2) of first 2+ states. Comparison with previous experimental results. Systematics and analysis in terms of differentials of B(E2) values of the first 2+ states for 162,164,166,168,170,172,174,176,178Hf, 164,166,168,170,172,174,176,178,180W.
doi: 10.1103/PhysRevC.93.034323
2015BE02 Phys.Lett. B 741, 128 (2015) J.Beller, C.Stumpf, M.Scheck, N.Pietralla, D.Deleanu, D.M.Filipescu, T.Glodariu, W.Haxton, A.Idini, J.H.Kelley, E.Kwan, G.Martinez-Pinedo, R.Raut, C.Romig, R.Roth, G.Rusev, D.Savran, A.P.Tonchev, W.Tornow, J.Wagner, H.R.Weller, N.-V.Zamfir, M.Zweidinger Separation of the 1+/1- parity doublet in 20Ne NUCLEAR REACTIONS 20Ne, 28Si(polarized γ, γ'), E=11.26 MeV; measured reaction products, Eγ, Iγ; deduced the energy difference of the parity doublet, the ratio of their integrated σ. Comparison with shell model calculations.
doi: 10.1016/j.physletb.2014.12.018
2015HE32 Phys.Rev. C 92, 064317 (2015) A.Hennig, T.Ahn, V.Anagnostatou, A.Blazhev, N.Cooper, V.Derya, M.Elvers, J.Endres, P.Goddard, A.Heinz, R.O.Hughes, G.Ilie, M.N.Mineva, P.Petkov, S.G.Pickstone, N.Pietralla, D.Radeck, T.J.Ross, D.Savran, M.Spieker, V.Werner, A.Zilges Collective excitations of 96Ru by means of (p, p'γ) experiments NUCLEAR REACTIONS 96Ru(p, p'), E=8.4, 7 MeV; measured Ep, Ip, proton angular distributions, Eγ, Iγ, pγ- and γγ-coin, γγ(θ) using YRAST ball spectrometer at WNSL-Yale accelerator facility, level half-lives by DSAM using HORUS γ-ray spectrometer at IKP-Cologne accelerator facility. 96Ru; deduced levels, J, π, multipolarity, mixing ratios, configuration, B(E2), B(M1), B(E1), one-phonon mixed-symmetry excitations of octupole and hexadecapole character, two-phonon mixed-symmetry quintuplet. Comparison with sdg-IBM-2 and shell-model calculations. NUCLEAR STRUCTURE 96Ru; calculated levels, J, π, B(M1), B(E2) using sdg-IBM-2 and shell-model. Comparison with experimental data.
doi: 10.1103/PhysRevC.92.064317
2015MA09 Eur.Phys.J. A 51, 9 (2015) J.Marganiec, F.Wamers, F.Aksouh, Yu.Aksyutina, H.Alvarez-Pol, T.Aumann, S.Beceiro Novo, K.Boretzky, M.J.G.Borge, M.Chartier, A.Chatillon, L.V.Chulkov, D.Cortina-Gil, H.Emling, O.Ershova, L.M.Fraile, H.O.U.Fynbo, D.Galaviz, H.Geissel, M.Heil, D.H.H.Hoffmann, J.Hoffmann, H.T.Johansson, B.Jonson, C.Karagiannis, O.A.Kiselev, J.V.Kratz, R.Kulessa, N.Kurz, C.Langer, M.Lantz, T.Le Bleis, R.Lemmon, Yu.A.Litvinov, K.Mahata, C.Muntz, T.Nilsson, C.Nociforo, G.Nyman, W.Ott, V.Panin, S.Paschalis, A.Perea, R.Plag, R.Reifarth, A.Richter, C.Rodriguez-Tajes, D.Rossi, K.Riisager, D.Savran, G.Schrieder, H.Simon, J.Stroth, K.Summerer, O.Tengblad, H.Weick, M.Wiescher, C.Wimmer, M.V.Zhukov Studies of continuum states in 16Ne using three-body correlation techniques NUCLEAR REACTIONS C(17Ne, n16Ne), E≈500 MeV/nucleon; measured reaction products using Si-strip detectors and separation by magnetic field of ALADIN magnet. 16N deduced resonance energies, widths of different channels, relative energy spectrum of the channels, levels, J, π, two- and three-body correlations.
doi: 10.1140/epja/i2015-15009-0
2015RO09 Phys.Lett. B 744, 369 (2015) C.Romig, D.Savran, J.Beller, J.Birkhan, A.Endres, M.Fritzsche, J.Glorius, J.Isaak, N.Pietralla, M.Scheck, L.Schnorrenberger, K.Sonnabend, M.Zweidinger Direct determination of ground-state transition widths of low-lying dipole states in 140Ce with the self-absorption technique NUCLEAR REACTIONS 140Ce(γ, γ'), E<8 MeV; measured reaction products, Eγ, Iγ; deduced ground state transition widths, branching ratios. Comparison with available data.
doi: 10.1016/j.physletb.2015.04.013
2014BE09 Acta Phys.Pol. B45, 193 (2014) N.Benouaret, J.Beller, J.Isaak, J.H.Kelley, H.Pai, N.Pietralla, V.Yu.Ponomarev, R.Raut, C.Romig, G.Rusev, D.Savran, M.Scheck, L.Schnorrenberger, K.Sonnabend, A.P.Tonchev, W.Tornow, H.R.Weller, M.Zweidinger Photoexcitation of the Stable Tl Isotopes Below the Neutron Separation Energy NUCLEAR REACTIONS 203,205Tl(γ, γ'), E<7.5 MeV; measured reaction products, Eγ, Iγ; deduced dipole strength distribution. Comparison with available data.
doi: 10.5506/APhysPolB.45.193
2014DE04 Phys.Lett. B 730, 288 (2014) V.Derya, D.Savran, J.Endres, M.N.Harakeh, H.Hergert, J.H.Kelley, P.Papakonstantinou, N.Pietralla, V.Yu.Ponomarev, R.Roth, G.Rusev, A.P.Tonchev, W.Tornow, H.J.Wortche, A.Zilges Isospin properties of electric dipole excitations in 48Ca NUCLEAR REACTIONS 48Ca(polarized γ, γ'), E=6.6-9.51 MeV; 40,48Ca, 16O(α, α'γ), E=136 MeV; measured reaction products, Eγ, Iγ; deduced B(E1), J, π. Comparison with RPA calculations, available data.
doi: 10.1016/j.physletb.2014.01.050
2014HE28 Phys.Rev. C 90, 051302 (2014) A.Hennig, M.Spieker, V.Werner, T.Ahn, V.Anagnostatou, N.Cooper, V.Derya, M.Elvers, J.Endres, P.Goddard, A.Heinz, R.O.Hughes, G.Ilie, M.N.Mineva, P.Petkov, S.G.Pickstone, N.Pietralla, D.Radeck, T.J.Ross, D.Savran, A.Zilges Mixed-symmetry octupole and hexadecapole excitations in the N=52 isotones NUCLEAR REACTIONS 96Ru(p, p'), E=7.0, 8.4 MeV; measured Ep, Ip, Eγ, Iγ, pγ-coin, γγ(θ), level half-life by centroid-shift method using YRAST Ball spectrometer and Si detectors at Yale ESTU Tandem accelerator facility, and HORUS γ-detector array and particle-detector array SONIC at Cologne FN Tandem accelerator facility. 96Ru; deduced levels, J, π, branching ratios, multipole mixing ratios, B(M1), B(E2), mixed-symmetry states (MSS) of octupole and hexadecapole character. Evidence for one-phonon mixed-symmetry character of the second 3(-) and 4+ states. Comparison with sdg-IBM-2 model calculations.
doi: 10.1103/PhysRevC.90.051302
2014LA11 Phys.Rev. C 89, 041601 (2014) E.G.Lanza, A.Vitturi, E.Litvinova, D.Savran Dipole excitations via isoscalar probes: The splitting of the pygmy dipole resonance in 124Sn NUCLEAR REACTIONS 124Sn(α, α'), E=136 MeV; calculated isoscalar and isovector E1 transition strengths, σ as function of the excitation energy of the 124Sn+α system, deflection function. Relativistic quasiparticle time-blocking approximation (RQTBA) in the framework of semiclassical model. Splitting of the low-lying E1 strength in terms of pygmy dipole resonances (PDR). Comparison with experimental data.
doi: 10.1103/PhysRevC.89.041601
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
2014SA20 Phys.Rev. C 89, 035803 (2014) A.Sauerwein, K.Sonnabend, M.Fritzsche, J.Glorius, E.Kwan, N.Pietralla, C.Romig, G.Rusev, D.Savran, L.Schnorrenberger, A.P.Tonchev, W.Tornow, H.R.Weller Determination of the 142Ce(γ, n) cross section using quasi-monoenergetic Compton backscattered γ rays NUCLEAR REACTIONS 142Ce(polarized γ, n), E=7.6=9.7 MeV; measured Eγ, Iγ, σ(E) at HIγS-TUNL facility. Activation method. Comparison with Hauser-Feshbach calculations using different γ-ray strength functions, and with predictions of Hartree-Fock-BCS model. Relevance to s-process branching at 141Ce, and elemental abundance.
doi: 10.1103/PhysRevC.89.035803
2014WA09 Phys.Rev.Lett. 112, 132502 (2014) F.Wamers, J.Marganiec, F.Aksouh, Yu.Aksyutina, H.Alvarez-Pol, T.Aumann, S.Beceiro Novo, K.Boretzky, M.J.G.Borge, M.Chartier, A.Chatillon, L.V.Chulkov, D.Cortina-Gil, H.Emling, O.Ershova, L.M.Fraile, H.O.U.Fynbo, D.Galaviz, H.Geissel, M.Heil, D.H.H.Hoffmann, H.T.Johansson, B.Jonson, C.Karagiannis, O.A.Kiselev, J.V.Kratz, R.Kulessa, N.Kurz, C.Langer, M.Lantz, T.Le Bleis, R.Lemmon, Yu.A.Litvinov, K.Mahata, C.Muntz, T.Nilsson, C.Nociforo, G.Nyman, W.Ott, V.Panin, S.Paschalis, A.Perea, R.Plag, R.Reifarth, A.Richter, C.Rodriguez-Tajes, D.Rossi, K.Riisager, D.Savran, G.Schrieder, H.Simon, J.Stroth, K.Summerer, O.Tengblad, H.Weick, C.Wimmer, M.V.Zhukov First Observation of the Unbound Nucleus 15Ne NUCLEAR REACTIONS C(17Ne, 2p)15Ne, E=500 MeV/nucleon; measured reaction products; deduced fractional energy spectra, J, π, energy levels, atomic mass excess. RADIOACTIVITY 15Ne(2p); measured decay products, Ep, Ip; deduced implications for 13O+p+p system.
doi: 10.1103/PhysRevLett.112.132502
2013BE38 Phys.Rev.Lett. 111, 172501 (2013) J.Beller, N.Pietralla, J.Barea, M.Elvers, J.Endres, C.Fransen, J.Kotila, O.Moller, A.Richter, T.R.Rodriguez, C.Romig, D.Savran, M.Scheck, L.Schnorrenberger, K.Sonnabend, V.Werner, A.Zilges, M.Zweidinger Constraint on 0νββ Matrix Elements from a Novel Decay Channel of the Scissors Mode: The Case of 154Gd NUCLEAR REACTIONS 154Gd(γ, γ'), E<4.5 MeV; measured reaction products, Eγ, Iγ; deduced level energies, J, π, B(M1), B(E1). Comparison with IBM-2 and EDF calculations. RADIOACTIVITY 154Sm(2β-); calculated neutrinoless nuclear matrix elements.
doi: 10.1103/PhysRevLett.111.172501
2013DE39 Nucl.Phys. A906, 94 (2013) V.Derya, J.Endres, M.Elvers, M.N.Harakeh, N.Pietralla, C.Romig, D.Savran, M.Scheck, F.Siebenhuhner, V.Stoica, H.Woertche, A.Zilges Study of the pygmy dipole resonance in 94Mo using the (α, α'γ) coincidence technique NUCLEAR REACTIONS 94Mo(α, α'), E=136 MeV; measured products, 94Mo; deduced σ(θ). Data were imported from EXFOR entry O2138.
doi: 10.1016/j.nuclphysa.2013.02.018
2013GO19 Phys.Rev. C 88, 064308 (2013) P.M.Goddard, N.Cooper, V.Werner, G.Rusev, P.D.Stevenson, A.Rios, C.Bernards, A.Chakraborty, B.P.Crider, J.Glorius, R.S.Ilieva, J.H.Kelley, E.Kwan, E.E.Peters, N.Pietralla, R.Raut, C.Romig, D.Savran, L.Schnorrenberger, M.K.Smith, K.Sonnabend, A.P.Tonchev, W.Tornow, S.W.Yates Dipole response of 76Se above 4 MeV NUCLEAR REACTIONS 76Se(polarized γ, γ'), E=4-9 MeV; measured Eγ, Iγ, γ(θ), integrated σ, γ(linear polarization) at HIγS facility at TUNL. 76Se; deduced levels, J, π, Γ, level half-lives, B(E1), B(M1), branching ratios. Comparison with theoretical calculations.
doi: 10.1103/PhysRevC.88.064308
2013GU23 Phys.Rev. C 88, 014301 (2013) G.Gurdal, E.A.Stefanova, P.Boutachkov, D.A.Torres, G.J.Kumbartzki, N.Benczer-Koller, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, T.Ahn, V.Anagnostatou, C.Bernards, M.Elvers, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, E.Williams Measurements of g(41+, 22+)in 70, 72, 74, 76Ge: Systematics of low-lying structures in 30 ≤ Z ≤ 40 and 30 ≤ N ≤ 50 nuclei NUCLEAR REACTIONS C, Mg(70Ge, 70Ge'), (72Ge, 72Ge'), (74Ge, 74Ge'), (76Ge, 76Ge'), E=165-225 MeV; measured Eγ, precession angles, angular correlations; deduced g factors. Natural C or Mg targets with mid layer of Gd or Fe and backing of Ta and Cu. NUCLEAR MOMENTS 70,72,74,76Ge; measured g factors of first and second 2+ and first 4+ states using transient field (TF) technique following Coulomb excitation in inverse kinematics at WNSL-Yale facility. Systematics of g factors for neighboring nuclides of even-even N=32-50, Z=30-38. Comparison with large-scale shell-model, collective models, and IBA-II, and with previous experimental studies. No evidence for shell closure for neutrons at N=38 or N=40.
doi: 10.1103/PhysRevC.88.014301
2013IS14 Phys.Lett. B 727, 361 (2013) J.Isaak, D.Savran, M.Krticka, M.W.Ahmed, J.Beller, E.Fiori, J.Glorius, J.H.Kelley, B.Loher, N.Pietralla, C.Romig, G.Rusev, M.Scheck, L.Schnorrenberger, J.Silva, K.Sonnabend, A.P.Tonchev, W.Tornow, H.R.Weller, M.Zweidinger Constraining nuclear photon strength functions by the decay properties of photo-excited states NUCLEAR REACTIONS 11B, 130Te(γ, γ'), (γ, X), E<10 MeV; measured reaction products, Eγ, Iγ; deduced excited states π quantum numbers within 5.5-8.5 MeV region, γ-ray branching ratio, population intensity. Comparison with DICEBOX simulations, DHIPS and HIγS facilities at Darmstadt and TUNL, respectively.
doi: 10.1016/j.physletb.2013.10.040
2013LO05 Nucl.Instrum.Methods Phys.Res. A723, 136 (2013) B.Loher, V.Derya, T.Aumann, J.Beller, N.Cooper, M.Duchene, J.Endres, E.Fiori, J.Isaak, J.Kelley, M.Knorzer, N.Pietralla, C.Romig, D.Savran, M.Scheck, H.Scheit, J.Silva, A.Tonchev, W.Tornow, H.Weller, V.Werner, A.Zilges The high-efficiency γ-ray spectroscopy setup γ3 at HIγS NUCLEAR REACTIONS 32S(γ, γ'), E=8.125 MeV; measured reaction products, Eγ, Iγ; deduced precise value for the branching ratio for 1+ to 2+ transition.
doi: 10.1016/j.nima.2013.04.087
2013MC01 Phys.Rev. C 87, 014307 (2013) E.A.McCutchan, C.J.Lister, T.Ahn, V.Anagnostatou, N.Cooper, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner Shape coexistence and high-K states in 74Se populated following the β decay of 74Br RADIOACTIVITY 74Br(EC), (β+)[from 60Ni(16O, pn), E=52 MeV]; measured Eγ, Iγ, γγ-coin, γγ(θ) using YRAST Ball Clover detectors at WNSL, Yale facility. 74Se; deduced levels, J, π, branching ratios, β strength function, multipolarity, mixing ratio, configuration, B(E2), shape coexistence. Possible K=2 excitation in the second minimum.
doi: 10.1103/PhysRevC.87.014307
2013RO28 Phys.Rev. C 88, 044331 (2013) C.Romig, J.Beller, J.Glorius, J.Isaak, J.H.Kelley, E.Kwan, N.Pietralla, V.Yu.Ponomarev, A.Sauerwein, D.Savran, M.Scheck, L.Schnorrenberger, K.Sonnabend, A.P.Tonchev, W.Tornow, H.R.Weller, A.Zilges, M.Zweidinger Low-lying dipole strength of the open-shell nucleus 94Mo NUCLEAR REACTIONS 94Mo(γ, γ'), (polarized γ, γ'), E=5.47, 6.05, 6.44, 6.61, 6.89, 7.65, 8.70 MeV; measured Eγ, Iγ, γγ(θ), γ-polarization asymmetry using DHIPS setup at S-DALINAC, and HiγS at TUNL and DFELL facilities. 94Mo; deduced levels, J, π, Γ20/Γ, branching ratios, B(E1), B(M1), E1 strength distributions, feeding of first 2+ level, elastic σ. Comparison with QPM calculations, and statistical model using DICEBOX computer code.
doi: 10.1103/PhysRevC.88.044331
2013RO33 Phys.Rev.Lett. 111, 242503 (2013) D.M.Rossi, P.Adrich, F.Aksouh, H.Alvarez-Pol, T.Aumann, J.Benlliure, M.Bohmer, K.Boretzky, E.Casarejos, M.Chartier, A.Chatillon, D.Cortina-Gil, U.Datta Pramanik, H.Emling, O.Ershova, B.Fernandez-Dominguez, H.Geissel, M.Gorska, M.Heil, H.T.Johansson, A.Junghans, A.Kelic-Heil, O.Kiselev, A.Klimkiewicz, J.V.Kratz, R.Krucken, N.Kurz, M.Labiche, T.Le Bleis, R.Lemmon, Yu.A.Litvinov, K.Mahata, P.Maierbeck, A.Movsesyan, T.Nilsson, C.Nociforo, R.Palit, S.Paschalis, R.Plag, R.Reifarth, D.Savran, H.Scheit, H.Simon, K.Summerer, A.Wagner, W.Walus, H.Weick, M.Winkler Measurement of the Dipole Polarizability of the Unstable Neutron-Rich Nucleus 68Ni NUCLEAR REACTIONS Pb(68Ni, 68Ni'), (68Ni, X), E=502.7 MeV/nucleon; measured reaction products, Eγ, Iγ, En, In. 68Ni; deduced σ(E), giant and pygmy dipole resonance parameters, E1 strength, neutron skin thickness. Comparison with available data.
doi: 10.1103/PhysRevLett.111.242503
2013SA28 Prog.Part.Nucl.Phys. 70, 210 (2013) Experimental studies of the Pygmy Dipole Resonance
doi: 10.1016/j.ppnp.2013.02.003
2013SC08 Phys.Rev. C 87, 051304 (2013) M.Scheck, V.Yu.Ponomarev, T.Aumann, J.Beller, M.Fritzsche, J.Isaak, J.H.Kelley, E.Kwan, N.Pietralla, R.Raut, C.Romig, G.Rusev, D.Savran, K.Sonnabend, A.P.Tonchev, W.Tornow, H.R.Weller, M.Zweidinger Decay pattern of the pygmy dipole resonance in 60Ni NUCLEAR REACTIONS 60Ni(polarized γ, γ'), E=7.65-9.66 MeV; measured Eγ, Iγ, M1 and E1 strengths at HIγS-TUNL facility. 60Ni; deduced levels, J, π, PDR, branching ratios, number of 1+ and 1- states. Comparison with quasiparticle phonon model (QPM) calculations.
doi: 10.1103/PhysRevC.87.051304
2013SC20 Phys.Rev. C 88, 044304 (2013) M.Scheck, V.Yu.Ponomarev, M.Fritzsche, J.Joubert, T.Aumann, J.Beller, J.Isaak, J.H.Kelley, E.Kwan, N.Pietralla, R.Raut, C.Romig, G.Rusev, D.Savran, L.Schorrenberger, K.Sonnabend, A.P.Tonchev, W.Tornow, H.R.Weller, A.Zilges, M.Zweidinger Photoresponse of 60Ni below 10-MeV excitation energy: Evolution of dipole resonances in fp-shell nuclei near N=Z NUCLEAR REACTIONS 60Ni(γ, γ'), (polarized γ, γ'), E<10 MeV; 58Ni(polarized γ, γ'), E<10 MeV; measured Eγ, Iγ, γγ(θ), γ-ray polarization, integrated σ, γ-branching ratios using High-intensity photon setup at S-DALINAC facility. 58,60Ni; deduced levels, J, π, width, level half-lives, B(E1), B(M1), B(E2), E1 and M1 strength distributions. Thomas-Reiche-Kuhn sum rule. Pygmy-dipole resonances. Comparison with QPM calculations.
doi: 10.1103/PhysRevC.88.044304
2012CO17 Phys.Rev. C 86, 034313 (2012) N.Cooper, F.Reichel, V.Werner, L.Bettermann, B.Alikhani, S.Aslanidou, C.Bauer, L.Coquard, M.Fritzsche, Y.Fritzsche, J.Glorius, P.M.Goddard, T.Moller, N.Pietralla, M.Reese, C.Romig, D.Savran, L.Schnorrenberger, F.Siebenhuhner, V.V.Simon, K.Sonnabend, M.K.Smith, C.Walz, S.W.Yates, O.Yevetska, M.Zweidinger Photoresponse of 76Se below 9 MeV NUCLEAR REACTIONS 76Se(γ, γ'), E<9 MeV; measured Eγ, Iγ, γ(θ), integrated σ using S-DALINAC facility at the TU Darmstadt. 76Se; deduced levels, J, π, B(E1), B(M1), level half-lives, reduced E1 strength distribution, candidates for 2+ and fragment of the 1+ mixed-symmetry states.
doi: 10.1103/PhysRevC.86.034313
2012DE31 J.Phys.:Conf.Ser. 366, 012012 (2012) V.Derya, J.Endres, M.N.Harakeh, D.Savran, H.J.Wortche, A.Zilges Systematic Study of the Pygmy Dipole Resonance NUCLEAR REACTIONS 48Ca, 94Mo(α, α'γ), E=136 MeV; measured Eα, Iα, Eγ, Iγ, αγ-coin. 94Mo deduced singles α-scattering σ. 48Ca deduced γ energy spectrum in αγ coincidence, γ transitions. Compared with (polarized γ, γ') parity measurement and with published B(E1) from (γ, γ').
doi: 10.1088/1742-6596/366/1/012012
2012EN02 Phys.Rev. C 85, 064331 (2012) J.Endres, D.Savran, P.A.Butler, M.N.Harakeh, S.Harissopulos, R.-D.Herzberg, R.Krucken, A.Lagoyannis, E.Litvinova, N.Pietralla, V.Yu.Ponomarev, L.Popescu, P.Ring, M.Scheck, F.Schluter, K.Sonnabend, V.I.Stoica, H.J.Wortche, A.Zilges Structure of the pygmy dipole resonance in 124Sn NUCLEAR REACTIONS 124Sn(α, α'), E=136 MeV; measured Eγ, Eα, αγ-coin, αγ(θ) using Big-Bite magnetic Spectrometer at KVI facility; deduced pygmy dipole resonances, levels, differential σ. Comparison with B(E1) strengths in (γ, γ'). Comparison with quasiparticle-phonon model calculations and relativistic quasiparticle random-phase approximations.
doi: 10.1103/PhysRevC.85.064331
2012KU14 Phys.Rev. C 85, 044322 (2012) G.J.Kumbartzki, K.-H.Speidel, N.Benczer-Koller, D.A.Torres, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, P.Maier-Komor, T.Ahn, V.Anagnostatou, Ch.Bernards, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, E.Williams Structure of the Sr-Zr isotopes near and at the magic N=50 shell from g-factor and lifetime measurements in 8840Zr and 84, 86, 3888Sr NUCLEAR REACTIONS 12C(84Sr, X)84Sr/86Sr/88Sr/88Zr, E=243-285 MeV; measured Eγ, Iγ, (12C)γ-, αγ-, γγ-coin, level half-lives by DSA, g factors. 84,86,88Sr, 88Zr; deduced levels, J, π, B(E2). Systematics of B(E2) values for first 2+ states in even-even N=40-62 Sr and Zr nuclei. NUCLEAR MOMENTS 88Zr, 84,86,88Sr; measured g factors of 2+ and first 4+ states using transient field technique in inverse kinematics. Comparison with previous studies and with shell model calculations. Systematics of g factors of first 2+ states in even-even N=42-62 Sr and Zr nuclei.
doi: 10.1103/PhysRevC.85.044322
2012MC05 Phys.Rev. C 86, 057306 (2012) E.A.McCutchan, C.J.Lister, M.Elvers, D.Savran, J.P.Greene, T.Ahmed, T.Ahn, N.Cooper, A.Heinz, R.O.Hughes, G.Ilie, B.Pauerstein, D.Radeck, N.Shenkov, V.Werner Precise γ-ray intensity measurements in 10B NUCLEAR REACTIONS 10B(p, p'), E=10 MeV; measured Eγ, Iγ, proton spectra, pγ-coin, at Yale tandem facility. 10B; deduced levels, γ-ray branching ratios, E2 branch from 5164-keV level, B(E2). Comparison with previous studies.
doi: 10.1103/PhysRevC.86.057306
2012SC03 Acta Phys.Pol. B43, 333 (2012) F.Schluter, J.Endres, A.Zilges, D.Savran, M.Fritzsche, N.Pietralla, C.Romig, M.Zweidinger, K.Sonnabend The Pygmy Dipole Resonance in 124Sn NUCLEAR REACTIONS 124Sn(γ, γ'), E<7.8 MeV; measured reaction products, Eγ, Iγ. 11B; deduced integral σ, B(E1), elastic transition strength, pigmy dipole resonance. Comparison with GEANT calculations.
doi: 10.5506/APhysPolB.43.333
2012TO01 Phys.Rev. C 85, 017305 (2012) D.A.Torres, G.J.Kumbartzki, Y.Y.Sharon, L.Zamick, B.Manning, N.Benczer-Koller, K.-H.Speidel, T.Ahn, V.Anagnostatou, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, G.Gurdal, M.J.Taylor, P.Maier-Komor, M.Hjorth-Jensen, S.J.Q.Robinson Measurement of the 96Ru g(41+) factor and its nuclear structure interpretation NUCLEAR REACTIONS 12C(96Ru, 96Ru'), E=343, 353 MeV; measured 12C spectra, Eγ, Iγ, (12C)g-coin, (12C)γ(θ), precession angle in transient magnetic field, half-life by DSAM. 96Ru; deduced level, half-life of first 2+, g factors of first 2+ and 4+ states, B(E2). Coulomb excitation in inverse kinematics. Comparison with large-scale shell-model calculations. NUCLEAR MOMENTS 96Ru; measured g factors of first 2+ and 4+ states by transient magnetic field technique in inverse kinematics.
doi: 10.1103/PhysRevC.85.017305
2012ZW01 J.Phys.:Conf.Ser. 366, 012054 (2012) M.Zweidinger, J.Beller, J.Isaak, N.Pietralla, V.Yu.Ponomarev, C.Romig, D.Savran, M.Scheck, K.Sonnabend Photon scattering off 94Zr and 96Zr NUCLEAR REACTIONS 94,96Zr(γ, γ'), E=0-10 MeV; calculated dipole excitation strength B(E1), B(M1) energy distribution; calculated B(E1), B(M1) using QPM. Compared with data. Analysis still in progress.
doi: 10.1088/1742-6596/366/1/012054
2011EL09 Phys.Rev. C 84, 054323 (2011) M.Elvers, S.Pascu, T.Ahmed, T.Ahn, V.Anagnostatou, N.Cooper, C.Deng, J.Endres, P.Goddard, A.Heinz, G.Ilie, E.Jiang, C.Kuppersbusch, D.Radeck, D.Savran, N.Shenkov, V.Werner, A.Zilges Investigation of octupole vibrational states in 150Nd via inelastic proton scattering (p, p'γ) NUCLEAR REACTIONS 150Nd(p, p'), E=10.9 MeV; measured Eγ, Iγ, γγ-, pγ-coin using YRAST Ball at Yale. 150Nd; deduced levels, J, π, branching ratios, B(E1) ratios, B(E2) octupole and positive-parity bands. Comparison with interacting boson approximation in sdpf boson space.
doi: 10.1103/PhysRevC.84.054323
2011IS01 Phys.Rev. C 83, 034304 (2011) J.Isaak, D.Savran, M.Fritzsche, D.Galaviz, T.Hartmann, S.Kamerdzhiev, J.H.Kelley, E.Kwan, N.Pietralla, C.Romig, G.Rusev, K.Sonnabend, A.P.Tonchev, W.Tornow, A.Zilges Investigation of low-lying electric dipole strength in the semimagic nucleus 44Ca NUCLEAR REACTIONS 44Ca(polarized γ, γ'), E = 6-10, 9.9 MeV; measured Eγ, Iγ, γ(θ), integrated cross sections, and polarization asymmetry at DHIPS facility using S-DALINAC accelerator, and at HIγS facility. 44Ca; deduced levels, J, π, photon branching ratios, widths, B(E1) and B(M1) transition strengths. Comparisons with dipole strengths in 40,48Ca and with microscopic calculations within the extended theory of finite Fermi systems. Dependence of total E1 strength on neutron number.
doi: 10.1103/PhysRevC.83.034304
2011SA38 Phys.Rev. C 84, 024326 (2011) D.Savran, M.Elvers, J.Endres, M.Fritzsche, B.Loher, N.Pietralla, V.Yu.Ponomarev, C.Romig, L.Schnorrenberger, K.Sonnabend, A.Zilges Fragmentation and systematics of the pygmy dipole resonance in the stable N=82 isotones NUCLEAR REACTIONS 136Xe(γ, γ'), E=8.0, 9.2 MeV; measured Eγ, Iγ, γ(θ) at DHIPS facility. 136Xe; deduced levels, J, π, partial decay widths, B(E1). Comparison with Quasiparticle phonon model calculations. Systematics of measured and calculated B(E1) strengths for pygmy dipole resonances (PDR) in N=82 isotones 136Xe, 138Ba, 140Ce, 142Nd, and 144Sm. Discussed fragmentation of E1 strength.
doi: 10.1103/PhysRevC.84.024326
2011SA70 J.Phys.:Conf.Ser. 312, 092055 (2011) D.Savran, J.Endres, M.N.Harakeh, N.Pietralla, K.Sonnabend, V.I.Stoica, H.J.Wortche, A.M.van den Berg, A.Zilges Splitting of the Pygmy Dipole Resonance NUCLEAR REACTIONS 94Mo, 124Sn, 138Ba, 140Ce(α, α'γ), E=136 MeV; measured reaction products; deduced σ(α, θ), pygmy dipole resonance B(E1) distribution. Compared with (γ, γ') data measurements.
doi: 10.1088/1742-6596/312/9/092055
2011TO09 Phys.Rev. C 84, 044327 (2011) D.A.Torres, G.J.Kumbartzki, Y.Y.Sharon, L.Zamick, B.Manning, N.Benczer-Koller, G.Gurdal, K.-H.Speidel, M.Hjorth-Jensen, P.Maier-Komor, S.J.Q.Robinson, T.Ahn, V.Anagnostatou, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner First g-factor measurements of the 21+ and the 41+ states of radioactive 100Pd NUCLEAR REACTIONS 12C(96Ru, 8Be), E=350 MeV; measured particle spectra, Eγ, Iγ, αγ-, γγ-coin, γγ(θ), precession angle. 100Pd; deduced levels, J, π, g factors, B(E2) values. NUCLEAR MOMENTS 100Pd; measured g-factors of first 2+, 4+ states by transient magnetic field technique in inverse kinematics. Comparison with large-scale shell-model calculations and collective-model predictions.
doi: 10.1103/PhysRevC.84.044327
2011WE08 J.Phys.:Conf.Ser. 312, 092062 (2011) V.Werner, N.Cooper, M.Bonett-Matiz, E.Williams, J.-M.Regis, M.Rudigier, T.Ahn, V.Anagnostatou, Z.Berant, M.Bunce, M.Elvers, A.Heinz, G.Ilie, J.Jolie, D.Radeck, D.Savran, M.Smith Excited State Lifetime Measurements in Rare Earth Nuclei with Fast Electronics RADIOACTIVITY 174Re(EC) [from 169Tm(12C, 7n)174Re, E=115 MeV]; measured decay products, Eγ, Iγ; deduced lifetimes, B(E2). Comparison with IBA model and systematics. RADIOACTIVITY 168Ta(EC) [from 159Tb(16O, 7n)168Ta, E=130 MeV]; measured decay products, Eγ, Iγ; deduced lifetimes, B(E2). Comparison with IBA model and systematics.
doi: 10.1088/1742-6596/312/9/092062
2010EN01 Phys.Rev.Lett. 105, 212503 (2010) J.Endres, E.Litvinova, D.Savran, P.A.Butler, M.N.Harakeh, S.Harissopulos, R.-D.Herzberg, R.Krucken, A.Lagoyannis, N.Pietralla, V.Yu.Ponomarev, L.Popescu, P.Ring, M.Scheck, K.Sonnabend, V.I.Stoica, H.J.Wortche, A.Zilges Isospin Character of the Pygmy Dipole Resonance in 124Sn NUCLEAR REACTIONS 124Sn(α, α'), E=136 MeV; measured Eα, Iα, Eγ, Iγ, α-γ-coin.; deduced pigmy resonance σ(θ), B(E1), two groups of states. Comparison with calculations.
doi: 10.1103/PhysRevLett.105.212503
2010PI13 J.Phys.:Conf.Ser. 205, 012036 (2010) N.Pietralla, T.C.Li, M.Fritzsche, M.W.Ahmed, D.Savran, A.P.Tonchev, W.Tornow, H.R.Weller, V.Werner Spin and parity assignments to dipole excitations of the odd-mass nucleus 207Pb from nuclear resonance fluorescence experiments with linearly-polarized γ-ray beams NUCLEAR REACTIONS Pb(polarized γ, γ'), E=5400-5700 keV; measured Eγ, Iγ(θ) using HIγS at DFELL. 206,207,208Pb deduced low-lying dipole-excited levels, J, π, E1 γ decay rate.
doi: 10.1088/1742-6596/205/1/012036
2010SC33 J.Phys.:Conf.Ser. 202, 012027 (2010) L.Schnorrenberger, K.Sonnabend, J.Glorius, B.Loher, N.Pietralla, D.Savran, V.Simon, C.Walzlein Nuclear astrophysics with tagged photons: NEPTUN @ S-DALINAC, Darmstadt
doi: 10.1088/1742-6596/202/1/012027
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
2009EN03 Phys.Rev. C 80, 034302 (2009) J.Endres, D.Savran, A.M.van den Berg, P.Dendooven, M.Fritzsche, M.N.Harakeh, J.Hasper, H.J.Wortche, A.Zilges Splitting of the pygmy dipole resonance in 138Ba and 140Ce observed in the (α, α'γ) reaction NUCLEAR REACTIONS 138Ba, 140Ce(α, α'γ), E=136 MeV; measured Eγ, Iγ, αγ-coin, σ, angular correlations. 138Ba, 140Ce; deduced levels, J, π and E1 strength distributions for pygmy dipole resonances.
doi: 10.1103/PhysRevC.80.034302
2009HA13 Phys.Rev. C 79, 055807 (2009) J.Hasper, D.Galaviz, S.Muller, A.Sauerwein, D.Savran, L.Schnorrenberger, K.Sonnabend, A.Zilges Investigation of photoneutron reactions on 192Os and 191, 193Ir at energies of relevance for the astrophysical p process NUCLEAR REACTIONS 191,193Ir, 192Os(γ, n)190Ir/191Os/191mOs/192Ir, E=7600-9900 keV; measured Eγ, Iγ from radioactive decays of 190Ir, 191Os, 191mOs and 192Ir; deduced yields and σ. Comparison with calculated using NON-SMOKERWEB and TALYS codes.
doi: 10.1103/PhysRevC.79.055807
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
2008BU21 Phys.Rev. C 78, 044309 (2008) M.A.Bussing, M.Elvers, J.Endres, J.Hasper, A.Zilges, M.Fritzsche, K.Lindenberg, S.Muller, D.Savran, K.Sonnabend Parity assignments in 140Ce up to 7 MeV using Compton polarimetry NUCLEAR REACTIONS 32S, 140Ce, 208Pb(γ, γ'), E=2-7 MeV; measured Eγ, γ-ray linear polarizations. 140Ce; deduced levels, J, π, asymmetries. Bremsstrahlung beam, Compton polarimetry.
doi: 10.1103/PhysRevC.78.044309
2008DO23 Phys.Rev. C 78, 041602 (2008) H.Dohmann, C.Baumer, D.Frekers, E.-W.Grewe, M.N.Harakeh, S.Hollstein, H.Johansson, L.Popescu, S.Rakers, D.Savran, H.Simon, J.H.Thies, A.M.van den Berg, H.J.Wortche, A.Zilges The (d, 2He) reaction on 96Mo and the double-β decay matrix elements for 96Zr NUCLEAR REACTIONS 96Mo(d, 2He), E=183.5 MeV; measured charged particle spectra, σ(θ). 96Nb; deduced levels, J, π, B(GT). RADIOACTIVITY 96Zr(2β-); analyzed nuclear matrix elements for 2νββ and 0νββ decay modes.
doi: 10.1103/PhysRevC.78.041602
2008EL01 J.Phys.(London) G35, 014027 (2008) M.Elvers, J.Hasper, S.Muller, D.Savran, L.Schnorrenberger, K.Sonnabend, A.Zilges Nuclear astrophysics with real photons?the data acquisition system of the NEPTUN tagger setup
doi: 10.1088/0954-3899/35/1/014027
2008GR10 Phys.Rev. C 77, 064303 (2008) E.-W.Grewe, C.Baumer, H.Dohmann, D.Frekers, M.N.Harakeh, S.Hollstein, H.Johansson, K.Langanke, G.Martinez-Pinedo, F.Nowacki, I.Petermann, L.Popescu, S.Rakers, D.Savran, K.Sieja, H.Simon, J.H.Thies, A.M.van den Berg, H.J.Wortche, A.Zilges Studies on the double-β decay nucleus 64Zn using the (d, 2He) reaction NUCLEAR REACTIONS 64Zn(d, 2He), E=183 MeV; measured charged particle energies, angular distributions, σ(θ). 64Cu; deduced levels, J, π, Gamow-Teller strengths. 64Ni(3He, t); analyzed Gamow-Teller strength distribution. Comparison with shell model calculations.
doi: 10.1103/PhysRevC.77.064303
2008GR19 Phys.Rev. C 78, 044301 (2008) E.-W.Grewe, C.Baumer, H.Dohmann, D.Frekers, M.N.Harakeh, S.Hollstein, H.Johansson, L.Popescu, S.Rakers, D.Savran, H.Simon, J.H.Thies, A.M.van den Berg, H.J.Wortche, A.Zilges The (d, 2He) reaction on 76Se and the double-β-decay matrix elements for A = 76 NUCLEAR REACTIONS 76Se(d, 2He), E=183 MeV; measured particle spectra, σ(θ). 76As; deduced levels, J, π, B(GT), DWBA analysis. Comparison with 76Se(n, p), 76Ge(p, n) reactions.
doi: 10.1103/PhysRevC.78.044301
2008HA04 Phys.Rev. C 77, 015803 (2008) J.Hasper, S.Muller, D.Savran, L.Schnorrenberger, K.Sonnabend, A.Zilges Investigation of photoneutron reactions close to and above the neutron emission threshold in the rare earth region NUCLEAR REACTIONS 148,150Nd, 154Sm, 154,160Gd(γ, n), E=7450-9800 keV [from Cu(e, γ)]; measured Eγ, Iγ, photon flux, normalization, cross section; deduced reaction rates.
doi: 10.1103/PhysRevC.77.015803
2008SA18 Eur.Phys.J. A 36, 17 (2008) D.Savran, W.Bayer, D.Galaviz, S.Muller, K.Sonnabend, A.Zilges The photoresponse of 45Sc up to 7 MeV NUCLEAR REACTIONS 45Sc(γ, γ'), E≈5-7 MeV bremsstrahlung; measured Eγ, Iγ, integrated σ. 45Sc deduced level/transition energies, decay widths and B(E1), B(M1) strength distributions. Comparison with 44Ca.
doi: 10.1140/epja/i2008-10555-0
2008SA19 Phys.Rev.Lett. 100, 232501 (2008) D.Savran, M.Fritzsche, J.Hasper, K.Lindenberg, S.Muller, V.Yu.Ponomarev, K.Sonnabend, A.Zilges Fine Structure of the Pygmy Dipole Resonance in 136Xe NUCLEAR REACTIONS 136Xe(γ, γ'), E not given; measured Eγ, Iγ, B(E1). Comparison with quasiparticle phonon model.
doi: 10.1103/PhysRevLett.100.232501
2007AM03 Phys.Rev. C 75, 041001 (2007) H.R.Amir-Ahmadi, R.Castelijns, A.Deltuva, M.Eslami-Kalantari, E.D.van Garderen, M.N.Harakeh, N.Kalantar-Nayestanaki, M.Kis, H.Lohner, M.Mahjour-Shafiei, H.Mardanpour, J.G.Messchendorp, B.Mukherjee, D.Savran, K.Sekiguchi, S.V.Shende, H.Witala, H.J.Wortche Three-nucleon force effects in cross section and spin observables of elastic deuteron-proton scattering at 90 MeV/nucleon NUCLEAR REACTIONS 1H(polarized d, p), E=90 MeV/nucleon; measured cross section, vector and tensor analyzing powers, induced polarization, vector and tensor spin transfer coefficients.
doi: 10.1103/PhysRevC.75.041001
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
2007SA48 Nucl.Phys. A788, 165c (2007) D.Savran, M.Babilon, A.M.van den Berg, M.N.Harakeh, J.Hasper, H.J.Wortche, A.Zilges Investigation of the Pygmy Dipole Resonance in (α, α'γ) coincidence experiments NUCLEAR REACTIONS 140Ce(α, α'), E=136 MeV; measured Eα, Eγ, αγ-coin, σ(θ). 140Ce deduced electric dipole strength distribution, pygmy resonance features.
doi: 10.1016/j.nuclphysa.2007.01.078
2006SA26 Nucl.Instrum.Methods Phys.Res. A564, 267 (2006) D.Savran, A.M.van den Berg, M.N.Harakeh, K.Ramspeck, H.J.Wortche, A.Zilges High resolution γ-spectroscopy at the Big-Bite Spectrometer NUCLEAR REACTIONS 58Ni(α, α'), (α, nα), (α, pα), E=136 MeV; measured Eγ, Eα, γγ-, αγ-coin. 57Co, 57,58Ni deduced transitions.
doi: 10.1016/j.nima.2006.04.055
2006SA37 Phys.Rev.Lett. 97, 172502 (2006) D.Savran, M.Babilon, A.M.van den Berg, M.N.Harakeh, J.Hasper, A.Matic, H.J.Wortche, A.Zilges Nature of the Pygmy Dipole Resonance in 140Ce Studied in (α, α'γ) Experiments NUCLEAR REACTIONS 140Ce(α, α'), E=136 MeV; measured Eα, Eγ, αγ-coin, σ(θ). 140Ce deduced electric dipole strength distribution, pygmy resonance features.
doi: 10.1103/PhysRevLett.97.172502
2006VO11 Nucl.Phys. A779, 1 (2006) S.Volz, N.Tsoneva, M.Babilon, M.Elvers, J.Hasper, R.-D.Herzberg, H.Lenske, K.Lindenberg, D.Savran, A.Zilges The photoresponse of stable N = 82 nuclei below 10 MeV NUCLEAR REACTIONS 138Ba(γ, γ'), E=9.2 MeV bremsstrahlung; 140Ce, 142Nd, 144Sm(γ, γ'), E=7.6, 9.9 MeV bremsstrahlung; measured Eγ, Iγ. 138Ba, 140Ce, 142Nd, 144Sm deduced dipole transition energies, B(E1). Comparison with quasiparticle-phonon model predictions.
doi: 10.1016/j.nuclphysa.2006.08.012
2005SA15 Phys.Rev. C 71, 034304 (2005) D.Savran, S.Muller, A.Zilges, M.Babilon, M.W.Ahmed, J.H.Kelley, A.Tonchev, W.Tornow, H.R.Weller, N.Pietralla, J.Li, I.V.Pinayev, Y.K.Wu Parity assignments in 172, 174Yb using polarized photons and the K quantum number in rare earth nuclei NUCLEAR REACTIONS 172,174Yb(polarized γ, γ'), E=2930, 3005, 3550 keV; measured Eγ, Iγ, asymmetries. 172,174Yb levels deduced π. Parity and branching ratio systematics discussed.
doi: 10.1103/PhysRevC.71.034304
2005ZI04 Prog.Part.Nucl.Phys. 55, 408 (2005) A.Zilges, M.Babilon, T.Hartmann, D.Savran, S.Volz Collective excitations close to the particle threshold NUCLEAR REACTIONS 40,44,48Ca, 138Ba, 140Ce, 142Nd, 144Sm(γ, γ'), E ≈ 10 MeV bremsstrahlung; analyzed Eγ, Iγ. 40,44,48Ca, 138Ba, 140Ce, 142Nd, 144Sm deduced B(E1), pygmy dipole resonance features.
doi: 10.1016/j.ppnp.2005.01.018
2004HA51 Phys.Rev.Lett. 93, 192501 (2004) T.Hartmann, M.Babilon, S.Kamerdzhiev, E.Litvinova, D.Savran, S.Volz, A.Zilges Microscopic Nature of the Pygmy Dipole Resonance: The Stable Ca Isotopes NUCLEAR REACTIONS 44Ca(γ, γ'), E=9.9 MeV bremsstrahlung; measured Eγ, Iγ. 44Ca deduced electric dipole strength distribution, pygmy dipole resonance features. NUCLEAR STRUCTURE 40,44,48Ca; analyzed B(E1), summed strength; deduced quasiparticle-phonon coupling contributions to pygmy dipole resonance. Microscopic model.
doi: 10.1103/PhysRevLett.93.192501
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