NSR Query Results
Output year order : Descending NSR database version of March 21, 2024. Search: Author = P.Petkov Found 136 matches. Showing 1 to 100. [Next]2022DR04 Phys.Rev. C 106, 024329 (2022) M.Droste, A.Blazhev, P.Reiter, K.Arnswald, M.Beckers, C.Fransen, R.Hetzenegger, R.Hirsch, L.Kaya, L.Knafla, L.Lewandowski, C.Muller-Gatermann, P.Petkov, D.Rosiak, M.Seidlitz, B.Siebeck, A.Vogt, N.Warr, K.Wolf Lifetime measurements in the ground-state band in 104Pd NUCLEAR REACTIONS 96Zr(12C, 4n)104Pd, E=55 MeV; measured Eγ, Iγ, γγ-coin, level T1/2 by recoil distance Doppler-shift (RDDS) method and differential decay-curve method (DDCM) using 12 HPGe detectors and Cologne coincidence-plunger device at the FN tandem accelerator of the University of Cologne. 104Pd; deduced levels, J, π, T1/2 of levels up to 12+ in the g.s. yrast band, B(E2). Comparison with large-scale shell-model calculations (LSSM) with SR88MHJM interaction, and with available previous experimental values. NUCLEAR STRUCTURE 96,98,100,102,104,106Pd; calculated energy(first 4+)/energy(first 2+), B(E2)(first 4+)/B(E2)(first 2+), excitation energies and B(E2) up to 10+ in the g.s. band. 104Pd; calculated Eγ and B(E2) for levels up to 26+ in the g.s. band, occupation numbers for first 8+, 10+ and 12+, and second 10+ levels. Large-scale shell-model calculations (LSSM) with SR88MHJM interaction. Comparison with available experimental data.
doi: 10.1103/PhysRevC.106.024329
2022IV01 Phys.Rev. C 105, 034337 (2022) D.Ivanova, S.Lalkovski, C.Costache, S.Kisyov, C.Mihai, N.Marginean, P.Petkov, L.Atanasova, D.Bucurescu, R.B.Cakirli, M.P.Carpenter, R.F.Casten, Gh.Cata-Danil, I.Cata-Danil, D.Deleanu, D.Filipescu, N.Florea, I.Gheorghe, D.Ghita, T.Glodariu, F.G.Kondev, R.Lica, R.Marginean, A.Negret, S.Pascu, T.Sava, E.A.Stefanova, L.Stroe, G.Suliman, R.Suvaila, O.Yordanov, N.V.Zamfir Structure of the low-lying states in 99, 101, 103, 105Pd NUCLEAR REACTIONS 90,92,94Zr(12C, 3n), E=45 MeV; 96Zr(13C, 4n), E=55 MeV; measured Eγ, Iγ, γγ-coin. 94Zr(12C, 3n), E=56 MeV; measured Eγ, Iγ, γγ-coin with plunger device. 99,101,103,105Pd; deduced levels, J, π, B(M1), B(E2), T1/2 of excited states, multipolarity, δ, high-spin states, bands structure. Half-lives were determined by centroid shift method, deconvolution method and differential decay curve method (on case of 103Pd experiment with plunger). Comparison with rigid triaxial rotor plus particle model (RTRPM) calculations. RoSphere array comprised of 8 HPGe and 11 LaBr3:Ce detectors at IFIN-HH (Romania).
doi: 10.1103/PhysRevC.105.034337
2022PE07 J.Phys.Soc.Jpn. 91, 074201 (2022) Solution of the Bateman Equations for Two Identical Decay Constants in the Cascade and Propagation of the Effect Down the Level Scheme
doi: 10.7566/JPSJ.91.074201
2021AR08 Phys.Lett. B 820, 136592 (2021) K.Arnswald, A.Blazhev, F.Nowacki, P.Petkov, P.Reiter, T.Braunroth, A.Dewald, M.Droste, C.Fransen, R.Hirsch, V.Karayonchev, L.Kaya, L.Lewandowski, C.Muller-Gatermann, M.Seidlitz, B.Siebeck, A.Vogt, D.Werner, K.O.Zell Enhanced quadrupole collectivity in doubly-magic 56Ni: Lifetime measurements of the 41+ and 61+ states NUCLEAR REACTIONS 27Al(32S, 2np)56Ni, E=78 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, level lifetimes, B(E2). Comparison with theoretical calculations.
doi: 10.1016/j.physletb.2021.136592
2021PE09 Chin.Phys.C 45, 064002 (2021) Strongly enhanced quadrupole deformation in a class of N ≈ Z nuclei driven by large-scale clustering? NUCLEAR STRUCTURE 76,78,80Sr, 80,82Zr, 20Ne, 32S; analyzed available data; deduced formation of large size clusters, and/or their relative motion as a possible excitation mode to be closely related to the origin of deformation in specific cases, namely the case of two doubly-magic clusters or two clusters with nearby characterization, B(E2).
doi: 10.1088/1674-1137/abf137
2021TU02 Phys.Rev. C 103, 044306 (2021) A.Turturica, C.Costache, P.Petkov, J.-P.Delaroche, M.Girod, J.Libert, G.Cata-Danil, S.Pascu, C.Mihai, M.Boromiza, D.Bucurescu, C.Clisu, D.Filipescu, N.M.Florea, I.Gheorghe, A.Ionescu, R.Lica, N.M.Marginean, R.Marginean, R.E.Mihai, A.Mitu, A.Negret, C.R.Nita, A.Olacel, A.Oprea, T.Sava, C.Sotty, L.Stan, I.Stiru, R.Suvaila, S.Toma, G.V.Turturica, S.Ujeniuc Collective properties of neutron-deficient Nd isotopes: Lifetime measurements of the yrast states in 136Nd NUCLEAR REACTIONS 124Te(16O, 4n), E=80 MeV; measured Eγ, Iγ, γγ-coin, half-lives of levels by recoil distance Doppler shift (RDDS) and Doppler-shift attenuation (DSA) methods and analysis by differential decay curve method (DDCM) using ROSPHERE array at the tandem accelerator facility of IFINHH-Bucharest-Magurele. 136Nd; deduced levels, J, π, bands, B(E2). Comparison with five-dimensional collective Hamiltonian (5DCH) calculations with D1S Gogny force. Systematics of energies of ground state and γ bands, and other observables in 130,132,134,136,138,140Nd. NUCLEAR STRUCTURE 130,132,134,136,138,140Nd; calculated potential energy surfaces (PES) in (β, γ) plane, mean β and γ deformations, moments of inertia for yrast bands, B(E2), even-odd staggering parameter, spectroscopic quadrupole moments, charge radii and isotope shifts, ρ2(E0) rates. Five-dimensional collective Hamiltonian (5DCH) calculations with D1S Gogny force. Comparison with experimental data.
doi: 10.1103/PhysRevC.103.044306
2020AR16 Phys.Rev. C 102, 054302 (2020) K.Arnswald, P.Reiter, A.Blazhev, T.Braunroth, A.Dewald, M.Droste, C.Fransen, A.Goldkuhle, R.Hetzenegger, R.Hirsch, E.Hoemann, L.Kaya, L.Lewandowski, C.Muller-Gatermann, P.Petkov, D.Rosiak, M.Seidlitz, B.Siebeck, A.Vogt, D.Werner, K.Wolf, K.-O.Zell Lifetime measurements in 44Ti NUCLEAR REACTIONS 40Ca(6Li, np)44Ti, E=20 MeV; measured Eγ, Iγ, γγ(t), half-lives of the first 4+, 6+, 3- and 4- states by Doppler-shift attenuation method (DSAM), recoil distance Doppler-shift (RDDS) technique and the differential decay-curve method (DDCM) using an array of twelve HPGe detectors and Cologne coincidence plunger at the FN tandem accelerator of University of Cologne. 44Ti; deduced levels, J, π, B(E2), B(E1), B(M1), configurations. Comparison with previous experimental results, and with large-scale shell-model calculations using GXPF1A, KB3G, FPD6, and ZBM2M interactions.
doi: 10.1103/PhysRevC.102.054302
2020PE13 Phys.Rev. C 102, 044317 (2020) P.Petkov, D.-S.Delion, C.Muller-Gatermann Collectivity of the 2+1 state in Z ≤ 82 even-even nuclei probed by a ratio involving dynamic and static electromagnetic E2 moments: Evolution of the quadrupole degrees of freedom and a new signature for shape coexistence NUCLEAR STRUCTURE 16O, 20,22Ne, 24,26Mg, 28Si, 32S, 42Ca, 46,48Ti, 50,52,54Cr, 56,58Fe, 60Ni, 70Zn, 72,74,76Ge, 74,76,78,80,82Se, 96,98,100Mo, 98,100,102,104Ru, 104,106,108,110Pd, 106,108,110,112,114,116Cd, 116Sn, 122,124,126,128,130Te, 134,136,138,142Ba, 144,146,148,150Nd, 148,150,152,154Sm, 154,156,158,160Gd, 164Dy, 166,170Er, 170,172,174,176Yb, 176,178,180Hf, 180,182,184,186W, 184,186,188,190,182Os, 192,194,196,198Pt, 198,200,202Hg, 204Pb; analyzed ratios of experimental and deduced B(E2) values for the first 2+ states in even-even nuclei, the latter from experimental static quadrupole moments for the first 2+ states; deduced collective excitations and sensitivity to shell- and subshell closures, and a new signature for shape coexistence.
doi: 10.1103/PhysRevC.102.044317
2019PE14 Phys.Rev. C 100, 024312 (2019) P.Petkov, C.Muller-Gatermann, D.Werner, A.Dewald, A.Blazhev, C.Fransen, J.Jolie, S.Ohkubo, K.O.Zell New lifetime measurements for the lowest quadrupole states in 20, 22Ne and possible explanations of the high collectivity of the depopulating E2 transitions NUCLEAR REACTIONS 9Be, Mg(16O, X)20Ne, E=30, 33, 36, 38 MeV; 9Be, Mg(18O, X)22Ne, E=33 MeV; measured Eγ, Iγ, γγ-coin, stopping powers, level half-lives by DSAM and line-shape analysis using an array of twelve HPGe detectors, and Cologne coincidence plunger set up at the tandem accelerator of the University of Cologne. 20,22Ne; deduced levels, B(E2). Comparison with shell-model and configuration-mixing calculations, and with previous experimental data. Discussed angular momentum dependence of the B(E2) transition strengths between the yrast states.
doi: 10.1103/PhysRevC.100.024312
2018MU02 Phys.Rev. C 97, 024336 (2018) C.Muller-Gatermann, A.Dewald, C.Fransen, T.Braunroth, J.Jolie, J.Litzinger, J.M.Regis, F.von Spee, N.Warr, K.O.Zell, T.Grahn, P.T.Greenlees, K.Hauschild, U.Jakobsson, R.Julin, S.Juutinen, S.Ketelhut, P.Nieminen, M.Nyman, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, J.Uusitalo, P.Petkov Low-lying electromagnetic transition strengths in 180Pt NUCLEAR REACTIONS 98Mo(86Kr, 4n), E=380 MeV from the K-130 cyclotron of University of Jyvaskyla; measured Eγ, Iγ, γγ-coin using JUROGAM II array, level half-lives by recoil-distance Doppler-shift method (RDDM) using DPUNS plunger, and differential decay-curve analysis. 168Yb(16O, 4n), E=88 MeV from FN tandem at University of Cologne; measured Eγ, Iγ, γγ(t), level half-lives by fast electronic timing technique using Horus cube spectrometer consisting of eight LaBr3(Ce) scintillators and eight HPGe detectors. 180Pt; deduced levels, J, π, B(E2). Comparison with predictions of interacting boson model (IBM-1) and general collective model (GCM) calculations.
doi: 10.1103/PhysRevC.97.024336
2018SP01 Phys.Rev. C 97, 054319 (2018) M.Spieker, P.Petkov, E.Litvinova, C.Muller-Gatermann, S.G.Pickstone, S.Prill, P.Scholz, A.Zilges Shape coexistence and collective low-spin states in 112, 114Sn studied with the (p, p'γ) Doppler-shift attenuation coincidence technique NUCLEAR REACTIONS 112,114Sn(p, p'γ), E=8 MeV; measured Eγ, Iγ, pγ-, γγ-coin, Eγ(θ), level half-lives by DSAM using SONIC-HORUS combined spectroscopy setup at the Institute for Nuclear Physics of the University of Cologne. 112,114Sn; deduced levels, J, π, multipolarities, mixing ratios, B(E2), B(E1) γ-decay branching ratios for low-spin states, shape coexistence in low-spin members of the proton 2p-2h intruder configurations, and candidates for 3-phonon and quadrupole-octupole coupled states. Comparison with previous experimental values, and predictions of the sd IBM-2 calculations. Comparison of B(E2) values with those in 108,110Pd, 116,118Xe. Systematics of low-lying single-particle states in A=111-125 odd-A Sn isotopes, 1-, 3- and 5- states and B(E1) for 1- states in A=112-124 even-A Sn isotopes.
doi: 10.1103/PhysRevC.97.054319
2017AY04 Phys.Rev. C 96, 024315 (2017) S.Aydin, M.Ionescu-Bujor, G.Tz.Gavrilov, B.I.Dimitrov, S.M.Lenzi, F.Recchia, D.Tonev, M.Bouhelal, F.Kavillioglu, P.Pavlov, D.Bazzacco, P.G.Bizzeti, A.M.Bizzeti-Sona, G.de Angelis, I.Deloncle, E.Farnea, A.Gadea, A.Gottardo, N.Goutev, F.Haas, T.Huyuk, H.Laftchiev, S.Lunardi, Tz.K.Marinov, D.Mengoni, R.Menegazzo, C.Michelagnoli, D.R.Napoli, P.Petkov, E.Sahin, P.P.Singh, E.A.Stefanova, C.A.Ur, J.J.Valiente-Dobon, M.S.Yavahchova High-spin states and lifetimes in 33S and shell-model interpretation in the sd-fp space NUCLEAR REACTIONS 24Mg(14N, pα), E=40 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO), and level half-lives by DSAM using the 4π GASP array composed of 40 Compton-suppressed HPGe detectors at the LNL-Legnaro XTU-tandem accelerator facility. 33S; deduced high-spin levels, J, π, multipolarities, mixing ratios, B(E2), B(M1), B(E1), B(M2), B(E3), configurations. Comparison with large scale shell-model calculations using the ANTOINE code with the USD, PSDPF, and sdfp effective interactions.
doi: 10.1103/PhysRevC.96.024315
2017DU08 Nucl.Phys. A965, 13 (2017) H.Duckwitz, P.Petkov, T.Thomas, T.Ahn, A.Blazhev, N.Cooper, C.Fransen, M.Hinton, G.Ilie, J.Jolie, V.Werner Nuclear structure investigations of 84Sr and 86Sr using γ-ray spectroscopic methods NUCLEAR REACTIONS 85Rb(p, 2n), E=15 MeV;87Rb(p, 2n), E=16 MeV; measured Eγ, Iγ(θ), γγ-coin using HORUS and YRAST spectrometer of 10 clover detectors. 84,86Sr deduced γ transitions, levels, J, π, branching and mixing ratio, T1/2 using DSA (Doppler Shift Attenuation) method; calculated levels, J, π transition strengths, B(E2), B(M1) using NuShellX@MSU shell model code with Honma residual interaction; deduced mixed symmetry states. Calculations compared with available data.
doi: 10.1016/j.nuclphysa.2017.05.077
2017GL02 Phys.Rev. C 96, 024324 (2017) K.A.Gladnishki, P.Petkov, O.Moller, A.Dewald, J.Jolie, D.Tonev, M.Trichkova, S.Heinze, P.von Brentano, D.Bazzacco, C.A.Ur, E.Farnea, M.Axiotis, S.Lunardi, G.de Angelis, D.R.Napoli, N.Marginean, T.Martinez, M.A.Caprio, G.Rainovski Lifetimes and electromagnetic transition strengths in 157Dy NUCLEAR REACTIONS 124Sn(36S, 3n), E=155 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by Doppler-shift attenuation method (DSAM), recoil-distance Doppler-shift (RDDS) with further extension to differential decay-curve method (DDCM). 157Dy; deduced levels, B(E2). Comparison with particle plus triaxial rotor model (PTRM) calculations of Nilsson model wave functions for the ground-state band members.
doi: 10.1103/PhysRevC.96.024324
2017KO03 Phys.Rev. C 95, 014309 (2017) T.Konstantinopoulos, P.Petkov, A.Goasduff, T.Arici, A.Astier, L.Atanasova, M.Axiotis, D.Bonatsos, P.Detistov, A.Dewald, M.J.Eller, V.Foteinou, A.Gargano, G.Georgiev, K.Gladnishki, A.Gottardo, S.Harissopulos, H.Hess, S.Kaim, D.Kocheva, A.Kusoglu, A.Lagoyannis, J.Ljungvall, R.Lutter, I.Matea, B.Melon, T.J.Mertzimekis, A.Nannini, C.M.Petrache, A.Petrovici, G.Provatas, P.Reiter, M.Rocchini, S.Roccia, M.Seidlitz, B.Siebeck, D.Suzuki, N.Warr, H.De Witte, T.Zerrouki Lifetime measurements in 100Ru NUCLEAR REACTIONS 88Sr(14C, 2n), E=40, 46 MeV; measured Eγ, half-lives of 2+, 4+, 6+ and 8+ yrast levels by recoil-distance Doppler shift (RDDS) and Doppler-shift attenuation method (DSAM) using ORGAM array and eight detectors from Miniball array at 15 MV Tandem accelerator of the ALTO laboratory in Orsay. 100Ru; deduced levels, B(E2), not the best candidate for E(5) symmetry. Comparison with excited Vampir, shell-model calculations, and theoretical E(5) level scheme.
doi: 10.1103/PhysRevC.95.014309
2017KO34 Eur.Phys.J. A 53, 175 (2017) D.Kocheva, G.Rainovski, J.Jolie, N.Pietralla, A.Blazhev, A.Astier, R.Altenkirch, S.Ansari, Th.Braunroth, M.L.Cortes, A.Dewald, F.Diel, M.Djongolov, C.Fransen, K.Gladnishki, A.Hennig, V.Karayonchev, J.M.Keatings, E.Kluge, J.Litzinger, C.Muller-Gatermann, P.Petkov, M.Rudigier, M.Scheck, Ph.Scholz, P.Spagnoletti, M.Spieker, C.Stahl, R.Stegmann, M.Stoyanova, P.Thole, N.Warr, V.Werner, W.Witt, D.Wolk, K.O.Zell, P.Van Isacker, V.Yu.Ponomarev A revised B(E2;2+1 → 0+1) value in the semi-magic nucleus 210Po NUCLEAR REACTIONS 208Pb(12C, 10Be), E=62 MeV; measured Eγ, Iγ(θ), γγ-coin, (particle)γ-coin using 11 HPGe, light reaction fragments using solar cells array. 210Po; deduced 2+1 state T1/2 using the line shape of the transition, branching ratios to this state from upper states, B(E1), B(E2), B(E3), B(M1), T1/2 of three states and transitions; calculated low-lying states energy, structure, B(E1), B(E2), B(E3), B(M1) using QPM (Quasiparticle Phonon Model). Compared with data.
doi: 10.1140/epja/i2017-12367-5
2017KO38 Phys.Rev. C 96, 044305 (2017) D.Kocheva, G.Rainovski, J.Jolie, N.Pietralla, A.Blazhev, R.Altenkirch, S.Ansari, A.Astier, M.Bast, M.Beckers, Th.Braunroth, M.Cappellazzo, A.Dewald, F.Diel, M.Djongolov, C.Fransen, K.Gladnishki, A.Goldkuhle, A.Hennig, V.Karayonchev, J.M.Keatings, E.Kluge, Th.Kroll, J.Litzinger, K.Moschner, C.Muller-Gatermann, P.Petkov, M.Scheck, Ph.Scholz, T.Schmidt, P.Spagnoletti, C.Stahl, R.Stegmann, A.Stolz, A.Vogt, N.Warr, V.Werner, D.Wolk, J.C.Zamora, K.O.Zell, V.Yu.Ponomarev, P.Van Isacker Low collectivity of the 2+1 state of 212Po NUCLEAR REACTIONS 208Pb(12C, 8Be)212Po, E=64 MeV; measured Eγ, Iγ, (particle)γ-coin, half-life of the first 2+ state by recoil-distance Doppler-shift (RDDS) method at the FN Tandem facility of the University of Cologne. 212Po; deduced levels, J, π, B(E2). Comparisons with levels and B(E2) of 210Po and 210Pb, and with theoretical calculations using shell model. Systematics of B(E2) values for the first 2+ states in 20Ne, 44Ti, 52Ti, 136Te, 212Po, nuclei with two valence protons and two valence neutrons.
doi: 10.1103/PhysRevC.96.044305
2017LE06 Phys.Rev.Lett. 118, 162502 (2017) S.Leoni, B.Fornal, N.Marginean, M.Sferrazza, Y.Tsunoda, T.Otsuka, G.Bocchi, F.C.L.Crespi, A.Bracco, S.Aydin, M.Boromiza, D.Bucurescu, N.Cieplicka-Orynczak, C.Costache, S.Calinescu, N.Florea, D.G.Ghita, T.Glodariu, A.Ionescu, L.W.Iskra, M.Krzysiek, R.Marginean, C.Mihai, R.E.Mihai, A.Mitu, A.Negret, C.R.Nita, A.Olacel, A.Oprea, S.Pascu, P.Petkov, C.Petrone, G.Porzio, A.Serban, C.Sotty, L.Stan, I.Stiru, L.Stroe, R.Suvaila, S.Toma, A.Turturica, S.Ujeniuc, C.A.Ur Multifaceted Quadruplet of Low-Lying Spin-Zero States in 66Ni: Emergence of Shape Isomerism in Light Nuclei NUCLEAR REACTIONS 64Ni(18O, X)66Ni, E=39 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced lifetimes, B(E2), J, π. Plunger technique, comparison with the state-of-the-art Monte Carlo shell model calculations.
doi: 10.1103/PhysRevLett.118.162502
2017MA12 Phys.Rev. C 95, 034304 (2017); Erratum Phys.Rev. C 98, 019902 (2018) G.Maquart, L.Augey, L.Chaix, I.Companis, C.Ducoin, J.Dudouet, D.Guinet, G.Lehaut, C.Mancuso, N.Redon, O.Stezowski, A.Vancraeyenest, A.Astier, F.Azaiez, S.Courtin, D.Curien, I.Deloncle, O.Dorvaux, G.Duchene, B.Gall, T.Grahn, P.Greenlees, A.Herzan, K.Hauschild, U.Jakobsson, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, A.Lopez-Martens, P.Nieminen, P.Petkov, P.Peura, M.-G.Porquet, P.Rahkila, S.Rinta-Antila, M.Rousseau, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, J.Uusitalo Backbending in the pear-shaped 22390Th nucleus: Evidence of a high-spin octupole to quadrupole shape transition in the actinides NUCLEAR REACTIONS 208Pb(18O, 3n), E=85 MeV; measured Eγ, Iγ, γγ-coin, angular distribution ADO ratios using EUROBALL IV array at IReS-Strasbourg Vivitron facility. 223Th; deduced high-spin levels, J, π, multipolarity, alternating-parity reflection-symmetric bands classified in terms of simplex quantum numbers, backbending, alignments, high-spin octupole to quadrupole shape transition. Systematics of splitting between states with opposite parity within the same rotational band in 221,223,225Th.
doi: 10.1103/PhysRevC.95.034304
2017PE01 Nucl.Phys. A957, 240 (2017) P.Petkov, A.Dewald, O.Moller, I.Deloncle, R.Chapman, S.Pascu, D.Bucurescu, D.Tonev, M.Reese, C.Fransen, S.Y.Araddad, G.Asova, J.Copnell, N.Goutev, M.Hackstein, J.Jolie, J.C.Lisle, J.N.Mo, Th.Pissulla, W.Rother, A.G.Smith, C.Tenereiro, D.M.Thompson, K.O.Zell On the quadrupole collectivity in the yrast band of 168Yb NUCLEAR REACTIONS 154Sm(18O, 4n), E=80 MeV;124Sn(48Ca, 4n), E=189 MeV; measured Eγ, Iγ, γγ-coin, RDDS (Recoil distance Doppler-shift) spectra using five large volume Ge (Sm target) and 21 escape-suppressed HPGe (Sn target). 168Yb deduced T1/2, B(E2) of levels using lifetime analysis with differential decay curve method (one B(E2) deduced using published T1/2), yrast band quadrupole moments; calculated B(E2) vs spin. Yrast band moments of inertia and B(E2) compared with published values for 164,166,168,170Yb; deduced indication for reduced collectivity at low spin unexplained by available calculations.
doi: 10.1016/j.nuclphysa.2016.09.006
2017PE14 Phys.Rev. C 96, 034326 (2017); Erratum Phys.Rev. C 98, 019904 (2018) P.Petkov, C.Muller-Gatermann, A.Dewald, A.Blazhev, C.Fransen, J.Jolie, P.Scholz, K.O.Zell, A.Zilges Lifetime measurements with improved precision in 30, 32S and possible influence of large-scale clustering on the appearance of strongly deformed states NUCLEAR REACTIONS 28Si(3He, n)30S, E=8 MeV; 29Si(α, n)32S, E=9 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by Doppler-shift attenuation method (DSAM) using HORUS array of HPGe detectors at the FN Tandem accelerator facility of the University of Cologne. 30,32S; deduced levels, J, π, relative population, B(E2), B(M1). Comparison with previous experimental results for level half-lives, and with two-band mixing calculation. Systematics of low-lying quadrupole states in 28,30,32,34,36,38S. 32S; discussed electromagnetic E2 transition strengths and quadrupole moment in terms of two doubly magic 16O clusters. 80Zr; discussed superdeformed yrast band in terms of two 40Ca clusters.
doi: 10.1103/PhysRevC.96.034326
2017QU05 Phys.Rev. C 96, 044313 (2017) M.Queiser, A.Vogt, M.Seidlitz, P.Reiter, T.Togashi, N.Shimizu, Y.Utsuno, T.Otsuka, M.Honma, P.Petkov, K.Arnswald, R.Altenkirch, B.Birkenbach, A.Blazhev, T.Braunroth, A.Dewald, J.Eberth, C.Fransen, B.Fu, H.Hess, R.Hetzenegger, R.Hirsch, J.Jolie, V.Karayonchev, L.Kaya, L.Lewandowski, C.Muller-Gatermann, J.-M.Regis, D.Rosiak, D.Schneiders, B.Siebeck, T.Steinbach, K.Wolf, K.-O.Zell Cross-shell excitations from the fp shell: Lifetime measurements in 61Zn NUCLEAR REACTIONS 40Ca(24Mg, n2p), E=77 MeV; 58Ni(α, n), E=19 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ), level half-lives by recoil-distance Doppler-shift (RDDS) method using Cologne plunger device and an array of 12 HPGe detectors, and by γγ(t) electronic fast timing technique using eight HPGe detectors and eight LaBr3:Ce detectors at the Tandem accelerator facility of the University of Cologne. 61Zn; deduced high-spin levels, nano-second isomers, J, π, multipolarities, mixing ratios, B(E2), B(E1), B(M1), B(M2), configurations, deformation. Comparison with shell-model calculations using jj44b, GXPF1, GXPF1A, and GXPF1Br+VMU interactions.
doi: 10.1103/PhysRevC.96.044313
2016KI20 Bulg.J.Phys. 43, 195 (2016) S.Kisyov, S.Lalkovski, D.Ivanova, N.Marginean, D.Bucurescu, Gh.Cata-Danil, I.Cata-Danil, D.Deleanu, N.Florea, D.Ghita, T.Glodariu, R.Lica, R.Marginean, C.Mihai, A.Negret, C.Nita, A.Olacel, S.Pascu, P.Petkov, T.Sava, E.A.Stefanova, R.Suvaila, S.Toma, O.Yordanov, N.V.Zamfir Triaxial Isomer in 103Ru NUCLEAR REACTIONS 100Mo(α, n), E=15-18 MeV; measured Eγ, Iγ, γγ-coin, isomer half-life by γγ(t) using ROSPHERE array of 11 LaBr3(Ce) and 14 HPGe detectors at Tandem accelerator facility of IFIN-HH, Bucharest. 103Ru; deduced levels, J, π, B(E1). Comparison with triaxial rotor plus particle model calculations.
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2016KO03 Phys.Rev. C 93, 011303 (2016) D.Kocheva, G.Rainovski, J.Jolie, N.Pietralla, C.Stahl, P.Petkov, A.Blazhev, A.Hennig, A.Astier, Th.Braunroth, M.L.Cortes, A.Dewald, M.Djongolov, C.Fransen, K.Gladnishki, V.Karayonchev, J.Litzinger, C.Muller-Gatermann, M.Scheck, Ph.Scholz, R.Stegmann, P.Thole, V.Werner, W.Witt, D.Wolk, P.Van Isacker Low-lying isovector 2+ valence-shell excitations of 212Po NUCLEAR REACTIONS 208Pb(12C, 2α)212Po, E=62 MeV; measured Eγ, Iγ, (particle)γ-, γγ-coin, enriched target, level half-lives by DSAM and line-shape analysis using an array of 12 HPGe detectors for γ detection, and solar cell array for reaction products at FN Tandem facility of the University of Cologne. 212Po; deduced levels, J, π, B(M1), B(E2) of second and third 2+ states as candidates for one-phonon mixed-symmetry states (MSS). Comparison with simple single-j shell model calculation. 211Po; observed γ rays. 209,210Po, 208Pb, 209Bi; reaction products measured in coincidence with γ rays.
doi: 10.1103/PhysRevC.93.011303
2016KO04 Phys.Rev. C 93, 014320 (2016) T.Konstantinopoulos, S.F.Ashley, M.Axiotis, A.Spyrou, S.Harissopulos, A.Dewald, J.Litzinger, O.Moller, C.Muller-Gatterman, P.Petkov, D.R.Napoli, N.Marginean, G.de Angelis, C.A.Ur, D.Bazzacco, E.Farnea, S.M.Lenzi, R.Vlastou, D.Balabanski Lifetime measurements in 102Pd: Searching for empirical proof of the E(5) critical-point symmetry in nuclear structure NUCLEAR REACTIONS 92Zr(13C, 3n), E=48 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by recoil distance Doppler-shift (RDDS) technique and analysis by differential decay curve method (DDCM). GASP array at XTU Tandem Van de Graaff accelerator at Legnaro. 102Pd; deduced levels, J, π, B(E2), configurations; calculated contours of the energy functional in (β, γ) plane. Comparison of B(E2) values with IBA model and predictions of E(5) critical-point symmetry.
doi: 10.1103/PhysRevC.93.014320
2016TH01 Nucl.Phys. A947, 203 (2016) T.Thomas, V.Werner, J.Jolie, K.Nomura, T.Ahn, N.Cooper, H.Duckwitz, A.Fitzler, C.Fransen, A.Gade, M.Hinton, G.Ilie, K.Jessen, A.Linnemann, P.Petkov, N.Pietralla, D.Radeck Nuclear structure of 96, 98Mo: Shape coexistence and mixed-symmetry states NUCLEAR REACTIONS 96Zr(3He, 3n), E=18 MeV;96Zr(α, 2n), E=16 MeV;measured Eγ, Iγ(θ), γγ-coin using OSIRIS and YRAST Ball spectrometer; deduced γ angular correlations; deduced levels, J, π, branching and E2/M1 mixing ratios, B(M1), B(E2), lifetimes of discrete γ transitions using Doppler Shift Attenuation Method; calculated β, γ deformations using Skyrme energy density functional, IBM-2 configuration mixing; deduced parameters, one- and two-phonon mixed-symmetry states, shape coexistence.
doi: 10.1016/j.nuclphysa.2015.12.010
2015HE17 Nucl.Instrum.Methods Phys.Res. A794, 171 (2015) A.Hennig, V.Derya, M.N.Mineva, P.Petkov, S.G.Pickstone, M.Spieker, A.Zilges Lifetime measurement of excited low-spin states via the (p, p'γ) reaction NUCLEAR REACTIONS 96Ru(p, p'), E=7 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, T1/2. Doppler-shift attenuation method (DSAM) following the inelastic proton scattering reaction, comparison with available data.
doi: 10.1016/j.nima.2015.05.024
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
2015KI14 Bulg.J.Phys. 42, 583 (2015) S.Kisyov, S.Lalkovski, D.Ivanova, N.Marginean, D.Bucurescu, Gh.Cata-Danil, I.Cata-Danil, D.Deleanu, D.G.Gihta, T.Glodariu, R.Lica, R.Marginean, C.Mihai, A.Negret, C.R.Nita, S.Pascu, P.Petkov, T.Sava, E.Stefanova, R.Suvaila, S.Toma, O.Yordanov, N.V.Zamfir Structure of Low-Lying PositiveParity States in 99, 101, 103Ru from In-Beam Fast-Timing Measurements NUCLEAR REACTIONS 96,98,100Mo(α, n), E=15-18 MeV; measured Eγ, Iγ, γγ-coin, half-lives of isomers by γγ(t) using ROSPHERE array of 11 LaBr3(Ce) and 14 HPGe detectors at Tandem accelerator facility of IFIN-HH, Bucharest. 99,101,103Ru; deduced levels, J, π, B(M1), B(E2). Comparison with triaxial rotor. plus particle model calculations.
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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
2014LA15 Phys.Rev. C 89, 064312 (2014) S.Lalkovski, D.Ivanova, E.A.Stefanova, A.Korichi, P.Petkov, J.Kownacki, T.Kutsarova, A.Minkova, D.Bazzacco, M.Bergstrom, A.Gorgen, B.Herskind, H.Hubel, A.Jansen, S.Kisyov, T.L.Khoo, F.G.Kondev, A.Lopez-Martens, Zs.Podolyak, G.Schonwasser, O.Yordanov Coexisting structures in 105Ru NUCLEAR REACTIONS 168Er(30Si, F), E=142 MeV; measured Eγ, Iγ, γγ-coin using EUROBALL III spectrometer. 105Ru; deduced high-spin levels, J, π, bands, conversion coefficient, multipolarity, B(M1), B(E2). Comparison with rigid-triaxial-rotor-plus-particle model and shell-model calculations, and previous experimental results and evaluated data.
doi: 10.1103/PhysRevC.89.064312
2014NA15 Phys.Lett. B 728, 303 (2014) F.Naqvi, V.Werner, P.Petkov, T.Ahn, N.Cooper, G.Ilie, D.Radeck, C.Bernards, M.P.Carpenter, C.J.Chiara, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, D.Seweryniak, Ch.Stoyanov, S.Zhu Test of the π g7/2 subshell closure at Z = 58 NUCLEAR REACTIONS 24Mg(138Ce, 138Ce'), E=480 MeV; 24Mg(142Ce, 142Ce'), E=494 MeV; measured reaction products, Eγ, Iγ, particle-γ coin. 138,142Ce; deduced g-factors, B(E2) values. Yale plunger device and Gammasphere array.
doi: 10.1016/j.physletb.2013.11.057
2014TO01 Phys.Rev.Lett. 112, 052501 (2014) D.Tonev, M.S.Yavahchova, N.Goutev, G.de Angelis, P.Petkov, R.K.Bhowmik, R.P.Singh, S.Muralithar, N.Madhavan, R.Kumar, M.K.Raju, J.Kaur, G.Mohanto, A.Singh, N.Kaur, R.Garg, A.Shukla, Ts.K.Marinov, S.Brant Candidates for Twin Chiral Bands in 102Rh NUCLEAR REACTIONS 94Zr(11B, 3n), E=36 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, T1/2, B(E2), B(M1). Two quasiparticles plus triaxial rotor model calculations, Indian National Gamma Array, DSA technique.
doi: 10.1103/PhysRevLett.112.052501
2013DU02 Nucl.Phys. A903, 18 (2013) H.Duckwitz, M.Pfeiffer, M.Albers, C.Bernards, C.Fransen, J.Jolie, P.Petkov, D.Radeck, T.Thomas, K.O.Zell Study of vibrational signatures in 102Ru NUCLEAR REACTIONS 100Mo(α, 2n), E=16 MeV; measured Eγ, Iγ(θ), γγ-coin using HORUS spectrometer. 102Ru deduced levels, J, π, γ-branching ratio, , mixing ratio, T1/2, B(M1), B(E2), partial γ-decay scheme using using DSAM (Doppler shift attenuation method); calculated levels, J, π, γ-branching ratio, B(E2) using IBM with U(5), O(6), U(5)-O(6). Compared also with systematics.
doi: 10.1016/j.nuclphysa.2012.11.013
2013GL01 Nucl.Phys. A903, 1 (2013) K.A.Gladnishki, P.Petkov, A.Dewald, O.Moller, I.Deloncle, D.Tonev, M.Reese, C.Fransen, M.Hackstein, J.Jolie, Th.Pissulla, W.Rother, K.O.Zell Plunger lifetimes and electromagnetic transition strengths in odd 167Yb NUCLEAR REACTIONS 154Sm(18O, 5n), E=80 MeV; measured Eγ, Iγ(θ), γγ-coin. 167Yb calculated B(E2), quadrupole moment, branching ratios using PTRM (particle plus triaxial rotor model); deduced T1/2, B(E2), B(E1) for specific levels in bands, branching ratios using RDDS (recoil distance Doppler shift) and DDCM (differential decay curve method), quadrupole moment, triaxiality using calculations.
doi: 10.1016/j.nuclphysa.2013.02.010
2013LA25 Phys.Rev. C 88, 024302 (2013) S.Lalkovski, A.M.Bruce, A.M.D.Bacelar, M.Gorska, S.Pietri, Zs.Podolyak, P.Bednarczyk, L.Caceres, E.Casarejos, I.J.Cullen, P.Doornenbal, G.F.Farrelly, A.B.Garnsworthy, H.Geissel, W.Gelletly, J.Gerl, J.Grebosz, C.Hinke, G.Ilie, D.Ivanova, G.Jaworski, S.Kisyov, I.Kojouharov, N.Kurz, N.Minkov, S.Myalski, M.Palacz, P.Petkov, W.Prokopowicz, P.H.Regan, H.Schaffner, S.Steer, S.Tashenov, P.M.Walker, H.J.Wollersheim Submicrosecond isomer in 45117RH72 and the role of triaxiality in its electromagnetic decay rate NUCLEAR REACTIONS 9Be(238U, F)117Rh/117Ru/121Pd/122Ag/123Ag/124Ag, E=750 MeV/nucleon; measured yields. 9Be(238U, F)117Rh, E=750 MeV/nucleon; measured Eγ, (fragment)γ-coin, (fragment)γ(t), isomer half-life at GSI facility using FRS-RISING setup. 117Rh; deduced level, isomer, J, π, B(Eλ) and B(Mλ) transition probabilities; comparison with deformed shell model, and particle-rotor model calculations. Systematics of low-lying levels and isomers in 101,103,105,107,109,111,113,115Rh nuclei. Role of triaxiality in the decay of isomers.
doi: 10.1103/PhysRevC.88.024302
2013PE19 Phys.Rev. C 88, 034323 (2013) P.Petkov, M.S.Yavahchova, O.Moller, A.Dewald, D.Tonev, B.Saha, A.Fitzler, K.Jessen, T.Klug, S.Heinze, J.Jolie, P.von Brentano, N.Goutev, D.Bazzacco, C.A.Ur, E.Farnea, M.Axiotis, S.Lunardi, G.de Angelis, D.R.Napoli, N.Marginean, T.Martinez, M.A.Caprio Lifetimes and electromagnetic transition strengths in 155Dy NUCLEAR REACTIONS 124Sn(36S, 5n), E=155 MeV; measured Eγ, Doppler shifts, half-lives of high-spin levels by RDDS and DSAM using GASP array at XTU tandem accelerator facility in Legnaro. Analysis by differential decay-curve method (DDCM). 155Dy; deduced levels, B(E2), B(M1), B(E1) and B(M2), collectivity as function of spin, band termination. Comparison with previous experimental data, and with particle-plus-triaxial-rotor model calculations.
doi: 10.1103/PhysRevC.88.034323
2013SM02 Phys.Rev. C 87, 044317 (2013) M.K.Smith, V.Werner, J.R.Terry, N.Pietralla, P.Petkov, Z.Berant, R.J.Casperson, A.Heinz, G.Henning, R.Luttke, J.Qian, B.Shoraka, G.Rainovski, E.Williams, R.Winkler Centrifugal stretching from lifetime measurements in the 170Hf ground state band NUCLEAR REACTIONS 124Sn(50Ti, 4n), E=195 MeV; measured Eγ, Iγ, γγ-coin, level-half-lives of ground-state band members by RDDS and DDCM method using the YRAST-Ball array and the New-Yale Plunger device at WNSL facility. 170Hf; deduced levels, B(E2), transition quadrupole moments Qt, centrifugal stretching. Comparison with the rigid rotor, and confined β-soft rotor model.
doi: 10.1103/PhysRevC.87.044317
2013TH09 Phys.Rev. C 88, 044305 (2013) T.Thomas, K.Nomura, V.Werner, T.Ahn, N.Cooper, H.Duckwitz, M.Hinton, G.Ilie, J.Jolie, P.Petkov, D.Radeck Evidence for shape coexistence in 98Mo NUCLEAR REACTIONS 96Zr(α, 2n), E=16 MeV; measured Eγ, γγ-coin, γγ(θ) using YRAST Ball array at WNSL, Yale facility. 98Mo; deduced levels, J, π, mixing ratios, B(E2). Comparison with IBA model calculations. Shape coexistence and configuration mixing. NUCLEAR STRUCTURE 96,98,100Mo; calculated potential energy surface contours in (β, γ) plane. 98Mo; calculated levels, J, π, B(E2). Comparison with experimental data. 93,95,97,99Mo; observed γ rays.
doi: 10.1103/PhysRevC.88.044305
2012GL01 Nucl.Phys. A877, 19 (2012) K.A.Gladnishki, P.Petkov, A.Dewald, C.Fransen, M.Hackstein, J.Jolie, Th.Pissulla, W.Rother, K.O.Zell Yrast electromagnetic transition strengths and shape coexistence in 182Pt NUCLEAR REACTIONS 170Yb(16O, 4n), E=87 MeV; measured Eγ, Iγ, γγ-coin. 182Pt deduced yrast band T1/2, transition quadrupole moment, B(E2) using RDDS (recoil distance Doppler shift), DDCM (differential decay curve method); calculated levels, J, π, quadrupole moment, deformation, shape coexistence, B(E2) using general collective model, extended consistent Q-formalism, IBM-1. Compared with data.
doi: 10.1016/j.nuclphysa.2012.01.001
2012GL05 J.Phys.:Conf.Ser. 366, 012020 (2012) K.A.Gladnishki, G.Rainovski, P.Petkov, J.Jolie, N.Pietralla, A.Blazhev, A.Damyanova, M.Danchev, A.Dewald, C.Fransen, M.Hackstein, O.Moller, T.Pissulla, M.Reese, W.Rother Search for one-phonon mixed-symmetry states in the radioactive nucleus 140Nd NUCLEAR REACTIONS 140Ce(3He, 3n), E=19.8 MeV; measured Eγ, Iγ(θ), γγ-coin using HPGe coaxial detectors and EUROBALL HPGe cluster detector; deduced γ-ray spectra, T1/2 of the 2+3 2140 keV level, B(M1).
doi: 10.1088/1742-6596/366/1/012020
2012GO31 J.Phys.:Conf.Ser. 366, 012021 (2012) N.Goutev, M.S.Yavahchova, D.Tonev, G.de Angelis, P.Petkov, R.K.Bhowmik, R.P.Singh, S.Muralithar, N.Madhavan, R.Kumar, M.K.Raju, J.Kaur, G.Mahanto, A.Singh, N.Kaur, R.Garg, A.Sukla, Ts.K.Marinov, S.Brant Level scheme investigation of 102Rh NUCLEAR REACTIONS 96Zr(11B, 3n), E=36 MeV; measured Eγ, Iγ(θ), γγ-coin using clover polarization-sensitive Ge detectors with provision for DSAM (Doppler-Shift Attenuation Method); deduced γ cascade angular correlations, 4+1≥2+1≥0+1 and 6+1≥4+1≥2+1 angular correlation patterns, linear polarization of selected γ transitions, ΔI=1 band with negative parity.
doi: 10.1088/1742-6596/366/1/012021
2012PE18 J.Phys.:Conf.Ser. 366, 012036 (2012) P.Petkov, K.A.Gladnsihki, A.Dewald, C.Fransen, M.Hackstein, J.Jolie, T.Pissulla, W.Rother, K.O.Zell 182Pt as a possible candidate for X(5) symmetry NUCLEAR REACTIONS 170Yb(16O, 4n), E=87 MeV; measured Eγ, Iγ(θ), γγ-coin using RDDS (Recoil distance Doppler shift) with five large volume Ge detectors and EUROBALL cluster detector. 182Pt deduced T1/2 of selected γ transitions using Differential decay curve method; calculated deformation using IBM-1 ECQF (Extended Consistent Q-formalism) and GCM or Frankfurt model; deduced yrast band quadrupole moments, yrast B(E2), X(5) features, shape coexistence indication.
doi: 10.1088/1742-6596/366/1/012036
2012RO47 J.Phys.:Conf.Ser. 366, 012038 (2012) B.Roussiere, M.A.Cardona, I .Deloncle, D.Hojman, J.Kiener, P.Petkov, D.Tonev, T.Venkova, for the the ALTO collaboration Fast-timing measurements performed at ALTO on 137, 139Cs RADIOACTIVITY 137,139Xe(β-)[from 238U photofission induced by 50 MeV electrons]; measured Eβ, Iβ, daughter nuclei Eγ, Iγ(t), γγ-coin, βγ-coin using fast timing. 137,139Cs deduced low-lying states T1/2, γ transitions, levels. Compared with data on 135Sb and 141Lu.
doi: 10.1088/1742-6596/366/1/012038
2012YA19 J.Phys.:Conf.Ser. 366, 012050 (2012) M.S.Yavahchova, P.Petkov, A.Dewald, O.Moller, B.Saha, A.Fitzler, K.Jessen, D.Tonev, N.Gutev, T.Klug, S.Heinze, J.Jolie, P.von Brentano, D.Bazzacco, C.Ur, E.Farnea, M.Axiotis, S.Lunardi, C.Rossi-Alvarez, G.de Angelis, D.R.Napoli, N.Marginean, T.Martinez, M.Caprio Electromagnetic transition strengths in 155Dy NUCLEAR REACTIONS 124Sn(36S, 5n), E=155 MeV; measured Eγ, Iγi(θ), γγ-coin using RDDS (Recoil distance Doppler shift). 155Dy deduced γ transitions, levels, J, π, T1/2 of selected γ transitions using Differential decay curve method; calculated levels, J, π using PTRM (Particle plus Triaxial Rotor Model), deformation, X(5) features, shape coexistence indications.
doi: 10.1088/1742-6596/366/1/012050
2011AS06 Int.J.Mod.Phys. E20, 785 (2011) A.Astier, P.Petkov, M.-G.Porquet, D.S.Delion, P.Schuck Pure α-208Pb states in 212Po revealed by their enhanced E1 decays, A novel α clustering NUCLEAR REACTIONS 208Pb(18O, 14C)212Po, E=85 MeV; measured reaction products, Eγ, Iγ, γ-γ-γ-coin.; deduced energies, states, J, π, yrast states, B(E1), α-208Pb states.
doi: 10.1142/S0218301311018678
2011AS09 J.Phys.:Conf.Ser. 312, 092014 (2011) A.Astier, P.Petkov, M.-G.Porquet, D.S.Delion, P.Schuck A novel manifestation of α clustering in 212Po: Pure α-208Pb states revealed by their enhanced E1 decays NUCLEAR REACTIONS 208Pb(18O, 14C), E=85 MeV; measured Eγ, Iγ(θ), γγ-coin using Eurobal array of Ge crystals. 212Po deduced γ yrast transitions angular distribution, T1/2 using Doppler shift, B(E1), α-core.
doi: 10.1088/1742-6596/312/9/092014
2011FR17 J.Phys.:Conf.Ser. 312, 092025 (2011) C.Fransen, W.Rother, H.Iwasaki, A.Dewald, T.Baugher, D.Bazin, B.A.Brown, H.L.Crawford, A.Gade, T.N.Ginter, T.Glasmacher, G.F.Grinyer, M.Hackstein, G.Ilie, J.Jolie, S.M.Lenzi, S.McDaniel, D.Miller, P.Petkov, T.Pissulla, A.Ratkiewicz, K.Starosta, C.A.Ur, P.Voss, K.A.Walsh, D.Weisshaar, K.O.Zell Collectivity of Exotic Heavy Fe Isotopes NUCLEAR REACTIONS 197Au(62Fe, X), E=97.8 MeV/nucleon;197Au(64Fe, X), E=95.0 MeV/nucleon;197Au(66Fe, X), E=88.3 MeV/nucleon; measured Doppler shifted Coulomb excitation Eγ, Iγ(θ=30, 1400, t); deduced B(E2), E(2+1). Compared with other data for near-by nuclei.
doi: 10.1088/1742-6596/312/9/092025
2011RO02 Phys.Rev.Lett. 106, 022502 (2011) W.Rother, A.Dewald, H.Iwasaki, S.M.Lenzi, K.Starosta, D.Bazin, T.Baugher, B.A.Brown, H.L.Crawford, C.Fransen, A.Gade, T.N.Ginter, T.Glasmacher, G.F.Grinyer, M.Hackstein, G.Ilie, J.Jolie, S.McDaniel, D.Miller, P.Petkov, Th.Pissulla, A.Ratkiewicz, C.A.Ur, P.Voss, K.A.Walsh, D.Weisshaar, K.-O.Zell Enhanced Quadrupole Collectivity at N=40: The Case of Neutron-Rich Fe Isotopes NUCLEAR REACTIONS 197Au(62Fe, 62Fe'), (64Fe, 64Fe'), (66Fe, 66Fe'), E=97.8, 95, 88.3 MeV/nucleon; measured Eγ, Iγ. 62,64,66Fe; deduced lifetimes, B(E2), deformation parameters. Comparison with shell model calculations, experimental data. Secondary beams from 76Ge fragmentation. COMPILATION Cr, Fe, Ni, Zn, Ge, Se, Kr; Compiled nuclear structure data, B(E2) values and energy of the first excited states for N=24-56.
doi: 10.1103/PhysRevLett.106.022502
2011RO42 Eur.Phys.J. A 47, 106 (2011) B.Roussiere, M.A.Cardona, I.Deloncle, D.Hojman, J.Kiener, P.Petkov, D.Tonev, Ts.Venkova, for the ALTO Collaboration Half-life measurements of 137, 139Cs excited nuclear states RADIOACTIVITY 137,138,139Cs(β-)[from 137,139Xe(β-)[from 238U(e, f), E=50 MeV]]; measured Eγ, Iγ, Eβ, Iβ, βγ-coin, γγ-coin, TAC. 137,139Cs, 138Ba deduced levels, J, π, T1/2, T1/2 for specific decays. 137,139Cs deduced B(M1), B(E2). Sb, Te, I, Xe, Cs, Ba, La, Ce, Pr, Nd, Pm, Sm, Eu compiled M1 hindrance factor for (5/2)+ to (7/2)+ transitions. Comparison with some other Cs isotopes.
doi: 10.1140/epja/i2011-11106-4
2011RO53 Nucl.Instrum.Methods Phys.Res. A654, 196 (2011) W.Rother, A.Dewald, G.Pascovici, C.Fransen, G.Friessner, M.Hackstein, G.Ilie, H.Iwasaki, J.Jolie, B.Melon, P.Petkov, M.Pfeiffer, Th.Pissulla, K.-O.Zell, U.Jakobsson, R.Julin, P.Jones, S.Ketelhut, P.Nieminen, P.Peura, P.Rahkila, J.Uusitalo, C.Scholey, S.Harissopulos, A.Lagoyannis, T.Konstantinopoulos, T.Grahn, D.Balabanski A new recoil distance technique using low energy coulomb excitation in inverse kinematics NUCLEAR REACTIONS Fe(128Xe, 128Xe'), E=3-10 MeV/nucleon; measured Eγ, Iγ, γγ-coin. 128Xe; deduced lifetimes, B(E2). Recoil Distance Doppler Shift technique, comparison with previous values.
doi: 10.1016/j.nima.2011.05.075
2010AL28 Nucl.Phys. A847, 180 (2010) M.Albers, D.Mucher, C.Bernards, A.Blazhev, C.Fransen, S.Heinze, J.Jolie, A.Lisetskiy, P.Petkov, D.Radeck, K.O.Zell Multiphonon excitations in 62Zn NUCLEAR REACTIONS 61Ni(3He, 2nγ), E=14 MeV; measured Eγ, Iγ, γγ-coin, γ(θ) using the HORUS spectrometer. 62Zn; deduced levels, J, π, multipolarities, T1/2, B(M1), B(E2). DSA method. Comparison with shell-model, IBM calculations and systematics.
doi: 10.1016/j.nuclphysa.2010.07.011
2010AS01 Phys.Rev.Lett. 104, 042701 (2010) A.Astier, P.Petkov, M.-G.Porquet, D.S.Delion, P.Schuck Novel Manifestation of α-Clustering Structures: New "α+ 208Pb" States in 212Po Revealed by Their Enhanced E1 Decays NUCLEAR REACTIONS 208Pb(18O, 14C), E=85 MeV; measured Eγ, Iγ; deduced 212Po level scheme, yrast state, lifetimes, B(E1). Doppler-shift attenuation method.
doi: 10.1103/PhysRevLett.104.042701
2010AS03 Eur.Phys.J. A 46, 165 (2010) A.Astier, P.Petkov, M.-G.Porquet, D.S.Delion, P.Schuck Coexistence of "a + 208Pb" cluster structures and single-particle excitations in 21284Po128 NUCLEAR REACTIONS 208Pb(18O, 14C), E=85 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin. 212Po; deduced level scheme, transition energies, γ-ray intensities, J, π, angular-distribution coefficients, internal conversion coefficients, yrast states, lifetimes, B(E1), B(E2), B(E3). EUROBALL project, DSAM method, comparison with low-lying cluster structure models. RADIOACTIVITY 212Po(α); measured decay products, Eγ, Iγ, alpha spectrum; deduced branching ratios, partial T1/2 for yrast states.
doi: 10.1140/epja/i2010-11053-6
2010BI11 Phys.Rev. C 82, 054311 (2010) P.G.Bizzeti, A.M.Bizzeti-Sona, D.Tonev, A.Giannatiempo, C.A.Ur, A.Dewald, B.Melon, C.Michelagnoli, P.Petkov, D.Bazzacco, A.Costin, G.de Angelis, F.Della Vedova, M.Fantuzi, E.Farnea, C.Fransen, A.Gadea, S.Lenzi, S.Lunardi, N.Marginean, R.Marginean, R.Menegazzo, D.Mengoni, O.Moller, A.Nannini, D.R.Napoli, M.Nespolo, P.Pavan, A.Perego, C.M.Petrache, N.Pietralla, C.Rossi Alvarez, P.Sona Transition probabilities in the X(5) candidate 122Ba NUCLEAR REACTIONS 108Cd(16O, 2n), E=62, 64, 65 MeV; 112Sn(13C, 3n), E=59 MeV; measured Eγ, Iγ, γγ-coin, half-lives by recoil-distance Doppler-shift (RDDS) method using plunger device, and differential decay curve method (DDCM). 122Ba; deduced levels, B(E2). Comparison with X(5), IBA-1 and IBA-2 model calculations.
doi: 10.1103/PhysRevC.82.054311
2010DE42 J.Phys.:Conf.Ser. 205, 012044 (2010) I.Deloncle, B.Roussiere, M.A.Cardona, D.Hojman, J.Kiener, P.Petkov, D.Tonev, Ts.Venkova Fast timing: Lifetime measurements with LaBr3 scintillators
doi: 10.1088/1742-6596/205/1/012044
2010FR07 J.Phys.:Conf.Ser. 205, 012043 (2010) C.Fransen, A.Dewald, T.Baumann, D.Bazin, A.Blazhev, B.A.Brown, A.Chester, A.Gade, T.Glasmacher, P.T.Greenlees, M.Hackstein, S.Harissopulos, U.Jakobsson, J.Jolie, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, T.Konstaninopoulos, A.Lagoyannis, M.Leino, P.Nieminen, M.Nyman, P.Petkov, P.Peura, T.Pissulla, P.Rahkila, W.Rother, P .Ruotsalainen, J.Saren, C.Scholey, J.Sorri, K.Starosta, A.Stolz, J.Uusitalo, P.Voss, D.Weisshaar New developments on the recoil distance doppler-shift method
doi: 10.1088/1742-6596/205/1/012043
2010GL05 Phys.Rev. C 82, 037302 (2010) K.A.Gladnishki, G.Rainovski, P.Petkov, J.Jolie, N.Pietralla, A.Blazhev, A.Damyanova, M.Danchev, A.Dewald, C.Fransen, M.Hackstein, D.Karagyozov, O.Moller, T.Pissulla, M.Reese, W.Rother, R.Topchiyska Search for one-phonon mixed-symmetry states in the radioactive nucleus 140Nd NUCLEAR REACTIONS 140Ce(3He, 3n), E=19.8 MeV; measured Eγ, Iγ, γγ-coin, half-lives by DSAM. 140Nd; deduced levels, J, π, transition probabilities, phonon-mixed symmetry states.
doi: 10.1103/PhysRevC.82.037302
2010JE02 Phys.Rev.Lett. 104, 222502 (2010) M.Jentschel, W.Urban, J.Krempel, D.Tonev, J.Dudek, D.Curien, B.Lauss, G.de Angelis, P.Petkov Ultrahigh-Resolution γ-Ray Spectroscopy of 156Gd: A Test of Tetrahedral Symmetry NUCLEAR REACTIONS 155Gd(n, γ), E not given; measured Eγ, Iγ; 156Gd; deduced energy levels, J, π, transition lifetime, B(E2), B(E1), quadrupole moments, odd-spin negative parity band. GAMS4/5 Bragg spectrometers.
doi: 10.1103/PhysRevLett.104.222502
2009CO03 Phys.Rev. C 79, 024307 (2009) A.Costin, M.Reese, H.Ai, R.F.Casten, K.Dusling, C.R.Fitzpatrick, G.Gurdal, A.Heinz, E.A.McCutchan, D.A.Meyer, O.Moller, P.Petkov, N.Pietralla, J.Qian, G.Rainovski, V.Werner Centrifugal stretching along the ground state band of 168Hf NUCLEAR REACTIONS 124Sn(48Ti, 4n), E=190 MeV; measured Eγ, Iγ, γγ-coin, half-lives of g.s. band members using recoil-distance Doppler-shift method. 168Hf; deduced levels, J, π, B(E2). Comparison with predictions of geometrical confined β soft rotor model involving centrifugal stretching.
doi: 10.1103/PhysRevC.79.024307
2009IW03 Phys.Rev.Lett. 102, 202502 (2009) H.Iwasaki, A.Dewald, C.Fransen, A.Gelberg, M.Hackstein, J.Jolie, P.Petkov, T.Pissulla, W.Rother, K.O.Zell Low-Lying Neutron Intruder State in 13B and the Fading of the N = 8 Shell Closure NUCLEAR REACTIONS 7Li(7Li, p), E=5.4 MeV; Measured Iγ, Doppler-shifted Eγ;Deduced level energy, J, π, B(M1). Doppler-shift attenuation method (DSAM).
doi: 10.1103/PhysRevLett.102.202502
2008DE30 Phys.Rev. C 78, 051302 (2008) A.Dewald, K.Starosta, P.Petkov, M.Hackstein, W.Rother, P.Adrich, A.M.Amthor, T.Baumann, D.Bazin, M.Bowen, A.Chester, A.Dunomes, A.Gade, D.Galaviz, T.Glasmacher, T.Ginter, M.Hausmann, J.Jolie, B.Melon, D.Miller, V.Moeller, R.P.Norris, T.Pissulla, M.Portillo, Y.Shimbara, A.Stolz, C.Vaman, P.Voss, D.Weisshaar Collectivity of neutron-rich palladium isotopes and the valence proton symmetry NUCLEAR REACTIONS 9Be(110Pd, 110Pd'), E=66 MeV/nucleon; 9Be(114Pd, 114Pd'), E=69 MeV/nucleon; measured Eγ, Iγ, half-lives using recoil distance doppler shift method. 110,114Pd; deduced levels, J, π, B(E2). 102,104,106,108,112,116Pd, 104,106,108,110,112,114,116,118Cd, 96,98,100,102,104,106,108,110,112,114Ru; systematics of B(E2) values. Coulomb excitation. Comparisons with Interacting Boson Model.
doi: 10.1103/PhysRevC.78.051302
2008GR04 Nucl.Phys. A801, 83 (2008) T.Grahn, A.Dewald, O.Moller, R.Julin, C.W.Beausang, S.Christen, I.G.Darby, S.Eeckhaudt, P.T.Greenlees, A.Gorgen, K.Helariutta, J.Jolie, P.Jones, S.Juutinen, H.Kettunen, T.Kroll, R.Krucken, Y.Le Coz, M.Leino, A.-P.Leppanen, P.Maierbeck, D.A.Meyer, B.Melon, P.Nieminen, M.Nyman, R.D.Page, J.Pakarinen, P.Petkov, P.Rahkila, B.Saha, M.Sandzelius, J.Saren, C.Scholey, J.Uusitalo, M.Bender, P.-H.Heenen Lifetimes of intruder states in 186Pb, 188Pb and 194Po NUCLEAR REACTIONS 106,108Pd, 114Cd(83Kr, 3n), E=340, 357, 375 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin and lifetimes for intruder states using the recoil distance Doppler-shift method. 186,188Pb, 194Po; deduced B(E2), quadrupole moment and deformation parameters. JUROGAM array used with RITU, GREAT spectrometer. Recoil-decay tagging.
doi: 10.1016/j.nuclphysa.2008.01.002
2008LJ01 Phys.Rev.Lett. 100, 102502 (2008) J.Ljungvall, A.Gorgen, M.Girod, J.-P.Delaroche, A.Dewald, C.Dossat, E.Farnea, W.Korten, B.Melon, R.Menegazzo, A.Obertelli, R.Orlandi, P.Petkov, T.Pissulla, S.Siem, R.P.Singh, J.Srebrny, Ch.Theisen, C.A.Ur, J.J.Valiente-Dobon, K.O.Zell, M.Zielinska Shape Coexistence in Light Se Isotopes: Evidence for Oblate Shapes NUCLEAR REACTIONS 40Ca(36Ar, 2pα), (36Ar, 4p), E=136 MeV; measured Eγ, Iγ, γγ-coin, lifetimes using recoil distance doppler shift method. 70,72Se; deduced level energies and B(E2).
doi: 10.1103/PhysRevLett.100.102502
2008PE18 Eur.Phys.J. A 36, 127 (2008) P.Petkov, P.von Brentano, J.Jolie, R.V.Jolos Particle-triaxial rotor calculations for the low-lying states with negative parity in 193Os NUCLEAR STRUCTURE 193Os; calculated excited energy levels, J, π using a particle-triaxial rotor model.
doi: 10.1140/epja/i2007-10586-y
2007GR27 Eur.Phys.J. Special Topics 150, 121 (2007) T.Grahn, A.Dewald, O.Moller, R.Julin, C.W.Beausang, S.Christen, I.G.Darby, S.Eeckhaudt, P.T.Greenlees, A.Gorgen, K.Helariutta, J.Jolie, H.Kettunen, T.Kroll, R.Krucken, P.Jones, S.Juutinen, Y.Le Coz, M.Leino, A.-P.Leppanen, P.Maierbeck, B.Melon, D.A.Meyer, P.Nieminen, M.Nyman, R.Page, J.Pakarinen, P.Petkov, P.Rahkila, B.Saha, M.Sandzelius, J.Saren, C.Scholey, J.Uusitalo Collectivity in neutron-deficient Pb and Po nuclei
doi: 10.1140/epjst/e2007-00282-8
2007PE28 Nucl.Phys. A796, 1 (2007) P.Petkov, J.Jolie, S.Heinze, S.E.Drissi, M.Dorthe, J.Groger, J.L.Schenker Nanosecond lifetimes and electromagnetic transition strengths in 196Au NUCLEAR REACTIONS 196Pt(d, 2n), E=12.2 MeV; measured Eγ, Iγ. 196Au deduced levels T1/2, B(E1), B(E2), B(M1) using centroid shift analysis.
doi: 10.1016/j.nuclphysa.2007.09.002
2007PE29 Phys.Rev. C 76, 044318 (2007); Erratum Phys.Rev. C 77, 019902 (2008) P.Petkov, P.von Brentano, J.Jolie, R.V.Jolos Doublet structure of the negative-parity states in 195Pt supported by particle-rotor calculations NUCLEAR STRUCTURE 195Pt; calculated levels, J, π, B(E2). Compared with experimental values. Particle-rotor model.
doi: 10.1103/PhysRevC.76.044318
2007SC26 Phys.Rev. C 75, 064321 (2007) C.Scholl, P.Petkov, V.Werner, A.Linnemann, T.Adachi, A.Dewald, A.Fitzler, C.Fransen, Y.Fujita, J.Jolie, K.Langanke, A.F.Lisetskiy, G.Martinez-Pinedo, D.Mucher, J.N.Orce, N.Pietralla, N.Warr, K.O.Zell, P.von Brentano New spin assignments in the odd-odd N = Z nucleus 42Sc and the breaking of the 40Ca core NUCLEAR REACTIONS 40Ca(3He, p)42Sc, E=9 MeV; measured Eγ, Iγ, γγ-coinc, and angular correlations. 42Sc deduced levels, J, π, B(E2), B(M1), multipole mixing ratios. Compared results to model calculations.
doi: 10.1103/PhysRevC.75.064321
2007TO21 Phys.Rev. C 76, 044313 (2007) D.Tonev, G.de Angelis, S.Brant, S.Frauendorf, P.Petkov, A.Dewald, F.Donau, D.L.Balabanski, Q.Zhong, P.Pejovic, D.Bazzacco, P.Bednarczyk, F.Camera, D.Curien, F.Della Vedova, A.Fitzler, A.Gadea, G.Lo Bianco, S.Lenzi, S.Lunardi, N.Marginean, O.Moller, D.R.Napoli, R.Orlandi, E.Sahin, A.Saltarelli, J.Valiente-Dobon, K.O.Zell, Jing-ye Zhang, Y.H.Zhang Question of dynamic chirality in nuclei: The case of 134Pr NUCLEAR REACTIONS 119Sn(19F, 4nγ), E=83, 87 MeV; measured Eγ, Iγ, γγ-coin, lifetimes, multipolarity, linear polarization. 134Pr; deduced levels, J, π, band structure, chiral behavior, TQPTT and IBFFM model calculations, B(E2), B(M1).
doi: 10.1103/PhysRevC.76.044313
2007VE14 Eur.Phys.J. A 34, 349 (2007) Ts.Venkova, M.-G.Porquet, I.Deloncle, P.Petkov, A.Astier, A.Prevost, F.Azaiez, A.Bogachev, A.Buta, D.Curien, O.Dorvaux, G.Duchene, J.Durell, B.J.P.Gall, M.Houry, F.Khalfallah, R.Lucas, M.Meyer, I.Piqueras, N.Redon, A.Roach, M.Rousseau, O.Stezowski, Ch.Theisen New high-spin states of 14258Ce and 14056Ba from fusion-fission reactions: Proton excitations in the N = 84 isotones NUCLEAR REACTIONS 238U(12C, X)140Ba/142Ce, E=90 MeV; 208Pb(18O, X)140Ba/142Ce, E=85 MeV; measured Eγ, Iγ, γγ-coin. 140Ba, 142Ce deduced high-spin levels, J, π, configurations. Euroball III and IV arrays.
doi: 10.1140/epja/i2007-10526-y
2006GR16 Phys.Rev.Lett. 97, 062501 (2006) T.Grahn, A.Dewald, O.Moller, R.Julin, C.W.Beausang, S.Christen, I.G.Darby, S.Eeckhaudt, P.T.Greenlees, A.Gorgen, K.Helariutta, J.Jolie, P.Jones, S.Juutinen, H.Kettunen, T.Kroll, R.Krucken, Y.Le Coz, M.Leino, A.-P.Leppanen, P.Maierbeck, D.A.Meyer, B.Melon, P.Nieminen, M.Nyman, R.D.Page, J.Pakarinen, P.Petkov, P.Rahkila, B.Saha, M.Sandzelius, J.Saren, C.Scholey, J.Uusitalo Collectivity and Configuration Mixing in 186, 188Pb and 194Po NUCLEAR REACTIONS 106Pd(83Kr, 3n), E=357 MeV; 108Pd(83Kr, 3n), E=340 MeV; 114Cd(83Kr, 3n), E=375 MeV; measured Doppler-shifted Eγ, Iγ, γγ-, (recoil)γ-coin. 186,188Pb, 194Po levels deduced T1/2, B(E2), transition quadrupole moments. configuration-mixing features. Jurogam array, recoil decay tagging, recoil-distance Doppler-shift technique.
doi: 10.1103/PhysRevLett.97.062501
2006JE04 Phys.Rev. C 74, 021304 (2006) K.Jessen, O.Moller, A.Dewald, P.von Brentano, A.Fitzler, J.Jolie, B.Saha, P.Petkov, F.Brandolini, A.Gadea, S.M.Lenzi, G.de Angelis, E.Farnea, D.R.Napoli, B.J.P.Gall Measurement of lifetimes in 46V with the EUROBALL γ-ray spectrometer NUCLEAR REACTIONS 24Mg(28Si, npα), (28Si, 2pα), E=110 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 46V, 46Ti levels deduced T1/2, B(E1), B(E2). Euroball IV array, recoil-distance technique, differential decay curve method.
doi: 10.1103/PhysRevC.74.021304
2006MO22 Phys.Rev. C 74, 024313 (2006) O.Moller, A.Dewald, P.Petkov, B.Saha, A.Fitzler, K.Jessen, D.Tonev, T.Klug, S.Heinze, J.Jolie, P.von Brentano, D.Bazzacco, C.A.Ur, E.Farnea, M.Axiotis, S.Lunardi, G.de Angelis, D.R.Napoli, N.Marginean, T.Martinez, M.A.Caprio, R.F.Casten Electromagnetic transition strengths in 156Dy NUCLEAR REACTIONS 124Sn(36S, 4n), E=155 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 156Dy levels deduced T1/2, B(E2), transition quadrupole moments, symmetry features. GASP array, recoil-distance technique.
doi: 10.1103/PhysRevC.74.024313
2006PE04 Eur.Phys.J. A 27, 53 (2006) P.Petkov, P.von Brentano, J.Jolie Low-lying states in 195Pt described by the particle-rotor model NUCLEAR STRUCTURE 195Pt; calculated levels, J, μ, B(E2), B(M1). Particle plus triaxial rotor model, comparison with data.
doi: 10.1140/epja/i2005-10244-6
2006PE09 Nucl.Instrum.Methods Phys.Res. A560, 564 (2006) P.Petkov, A.Dewald, P.von Brentano A new procedure for lifetime determination using the Doppler-shift attenuation method NUCLEAR REACTIONS 124Sn(36S, 4n), E=145 MeV; analyzed Eγ, Iγ, DSA. 156Dy levels deduced T1/2. New lineshape analysis technique.
doi: 10.1016/j.nima.2005.12.223
2006TO01 Phys.Rev.Lett. 96, 052501 (2006) D.Tonev, G.de Angelis, P.Petkov, A.Dewald, S.Brant, S.Frauendorf, D.L.Balabanski, P.Pejovic, D.Bazzacco, P.Bednarczyk, F.Camera, A.Fitzler, A.Gadea, S.Lenzi, S.Lunardi, N.Marginean, O.Moller, D.R.Napoli, A.Paleni, C.M.Petrache, G.Prete, K.O.Zell, Y.H.Zhang, J.Zhang, Q.Zhong, D.Curien Transition Probabilities in 134Pr: A Test for Chirality in Nuclear Systems NUCLEAR REACTIONS 119Sn(19F, 4n), E=83, 87 MeV; measured Eγ, Iγ, γγ-coin, DSA. 134Pr deduced rotational bands T1/2, B(E2), B(M1). Doppler-shift attenuation and recoil-distance techniques. Comparison with model predictions.
doi: 10.1103/PhysRevLett.96.052501
2006TO15 Int.J.Mod.Phys. E15, 1531 (2006) D.Tonev, P.Petkov, D.L.Balabanski, G.De Angelis, A.Gadea, D.R.Napoli, N.Marginean, A.Dewald, P.Pejovic, A.Fitzler, O.Moller, K.O.Zell, S.Brant, S.Frauendorf, D.Bazzacco, S.Lenzi, S.Lunardi, P.Bednarczyk, D.Curien, C.Petrache, Q.Zhong, Y.H.Zhang, J.-Y.Zhang Lifetime measurements in 134Pr and Chirality in nuclei NUCLEAR REACTIONS 119Sn(19F, 4n), E=83, 87 MeV; measured Eγ, Iγ, γγ-coin, DSA. 134Pr deduced rotational bands T1/2, B(E2), B(M1). Doppler-shift attenuation and recoil-distance techniques. Comparison with model predictions.
doi: 10.1142/S0218301306004909
2005DE48 J.Phys.(London) G31, S1427 (2005) A.Dewald, O.Moller, B.Saha, K.Jessen, A.Fitzler, B.Melon, T.Pissulla, S.Heinze, J.Jolie, K.O.Zell, P.von Brentano, P.Petkov, S.Harissopulos, G.De Angelis, T.Martinez, D.R.Napoli, N.Marginean, M.Axiotis, C.Rusu, D.Tonev, A.Gadea, Y.H.Zhang, D.Bazzacco, S.Lunardi, C.A.Ur, R.Menegazzo, E.Farnea Test of the critical point symmetry X(5) in the mass A = 180 region NUCLEAR REACTIONS 164,166,168Er(16O, 4n), E=80 MeV; measured prompt and delayed Eγ, Iγ. 154Sm(29Si, 5n), E=158 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 176,178,180Os deduced levels T1/2, transition quadrupole moments, symmetry features. Electronic timing and recoil distance techniques, GASP array, interacting boson model and general collective model predictions.
doi: 10.1088/0954-3899/31/10/008
2005GL09 J.Phys.(London) G31, S1559 (2005) K.A.Gladnishki, D.L.Balabanski, P.Petkov, A.Dewald, D.Tonev, M.Axiotis, A.Fitzler, M.Danchev, S.Harissopulos, S.Lalkovski, N.Marginean, T.Martinez, O.Moeller, G.Neyens, A.Spyrou, E.A.Stefanova, C.Ur Lifetime measurements in the Yrast magnetic band in 193Pb NUCLEAR REACTIONS 170Er(28Si, 5n), E=149 MeV; measured Eγ, Iγ, γγ-coin, DSA. 193Pb deduced magnetic rotational band levels T1/2. GASP array, recoil-distance and Doppler-shift attenuation methods used.
doi: 10.1088/0954-3899/31/10/032
2005GR35 Eur.Phys.J. A 25, Supplement 1, 441 (2005) T.Grahn, A.Dewald, O.Moller, C.W.Beausang, S.Eeckhaudt, P.T.Greenlees, J.Jolie, P.Jones, R.Julin, S.Juutinen, H.Kettunen, T.Kroll, R.Krucken, M.Leino, A.-P.Leppanen, P.Maierbeck, D.A.Meyer, P.Nieminen, M.Nyman, J.Pakarinen, P.Petkov, P.Rahkila, B.Saha, C.Scholey, J.Uusitalo RDDS lifetime measurement with JUROGAM + RITU NUCLEAR REACTIONS 108Pd(83Kr, 3n), E=340 MeV; measured Doppler-shifted Eγ, Iγ, (recoil)γ-coin. 188Pb levels deduced T1/2, B(E2), deformation. Jurogam array, mass separator, recoil-distance technique.
doi: 10.1140/epjad/i2005-06-024-2
2005MO33 Phys.Rev. C 72, 034306 (2005) O.Moller, P.Petkov, B.Melon, A.Dewald, A.Fitzler, J.Jolie, D.Tonev, S.Christen, B.Saha, K.O.Zell, M.Heidemann Lifetimes of the first excited 2+ states in 176, 178, 180Os NUCLEAR REACTIONS 164,166,168Er(16O, 4n), E=80 MeV; measured prompt and delayed Eγ, Iγ, γγ-coin. 166Er(16O, 4n), E=80 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 176,178,180Os deduced levels, J, π, T1/2, B(E2). Pulsed-beam and recoil-distance techniques.
doi: 10.1103/PhysRevC.72.034306
2005PE18 Phys.Rev. C 72, 031304 (2005) R.Peusquens, R.S.Chakrawarthy, A.Dewald, P.Petkov, P.von Brentano, R.Krucken, S.Kasemann, H.Tiesler, K.O.Zell, S.Lunardi, D.Bazzacco, F.Brandolini, N.H.Medina, P.Pavan, C.M.Petrache, C.Rossi-Alvarez, G.de Angelis, G.Maron, M.de Poli, D.R.Napoli Decay out of the highly deformed band in 133Nd NUCLEAR REACTIONS 104Pd(32S, n2p), E=135 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 133Nd levels deduced T1/2, B(E2), decay-out mechanism for highly deformed rotational band. GASP array, recoil-distance method.
doi: 10.1103/PhysRevC.72.031304
2005TO22 Eur.Phys.J. A 25, Supplement 1, 447 (2005) D.Tonev, G.de Angelis, P.Petkov, A.Dewald, A.Gadea, P.Pejovic, D.L.Balabanski, P.Bednarczyk, F.Camera, A.Fitzler, O.Moller, N.Marginean, A.Paleni, C.Petrache, K.O.Zell, Y.H.Zhang Check for chirality in real nuclei NUCLEAR REACTIONS 119Sn(19F, 4n), E=83, 87 MeV; measured Eγ, Iγ, γγ-coin, DSA. 134Pr levels deduced T1/2, B(M1), B(E2), mixing ratios. Euroball IV array, recoil-distance and Doppler-shift attenuation techniques.
doi: 10.1140/epjad/i2005-06-083-3
2005VE09 Eur.Phys.J. A 26, 315 (2005) Ts.Venkova, M.-G.Porquet, A.Astier, I.Deloncle, P.Petkov, A.Prevost, F.Azaiez, A.Bogachev, A.Buta, D.Curien, O.Dorvaux, G.Duchene, J.Durell, B.J.P.Gall, M.Houry, F.Khalfallah, R.Lucas, M.Meyer, I.Piqueras, N.Redon, A.Roach, M.Rousseau, O.Stezowski, Ch.Theisen New high-spin states of 147Nd and 145Ce: Octupole correlation in the N = 87 isotones NUCLEAR REACTIONS 208Pb(18O, X)145Ce, E=85 MeV; 238U(12C, X)147Nd, E=90 MeV; measured Eγ, Iγ, γγ-coin. 147Nd, 145Ce deduced high-spin levels, J, π, configurations. Euroball III and IV arrays.
doi: 10.1140/epja/i2005-10181-4
2004DE15 Eur.Phys.J. A 20, 173 (2004) A.Dewald, O.Moller, D.Tonev, A.Fitzler, B.Saha, K.Jessen, S.Heinze, A.Linnemann, J.Jolie, K.O.Zell, P.von Brentano, P.Petkov, R.F.Casten, M.Caprio, J.R.Cooper, R.Krucken, N.V.Zamfir, D.Bazzacco, S.Lunardi, C.Rossi Alvarez, F.Brandolini, C.Ur, G.De Angelis, D.R.Napoli, E.Farnea, N.Marginean, T.Martinez, M.Axiotis Shape changes and test of the critical-point symmetry X(5) in N = 90 nuclei NUCLEAR REACTIONS 154Gd(32S, 32S'), E=110 MeV; measured Doppler-shifted Eγ, Iγ, (particle)γ-coin following Coulomb excitation. 124Sn(36S, 4n), E=145 MeV; measured Eγ, Iγ, γγ-coin, DSA. 154Gd, 156Dy deduced levels T1/2, transition quadrupole moments, critical-point symmetry features. Recoil-distance and Doppler shift attenuation methods, IBA calculations.
doi: 10.1140/epja/i2002-10347-6
2004OR03 Phys.Rev. C 70, 014314 (2004) J.N.Orce, P.Petkov, C.J.McKay, S.N.Choudry, S.R.Lesher, M.Mynk, D.Bandyopadhyay, S.W.Yates, M.T.McEllistrem Test of isospin purity in the A = 42 isobaric analogs NUCLEAR REACTIONS 40Ca(3He, p), E=4.2, 5.1 MeV; measured Eγ, Iγ, DSA. 42Sc levels deduced T1/2, isoscalar matrix element, isospin purity in isobaric analogs.
doi: 10.1103/PhysRevC.70.014314
2004SA47 Phys.Rev. C 70, 034313 (2004); Erratum Phys.Rev. C 71, 039902 (2005); Comment Phys.Rev. C 72, 029801 (2005) B.Saha, A.Dewald, O.Moller, R.Peusquens, K.Jessen, A.Fitzler, T.Klug, D.Tonev, P.von Brentano, J.Jolie, B.J.P.Gall, P.Petkov Probing nuclear structure of 124Xe NUCLEAR REACTIONS 110Pd(18O, 4n), E=80 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 124Xe deduced high-spin levels, J, π, T1/2, B(E2), B(M1), deformation, band mixing. Euroball IV array, recoil-distance technique. Comparison with interacting boson model predictions.
doi: 10.1103/PhysRevC.70.034313
2004TO09 Phys.Rev. C 69, 034334 (2004) D.Tonev, A.Dewald, T.Klug, P.Petkov, J.Jolie, A.Fitzler, O.Moller, S.Heinze, P.von Brentano, R.F.Casten Transition probabilities in 154Gd: Evidence of X(5) critical point symmetry NUCLEAR REACTIONS 154Gd(32S, 32S'), E=110 MeV; measured Doppler-shifted Eγ, Iγ, (particle)γ-coin following Coulomb excitation. 154Gd deduced levels T1/2, B(E2), critical point symmetry features. Recoil-distance technique.
doi: 10.1103/PhysRevC.69.034334
2003DE24 Phys.Rev. C 68, 034314 (2003) A.Dewald, R.Peusquens, B.Saha, P.von Brentano, A.Fitzler, T.Klug, I.Wiedenhover, M.P.Carpenter, A.Heinz, R.V.F.Janssens, F.G.Kondev, C.J.Lister, D.Seweryniak, K.Abu Saleem, R.Krucken, J.R.Cooper, C.J.Barton, K.Zyromski, C.W.Beausang, Z.Wang, P.Petkov, A.M.Oros-Peusquens, U.Garg, S.Zhu Recoil-gated plunger lifetime measurements in 188Pb NUCLEAR REACTIONS 40Ca(152Sm, 4n), E=805 MeV; measured Doppler-shifted Eγ, Iγ, γγ-, (recoil)γ-coin. 188Pb levels deduced T1/2, B(E2), deformation, collectivity. Recoil-distance technique, Gammasphere array, mass separator. Three-band mixing calculation.
doi: 10.1103/PhysRevC.68.034314
2003GA46 Acta Phys.Pol. B34, 2429 (2003) A.Gadea, G.De Angelis, E.Farnea, N.Marginean, M.Axiotis, T.Martinez, D.R.Napoli, Th.Kroell, M.De Poli, P.Spolaore, E.Fioretto, S.M.Lenzi, E.Maglione, C.Ur, S.Lunardi, R.Menegazzo, P.Pavan, R.Venturelli, F.Brandolini, C.Rossi Alvarez, G.Nardelli, M.Bellato, A.Bracco, F.Camera, G.Colo, D.Bucurescu, M.Ionescu-Bujor, A.Iordachescu, D.Curien, O.Dorvaux, N.Kintz, C.Ring, H.Grawe, J.Nyberg, M.Weiszflog, A.Dewald, J.Eberth, T.Steinhardt, I.Stefanescu, O.Thelen, A.Fitzler, S.Kasemann, T.Klug, P.Petkov, W.Gelletly, A.M.Bizzeti-Sona, P.G.Bizzeti, B.Quintana, B.Rubio, J.L.Tain, A.Algora, V.F.E.Pucknell, R.Wyss Spectroscopy of heavy N = Z nuclei with GASP and EUROBALL
2003PE10 Phys.Rev. C 67, 054306 (2003) P.Petkov, A.Dewald, A.Fitzler, T.Klug, G.de Angelis, E.Farnea, A.Gadea, R.Isocrate, N.Marginean, D.R.Napoli, D.Curien, N.Kintz, S.Lenzi, S.Lunardi, R.Menegazzo, V.Pucknell, C.Ring Electromagnetic B(E2) transition strengths along the yrast negative-parity band of 113I NUCLEAR REACTIONS 58Ni(58Ni, 3p), E=210 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 113I deduced levels T1/2, B(E1), B(E2), configurations. Euroball IV array, recoil-distance technique, three-band mixing calculation.
doi: 10.1103/PhysRevC.67.054306
2003PE22 Phys.Rev. C 68, 034328 (2003) P.Petkov, A.Dewald, O.Moller, B.Saha, A.Fitzler, K.Jessen, D.Tonev, T.Klug, S.Heinze, J.Jolie, P.von Brentano, D.Bazzacco, C.Ur, E.Farnea, M.Axiotis, S.Lunardi, C.Rossi-Alvarez, G.de Angelis, D.R.Napoli, N.Marginean, T.Martinez, M.Caprio, R.F.Casten Collectivity at high spins in 156Dy NUCLEAR REACTIONS 124Sn(36S, 4n), E=145 MeV; measured Eγ, Iγ, γγ-coin, DSA. 156Dy deduced high-spin levels T1/2, B(E2), collectivity. GASP array, comparison with mean-field model predictions.
doi: 10.1103/PhysRevC.68.034328
2002DE26 Phys.Lett. 535B, 93 (2002) G.de Angelis, A.Gadea, E.Farnea, R.Isocrate, P.Petkov, N.Marginean, D.R.Napoli, A.Dewald, M.Bellato, A.Bracco, F.Camera, D.Curien, M.De Poli, E.Fioretto, A.Fitzler, S.Kasemann, N.Kintz, T.Klug, S.Lenzi, S.Lunardi, R.Menegazzo, P.Pavan, J.L.Pedroza, V.Pucknell, C.Ring, J.Sampson, R.Wyss Coherent Proton-Neutron Contribution to Octupole Correlations in the Neutron-Deficient 114Xe Nucleus NUCLEAR REACTIONS 58Ni(58Ni, 2p), E=210 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, γ-ray polarization, Doppler-shifted spectra. 114Xe deduced high-spin levels, J, π, configurations, T1/2, B(Eλ), octupole collectivity. Euroball IV, Euclides arrays, recoil-distance technique. Cranked mean-field calculations.
doi: 10.1016/S0370-2693(02)01728-8
2002PE13 Nucl.Instrum.Methods Phys.Res. A488, 555 (2002) P.Petkov, D.Tonev, A.Dewald, P.von Brentano Lifetime Analysis using the Doppler-Shift Attenuation Method with a Gate on Depopulating Transition
doi: 10.1016/S0168-9002(02)00555-7
2002PO11 Eur.Phys.J. A 15, 463 (2002) M.-G.Porquet, Ts.Venkova, P.Petkov, A.Bauchet, I.Deloncle, A.Astier, N.Buforn, J.Duprat, B.J.P.Gall, C.Gautherin, E.Gueorguieva, F.Hoellinger, T.Kutsarova, R.Lucas, M.Meyer, A.Minkova, N.Redon, N.Schulz, H.Sergolle, A.Wilson High-spin structure of the neutron-rich odd-odd 106, 10845Rh and 110, 11247Ag isotopes NUCLEAR REACTIONS 176Yb(28Si, X)104Rh/106Rh/108Rh/110Ag/112Ag, E=145 MeV; measured Eγ, Iγ, γγ-coin following compound nucleus fission. 104,106,108Rh, 110,112Ag deduced high-spin levels, J, π, configurations. Eurogam2 array, particle-rotor model analysis.
doi: 10.1140/epja/i2001-10269-9
2002SH09 Phys.Rev. C65, 034320 (2002) S.L.Shepherd, J.Simpson, A.Dewald, P.Petkov, P.J.Nolan, M.A.Riley, A.J.Boston, T.B.Brown, R.M.Clark, P.Fallon, D.J.Hartley, S.Kasemann, R.Krucken, P.von Brentano, R.W.Laird, E.S.Paul, R.Peusquens High Precision Quadrupole Moment Measurements of States up to I = 20(h-bar) in the Yrast Band of 158Er NUCLEAR REACTIONS 122Sn(40Ar, 4n), E=185 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 158Er levels deduced T1/2, B(E2), transition quadrupole moments. Gammasphere array, recoil-distance technique.
doi: 10.1103/PhysRevC.65.034320
2002TO05 Phys.Rev. C65, 034314 (2002) D.Tonev, P.Petkov, A.Dewald, T.Klug, P.von Brentano, W.Andrejtscheff, S.M.Lenzi, D.R.Napoli, N.Marginean, F.Brandolini, C.A.Ur, M.Axiotis, P.G.Bizzeti, A.Bizzeti-Sona Transition Rates and Nuclear Structure Changes in Mirror Nuclei 47Cr and 47V NUCLEAR REACTIONS 28Si(28Si, n2α), (28Si, p2α), E=110 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin, DSA. 47Cr, 47V deduced levels, J, π, T1/2, transition quadrupole moments. Euroball III, ISIS arrays. Comparison with shell model calculations.
doi: 10.1103/PhysRevC.65.034314
2001GA52 Nucl.Phys. A691, 551 (2001) J.Gableske, A.Dewald, H.Tiesler, M.Wilhelm, T.Klemme, O.Vogel, I.Schneider, R.Peusquens, S.Kasemann, K.O.Zell, P.von Brentano, P.Petkov, D.Bazzacco, C.Rossi Alvarez, S.Lunardi, G.de Angelis, M.de Poli, C.Fahlander Collectivity of the Intruder Bands in 114Sn NUCLEAR REACTIONS 100Mo(18O, 4n), E=70 MeV; measured Eγ, Iγ, γγ-coin, DSA. 114Sn deduced high-spin levels, J, π, configurations, T1/2, B(E2), B(E1), B(M1). GASP array. Lineshape and differential decay curve analyses, comparison with model predictions.
doi: 10.1016/S0375-9474(01)00564-4
2001PE01 Phys.Rev. C63, 014304 (2001) P.Petkov, A.Dewald, R.Peusquens, S.Kasemann, R.Krucken, K.O.Zell, P.von Brentano, S.Lunardi, D.Bazzacco, F.Brandolini, N.H.Medina, P.Pavan, C.M.Petrache, C.Rossi-Alvarez, G.de Angelis, M.de Poli, D.R.Napoli Low-Lying Bands with Different Quadrupole Deformation in 133Nd NUCLEAR REACTIONS 104Pd(32S, n2p), E=135 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 133Nd levels deduced T1/2, B(M1), B(E2), δ, quadrupole deformation. GASP array, recoil-distance method.
doi: 10.1103/PhysRevC.63.014304
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