NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = J.Khuyagbaatar Found 83 matches. 2024KH02 Phys.Rev. C 109, 034311 (2024) J.Khuyagbaatar, R.A.Cantemir, Ch.E.Dullmann, E.Jager, B.Kindler, J.Krier, N.Kurz, B.Lommel, B.Schausten, A.Yakushev Decay properties of the neutron-deficient isotope 242Es
doi: 10.1103/PhysRevC.109.034311
2023CO04 Phys.Rev. C 107, L021301 (2023) D.M.Cox, A.Saamark-Roth, D.Rudolph, L.G.Sarmiento, R.M.Clark, J.L.Egido, P.Golubev, J.Heery, A.Yakushev, S.AAberg, H.M.Albers, M.Albertsson, M.Block, H.Brand, T.Calverley, R.Cantemir, B.G.Carlsson, Ch.E.Dullmann, J.Eberth, C.Fahlander, U.Forsberg, J.M.Gates, F.Giacoppo, M.Gotz, S.Gotz, R.-D.Herzberg, Y.Hrabar, E.Jager, D.Judson, J.Khuyagbaatar, B.Kindler, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, L.Lens, J.Ljungberg, B.Lommel, J.Louko, C.-C.Meyer, A.Mistry, C.Mokry, P.Papadakis, E.Parr, J.L.Pore, I.Ragnarsson, J.Runke, M.Schadel, H.Schaffner, B.Schausten, D.A.Shaughnessy, P.Thorle-Pospiech, N.Trautmann, J.Uusitalo Spectroscopy along flerovium decay chains. II. Fine structure in odd-A 289Fl RADIOACTIVITY 289Fl(α) [from 244Pu(48Ca, X), E=6.02 MeV/nucleon]; 285Cn(α) [from 289Fl(α)]; 281Ds(α) [from 285Cn(α)]; 277Hs(SF) [from 281Ds(α)]; measured decay products, Eα, Iα, Eβ, Iβ αβ-coin, αα-coin, (fragment)αα-coin; deduced Q-values, T1/2, branching ratios, hindrance factor. 289Fl, 285Cn, 281Ds; deduced J, π and δ assignments based on the derived decay path. Comparison with structure calculations based on the symmetry-conserving configuration mixing theory. Gas-filled recoil separator TASCA was used to transmit, select, and focus the flerovium ions into an upgraded version of the TASISpec decay station consisting of implantation DSSD, veto DSSD and set of HPGe detectors (GSI).
doi: 10.1103/PhysRevC.107.L021301
2023JE01 Phys.Lett. B 837, 137641 (2023) D.Y.Jeung, D.J.Hinde, M.Dasgupta, C.Simenel, E.C.Simpson, K.J.Cook, H.M.Albers, J.Buete, I.P.Carter, Ch.E.Dullmann, J.Khuyagbaatar, B.Kindler, N.Lobanov, B.Lommel, C.Mokry, E.Prasad, J.Runke, C.Sengupta, J.F.Smith, P.Thorle-Pospiech, N.Trautmann, K.Vo-Phuoc, J.Walshe, E.Williams, A.Yakushev Sequential fission and the influence of 208Pb closed shells on the dynamics of superheavy element synthesis reactions NUCLEAR REACTIONS 238U, 244Pu, 248Cm, 249Cf(50Ti, F), E ∼ 230 MeV; measured fission fragments. 208Pb; deduced σ, binary quasifission mass spectra, sequential fission survival probabilities. The ANU Heavy Ion Accelerator Facility.
doi: 10.1016/j.physletb.2022.137641
2023SA03 Phys.Rev. C 107, 024301 (2023) A.Saamark-Roth, D.M.Cox, D.Rudolph, L.G.Sarmiento, M.Albertsson, B.G.Carlsson, J.L.Egido, P.Golubev, J.Heery, A.Yakushev, S.AAberg, H.M.Albers, M.Block, H.Brand, T.Calverley, R.Cantemir, R.M.Clark, Ch.E.Dullmann, J.Eberth, C.Fahlander, U.Forsberg, J.M.Gates, F.Giacoppo, M.Gotz, S.Gotz, R.-D.Herzberg, Y.Hrabar, E.Jager, D.Judson, J.Khuyagbaatar, B.Kindler, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, L.Lens, J.Ljungberg, B.Lommel, J.Louko, C.-C.Meyer, A.Mistry, C.Mokry, P.Papadakis, E.Parr, J.L.Pore, I.Ragnarsson, J.Runke, M.Schadel, H.Schaffner, B.Schausten, D.A.Shaughnessy, P.Thorle-Pospiech, N.Trautmann, J.Uusitalo Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, 282Cn, and spontaneous fission branches RADIOACTIVITY 290,288,286,284Fl(α)(SF) [from 244Pu(48Ca, X), E=6.02 MeV/nucleon]; 282Cn(α)(SF) [286Fl(α)]; 284Cn(α)(SF) [from 288Fl(α)]; 286Cn(α)(SF) [290Fl(α)]; 282Ds(α)(SF) [from 286Cn(α)]; 280Ds(α)(SF) [from 284Cn(α)]; measured decay products, Eα, Iα, Eβ, Iβ αβ-coin, αα-coin, (fragment)αα-coin; deduced Q-values, T1/2, branching ratios, hindrance factor. 282Cn; deduced levels, J, π, T1/2 of excited states, transition rates, monopole transition strengths. Comparison to macroscopic-microscopic finite-range liquid-drop model, self-consistent Hartree-Fock-Bogoliubov calculations and other experimental data. Gas-filled recoil separator TASCA was used to transmit, select, and focus the flerovium ions into an upgraded version of the TASISpec decay station consisting of implantation DSSD, veto DSSD and set of HPGe detectors (GSI).
doi: 10.1103/PhysRevC.107.024301
2022BR08 Phys.Rev. C 106, 014602 (2022) A.Bronis, F.P.Hessberger, S.Antalic, B.Andel, D.Ackermann, S.Heinz, S.Hofmann, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, B.Streicher, B.Sulignano, J.Uusitalo, M.Venhart, A.V.Yeremin Decay studies of new isomeric states in 255No RADIOACTIVITY 250Fm, 252,254,255No(α)[from 208Pb(48Ca, X), E=213.6, 218.4 MeV]; measured Eα. 255mNo(IT); measured Eγ, γ(ce)-coin, γ(ER)-coin; deduced levels, three micro-sec isomers in 255No, J, π, T1/2, multipolarities, Nilsson configurations. Comparison with level scheme of 257Rf from the decay of its isomer, and with theoretical calculations based on the mean-field models. 253mNo, 255mRf, 257mRf; deduced Nilsson configurations of high-K 3-qp isomeric states in N=151 and N=153 isotopes. Systematics of experimental and theoretical single-particle states in N=153 isotones of 247Pu, 249Cm, 251Cf, 253Fm, 255No, 257Rf, 259Sg, 261Hs.
doi: 10.1103/PhysRevC.106.014602
2022HE04 Eur.Phys.J. A 58, 11 (2022) F.P.Hessberger, S.Antalic, F.Giacoppo, B.Andel, D.Ackermann, M.Block, S.Heinz, J.Khuyagbaatar, I.Kojouharov, M.Venhart Alpha-gamma decay studies of 247Md RADIOACTIVITY 247Md(IT), (α), (SF) [from 209Bi(40Ar, X)247Md, E=184-188 MeV]; measured decay products, Eα, Iα, Eγ, Iγ, α-γ-coin. 243Es;deduced γ- and α-particles energies and intensities, J, π, isomeric state T1/2. Comparison with Nilsson levels. GSI Darmstadt, Penning source of the UNILAC, the velocity filter SHIP.
doi: 10.1140/epja/s10050-022-00663-4
2022KH08 Phys.Rev. C 106, 024309 (2022) J.Khuyagbaatar, H.Brand, Ch.E.Dullmann, F.P.Hessberger, E.Jager, B.Kindler, J.Krier, N.Kurz, B.Lommel, Yu.Nechiporenko, Yu.N.Novikov, B.Schausten, A.Yakushev Search for fission from a long-lived isomer in 250No and evidence of a second isomer RADIOACTIVITY 250,250mNo(α), (SF)[from 204Pb(48Ca, 2n), E=218.9 MeV, followed by separation of fragments using TASCA system at GSI facility]; measured evaporation residues (ERs), (ER)α- and (ER)(fission events)-correlations, T1/2 of g.s. and two isomers using double-sided silicon strips detectors, and a multiwire proportional counter (MWPC). 250,250mNo; deduced T1/2, upper limit of fission (SF) branching of 23-μs isomer, new shorter-lived high-K isomer. Discussed nonobservation of fission branching of the long-lived isomer, and fission-hindrance factor due to K-quantum number with theoretical predictions from various semiempirical approaches.
doi: 10.1103/PhysRevC.106.024309
2022KH11 Eur.Phys.J. A 58, 243 (2022) Fission-stability of high-K states in superheavy nuclei RADIOACTIVITY 248Es(EC), 254Rf, 270Ds(α); calculated the electron-capture delayed fission (ECDF) process within the approximate parabolic barrier approach, various de-excitation modes of high-K states, T1/2.
doi: 10.1140/epja/s10050-022-00896-3
2021BA41 Phys.Lett. B 820, 136601 (2021) K.Banerjee, D.J.Hinde, M.Dasgupta, J.Sadhukhan, E.C.Simpson, D.Y.Jeung, C.Simenel, B.M.A.Swinton-Bland, E.Williams, L.T.Bezzina, I.P.Carter, K.J.Cook, H.M.Albers, Ch.E.Dullmann, J.Khuyagbaatar, B.Kindler, B.Lommel, C.Mokry, E.Prasad, J.Runke, N.Schunck, C.Sengupta, J.F.Smith, P.Thorle-Pospiech, N.Trautmann, K.Vo-Phuoc, J.Walshe, A.Yakushev Sensitive search for near-symmetric and super-asymmetric fusion-fission of the superheavy element Flerovium (Z=114) NUCLEAR REACTIONS 208Pb, 244Pu(48Ca, X), 232Th(54Cr, X)Fl, E not given; analyzed available data; deduced masses, σ(θ). Comparison with microscopic calculations of Helmholtz free energy surfaces (FES).
doi: 10.1016/j.physletb.2021.136601
2021KH03 Phys.Rev. C 103, 064303 (2021) J.Khuyagbaatar, H.Brand, R.A.Cantemir, Ch.E.Dullmann, M.Gotz, S.Gotz, F.P.Hessberger, E.Jager, B.Kindler, J.Krier, N.Kurz, B.Lommel, B.Schausten, A.Yakushev Isomeric states in 256Rf RADIOACTIVITY 256mRf(IT)[from 207,208Pb(50Ti, xn), E=237.5, 242.5 MeV at the Trans-Actinide Separator and Chemistry Apparatus (TASCA) at GSI and implanted in double-sided silicon strip detector (DSSD)]; measured evaporation residues (ER) and fission (ER-FI) and ER-conversion electrons-fission (ER-CE-FI) correlated events, half-lives of the two isomers from correlated decay curves by a triggerless method. 256Rf; deduced two isomeric activities a low-spin and a high-spin, population rates, two-quasiparticle configurations with K-quantum number assignments, third isomer in 256Rf in earlier literature not observed perhaps due to low statistics.
doi: 10.1103/PhysRevC.103.064303
2021KH07 Phys.Rev. C 104, L031303 (2021) J.Khuyagbaatar, H.Brand, R.A.Cantemir, Ch.E.Dullmann, F.P.Hessberger, E.Jager, B.Kindler, J.Krier, N.Kurz, B.Lommel, B.Schausten, A.Yakushev Spontaneous fission instability of the neutron-deficient No and Rf isotopes: The new isotope 249No RADIOACTIVITY 253,253mRf(SF); 253Rf, 249No(α)[253Rf from 204Pb(50Ti, n), E=234.3 MeV]; measured evaporation residues (ERs), (ER)(fission)- and (ER)α-correlated events, Eα, Iα, partial half-lives of two fission activities of 253Rf, α-decay half-life of newly discovered 249No isotope from the α decay mode of 253Rf in (ER)-α-α-α correlated events using gas-filled TransActinide Separator and Chemistry Apparatus (TASCA) at UNILAC, GSI. 253Rf; deduced another high-lying ≈0.6-μs isomer. 251mNo; discussed in Supplemental Material of the paper a possible identification method for direct fission from an isomeric state in 251No. Presence of two fission activities in 253Rf proposed as benchmark cases for the theoretical description of the influence of single-particle orbitals on the fission process.
doi: 10.1103/PhysRevC.104.L031303
2021SA01 Phys.Rev.Lett. 126, 032503 (2021) A.Samark-Roth, D.M.Cox, D.Rudolph, L.G.Sarmiento, B.G.Carlsson, J.L.Egido, P.Golubev, J.Heery, A.Yakushev, S.Aberg, H.M.Albers, M.Albertsson, M.Block, H.Brand, T.Calverley, R.Cantemir, R.M.Clark, C.E.Dullmann, J.Eberth, C.Fahlander, U.Forsberg, J.M.Gates, F.Giacoppo, M.Gotz, S.Gotz, R.-D.Herzberg, Y.Hrabar, E.Jager, D.Judson, J.Khuyagbaatar, B.Kindler, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, L.Lens, J.Ljungberg, B.Lommel, J.Louko, C.-C.Meyer, A.Mistry, C.Mokry, P.Papadakis, E.Parr, J.L.Pore, I.Ragnarsson, J.Runke, M.Schadel, H.Schaffner, B.Schausten, D.A.Shaughnessy, P.Thorle-Pospiech, N.Trautmann, J.Uusitalo Spectroscopy along Flerovium Decay Chains: Discovery of 280Ds and an Excited State in 282Cn RADIOACTIVITY 286,288Fl, 284Cn(α), 282Cn, 280Ds(SF) [from 242,244Pu(48Ca, X)286Fl/288Fl, E=6.021 MeV/nucleon]; measured decay products, Eα, Iα, Eβ, Iβ α-β coin.; deduced Q-values, T1/2, J, π. Comparison with theoretical calculations. The gas-filled separator TASCA at the GSI.
doi: 10.1103/PhysRevLett.126.032503
2021VI08 Phys.Rev. C 104, 054602 (2021) A.C.Visakh, E.Prasad, P.V.Laveen, M.Shareef, A.Shamlath, S.Nath, N.Madhavan, J.Gehlot, Gonika, R.Biswas, A.Parihari, J.Khuyagbaatar, B.Lommel, B.Kindler, A.M.Vinodkumar, B.R.S.Babu, S.Sanila, K.M.Varier, S.Appannababu Fusion studies in 16O + 142, 150Nd reactions at energies near the Coulomb barrier NUCLEAR REACTIONS 142Nd(16O, X), E=60-104 MeV; 150Nd(16O, X), E=56-104 MeV from the 15-UD Pelletron accelerator at IUAC-New Delhi; measured reaction products using the Heavy Ion Reaction Analyzer (HIRA), with electromagnetic configuration of Q1Q2-ED1-M-MD-ED2-Q3Q4 and two silicon surface barrier detectors (SSBDs), evaporation residues (ERs) using position sensitive multiwire proportional counter (MWPC), two-dimensional ΔE versus ToF spectra, σ(E) for ERs; deduced fusion σ(E). 148Nd(18O, X), 142,144,148Nd(16O, X), E-VB=-10-35 MeV analyzed previous and present experimental measurements for reduced fusion σ(E). Comparison with coupled channels calculations using CCFULL code, and with 1D-BPM predictions using Akyuz-Winther (AW) potential parameters.
doi: 10.1103/PhysRevC.104.054602
2020BA41 Phys.Rev. C 102, 024603 (2020) T.Banerjee, D.J.Hinde, D.Y.Jeung, K.Banerjee, M.Dasgupta, A.C.Berriman, L.T.Bezzina, H.M.Albers, Ch.E.Dullmann, J.Khuyagbaatar, B.Kindler, B.Lommel, E.C.Simpson, C.Sengupta, B.M.A.Swinton-Bland, T.Tanaka, A.Yakushev, K.Eberhardt, C.Mokry, J.Runke, P.Thorle-Pospiech, N.Trautmann Systematic evidence for quasifission in 9Be-, 12C-, and 16O-induced reactions forming 258, 260No NUCLEAR REACTIONS 238U(9Be, F)247Cm*, E=45-60 MeV; 244U(9Be, F)253Cf*, E=45-60 MeV; 248Cm(9Be, F)257Fm*, E=45-60 MeV; 249Cf(9Be, F)258No*, E=45-60 MeV; 248Cm(12C, F)260No*, E=60.80-89.18 MeV; 244Pu(16O, F)260No*, E=84.90-116.27 MeV; measured fission fragments, fission fragment mass and angular distributions using the CUBE spectrometer consisting of three multiwire proportional counters (MWPCs) at the Heavy Ion Accelerator Facility (HIAF) of the Australian National University; deduced reconstructed fission source velocity distributions, full momentum transfer (FMT) fission differential σ(θ, E), total and FMT fission σ(E), FMT mass-angle distributions (MADs), FMT fission angular anisotropies; analyzed mass-ratio (MR) spectra. 254,256,258,260,262No; deduced spontaneous fission mass-ratio distributions. Comparison with predictions from the transition state model (TSM) calculations for fusion fission reactions.
doi: 10.1103/PhysRevC.102.024603
2020BO24 Sci. Rep. 10, 17183 (2020) P.Boller, A.Zylstra, P.Neumayer, L.Bernstein, C.Brabetz, J.Despotopulos, J.Glorius, J.Hellmund, E.A.Henry, J.Hornung, J.Jeet, J.Khuyagbaatar, L.Lens, S.Roeder, T.Stoehlker, A.Yakushev, Y.A.Litvinov, D.Shaughnessy, V.Bagnoud, T.Kuehl, D.H.G.Schneider First on-line detection of radioactive fission isotopes produced by laser-accelerated protons NUCLEAR REACTIONS U(p, F)134I/136I/137Xe/138Xe/139Xe/140Cs, E=15-70 MeV; measured reaction products, Eγ, Iγ; deduced production σ, yields. Target Normal Sheath Acceleration, PHELIX laser. RADIOACTIVITY 134,136I(IT), 137,138,139Xe, 140Cs(β-); measured decay products, Eγ, Iγ; deduced γ-ray energies and relative intensities.
doi: 10.1038/s41598-020-74045-5
2020KA02 Phys.Rev. C 101, 011301 (2020) J.Kallunkathariyil, B.Sulignano, P.T.Greenlees, J.Khuyagbaatar, Ch.Theisen, K.Auranen, H.Badran, F.Bisso, P.Brionnet, R.Briselet, A.Drouart, Z.Favier, T.Goigoux, T.Grahn, K.Hauschild, A.Herzan, F.P.Hessberger, U.Jakobsson, R.Julin, S.Juutinen, J.Konki, M.Leino, A.Lightfoot, J.Pakarinen, P.Papadakis, J.Partanen, P.Peura, P.Rahkila, K.Rezynkina, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, M.Siciliano, J.Sorri, S.Stolze, A.I.Svirikhin, J.Uusitalo, M.Vandebrouck, A.Ward, C.Wraith, M.Zielinska Stability of the heaviest elements: K isomer in 250No NUCLEAR REACTIONS 204Pb(48Ca, 2n)250No, E=218.0 MeV; measured evaporation residues (ER), fission (SF) events, ER-electron-SF correlated events, γ(electron)-coin, half-lives of an isomer and the ground state using RITU separator and GREAT spectrometer at the University of Jyvaskyla accelerator facility. 250No; deduced level, isomer, decay modes of the isomer and the ground state. Systematics of energies of isomers in N=148 isomers 242Pu, 244Cm, 246Cf, 248Fm, 250No. Relevance to the island of stability of superheavy elements.
doi: 10.1103/PhysRevC.101.011301
2020KH01 Nucl.Phys. A994, 121662 (2020) J.Khuyagbaatar, A.K.Mistry, D.Ackermann, L.-L.Andersson, M.Block, H.Brand, Ch.E.Dullmann, J.Even, F.P.Hessberger, J.Hoffmann, A.Hubner, E.Jager, B.Kindler, J.Krier, N.Kurz, B.Lommel, B.Schausten, J.Steiner, A.Yakushev, V.Yakusheva The identification and confirmation of isomeric states in 254Rf and 255Rf through conversion electron detection NUCLEAR REACTIONS 206Pb(50Ti, 2n), (50Ti, n)254,255Rf, E=252.5, 236.0 MeV pulsed beam from the UNILAC-GSI facility; measured evaporation residues (ERs), decay products, conversion electrons, isomers, T1/2 from (ERs)(fission events)-correlated, and (ERs)(fission events)(electron)-correlated decay curves using the gas-filled separator TASCA with multi-wire proportional counter (MWPC) and double-sided silicon strip detectors(DSSDs). 254,255Rf; deduced T1/2 of the ground states and isomers, production σ. Comparison of measured σ with theoretical calculations using statistical fusion-evaporation code HIVAP.
doi: 10.1016/j.nuclphysa.2019.121662
2020KH07 Nucl.Phys. A1002, 121958 (2020) Spontaneous fission half-lives of the heaviest nuclei: Semi-empirical predictions RADIOACTIVITY 246,248,250,252,254,256,258,260,262,264,266,268Cf, 248,250,252,254,256,258,260,262,264,266,268,270Fm, 250,252,254,256,258,260,262,264,266,268,270No, 252,254,256,258,260,262,264,266,268,270,272,274,276,278,280,282,284,286,288Rf, 254,256,258,260,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290Sg, 254,256,258,260,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290,292Hs, 252,254,256,258,260,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290,292,294,296,298,300Ds, 254,256,258,260,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290,292,294,296,298,300,302Cn, 256,258,260,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290,292,294,296,298,300,302,304Fl, 284,286,288,290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,320,322Lv, 286,288,290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,320,322,324Og, 288,290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,320,322,324,326120(SF); calculated T1/2. Comparison with available data.
doi: 10.1016/j.nuclphysa.2020.121958
2020KH08 Phys.Rev.Lett. 125, 142504 (2020) J.Khuyagbaatar, H.M.Albers, M.Block, H.Brand, R.A.Cantemir, A.Di Nitto, C.E.Dullmann, M.Gotz, S.Gotz, F.P.Hessberger, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, B.Lommel, L.Lens, A.Mistry, B.Schausten, J.Uusitalo, and A.Yakushev Search for Electron-Capture Delayed Fission in the New Isotope 244Md RADIOACTIVITY 244,245Md(α), (EC) [from 197Au(50Ti, X), E=239.8, 231.5 MeV]; measured decay products, Eα, Iα; deduced α-particles energies, T1/2. Comparison with available data.
doi: 10.1103/PhysRevLett.125.142504
2020KH10 Phys.Rev. C 102, 044312 (2020) J.Khuyagbaatar, F.P.Hessberger, S.Hofmann, D.Ackermann, H.G.Burkhard, S.Heinz, B.Kindler, I.Kojouharov, B.Lommel, R.Mann, J.Maurer, K.Nishio α decay of 243Fm143 and 245Fm145, and of their daughter nuclei RADIOACTIVITY 245Fm(α)[from 208Pb(40Ar, 3n), E=192 MeV]; 243Fm(α)[from 206Pb(40Ar, 3n), E=185-204 MeV]; 241Cf(α)[from 245Fm α]; 239Cf(α)[from 243Fm α]; 235Cm(α)[from 241Cf α]; measured evaporation residues (ER), Eα, Iα, (ER)α-α-correlations for 243Fm decay chain, Eγ from 241Cf decay, half-lives of the decays of 243Fm, 239Cf and 235Cm, the 245Fm and 243Fm activities separated using the SHIP separator at the GSI facility, and implanted into a position sensitive 16-strip Si detector, with six additional silicon detectors as the stop detector. 245Fm(α), (EC), (SF); deduced branching ratios, with upper limits for ϵ and SF modes, HF for α. 243Fm(α), (EC), (SF); deduced branching ratios, with upper limit for ϵ mode, HF for α. 239,241Cf, 235Cm(α), (EC); deduced branching ratios, HF for α. 239,241Cf, 237Cm; deduced one tentative level each, J, π, total internal conversion coefficient and multipolarity of a γ ray in 237Cm, Nilsson configurations. 243,245Es, 246Fm(α); measured Eα.
doi: 10.1103/PhysRevC.102.044312
2020KH11 Phys.Rev. C 102, 064602 (2020) J.Khuyagbaatar, A.Yakushev, Ch.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Asai, M.Block, R.A.Boll, H.Brand, D.M.Cox, M.Dasgupta, X.Derkx, A.Di Nitto, K.Eberhardt, J.Even, M.Evers, C.Fahlander, U.Forsberg, J.M.Gates, N.Gharibyan, P.Golubev, K.E.Gregorich, J.H.Hamilton, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, M.Laatiaoui, S.Lahiri, R.Lang, B.Lommel, M.Maiti, K.Miernik, S.Minami, A.K.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, P.Papadakis, D.Renisch, J.B.Roberto, D.Rudolph, J.Runke, K.P.Rykaczewski, L.G.Sarmiento, M.Schadel, B.Schausten, A.Semchenkov, D.A.Shaughnessy, P.Steinegger, J.Steiner, E.E.Tereshatov, P.Thorle-Pospiech, K.Tinschert, T.Torres De Heidenreich, N.Trautmann, A.Turler, J.Uusitalo, M.Wegrzecki, N.Wiehl, S.M.Van Cleve, V.Yakusheva Search for elements 119 and 120 NUCLEAR REACTIONS 249Bk, 249Cf(50Ti, X)299119*/299120*, E(average)=281.5 MeV; measured evaporation residues (ERs), Eα, correlated ER-α and ER-α1-α2-SF events using UNILAC accelerator, TASCA separator, and Focal plane detector system (FPDS) consisting of double-sided silicon strip (DSSD) detectors, and Si-strip detectors for position and time correlations of events. 295,296119, 295,296120; deduced no evidence for non-random correlated events related to 3n- or 4n-channel deexcitations of the compound nuclei 299119 and 299120, within a sensitivity limit of one event corresponding to σ=65 fb for 249Bk+50Ti reaction and σ=200 fb for 249Cf+50Ti; discussed nonobservation of Z=119 and 120 superheavy elements within the context of the fusion-evaporation reaction mechanism.
doi: 10.1103/PhysRevC.102.064602
2019BA26 Phys.Rev.Lett. 122, 232503 (2019) K.Banerjee, D.J.Hinde, M.Dasgupta, E.C.Simpson, D.Y.Jeung, C.Simenel, B.M.A.Swinton-Bland, E.Williams, I.P.Carter, K.J.Cook, H.M.David, C.E.Dullmann, J.Khuyagbaatar, B.Kindler, B.Lommel, E.Prasad, C.Sengupta, J.F.Smith, K.Vo-Phuoc, J.Walshe, A.Yakushev Mechanisms Suppressing Superheavy Element Yields in Cold Fusion Reactions NUCLEAR REACTIONS 208Pb(50Ti, X), (48Ca, X), (54Cr, X), E not given; analyzed available data; deduced projectile impact on drastic fall in the symmetric fission yield, which is reflected in the measured mass-angle distribution by the presence of competing fast nonequilibrium deep inelastic and quasifission processes.
doi: 10.1103/PhysRevLett.122.232503
2019KH04 Phys.Rev. C 99, 054306 (2019) J.Khuyagbaatar, A.Yakushev, Ch.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Asai, M.Block, R.A.Boll, H.Brand, D.M.Cox, M.Dasgupta, X.Derkx, A.Di Nitto, K.Eberhardt, J.Even, M.Evers, C.Fahlander, U.Forsberg, J.M.Gates, N.Gharibyan, P.Golubev, K.E.Gregorich, J.H.Hamilton, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, M.Laatiaoui, S.Lahiri, R.Lang, B.Lommel, M.Maiti, K.Miernik, S.Minami, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, P.Papadakis, D.Renisch, J.Roberto, D.Rudolph, J.Runke, K.P.Rykaczewski, L.G.Sarmiento, M.Schadel, B.Schausten, A.Semchenkov, D.A.Shaughnessy, P.Steinegger, J.Steiner, E.E.Tereshatov, P.Thorle-Pospiech, K.Tinschert, T.Torres De Heidenreich, N.Trautmann, A.Turler, J.Uusitalo, D.E.Ward, M.Wegrzecki, N.Wiehl, S.M.Van Cleve, V.Yakusheva Fusion reaction 48Ca + 249Bk leading to formation of the element Ts (Z=117) NUCLEAR REACTIONS 249Bk(48Ca, 3n), (48Ca, 4n)293Ts/294Ts, E=252.1, 254.0, 258.0 MeV; measured reaction products, evaporation residues (ER), Eα, Iα, (ER)α-correlated decay chains, and σ using double-sided silicon strip detectors for α detection, TASCA separator for evaporation residue, and multiwire proportional counter for detection of residues at UNILAC accelerator facility of GSI. Comparison with previous experimental data for (ER)α-correlated decay chains from DGFRS-Dubna facility. RADIOACTIVITY 294Ts, 290Mc, 286Nh, 282Rg, 278Mt, 274Bh, 270Db(α); 293Ts, 289Mc, 285Nh, 281Rg(α); 266Lr, 270Db, 277Mt, 277Hs(SF); measured Eα, Iα, SF events, half-lives. 266Lr, 270Db(α), (SF); measured half-lives and α/SF branching ratios. Comparison with previous experimental data for (ER)α-correlated decay chains from DGFRS-Dubna facility. A=200-240; A=240-260; systematics of α-decay half-lives of isotopes produced in 48Ca+249Bk and 48Ca+249Cf reactions.
doi: 10.1103/PhysRevC.99.054306
2019KH08 Eur.Phys.J. A 55, 134 (2019) β(EC) delayed fission in the heaviest nuclei
doi: 10.1140/epja/i2019-12824-1
2019MI08 Nucl.Phys. A987, 337 (2019) A.K.Mistry, J.Khuyagbaatar, F.P.Hessberger, D.Ackermann, B.Andel, S.Antalic, M.Block, P.Chhetri, F.Dechery, C.Droese, Ch.E.Dullmann, F.Giacoppo, J.Hoffmann, O.Kaleja, N.Kurz, M.Laatiaoui, L.Lens, J.Maurer, P.Mosat, J.Piot, S.Raeder, M.Vostinar, A.Yakushev, Z.Zhang The 48Ca+181Ta reaction: Cross section studies and investigation of neutron-deficient 86 ≤ Z ≤ 93 isotopes NUCLEAR REACTIONS 181Ta(48Ca, x)229Np, E(cm)=212, 217, 226 MeV[energies based on σ predictions by the HIVAP code]; measured xn, αxn, pxn leading to 225Np, 225U, 224Np, Evaporation Residues (ER) separated from 48Ca primary beam using the SHIP velocity filter at GSI, ToF and COMPAct Spectroscopy Set-up (COMPASS) comprising of DSSDs and SSSDs; deduced 225U, 225,226,229Np decay chains; 213Rn, 213,214,215Fr, 217,218,219Ac, 221Th, 221,222,223Pa, 225U, 225,226Np; deduced decay data, T1/2; compared with literature values; compiled production σ maxima in 3n and 4n evaporation channels from compound nuclei with Z=83-94 and projectiles 40Ar, 40,44,48Ca, 50Ti using published experimental data.
doi: 10.1016/j.nuclphysa.2019.05.003
2018AC08 Nucl.Instrum.Methods Phys.Res. A907, 81 (2018) D.Ackermann, A.K.Mistry, F.P.Hessberger, B.Andel, S.Antalic, M.Block, L.Caceres, P.Chhetri, F.Dechery, Ch.Droese, Ch.E.Dullmann, F.Giacoppo, J.Hoffmann, O.Kaleja, O.Kamalou, N.Kurz, J.Khuyagbaatar, R.R.Mandl, T.Murbock, M.Laatiaoui, J.Maurer, P.Mosat, J.Piot, S.Raeder, H.Savajols, O.Sorlin, Ch.Stodel, J.C.Thomas, M.Vostinar, P.Wieczorek, A.Yakushev, Z.Zhang COMPASS-A COMPAct decay spectroscopy set-up RADIOACTIVITY 253No(α) [from 207Pb(48Ca, 2n), E not given]; measured decay products, Eγ, Iγ, Eα, Iα, α-γ-coin.; deduced α-decay spectrum, branching ratios.
doi: 10.1016/j.nima.2018.01.096
2018DI11 Phys.Lett. B 784, 199 (2018) A.Di Nitto, J.Khuyagbaatar, D.Ackermann, L.-L.Andersson, E.Badura, M.Block, H.Brand, I.Conrad, D.M.Cox, Ch.E.Dullmann, J.Dvorak, K.Eberhardt, P.A.Ellison, N.E.Esker, J.Even, C.Fahlander, U.Forsberg, J.M.Gates, P.Golubev, O.Gothe, K.E.Gregorich, W.Hartmann, R.D.Herzberg, F.P.Hessberger, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, S.Klein, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, S.Lahiri, B.Lommel, M.Maiti, R.Mandl, E.Merchan, S.Minami, A.K.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, D.Renisch, D.Rudolph, J.Runke, L.G.Sarmiento, M.Schadel, H.Schaffner, B.Schausten, A.Semchenkov, J.Steiner, P.Thorle-Pospiech, N.Trautmann, A.Turler, J.Uusitalo, D.Ward, M.Wegrzecki, P.Wieczorek, N.Wiehl, A.Yakushev, V.Yakusheva Study of non-fusion products in the 50Ti + 249Cf reaction NUCLEAR REACTIONS 249Cf(50Ti, X)211Po/212At/213Rn/214Fr/215Ra/222Ra/221Ra/223Ac/218Rn/224Th/219Fr/223Th/218Rn/219Fr/220Ra/214Po/219Ra/217Rn/215At, E=306 MeV; measured reaction products, Eα, Iα; deduced σ.
doi: 10.1016/j.physletb.2018.07.058
2018KH05 Phys.Rev. C 97, 064618 (2018) J.Khuyagbaatar, H.M.David, D.J.Hinde, I.P.Carter, K.J.Cook, M.Dasgupta, Ch.E.Dullmann, D.Y.Jeung, B.Kindler, B.Lommel, D.H.Luong, E.Prasad, D.C.Rafferty, C.Sengupta, C.Simenel, E.C.Simpson, J.F.Smith, K.Vo-Phuoc, J.Walshe, A.Wakhle, E.Williams, A.Yakushev Nuclear structure dependence of fusion hindrance in heavy element synthesis NUCLEAR REACTIONS 204,208Pb(48Ti, X), E=240.0, 245.0, 252.2, 259.0, 270.0, 280.0 MeV; 206,208Pb(50Ti, X), E=236.0, 240.0, 252.0, 258.0, 264.0, 270.0, 280.2 MeV; measured reaction products, mass ratio and angular distributions (MAD) of fragments, double differential σ(θ, MR), and widths using CUBE detector array at the Heavy Ion Accelerator Facility of Australian National University. 206Pb(36S, X), (34S, X), (48Ti, X), (50Ti, X), E*=25-60 MeV; calculated mean-squared angular momenta, widths and MR distributions, and compared with experimental data. Discussed impact of nuclear structure on fusion-evaporation reactions.
doi: 10.1103/PhysRevC.97.064618
2018KO05 Phys.Rev. C 97, 024306 (2018) J.Konki, B.Sulignano, P.T.Greenlees, Ch.Theisen, K.Auranen, H.Badran, R.Briselet, D.M.Cox, F.Defranchi Bisso, J.Dobaczewski, T.Grahn, A.Herzan, R.-D.Herzberg, R.Julin, S.Juutinen, J.Khuyagbaatar, M.Leino, A.Lightfoot, J.Pakarinen, P.Papadakis, J.Partanen, P.Rahkila, M.Sandzelius, J.Saren, C.Scholey, Y.Shi, M.Smolen, J.Sorri, S.Stolze, J.Uusitalo In-beam spectroscopic study of 244Cf NUCLEAR REACTIONS 198Pt(48Ca, 2n), (48Ca, 3n), E=207, 208, 211, 213 MeV; measured evaporation residues and σ for 2n and 3n channels by TOF and ΔE, excitation functions, Eγ, Iγ, γγ-coin, Eα, Iα, recoil-α, and recoil-α-γ correlated events, using RITU separator, GREAT spectrometer, JUROGAM-II array of 24 clover-type and 15 either Phase-I- or GASP-type Compton-suppressed Ge detectors at the K=130 MeV cyclotron facility of University of Jyvaskyla. Recoil-decay tagging method. 244Cf; deduced high-spin levels, J, π, yrast rotational band up to (20+), moment of inertia plots, Harris expansion used to deduce energies of the first 2+ and 4+ states. Comparison with available calculations. Systematics of yrast levels and moment of inertia in 238U, 240Pu, 242Cm, 244Cf and 246Fm. RADIOACTIVITY 243,244Cf(α)[from 198Pt(48Ca, 2n), (48Ca, 3n), E=207, 208, 211, 213 MeV]; measured Eα, Iα, (recoil)α-coin, half-lives of ground states of 243Cf and 244Cf; deduced branching ratio for α-decay mode of 244Cf. Comparison with earlier experimental values.
doi: 10.1103/PhysRevC.97.024306
2018MI11 Acta Phys.Pol. B49, 613 (2018) A.K.Mistry, Z.Zhang, F.P.Hessberger, D.Ackermann, B.Andel, S.Antalic, M.Block, P.Chhetri, F.Dechery, C.Droese, Ch.E.Dullmann, F.Giacoppo, J.Hoffmann, O.Kaleja, J.Khuyagbaatar, N.Kurz, M.Laatiaoui, J.Maurer, P.Mosat, J.Piot, S.Raeder, M.Vostinar, A.Yakushev Decay Spectroscopy of Heavy Isotopes at SHIP Using the COMPASS Focal Plane Detection Set-up RADIOACTIVITY 250Fm, 254No(α)[Nobelium from 48Ca(208Pb, 2n), E=4.55 MeV/nucleon]; measured Eα, Iα(time), αα-coin; deduced α-decay energy spectrum, Iα vs time, T1/2, αFmαNo correlation, T1/2. 222Th, 218Ra, 214Rn(α)[from α-decays 230Pu to 226U to 232Th to218Ra to 214Rn]; measured α-decay trace 222Th to 218Ra to n, Eα, Iα(time), αα-coin, αα-correlations; deduced summary of α-decay chains starting with 227U, 229Np, 229,230Pu using also literature references.
doi: 10.5506/aphyspolb.49.613
2018RA11 Phys.Rev.Lett. 120, 232503 (2018) S.Raeder, D.Ackermann, H.Backe, R.Beerwerth, J.C.Berengut, M.Block, A.Borschevsky, B.Cheal, P.Chhetri, Ch.E.Dullmann, V.A.Dzuba, E.Eliav, J.Even, R.Ferrer, V.V.Flambaum, S.Fritzsche, F.Giacoppo, S.Gotz, F.P.Hessberger, M.Huyse, U.Kaldor, O.Kaleja, J.Khuyagbaatar, P.Kunz, M.Laatiaoui, F.Lautenschlager, W.Lauth, A.K.Mistry, E.Minaya Ramirez, W.Nazarewicz, S.G.Porsev, M.S.Safronova, U.I.Safronova, B.Schuetrumpf, P.Van Duppen, T.Walther, C.Wraith, A.Yakushev Probing Sizes and Shapes of Nobelium Isotopes by Laser Spectroscopy NUCLEAR MOMENTS 252,253,254No; measured excitation spectra, hyperfine structure components; deduced nuclear magnetic and quadrupole moments, charge radii. Comparison with the state-of-the-art nuclear density functional calculations.
doi: 10.1103/PhysRevLett.120.232503
2018SA45 Phys.Rev. C 98, 044307 (2018) A.Saamark-Roth, L.G.Sarmiento, D.Rudolph, J.Ljungberg, B.G.Carlsson, C.Fahlander, U.Forsberg, P.Golubev, I.Ragnarsson, D.Ackermann, L.-L.Andersson, M.Block, H.Brand, D.M.Cox, A.Di Nitto, Ch.E.Dullmann, K.Eberhardt, J.Even, J.M.Gates, J.Gerl, K.E.Gregorich, C.J.Gross, R.-D.Herzberg, F.P.Hessberger, E.Jager, J.Khuyagbaatar, B.Kindler, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, B.Lommel, A.Mistry, C.Mokry, J.P.Omtvedt, P.Papadakis, J.Runke, K.Rykaczewski, M.Schadel, H.Schaffner, B.Schausten, P.Thorle-Pospiech, N.Trautmann, T.Torres, A.Turler, A.Ward, N.Wiehl, A.Yakushev Low-lying states in 219Ra and 215Rn: Sampling microsecond α-decaying nuclei RADIOACTIVITY 219Ra(α)[from 243Am(48Ca, X), E=242.1, 245.0 MeV]; measured Eα, Iα, Eγ, Iγ, αγ-coin, α(x ray)-coin, α-α correlations using TASISpec at the TASCA, GSI facility. Pileup analysis and GEANT4 simulation of 219Ra to 215Rn decay. 219,219m,220,221Ra, 215,216,217Rn, 212,213Po, 219Fr, 215At(α); measured half-lives, Qα. 219Ra, 215Rn; deduced levels, J, π, isomer in 219Ra Comparison with shell model calculations and theoretical calculations of deformation, rotational states and α-decay rates, and with evaluated data in the ENSDF database.
doi: 10.1103/PhysRevC.98.044307
2017GI07 Acta Phys.Pol. B48, 423 (2017) F.Giacoppo, K.Blaum, M.Block, P.Chhetri, Ch.E.Dullmann, C.Droese, S.Eliseev, P.Filianin, S.Gotz, Y.Gusev, F.Herfurth, F.P.Hessberger, O.Kaleja, J.Khuyagbaatar, M.Laatiaoui, F.Lautenschlager, C.Lorenz, G.Marx, E.Minaya Ramirez, A.Mistry, Yu.N.Novikov, W.R.Plass, S.Raeder, D.Rodriguez, D.Rudolph, L.G.Sarmiento, C.Scheidenberger, L.Schweikhard, P.Thirolf, A.Yakushev Recent Upgrades of the SHIPTRAP Setup: On the Finish Line Towards Direct Mass Spectroscopy of Superheavy Elements
doi: 10.5506/APhysPolB.48.423
2017GO06 Nucl.Phys. A961, 1 (2017) M.Gotz, S.Gotz, J.V.Kratz, Ch.E.Dullmann, Ch.Mokry, J.Runke, P.Thorle-Pospiech, N.Wiehl, M.Schadel, J.Ballof, H.Dorrer, J.Grund, D.Huber, E.Jager, O.Keller, J.Krier, J.Khuyagbaatar, L.Lens, B.Lommel, M.Mendel, K.J.Moody, P.Scharrer, B.Schausten, D.Shaughnessy, M.Schmitt, J.Steiner, N.Trautmann, A.Yakushev, V.Yakusheva Radiochemical study of the kinematics of multi-nucleon transfer reactions in 48Ca + 248Cm collisions 10 percent above the Coulomb barrier NUCLEAR REACTIONS 248Cm(48Ca, x), E=262 MeV; measured multinucleon transfer reaction products, Eα, Iα (for identification of the fragments); deduced TKE vs θ, E* vs θ for target-like (trans-target ones, like Fm, Es, Cf, Bk and others) fragments using radiochemical methods.
doi: 10.1016/j.nuclphysa.2017.02.006
2017KO02 Phys.Lett. B 764, 265 (2017) J.Konki, J.Khuyagbaatar, J.Uusitalo, P.T.Greenlees, K.Auranen, H.Badran, M.Block, R.Briselet, D.M.Cox, M.Dasgupta, A.Di Nitto, Ch.E.Dullmann, T.Grahn, K.Hauschild, A.Herzan, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, R.Julin, S.Juutinen, E.Jager, B.Kindler, J.Krier, M.Leino, B.Lommel, A.Lopez-Martens, D.H.Luong, M.Mallaburn, K.Nishio, J.Pakarinen, P.Papadakis, J.Partanen, P.Peura, P.Rahkila, K.Rezynkina, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, B.Sulignano, Ch.Theisen, A.Ward, A.Yakushev, V.Yakusheva Towards saturation of the electron-capture delayed fission probability: The new isotopes 240Es and 236Bk RADIOACTIVITY 240Es(EC), (α), 236Bk(EC) [from 209Bi(34S, 3n)240Es, E=174, 178 MeV]; measured decay products, Eα, Iα; deduced T1/2, branching ratios, electron-capture delayed fission (ECDF) probability. Comparison with available data.
doi: 10.1016/j.physletb.2016.11.038
2017LO13 Phys.Rev. C 96, 034315 (2017) Ch.Lorenz, L.G.Sarmiento, D.Rudolph, D.E.Ward, M.Block, F.P.Hessberger, D.Ackermann, L.-L.Andersson, M.L.Cortes, C.Droese, M.Dworschak, M.Eibach, U.Forsberg, P.Golubev, R.Hoischen, I.Kojouharov, J.Khuyagbaatar, D.Nesterenko, I.Ragnarsson, H.Schaffner, L.Schweikhard, S.Stolze, J.Wenzl Quantum-state-selective decay spectroscopy of 213Ra RADIOACTIVITY 213Ra(α), (EC), (β+)[from 170Er(48Ca, 5n), E=4.30 MeV/nucleon using velocity filter SHIP and SHIPTRAP Penning trap at GSI UNILAC facility]; 209Rn(α), (EC), (β+)[from 213Ra α decay]; 213Fr(α), (EC), (β+)[from 213Ra EC decay]; 209At(α), (EC), (β+)[from 209Rn EC decay]; measured Eα, Iα, Eγ, Iγ, αγ-coin, (x ray)α-coin, α and EC+β+ branching ratios using TASISpec setup at GSI. GEANT4 simulations. 209Rn; deduced levels, α feedings, γ-ray branching ratios, multipolarity. Comparison with evaluated data, and Nilsson-Strutinsky and shell-model calculations. 209Rn; calculated levels, J, π using shell model with pbpop interaction, total energy surface in (ϵ2, ϵ4) plane, and compared with experimental data, and other theoretical calculations.
doi: 10.1103/PhysRevC.96.034315
2016FO10 Nucl.Phys. A953, 117 (2016) U.Forsberg, D.Rudolph, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, C.Fahlander, J.M.Gates, P.Golubev, K.E.Gregorich, C.J.Gross, R.-D.Herzberg, F.P.Hessberger, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, L.G.Sarmiento, M.Schadel, A.Yakushev, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, J.Dobaczewski, K.Eberhardt, J.Even, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, W.Nazarewicz, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, Y.Shi, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl Recoil-α-fission and recoil-α-α- fission events observed in the reaction 48Ca + 243Am NUCLEAR REACTIONS 243Am(48Ca, x), E=242.1, 245.0 MeV; measured reaction products, fission products, Eα, Iα(t), αα-coin, (recoil)α-coin, En, In using He-gas filled TASCA, TASISpec based on DSSSDs, other DSSSDs; deduced correlation times, α energy spectra, 23 α-decay chains of five α's and α+3n, fragments T1/2. Discussed existence of long decay chains; compared with published results. RADIOACTIVITY 289,288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α), 268Db(SF); measured decay products, Eα, Iα; deduced T1/2. Comparison with available data.
doi: 10.1016/j.nuclphysa.2016.04.025
2016LA25 Nature(London) 535, 495 (2016) M.Laatiaoui, W.Lauth, H.Backe, Mi.Block, D.Ackermann, B.Cheal, P.Chhetri, C.E.Dullmann, P.van Duppen, J.Even, R.Ferrer, F.Giacoppo, S.Gotz, F.P.Hessberger, M.Huyse, O.Kaleja, J.Khuyagbaatar, P.Kunz, F.Lautenschlager, A.K.Mistry, S.Raeder, E.Minaya Ramirez, T.Walther, C.Wraith, A.Yakushev Atom-at-a-time laser resonance ionization spectroscopy of nobelium NUCLEAR REACTIONS 206,208Pb(48Ca, 2n), E=217 MeV; measured reaction products; deduced σ, ground-state transition, an upper limit for the ionization potential of nobelium.
doi: 10.1038/nature19345
2015AN05 Eur.Phys.J. A 51, 41 (2015) S.Antalic, F.P.Hessberger, D.Ackermann, S.Heinz, S.Hofmann, B.Kindler, J.Khuyagbaatar, B.Lommel, R.Mann Nuclear isomers in 259Sg and 255Rf NUCLEAR REACTIONS 206Pb(54Cr, n), E=257-270 MeV; measured evaporation residues using PSSD strips, Eα, Iα, Eγ, Iγ, αγ-coin using Ge. RADIOACTIVITY 259Sg(α), (EC), (β+); measured Eα, Iα(t), αα correlations, α(ER) correlations, time α-decay curves; deduced branching ratios, T1/2. 255Rf, 259Sg; deduced isomeric state, T1/2. 255Rf, 259Sg(SF), (α), (β+); measured α decay using PSSD, distribution of correlation times, fission spectra; deduced hindrance factor, single-particle level, J, π systematics, decay scheme for α decay of 259Sg. 255Rf deduced branching ratios.
doi: 10.1140/epja/i2015-15041-0
2015DE22 Phys.Lett. B 748, 199 (2015) H.M.Devaraja, S.Heinz, O.Beliuskina, V.Comas, S.Hofmann, C.Hornung, G.Munzenberg, K.Nishio, D.Ackermann, Y.K.Gambhir, M.Gupta, R.A.Henderson, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, B.Lommel, K.J.Moody, J.Maurer, R.Mann, A.G.Popeko, D.A.Shaughnessy, M.A.Stoyer, A.V.Yeremin Observation of new neutron-deficient isotopes with Z≥92 in multinucleon transfer reactions NUCLEAR REACTIONS 248Cm(48Ca, X)216U/212Th/208Fr/219Np/223Am/215Pa/211Ac/207Fr/229Am/225Np/213Fr/233Bk/225Np, E=270 MeV; measured reaction fragments, Eα, Iα; deduced five new isotopes σ, T1/2. Comparison with available data.
doi: 10.1016/j.physletb.2015.07.006
2015GA24 Phys.Rev. C 92, 021301 (2015) J.M.Gates, K.E.Gregorich, O.R.Gothe, E.C.Uribe, G.K.Pang, D.L.Bleuel, M.Block, R.M.Clark, C.M.Campbell, H.L.Crawford, M.Cromaz, A.Di Nitto, Ch.E.Dullmann, N.E.Esker, C.Fahlander, P.Fallon, R.M.Farjadi, U.Forsberg, J.Khuyagbaatar, W.Loveland, A.O.Macchiavelli, E.M.May, P.R.Mudder, D.T.Olive, A.C.Rice, J.Rissanen, D.Rudolph, L.G.Sarmiento, J.A.Shusterman, M.A.Stoyer, A.Wiens, A.Yakushev, H.Nitsche Decay spectroscopy of element 115 daughters: 280Rg → 276Mt and 276Mt → 272Bh NUCLEAR REACTIONS 243Am(48Ca, 3n)288Mc, E=262 MeV; measured evaporation residues (EVRs) by magnetic rigidities, Eα, SF-like events, decay chains using corner-cube-clover (C3) focal plane detector consisting of silicon-strip detectors surrounded by HPGe clover-type detectors, and DSSSDs for α particles at LBNL cyclotron facility; deduced data for forty-six decay chains from the decay of 288Mc and its α daughter products 284Nh, 280Rg, 276Mt, 272Bh, 268Db, the 268Db decaying by SF events. RADIOACTIVITY 276Mt, 280Rg(α)[from α decay chain of 288Mc formed in 243Am(48Ca, 3n), E=262 MeV at LBNL cyclotron facility]; measured Eα, Iα, Eγ, Iγ, E(x rays), αγ-, α(x ray)-, γγ-coin, half-lives of 276Mt and 280Rg isotopes. 272Bh, 276Mt; deduced levels, multipolarities, α hindrance factors. GEANT4 simulations of α and photon spectra. No K-x rays were definitely assigned thus uncertain Z identification.
doi: 10.1103/PhysRevC.92.021301
2015KH03 Phys.Rev. C 91, 054608 (2015) J.Khuyagbaatar, D.J.Hinde, I.P.Carter, M.Dasgupta, Ch.E.Dullmann, M.Evers, D.H.Luong, R.du Rietz, A.Wakhle, E.Williams, A.Yakushev Experimental study of the quasifission, fusion-fission, and de-excitation of Cf compound nuclei NUCLEAR REACTIONS 206Pb(36S, X)242Cf*, 208Pb(34S, X)242Cf*, 198Pt(44Ca, X)242Cf*, 208Pb(36S, X)244Cf*, 235U(12C, X)247Cf*, at E*=28-52 MeV; measured fission fragment spectra, (fragment)(fragment)-coin, mass and angle distributions of fission fragments at Heavy Ion Accelerator Facility of the Australian National University; deduced mean squared angular momenta, (σRMS/σgaus), mass distribution of fission fragments of 244Cf* and 242Cf* following electron capture decay of 244Es and 242Es; deduced fractions of the mass asymmetric fission components, survival probabilities, shell effects in slow quasifission mass distributions. Coupled-channel calculations using CCFULL computer code. Comparison with calculations using general fission model computer code GEF.
doi: 10.1103/PhysRevC.91.054608
2015KH09 Phys.Rev.Lett. 115, 242502 (2015) J.Khuyagbaatar, A.Yakushev, Ch.E.Dullmann, D.Ackermann, L.L-.Andersson, M.Block, H.Brand, D.M.Cox, J.Even, U.Forsberg, P.Golubev, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, J.Hoffmann, A.Hubner, E.Jager, J.Jeppsson, b.Kindler, J.V.Kratz, J.Krier, N.Kurz, B.Lommel, M.Maiti, S.Minami, A.K.Mistry, C.M.Mrosek, I.Pysmenetska, D.Rudolph, L.G.Sarmiento, H.Schaffner, M.Schadel, B.Schausten, J.Steiner, T.Torres De Heidenreich, J.Uusitalo, M.Wegrzecki, N.Wiehl, V.Yakusheva New Short-Lived Isotope 221U and the Mass Surface Near N = 126 RADIOACTIVITY 221,222U, 218Ac(α) [from 176Yb(50Ti, X)221U/222U, E=231-255 MeV]; measured decay products, Eα, Iα. 214,215Ra, 217,218,219Th, 214Fr, 221,222U; deduced T1/2, Q-values. A fast data readout technique, comparison with FRDM95 and HFB26 calculations.
doi: 10.1103/PhysRevLett.115.242502
2015NI09 Phys.Lett. B 748, 89 (2015) K.Nishio, A.N.Andreyev, R.Chapman, X.Derkx, Ch.E.Dullmann, L.Ghys, F.P.Hessberger, K.Hirose, H.Ikezoe, J.Khuyagbaatar, B.Kindler, B.Lommel, H.Makii, I.Nishinaka, T.Ohtsuki, S.D.Pain, R.Sagaidak, I.Tsekhanovich, M.Venhart, Y.Wakabayashi, S.Yan Excitation energy dependence of fragment-mass distributions from fission of 180, 190Hg formed in fusion reactions of 36Ar + 144, 154Sm NUCLEAR REACTIONS 144,154Sm(36Ar, X)180Hg/190Hg, E=148-198 MeV; measured reaction products; deduced fission fragment mass and total kinetic-energy distributions. Comparison with available data.
doi: 10.1016/j.physletb.2015.06.068
2015PR07 Phys.Rev. C 91, 064605 (2015) E.Prasad, D.J.Hinde, K.Ramachandran, E.Williams, M.Dasgupta, I.P.Carter, K.J.Cook, D.Y.Jeung, D.H.Luong, S.McNeil, C.S.Palshetkar, D.C.Rafferty, C.Simenel, A.Wakhle, J.Khuyagbaatar, Ch.E.Dullmann, B.Lommel, B.Kindler Observation of mass-asymmetric fission of mercury nuclei in heavy ion fusion NUCLEAR REACTIONS 142Nd(40Ca, X)182Hg*, E=167.7, 194.9, 199.9, 210.0, 221.1 MeV; 182W(13C, X)195Hg*, E=60.0, 63.0, 66.0 MeV; measured fission fragments mass rations and mass-angle distributions using the CUBE spectrometer at 14UD Pelletron facility of ANU-Canberra; deduced mass-asymmetric fission of 182Hg compound nucleus at E*=33.6 MeV, and mass-symmetric fission of 195Hg compound nucleus at all energies.Kinematic reconstruction method. Comparison with results from mass-asymmetric fission of 180Hg in beta-delayed fission process, and with theoretical predictions.
doi: 10.1103/PhysRevC.91.064605
2015RU11 J.Radioanal.Nucl.Chem. 303, 1185 (2015) D.Rudolph, U.Forsberg, P.Golubev, L.G.Sarmiento, A.Yakushev, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, J.M.Gates, K.E.Gregorich, C.J.Gross, R.-D.Herzberg, F.P.Hessberger, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, M.Schadel, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, K.Eberhardt, J.Even, C.Fahlander, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl Selected spectroscopic results on element 115 decay chains RADIOACTIVITY 288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α), 268Db(SF); measured decay products, Eα, Iα; deduced Q-values, level energies, branching ratios. Comparison with GEANT4 Monte-Carlo simulations.
doi: 10.1007/s10967-014-3445-y
2014AN10 Phys.Rev. C 90, 044312 (2014) A.N.Andreyev, S.Antalic, D.Ackermann, T.E.Cocolios, J.Elseviers, S.Franchoo, S.Heinz, F.P.Hessberger, S.Hofmann, M.Huyse, J.Khuyagbaatar, B.Kindler, B.Lommel, R.Mann, R.D.Page, P.Van Duppen, M.Venhart α decay of 176Au RADIOACTIVITY 176Au(α)[from 141Pr(40Ca, 5n), E=208, 212 MeV using UNILAC and SHIP at GSI]; 172Ir(α)[from 176Au α parent]; measured Eα, Iα, Eγ, Iγ, αγ-, αα-coin; deduced branching ratios, hindrance factors, reduced α-decay widths, Q-values, GEANT simulations, new α decay branch for decay of high spin isomer of 172Ir. 172Ir, 168Re; deduced levels, isomers, J, π, multipolarity, configuration. 180Tl(α); discussed α decay results of experiment at ISOLDE-CERN facility. 168Re, 172Ir, 176Au; discussed general systematics of multiplet states, and calculated Nilsson orbitals for neutrons and protons for 172Ir and 176Au. Comparison with previous experimental results. 175Pt, 177Au(α); observed α.
doi: 10.1103/PhysRevC.90.044312
2014KH04 Phys.Rev.Lett. 112, 172501 (2014) J.Khuyagbaatar, A.Yakushev, C.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Asai, M.Block, R.A.Boll, H.Brand, D.M.Cox, M.Dasgupta, X.Derkx, A.Di Nitto, K.Eberhardt, J.Even, M.Evers, C.Fahlander, U.Forsberg, J.M.Gates, N.Gharibyan, P.Golubev, K.E.Gregorich, J.H.Hamilton, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, M.Laatiaoui, S.Lahiri, R.Lang, B.Lommel, M.Maiti, K.Miernik, S.Minami, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, P.Papadakis, D.Renisch, J.Roberto, D.Rudolph, J.Runke, K.P.Rykaczewski, L.G.Sarmiento, M.Schadel, B.Schausten, A.Semchenkov, D.A.Shaughnessy, P.Steinegger, J.Steiner, E.E.Tereshatov, P.Thorle-Pospiech, K.Tinschert, T.Torres De Heidenreich, N.Trautmann, A.Turler, J.Uusitalo, D.E.Ward, M.Wegrzecki, N.Wiehl, S.M.Van Cleve, V.Yakusheva 48Ca + 249Bk Fusion Reaction Leading to Element Z=117: Long-Lived α-Decaying 270Db and Discovery of 266Lr NUCLEAR REACTIONS 249Bk(48Ca, X)294Ts, E=268.3, 270.2, 274.1 MeV; measured reaction products, Eα, Iα; deduced σ. Comparison with experimental data. RADIOACTIVITY 294Ts, 290Mc, 286Nh, 282Rg, 278Mt, 274Bh, 270Db, 266Lr(α); measured decay products, Eα, Iα; deduced T1/2. Comparison with experimental data.
doi: 10.1103/PhysRevLett.112.172501
2014NI16 Nucl.Data Sheets 119, 299 (2014) K.Nishio, H.Ikezoe, S.Hofmann, D.Ackermann, Y.Aritomo, V.F.Comas, Ch.E.Dullmann, S.Heinz, J.A.Heredia, F.P.Hessberger, K.Hirose, J.Khuyagbaatar, B.Kindler, I.Kojouharov, B.Lommel, M.Makii, R.Mann, S.Mitsuoka, I.Nishinaka, T.Ohtsuki, S.Saro, M.Schadel, A.G.Popeko, A.Turler, Y.Wakabayashi, Y.Watanabe, A.Yakushev, A.Yeremin Study of Heavy-ion Induced Fission for Heavy Element Synthesis NUCLEAR REACTIONS 238U(30Si, F), (34S, F), E*=30-68 MeV;238U(36S, F), E(cm)=140-180 MeV; measured reaction products; calculated σ; deduced σ. 238U(30Si, xn), E(cm)=125-160 MeV;238U(34S, xn), E(cm)=140-180 MeV; measured reaction products; deduced σ; calculated σ.
doi: 10.1016/j.nds.2014.08.082
2014RU04 Acta Phys.Pol. B45, 263 (2014) D.Rudolph, U.Forsberg, P.Golubev, L.G.Sarmiento, A.Yakushev, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, J.M.Gates, K.E.Gregorich, C.J.Gross, R.-D.Herzberg, F.P.Hessberger, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, M.Schadel, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, K.Eberhardt, J.Even, C.Fahlander, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl Alpha-Photon Coincidence Spectroscopy Along Element 115 Decay Chains RADIOACTIVITY 287,288Mc, 283,284Nh, 279,280Rg, 275,276Mt, 271,272Bh(α), 267,268Db(SF) [from 243Am(48Ca, X), E not given]; measured decay products, Eα, Iα, Eγ, Iγ, X-rays; deduced T1/2, correlated α-decay chains. Comparison with available data.
doi: 10.5506/APhysPolB.45.263
2014YA33 Inorg. Chem. 53, 1624 (2014) A.Yakushev, J.M.Gates, A.Turler, M.Schadel, C.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Block, W.Bruchle, J.Dvorak, K.Eberhardt, H.G.Essel, J.Even, U.Forsberg, A.Gorshkov, R.Graeger, K.E.Gregorich, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.Hild, A.Hubner, E.Jager, J.Khuyagbaatar, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, B.Lommel, L.J.Niewisch, H.Nitsche, J.P.Omtvedt, E.Parr, Z.Qin, D.Rudolph, J.Runke, B.Schausten, E.Schimpf, A.Semchenkov, J.Steiner, P.Thorle-Pospiech, J.Uusitalo, M.Wegrzecki, N.Wiehl Superheavy Element Flerovium (Element 114) Is a Volatile Metal NUCLEAR REACTIONS 244Pu(48Ca, Xn)288Fl/289Fl, E=259.4 MeV; measured reaction products, Eα, Iα; deduced two atoms of flerovium, the observed adsorption behavior of Fl points to a higher inertness compared to its nearest homologue in the group, Pb. However, the measured lower limit for the adsorption enthalpy of Fl on a Au surface points to the formation of a metal-metal bond of Fl with Au. Fl is the least reactive element in the group, but still a metal.
doi: 10.1021/ic4026766
2013AN10 Phys.Rev. C 87, 054311 (2013) A.N.Andreyev, V.Liberati, S.Antalic, D.Ackermann, A.Barzakh, N.Bree, T.E.Cocolios, J.Diriken, J.Elseviers, D.Fedorov, V.N.Fedosseev, D.Fink, S.Franchoo, S.Heinz, F.P.Hessberger, S.Hofmann, M.Huyse, O.Ivanov, J.Khuyagbaatar, B.Kindler, U.Koster, J.F.W.Lane, B.Lommel, R.Mann, B.Marsh, P.Molkanov, K.Nishio, R.D.Page, N.Patronis, D.Pauwels, D.Radulov, S.Saro, M.Seliverstov, M.Sjodin, I.Tsekhanovich, P.Van den Bergh, P.Van Duppen, M.Venhart, M.Veselsky α-decay spectroscopy of the chain 179Tlg → 175Aug → 171Irg → 167Rem RADIOACTIVITY 179Tl(α)[from U(p, F), E=1.4 GeV and 144Sm(40Ca, 4np), E=232 MeV]; 175Au, 171Ir(α)[from 179Tl(α) decay]; measured Eα, Iα, Eγ, (recoil)α-, αα-coin, T1/2, α-branching ratios, yields at ISOLDE-CERN and SHIP-GSI facilities. 179Tl, 175Au, 171Ir, 167Re; deduced levels, J, π. 172,173,175Pt, 176,177Hg, 179Au(α); measured Eα. Comparison with earlier experimental results.
doi: 10.1103/PhysRevC.87.054311
2013CO18 Eur.Phys.J. A 49, 112 (2013) V.F.Comas, S.Heinz, S.Hofmann, D.Ackermann, J.A.Heredia, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, B.Lommel, R.Mann Study of multi-nucleon transfer reactions in 58, 64Ni + 207Pb collisions at the velocity filter SHIP NUCLEAR REACTIONS 207Pb(58Ni, X), (64Ni, X), E=4.80-5.92 MeV/nucleon; measured Eα, Iα from fragment α decay, reaction fragments. Po, At, Rn, Fr deduced isotopic yields (primary and secondary), Q value, σ. Compared with Zagrebaev's calculations and data from nearby reactions. 208Pb(64Ni, X)271Ds, E≈0; measured reaction products; deduced σ.
doi: 10.1140/epja/i2013-13112-x
2013RU11 Phys.Rev.Lett. 111, 112502 (2013) D.Rudolph, U.Forsberg, P.Golubev, L.G.Sarmiento, A.Yakushev, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, J.M.Gates, K.E.Gregorich, C.J.Gross, F.P.Hessberger, R.-D.Herzberg, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, M.Schadel, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, K.Eberhardt, J.Even, C.Fahlander, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl Spectroscopy of Element 115 Decay Chains RADIOACTIVITY 288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α) [from 243Am(48Ca, X), E=5.4 MeV/nucleon]; measured decay products, Eα, Iα, Eγ, Iγ, X-rays. 280Rg, 276Mt; deduced T1/2, Q-value, α-decay scheme. Comparison with Monte Carlo calculations.
doi: 10.1103/PhysRevLett.111.112502
2012CO22 Eur.Phys.J. A 48, 180 (2012) V.Comas, S.Heinz, S.Hofmann, D.Ackermann, J.Heredia, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, B.Lommel, R.Mann Observation of rotating nuclear molecules and determination of their lifetimes NUCLEAR REACTIONS 207Pb(64Ni, X), E=5.92 MeV/nucleon; measured reaction fragments energy and angular distributions using SHIP velocity filter; calculated DNS (double nuclear system) T1/2 as function of peaks in angular distributions. 212mAt, 213Rn, 213Fr, 215Ra deduced σ(θ) vs cm velocity, TKE, T1/2 from the peaks of σ(θ).
doi: 10.1140/epja/i2012-12180-8
2012FO03 Acta Phys.Pol. B43, 305 (2012) U.Forsberg, P.Golubev, L.G.Sarmiento, J.Jeppsson, D.Rudolph, L.-L.Andersson, D.Ackermann, M.Asai, M.Block, K.Eberhardt, J.Even, Ch.E.Dullmann, J.Dvorak, J.M.Gates, K.E.Gregorich, R.-D.Herzberg, F.P.Hessberger, E.Jager, J.Khuyagbaatar, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, S.Lahiri, B.Lommel, M.Maiti, E.Merchan, J.P.Omtvedt, E.Parr, J.Runke, H.Schaffner, M.Schadel, A.Yakushev First Experiment at TASCA Towards X-Ray Fingerprinting of Element 115 Decay Chains NUCLEAR REACTIONS 208Pb(48Ca, 2n)254No, E=4.59 MeV/nucleon; measured reaction fusion-evaporation products; deduced distribution of evaporation residue. Comparison with theoretical calculations.
doi: 10.5506/APhysPolB.43.305
2012HE05 Eur.Phys.J. A 48, 32 (2012) S.Heinz, S.Hofmann, V.Comas, D.Ackermann, J.Heredia, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, B.Lommel, R.Mann The source of "background" fission events in experiments on superheavy elements NUCLEAR REACTIONS 238U(64Ni, F), (64Ni, X), E=5.53 MeV/nucleon;248Cm(48Ca, F), (48Ca, X), (54Cr, F), (54Cr, X), E=5.53 MeV/nucleon; measured E(heavy fragment), I(heavy fragment); deduced σ, σ(θ) vs fragment velocity.
doi: 10.1140/epja/i2012-12032-7
2012HO12 Eur.Phys.J. A 48, 62 (2012) S.Hofmann, S.Heinz, R.Mann, J.Maurer, J.Khuyagbaatar, D.Ackermann, S.Antalic, W.Barth, M.Block, H.G.Burkhard, V.F.Comas, L.Dahl, K.Eberhardt, J.Gostic, R.A.Henderson, J.A.Heredia, F.P.Hessberger, J.M.Kenneally, B.Kindler, I.Kojouharov, J.V.Kratz, R.Lang, M.Leino, B.Lommel, K.J.Moody, G.Munzenberg, S.L.Nelson, K.Nishio, A.G.Popeko, J.Runke, S.Saro, D.A.Shaughnessy, M.A.Stoyer, P.Thorle-Pospiech, K.Tinschert, N.Trautmann, J.Uusitalo, P.A.Wilk, A.V.Yeremin The reaction 48Ca + 248Cm → 296116* studied at the GSI-SHIP NUCLEAR REACTIONS 248Cm(48Ca, X)292Lv/293Lv, E=265.4, 270.2 MeV; measured reaction products, Eα, Iα(t) from 116 decay, 116 fission using SHIP velocity filter. 288,289Fl, 284,285Cn, 281Ds, 277Hs; deduced σ, T1/2, ground state quadrupole deformation, quasiparticle excitations, Q-values for different α decay chains. Comparison with other data.
doi: 10.1140/epja/i2012-12062-1
2012KH11 Phys.Rev. C 86, 064602 (2012) J.Khuyagbaatar, K.Nishio, S.Hofmann, D.Ackermann, M.Block, S.Heinz, F.P.Hessberger, K.Hirose, H.Ikezoe, B.Kinlder, B.Lommel, H.Makii, S.Mitsuoka, I.Nishinaka, T.Ohtsuki, Y.Wakabayashi, S.Yan Evidence for hindrance in fusion between sulfur and lead nuclei NUCLEAR REACTIONS 204,206,208Pb(34S, F), (36S, F), E=160-200 MeV; measured fission fragments, fission and ER σ at JAEA facility. Comparison with coupled-channel (HIVAP) calculations. Influence of coupling to the vibrational states in 34S.
doi: 10.1103/PhysRevC.86.064602
2011AN13 Eur.Phys.J. A 47, 62 (2011) S.Antalic, F.P.Hessberger, D.Ackermann, S.Heinz, S.Hofmann, Z.Kalaninova, B.Kindler, J.Khuyagbaatar, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, S.Saro, B.Streicher, B.Sulignano, M.Venhart Isomeric states in 253No and 253Fm RADIOACTIVITY 253Md, 253No(EC), (β+)[from 207Pb(48Ca, 2n), E=218.4 MeV]; measured Eα, Iα, Eγ, Iγ(t), delayed αγ-coin, X-rays, Ex, Ix(t), Xγ-coin, βγ-coin, γγ-coin. 253No deduced isomer decay T1/2, transition multipolatirities, levels, rotational band, ICC. 253Fm deduced levels, J, π, ICC, isomeric transition.
doi: 10.1140/epja/i2011-11062-y
2011GA19 Phys.Rev. C 83, 054618 (2011) J.M.Gates, Ch.E.Dullmann, M.Schadel, A.Yakushev, A.Turler, K.Eberhardt, J.V.Kratz, D.Ackermann, L.-L.Andersson, M.Block, W.Bruchle, J.Dvorak, H.G.Essel, P.A.Ellison, J.Even, U.Forsberg, J.Gellanki, A.Gorshkov, R.Graeger, K.E.Gregorich, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.Hild, A.Hubner, E.Jager, J.Khuyagbaatar, B.Kindler, J.Krier, N.Kurz, S.Lahiri, D.Liebe, B.Lommel, M.Maiti, H.Nitsche, J.P.Omtvedt, E.Parr, D.Rudolph, J.Runke, H.Schaffner, B.Schausten, E.Schimpf, A.Semchenkov, J.Steiner, P.Thorle-Pospiech, J.Uusitalo, M.Wegrzecki, N.Wiehl First superheavy element experiments at the GSI recoil separator TASCA: The production and decay of element 114 in the 244Pu(48Ca, 3-4n) reaction NUCLEAR REACTIONS 206Pb(48Ca, 2n)252No, E=231.2 MeV; 207Pb(48Ca, 2n)253No, E=231.2 MeV; 208Pb(48Ca, 2n)254No, E=231.2 MeV; 244Pu(48Ca, 3n)289Fl, E=254.6, 259.4 MeV; 244Pu(48Ca, 4n)288Fl, E=254.6, 259.4 MeV; measured evaporation residue spectra, Eα, Iα, fission fragment spectra, Eγ, αγ-, α(particle)-coin, production cross sections. TASCA recoil separator at GSI. Comparison with previous measurements. RADIOACTIVITY 252,253,254No, 288,289Fl(α), (SF); measured Eα, half-lives, branching ratios for α and SF decay modes, (evaporation residues)α- and (evaporation residues)(fission fragments)-correlations, αγ-, γ(SF events)-coin. 248Fm, 281Ds, 284,285Cn, (α); measured Eα, EVR-α-α correlations, Eγ, half-lives. 277Hs(SF); measured total kinetic energy (TKE), half-life.
doi: 10.1103/PhysRevC.83.054618
2011KA30 Phys.Rev. C 84, 054607 (2011) Sh.A.Kalandarov, G.G.Adamian, N.V.Antonenko, W.Scheid, S.Heinz, V.Comas, S.Hofmann, J.Khuyagbaatar, D.Ackermann, J.Heredia, F.P.Hessberger, B.Kindler, B.Lommel, R.Mann Emission of clusters with Z > 2 from excited actinide nuclei NUCLEAR REACTIONS 206Pb(25Mg, X)211Po/208Rn/209Rn/210Rn/211Rn/212Rn/213Rn/209Fr/210Fr/211Fr/212Fr/213Fr/212Ra/213Ra/214Ra/215Ra/214Th/215Th/216Th/217Th/218Th, E=5.9, 6.3, 8.7 MeV/nucleon; Pt(36S, X)207Rn/208Rn/209Rn/210Rn/213Rn/209Fr/210Fr/211Fr/212Fr/213Fr/210Ra/211Ra/212Ra/213Ra/214Ra/215Ra, E=5.30, 5.50, 5.96 MeV/nucleon; W(48Ca, X)207Rn/208Rn/209Rn/210Rn/213Rn/209Fr/210Fr/211Fr/212Fr/210Ra/211Ra/212Ra/213Ra/214Ra/215Ra/219Th/220Th/221Th/222Th/223Th, E=5.41 MeV/nucleon; measured Eα, Iα, cross sections, charge, and isotopic distributions of the residual heavy nuclei, velocity spectra using SHIP filter at GSI. Emission of complex fragments with Z>2 Comparison with theoretical calculations using dinuclear system model.
doi: 10.1103/PhysRevC.84.054607
2010AN01 J.Phys.(London) G37, 035102 (2010) A.N.Andreyev, S.Antalic, D.Ackermann, T.E.Cocolios, V.F.Comas, J.Elseviers, S.Franchoo, S.Heinz, J.A.Heredia, F.P.Hessberger, S.Hofmann, M.Huyse, J.Khuyagbaatar, I.Kojouharov, B.Kindler, B.Lommel, R.Mann, R.D.Page, S.Rinta-Antila, P.J.Sapple, S.Saro, P.Van Duppen, M.Venhart, H.V.Watkins The new isotope 179Pb and α-decay properties of 179Tlm RADIOACTIVITY 179Tl, 175Au, 179Pb(α) [from 144Sm(40Ca, 5n), E=232 MeV]; measured Eα, Iα; deduced T1/2, J, π. RADIOACTIVITY 172Pt(α); measured decay products, Eα, Iα; deduced %α branch.
doi: 10.1088/0954-3899/37/3/035102
2010DU06 Phys.Rev.Lett. 104, 252701 (2010) Ch.E.Dullmann, M.Schadel, A.Yakushev, A.Turler, K.Eberhardt, J.V.Kratz, D.Ackermann, L.-L.Andersson, M.Block, W.Bruchle, J.Dvorak, H.G.Essel, P.A.Ellison, J.Even, J.M.Gates, A.Gorshkov, R.Graeger, K.E.Gregorich, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.Hild, A.Hubner, E.Jager, J.Khuyagbaatar, B.Kindler, J.Krier, N.Kurz, S.Lahiri, D.Liebe, B.Lommel, M.Maiti, H.Nitsche, J.P.Omtvedt, E.Parr, D.Rudolph, J.Runke, B.Schausten, E.Schimpf, A.Semchenkov, J.Steiner, P.Thorle-Pospiech, J.Uusitalo, M.Wegrzecki, N.Wiehl Production and Decay of Element 114: High Cross Sections and the New Nucleus 277Hs NUCLEAR REACTIONS 244Pu(48Ca, 3n)289Fl, 244Pu(48Ca, 4n)288Fl, E=259.4, 254.6 MeV; measured reaction products, Eα, Iα; deduced σ, α-decay chains, T1/2. RADIOACTIVITY 288,289Fl, 285Cn(α), 281Ds(α), 284Cn, 281Ds, 277Hs(SF); measured reaction products, Eα, Iα; deduced α-decay chains, T1/2.
doi: 10.1103/PhysRevLett.104.252701
2010GR04 Phys.Rev. C 81, 061601 (2010) R.Graeger, D.Ackermann, M.Chelnokov, V.Chepigin, Ch.E.Dullmann, J.Dvorak, J.Even, A.Gorshkov, F.P.Hessberger, D.Hild, A.Hubner, E.Jager, J.Khuyagbaatar, B.Kindler, J.V.Kratz, J.Krier, A.Kuznetsov, B.Lommel, K.Nishio, H.Nitsche, J.P.Omtvedt, O.Petrushkin, D.Rudolph, J.Runke, F.Samadani, M.Schadel, B.Schausten, A.Turler, A.Yakushev, Q.Zhi Experimental study of the 238U(36S, 3-5n)269-271Hs reaction leading to the observation of 270Hs NUCLEAR REACTIONS 238U(36S, 3n), (36S, 4n), (36S, 5n), E=256.4 MeV; measured reaction products using COMPACT system of efficient and rapid chemical-separation and online detection based on the cryo-thermo chromatography method. 269,270,271Hs; deduced production σ. RADIOACTIVITY 269,270,271Hs, 265,267Sg(α); measured decay products, Iα, Eα; deduced T1/2, αα correlations; 261,263Rf, 264Sg(SF); measured decay products, Eα, Iα; deduced α-SF correlations.
doi: 10.1103/PhysRevC.81.061601
2010HE10 Eur.Phys.J. A 43, 55 (2010) F.P.Hessberger, S.Antalic, B.Sulignano, D.Ackermann, S.Heinz, S.Hofmann, B.Kindler, J.Khuyagbaatar, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, S.Saro, B.Streicher, J.Uusitalo, M.Venhart, A.V.Yeremin Decay studies of K isomers in 254No NUCLEAR REACTIONS 208Pb(48Ca, 2n), E=213.6, 218.4 MeV; measured Eγ, Iγ, Eα, Iα, E(ce), I(ce), γγ-, γ(ce)-coin. 254No; deduced branching ratios, bands, levels, J, π, T1/2, configurations. RADIOACTIVITY 254Md, 254No(α), (EC) [from 208Pb(48Ca, 2n), E=213.6, 218.4 MeV]; measured Eγ, Iγ, Eα, Iα, E(ce), I(ce), γγ-, γ(ce)-coin; deduced branching ratios, bands, levels, J, π, T1/2, configurations.
doi: 10.1140/epja/i2009-10899-9
2010HE11 Eur.Phys.J. A 43, 175 (2010) F.P.Hessberger, S.Antalic, D.Ackermann, S.Heinz, S.Hofmann, J.Khuyagbaatar, B.Kindler, I.Kojouharov, B.Lommel, R.Mann Alpha-decay properties of 261Bh RADIOACTIVITY 253Lr, 257Db, 261Bh(α) [209Bi(54Cr, 2n), E=271 MeV]; measured Eα, Iα, Eγ, αγ-coin; calculated T1/2, hindrance factors. 257Db, 261Bh; deduced levels, J, π.
doi: 10.1140/epja/i2010-10913-3
2010HE12 Eur.Phys.J. A 43, 181 (2010) S.Heinz, V.Comas, S.Hofmann, D.Ackermann, J.Heredia, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, B.Lommel, R.Mann Investigation of di-nuclear systems as entrance channel to fusion NUCLEAR REACTIONS 207Pb(64Ni, X)211Po/212At/213Rn/213Fr/214Ra, E=4.80, 5.00, 5.20, 5.40, 5.53, 5.92 MeV/nucleon; measured σ(θ), E(residue) using the SHIP facility.
doi: 10.1140/epja/i2010-10914-2
2010HE14 Nucl.Phys. A834, 362c (2010) S.Heinz, V.Comas, S.Hofmann, D.Ackermann, J.Heredia, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, B.Lommel, R.Mann, C.Golabek, W.Mittig, F.Rejmund, A.C.C.Villari Study of heavy di-nuclear systems NUCLEAR REACTIONS 207Pb(64Ni, X)211Po/212At/213Rn/213Fr/214Ra, E=4.80, 5.00, 5.20, 5.40, 5.53, 5.92 MeV/nucleon; measured Eα, Iα, σ(θ), yields, fragment energy spectra (TKE) using SHIP velocity filter. 238U(238U, X), E=6.09, 6.49, 6.91, 7.10, 7.35 MeV/nucleon; measured σ(θ), mass distributions, yields, fragment energy spectra (TKE) using VAMOS spectrometer; deduced interaction times using diffusion model.
doi: 10.1016/j.nuclphysa.2010.01.040
2010HE25 Eur.Phys.J. A 46, 337 (2010) J.A.Heredia, A.N.Andreyev, S.Antalic, S.Hofmann, D.Ackermann, V.F.Comas, S.Heinz, F.P.Hessberger, B.Kindler, J.Khuyagbaatar, B.Lommel, R.Mann The new isotope 208Th NUCLEAR REACTIONS 147Sm(64Ni, 2n), E=288 MeV;147Sm(64Ni, 3n), E=288, 294 MeV;150Sm(64Ni, 4n), E=294 MeV;152Sm(64Ni, 4n), E=288 MeV; measured Eα, Iα(t). 208,209,210,212Th deduced α decay widths, T1/2, α decay chains, 208Th new isotope. Comparison with other data.
doi: 10.1140/epja/i2010-11058-1
2010KH06 Eur.Phys.J. A 46, 59 (2010) J.Khuyagbaatar, F.P.Hessberger, S.Hofmann, D.Ackermann, V.S.Comas, S.Heinz, J.A.Heredia, B.Kindler, I.Kojouharov, B.Lommel, R.Mann, K.Nishio, A.Yakushev The new isotope 236Cm and new data on 233Cm and 237, 238, 240Cf NUCLEAR REACTIONS 204,206,207Pb(36Si, 2n), (36Si, 3n), E=163.6, 170.3 MeV; measured Eα, Iα, evaporation residues, Eγ, Iγ, X-rays, (particle)γ-coin, (particle)X-coin. 237,238,239,240,241Cf deduced σ. RADIOACTIVITY 237,238,240Cf(SF), (α); measured Eα, Iα, delayed αα-coin, TKE; deduced spontaneous fission T1/2. 237,240Cf deduced mass excess. 238,240Cf deduced α-decay T1/2. 233,236Cm(α), (EC)[from Cf α decay]; measured Eα, Iα, Iβ; deduced α-decay T1/2, α-branching. 236Cm deduced mass excess, spontaneous fission T1/2. 229Pu(α); measured Eα, Iα(t); deduced T1/2.
doi: 10.1140/epja/i2010-11026-9
2010NI14 Phys.Rev. C 82, 024611 (2010) K.Nishio, S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, Y.Aritomo, V.F.Comas, Ch.E.Dullmann, A.Gorshkov, R.Graeger, K.Hagino, S.Heinz, J.A.Heredia, K.Hirose, H.Ikezoe, J.Khuyagbaatar, B.Kindler, I.Kojouharov, B.Lommel, R.Mann, S.Mitsuoka, Y.Nagame, I.Nishinaka, T.Ohtsuki, A.G.Popeko, S.Saro, M.Schadel, A.Turler, Y.Watanabe, A.Yakushev, A.V.Yeremin Nuclear orientation in the reaction 34S+238U and synthesis of the new isotope 268Hs NUCLEAR REACTIONS 238U(34S, xn)267Hs/268Hs, E=148-170 MeV; measured evaporation residues and Eα, Eγ, x-rays, (fragment)α-, (fragment)γ-coin, production σ, fission σ(E), mass distribution of fission fragments as a function of energy. Comparison of fission σ(E) with calculations based on the three-dimensional Langevin equation and deformed target nuclei. Coupled-channel calculations for mass distributions. 268,269Sg, 272,273Hs, 269,271,272Mt, 274,275,276,277Sg, 273,275,276Rg, 278,279,280,281Cn; theoretical estimates of production rates in 243Am, 244Pu, 248Cm(34S, xn), (36S, xn) reactions. RADIOACTIVITY 267,268Hs(α)[from 238U(34S, X), E=163.0 MeV]; 263Sg, 259Rf(α); 264Sg(SF); measured Eα, Eγ, x-rays, (fragment)α-, (fragment)γ-coin, half-lives; deduced Qα. Systematics of Qα values for even-even Z=104-114 and N=150-170 nuclei.
doi: 10.1103/PhysRevC.82.024611
2010ST14 Eur.Phys.J. A 45, 275 (2010) B.Streicher, F.P.Hessberger, S.Antalic, S.Hofmann, D.Ackermann, S.Heinz, B.Kindler, J.Khuyagbaatar, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, S.Saro, B.Sulignano, J.Uusitalo, M.Venhart Alpha-gamma decay studies of 261Sg and 257Rf NUCLEAR REACTIONS 208Pb(54Cr, n), (54Cr, 2n), E=254-281 MeV; 208Pb(54Cr, 2n), E=258 MeV; measured E(residue), I(residue, θ), Eα, Iα(θ), Eγ, Iγ; deduced σ. RADIOACTIVITY 255Fm, 257No, 257Rf, 261Sg(α); measured Eα, Iα, Eγ, Iγ, γγ-coin, αγ-coin, E(K X-rays). 251Cf, 253Fm, 257Rf deduced levels, J, π; 257Rf isomer deduced T1/2, decay scheme. COMPILATION N=151, 153; compiled low-lying Nilsson levels; compared to Parkhomenko's calculations.
doi: 10.1140/epja/i2010-11005-2
2009AN14 Phys.Rev. C 80, 024302 (2009) A.N.Andreyev, S.Antalic, D.Ackermann, T.E.Cocolios, V.F.Comas, J.Elseviers, S.Franchoo, S.Heinz, J.A.Heredia, F.P.Hessberger, S.Hofmann, M.Huyse, J.Khuyagbaatar, I.Kojouharov, B.Kindler, B.Lommel, R.Mann, R.D.Page, S.Rinta-Antila, P.J.Sapple, S.Saro, P.Van Duppen, M.Venhart, H.V.Watkins Decay of the 9/2- isomer in 181Tl and mass determination of low-lying states in 181Tl, 177Au, and 173Ir RADIOACTIVITY 181Tl, 177Au(α) [from 144Sm(40Ca, 2np)]; measured Eα, Iα, Eγ, Iγ, γγ-, αγ-coin, α-α correlations and half-lives; deduced branching ratios and hindrance factors. 173Ir, 177Au, 181Tl; deduced levels, J, π, isomers. 173Ir, 173mIr, 177Au, 177mAu, 181Tl, 181mTl, 185Bi; deduced mass excesses. Level energy systematics of odd-A Tl isotopes.
doi: 10.1103/PhysRevC.80.024302
2009AN17 Phys.Rev. C 80, 044334 (2009) A.N.Andreyev, S.Antalic, D.Ackermann, T.E.Cocolios, V.F.Comas, J.Elseviers, S.Franchoo, S.Heinz, J.A.Heredia, F.P.Hessberger, S.Hofmann, M.Huyse, J.Khuyagbaatar, I.Kojouharov, B.Kindler, B.Lommel, R.Mann, R.D.Page, S.Rinta-Antila, P.J.Sapple, S.Saro, P.Van Duppen, M.Venhart, H.V.Watkins Identification and decay of the 0.48 ms 13/2+ isomer in 181Hg NUCLEAR REACTIONS 144Sm(40Ca, n2p), E=177-229 MeV; measured Eγ, Iγ, γγ-coin, delayed γ, and half-lives. 181Hg; deduced levels, J, π, multipolarities, isomer. Comparison with earlier experimental data.
doi: 10.1103/PhysRevC.80.044334
2009AN20 Phys.Rev. C 80, 054322 (2009) A.N.Andreyev, S.Antalic, D.Ackermann, T.E.Cocolios, V.F.Comas, J.Elseviers, S.Franchoo, S.Heinz, J.A.Heredia, F.P.Hessberger, S.Hofmann, M.Huyse, J.Khuyagbaatar, I.Kojouharov, B.Kindler, B.Lommel, R.Mann, R.D.Page, S.Rinta-Antilla, P.J.Sapple, S.Saro, P.Van Duppen, M.Venhart, H.V.Watkins α decay of 180, 181Pb RADIOACTIVITY 180,181Pb(α) [from 144Sm(40Ca, xn), E=196 MeV];measured Eα, Iα, (evaporation residues)α-, αγ-coin, α-α correlations, and half-lives using SHIP at GSI facility; deduced branching ratios and α-reduced widths. 177Hg; deduced levels, J, π. 172,173Pt, 176,177Hg(α); measured Eα, half-life. 178Hg, 182Pb; measured Eα.
doi: 10.1103/PhysRevC.80.054322
2008HE16 Eur.Phys.J. A 38, 227 (2008) S.Heinz, V.Comas, F.P.Hessberger, S.Hofmann, D.Ackermann, H.G.Burkhard, Z.Gan, J.Heredia, J.Khuyagbaatar, B.Kindler, B.Lommel, R.Mann, J.Maurer, K.Nishio, B.Sulignano Di-nuclear systems studied with the velocity filter SHIP NUCLEAR REACTIONS 206Pb(25Mg, X), E=5.9, 8.7 MeV/nucleon; 207Pb(64Ni, X), E=5.9 MeV/nucleon; measured Eα, Iα, product velocity distributions; deduced reaction mechanism features.
doi: 10.1140/epja/i2008-10671-9
2008KH10 Eur.Phys.J. A 37, 177 (2008) J.Khuyagbaatar, S.Hofmann, F.P.Hessberger, D.Ackermann, H.G.Burkhard, S.Heinz, B.Kindler, I.Kojouharov, B.Lommel, R.Mann, J.Maurer, K.Nishio, Yu.Novikov Spontaneous fission of neutron-deficient fermium isotopes and the new nucleus 241Fm NUCLEAR REACTIONS 207Pb(40Ar, 3n), E=193 MeV; 208Pb(40Ar, 4n), E=201 MeV; 206Pb(40Ar, xn)242Fm/243Fm/244Fm, E=185-204 MeV; 204Pb(40Ar, 3n), E=187-206 MeV; 204Pb(40Ar, 2n), E=187 MeV; measured σ, Eγ, Iγ, Eα, αγ-, (recoil)γ-coin following residual nucleus decay. Non observance of 242Fm nor K-isomers in 241,242,243,244Fm. Comparison with HIVAP calculations. RADIOACTIVITY 242Fm(α), (SF), 241,243,244Fm(EC), (α), (SF) [from 204,206,207,208Pb(40Ar, X)]; measured Eα, Eγ, αγ-coin, T1/2, branching ratio, total kinetic energy, SF hindrance factors. Non observance of 242Fm. Comparison with T1/2 calculations. 236,237,238,239Fm(SF); calculated T1/2.
doi: 10.1140/epja/i2008-10608-4
2007HO14 Int.J.Mod.Phys. E16, 937 (2007) S.Hofmann, D.Ackermann, S.Antalic, H.G.Burkhard, V.F.Comas, R.Dressler, Z.Gan, S.Heinz, J.A.Heredia, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, G.Munzenberg, K.Nishio, A.G.Popeko, S.Saro, H.J.Schott, B.Streicher, B.Sulignano, J.Uusitalo, A.V.Yeremin Studies of superheavy elements at SHIP NUCLEAR REACTIONS 238U(48Ca, X), E=233.3-239.3 MeV; measured Eα from spontaneous fission.
doi: 10.1142/S021830130700640X
2007HO18 Eur.Phys.J. A 32, 251 (2007) S.Hofmann, D.Ackermann, S.Antalic, H.G.Burkhard, V.F.Comas, R.Dressler, Z.Gan, S.Heinz, J.A.Heredia, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, G.Munzenberg, K.Nishio, A.G.Popeko, S.Saro, H.J.Schott, B.Streicher, B.Sulignano, J.Uusitalo, M.Venhart, A.V.Yeremin The reaction 48Ca + 238U → 286112* studied at the GSI-SHIP NUCLEAR REACTIONS 238U(48Ca, X), E=233.3-239.3 MeV; measured σ, Eα, (recoil)α-coin following residual nucleus decay; deduced evidence for 286Cn. RADIOACTIVITY 283Cn(α), (SF) [from 238U(48Ca, X)]; measured Eα, (recoil)α-coin, T1/2.
doi: 10.1140/epja/i2007-10373-x
2007HO24 J.Nucl.Radiochem.Sci. 8, 73 (2007) S.Hofmann, H.Ikezoe, F.P.Hessberger, D.Ackermann, S.Antalic, V.F.Comas, Z.Gan, S.Heinz, J.A.Heredia, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, B.Lommel, M.Mazzocco, S.Mitsuoka, Y.Nagame, T.Ohtsuki, A.G.Popeko, S.Saro, H.J.Schott, B.Sulignano, A.Svirikhin, K.Tsukada, K.Tsuruta, A.V.Yeremin Measurement of Evaporation Residue and Fission Cross Sections of the Reaction 30Si + 238U at Subbarrier Energies NUCLEAR REACTIONS 238U(30Si, X), E=140-183 MeV; measured fission fragment energy and mass distributions, fission cross sections. Compared results to model calculations.
2007KH22 Eur.Phys.J. A 34, 355 (2007) J.Khuyagbaatar, S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, H.G.Burkhard, S.Heinz, B.Kindler, A.F.Lisetskiy, B.Lommel, R.Mann, K.Nishio, H.J.Schott, B.Sulignano Isomeric states in 214Th and 213Th NUCLEAR REACTIONS 164Dy(54Cr, X)213Th/214Th, E=246, 258 MeV; measured σ, Eγ, Iγ, αγ-coin following residual nucleus decay. 213,214Th deduced levels, J, π, T1/2. NUCLEAR STRUCTURE 214,216Th, 212,214Ra, 210,212Rn, 208,210Po; analyzed levels, J, π, B(E2) using shell model.
doi: 10.1140/epja/i2007-10512-5
2006NI10 Eur.Phys.J. A 29, 281 (2006) K.Nishio, S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, V.F.Comas, Z.Gan, S.Heinz, J.A.Heredia, H.Ikezoe, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, B.Lommel, R.Mann, M.Mazzocco, S.Mitsuoka, Y.Nagame, T.Ohtsuki, A.G.Popeko, S.Saro, H.J.Schott, B.Sulignano, A.Svirikhin, K.Tsukada, K.Tsuruta, A.V.Yeremin Measurement of evaporation residue cross-sections of the reaction 30Si + 238U at subbarrier energies NUCLEAR REACTIONS 238U(30Si, F), (30Si, 3n), (30Si, 4n), (30Si, 5n), E=145.5, 151.2, 163.5 MeV; measured fission and evaporation residue σ. RADIOACTIVITY 263,265Sg, 259Rf, 255No(α) [from 238U(30Si, xn) and subsequent decay]; measured Eα, T1/2. 262,264Sg, 261Rf(SF) [from 238U(30Si, xn) and subsequent decay]; measured T1/2, fission fragments kinetic energy.
doi: 10.1140/epja/i2006-10091-y
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