NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = M.Laatiaoui Found 31 matches. 2023KR02 Nature(London) 617, 706 (2023) S.Kraemer, J.Moens, M.Athanasakis-Kaklamanakis, S.Bara, K.Beeks, P.Chhetri, K.Chrysalidis, A.Claessens, T.E.Cocolios, J.G.M.Correia, H.De Witte, R.Ferrer, S.Geldhof, R.Heinke, N.Hosseini, M.Huyse, U.Koster, Y.Kudryavtsev, M.Laatiaoui, R.Lica, G.Magchiels, V.Manea, C.Merckling, L.M.C.Pereira, S.Raeder, T.Schumm, S.Sels, P.G.Thirolf, S.M.Tunhuma, P.Van Den Bergh, P.Van Duppen, A.Vantomme, M.Verlinde, R.Villarreal, U.Wahl Observation of the radiative decay of the 229Th nuclear clock isomer RADIOACTIVITY 229Ac(β-), 229Th(IT) [from U(p, X), E=1.4 GeV]; measured decay products, Eγ, Iγ; deduced isomeric transition energies and T1/2. Comparison with available data. The ISOLDE facility at CERN.
doi: 10.1038/s41586-023-05894-z
2022KA45 Phys.Rev. C 106, 054325 (2022) O.Kaleja, B.Andjelic, O.Bezrodnova, K.Blaum, M.Block, S.Chenmarev, P.Chhetri, C.Droese, Ch.E.Dullmann, M.Eibach, S.Eliseev, J.Even, P.Filianin, F.Giacoppo, S.Gotz, Yu.Gusev, M.J.Gutierrez, F.P.Hessberger, N.Kalantar-Nayestanaki, J.J.W.van de Laar, M.Laatiaoui, S.Lohse, N.Martynova, E.Minaya Ramirez, A.K.Mistry, T.Murbock, Yu.Novikov, S.Raeder, D.Rodriguez, F.Schneider, L.Schweikhard, P.G.Thirolf, A.Yakushev Direct high-precision mass spectrometry of superheavy elements with SHIPTRAP ATOMIC MASSES 251,254No, 254,255,256Lr, 257Rf; measured cyclotron frequency; deduced mass excesses, two-neutron shell gap. Comparison to AME2020. Phase-imaging ion-cyclotron resonance mass spectrometry (PI-ICR MS) at SHIPTRAP setup. Isotopes produced in following reactions 206Pb(48Ca, 3n)251No, E=4.8 MeV/nucleon, 208Pb(48Ca, 2n)254No, E=4.56 MeV/nucleon, 209Bi(48Ca, 3n)254Lr, E=4.81 MeV/nucleon, 209Bi(48Ca, 2n)255Lr, E=4.56 MeV/nucleon, 209Bi(48Ca, n)256Lr, E=4.5 MeV/nucleon, 208Pb(50Ti, n)257Rf, E=4.65 MeV/nucleon at GSI Darmstadt. RADIOACTIVITY 258Db, 254Lr(α); deduced Q values. Comparison to other experimental data.
doi: 10.1103/PhysRevC.106.054325
2022NO01 Phys.Rev. C 105, L021302 (2022) S.Nothhelfer, Th.E.Albrecht-Schonzart, M.Block, P.Chhetri, Ch.E.Dullmann, J.G.Ezold, V.Gadelshin, A.Gaiser, F.Giacoppo, R.Heinke, T.Kieck, N.Kneip, M.Laatiaoui, Ch.Mokry, S.Raeder, J.Runke, F.Schneider, J.M.Sperling, D.Studer, P.Thorle-Pospiech, N.Trautmann, F.Weber, K.Wendt Nuclear structure investigations of 253-255Es by laser spectroscopy NUCLEAR MOMENTS 253,254,255Es; measured hyperfine spectra; deduced J, isotope shifts, hyperfine constants, nuclear spins, magnetic dipole moments, electric quadrupole moments. Comparison with previous experimental data. Laser resonance ionization spectroscopy. RISIKO mass separator at Johannes Gutenberg University Mainz.
doi: 10.1103/PhysRevC.105.L021302
2021BL01 Prog.Part.Nucl.Phys. 116, 103834 (2021) M.Block, M.Laatiaoui, S.Raeder Recent progress in laser spectroscopy of the actinides RADIOACTIVITY 237Np, 242Pu, 241,243Am, 244,248Cm, 249Bk, 249,251Cf, 254,255,256Lr, 252,253,254,255,256No(α); analyzed available data, experimental progress of laser spectroscopy and available actinides; deduced possibilities to measure nuclear properties such as J, mean-square charge radii and electromagnetic moments in a nuclear-model independent way.
doi: 10.1016/j.ppnp.2020.103834
2021RA19 Phys.Rev. A 104, 022813 (2021) H.Ramanantoanina, A.Borschevsky, M.Block, M.Laatiaoui Electronic structure of Rf+ (Z=104) from ab initio calculations ATOMIC PHYSICS Z=104; calculated the energy spectrum and the spectroscopic properties of the superheavy Rf element ion using the four-component relativistic Dirac-Coulomb Hamiltonian and the multireference configuration interaction model to tackle the complex electronic structure problem that combines strong relativistic effects and electron correlation.
doi: 10.1103/PhysRevA.104.022813
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
2020MO10 Acta Phys.Pol. B51, 849 (2020) P.Mosat, S.Antalic, F.P.Hessberger, D.Ackermann, B.Andel, M.Block, Z.Kalaninova, B.Kindler, M.Laatiaoui, B.Lommel, A.K.Mistry, J.Piot, M.Vostinar Isomeric States in 255Rf, 256Rf and 257Rf
doi: 10.5506/APhysPolB.51.849
2020MO11 Phys.Rev. C 101, 034310 (2020) P.Mosat, F.P.Hessberger, S.Antalic, D.Ackermann, B.Andel, M.Block, S.Hofmann, Z.Kalaninova, B.Kindler, M.Laatiaoui, B.Lommel, A.K.Mistry, J.Piot, M.Vostinar K isomerism in 255Rf and total kinetic energy measurements for spontaneous fission of 255, 256, 258Rf RADIOACTIVITY 255,256RF(SF)[from 207,208Pb(50Ti, 2n), E=228.8, 238.3, 239.8 MeV]; 258Db(EC)[from 209Bi(50Ti, n), E=232.6 MeV]; 258Rf(SF)[from 258Db(EC)]; measured evaporation residues (ERs) using the velocity filter SHIP at GSI, spontaneous fission events using time and position correlations, (fragment)(fragment)-coin, total kinetic energy (TKE) distributions of SF fragments, half-lives of 255,256Rf decays from ER-SF correlated events, half-life of 258Rf decay from ce-SF correlated events, Eγ, Iγ, x rays, ce, γ(ce)-coin, K-isomers and their half-lives in 255Rf from ER-ce-SF/α and ER-ce-(ce)-SF/α correlated events using the STOP and BOX silicon strip detectors, and Ge clover detector at GSI; deduced tentative bimodal fission mode. 255Rf; deduced levels, J, π, two new high-K isomers and their Nilsson configurations; proposed level schemes of the isomers.
doi: 10.1103/PhysRevC.101.034310
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
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
2019VE05 Phys.Rev. C 100, 024315 (2019) M.Verlinde, S.Kraemer, J.Moens, K.Chrysalidis, J.G.Correia, S.Cottenier, H.De Witte, D.V.Fedorov, V.N.Fedosseev, R.Ferrer, L.M.Fraile, S.Geldhof, C.A.Granados, M.Laatiaoui, T.A.L.Lima, P.-C.Lin, V.Manea, B.A.Marsh, I.Moore, L.M.C.Pereira, S.Raeder, P.Van den Bergh, P.Van Duppen, A.Vantomme, E.Verstraelen, U.Wahl, S.G.Wilkins Alternative approach to populate and study the 229Th nuclear clock isomer RADIOACTIVITY 229mTh(IT)[from β- decay of 229Ac produced in U(p, X), E=1.4 GeV reaction, via a laser ion source at ISOLDE-CERN]; proposed an alternative method to produce the low-energy isomer in 229Th at 7.6 eV after the implantation of 229Ac ions in a large-band gap CaF2 host. Discussed benefits of using 229Ac ion beam in contrast to common use of α decay of 233U for the study of half-life and excitation energy of the 229Th isomer. Preparatory experiments, testing key ingredients of this concept, were conducted at ISOLDE-CERN.
doi: 10.1103/PhysRevC.100.024315
2019VO03 Eur.Phys.J. A 55, 17 (2019) M.Vostinar, F.P.Hessberger, D.Ackermann, B.Andel, S.Antalic, M.Block, Ch.Droese, J.Even, S.Heinz, Z.Kalaninova, I.Kojouharov, M.Laatiaoui, A.K.Mistry, J.Piot, H.Savajols Alpha-gamma decay studies of 258Db and its (grand)daughter nuclei 254Lr and 250Md NUCLEAR REACTIONS 209Bi(50Ti, n)258Db, E=236 MeV; measured (after separation of evaporation residues with kinetic energy 50 MeV by the SHIP velocity filter) emitted particles using position sensitive Si strip detector, six SSSDs arranged in a box surrounding the stop detector, Eγ, Iγ, X-rays using HPGe clover detector, subsequent α-decay and SF events, T1/2 using time difference between evaporation residues implantation and subsequent α-decay of the isotopes, 258Db α-decays αγ-coin, αX-rays coin; deduced α, γ transitions, levels, J, π. 250Md, 254Lr, 254No; deduced α-decays, levels, γ transitions, Qα systematics for 250Md. 254Lr, 258Db; deduced levels, J, π, possible single-particle states configurations.
doi: 10.1140/epja/i2019-12701-y
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
2018CH45 Acta Phys.Pol. B49, 599 (2018) P.Chhetri, C.S.Moodley, S.Raeder, M.Block, F.Giacoppo, S.Gotz, F.P.Hessberger, M.Eibach, O.Kaleja, M.Laatiaoui, A.K.Mistry, T.Murbock, Th.Walther Investigation of the First Ionization Potential of Ytterbium in Argon Buffer Gas ATOMIC PHYSICS Yb; measured photoexcitation to excite Rydberg states in natYb (chemical homologue of No) using the fact of recent observation of such states in No (Z=102) inside buffer gas cell; measured Rydberg levels with a similar principle quantum number as observed on-line for No using laser resonance ionization spectroscopy ultra-sensitive method based on RAdiation Detected Resonance Ionization Spectroscopy (RADRIS) technique in a buffer gas environment laser resonance ionization spectroscopy in a buffer gas cell to determine the ionization potential of Yb (Z=70); deduced Rydberg states energy, principal quantum number, ionization potentials and the dependence on gas pressure; extrapolated ionization potential in vacuum; compared with literature value.
doi: 10.5506/aphyspolb.49.599
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
2018MO20 Acta Phys.Pol. B49, 605 (2018) P.Mosat, S.Antalic, F.P.Hessberger, D.Ackermann, B.Andel, M.Block, S.Hofmann, Z.Kalaninova, B.Kindler, I.Kojouharov, M.Laatiaoui, B.Lommel, A.K.Mistry, K.Nishio, J.Piot, B.Sulignano, M.Vostinar Total Kinetic Energy Measurements for Spontaneous Fission of 255, 256, 258Rf RADIOACTIVITY 255,256,258Rf(SF) [Rf isotopes produced in fusion-evaporation reactions]; measured fission fragments kinetic energy vs fragment implantation depth using STIP BOX coincidences and anticoincidences; deduced TKE.
doi: 10.5506/aphyspolb.49.605
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
2017FE10 Nat. Commun. 8, 14520 (2017) R.Ferrer, A.Barzakh, B.Bastin, R.Beerwerth, M.Block, P.Creemers, H.Grawe, R.de Groote, P.Delahaye, X.Flechard, S.Franchoo, S.Fritzsche, L.P.Gaffney, L.Ghys, W.Gins, C.Granados, R.Heinke, L.Hijazi, M.Huyse, T.Kron, Yu.Kudryavtsev, M.Laatiaoui, N.Lecesne, M.Loiselet, F.Lutton, I.D.Moore, Y.MartÃnez, E.Mogilevskiy, P.Naubereit, J.Piot, S.Raeder, S.Rothe, H.Savajols, S.Sels, V.Sonnenschein, J-C.Thomas, E.Traykov, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wendt, A.Zadvornaya Towards high-resolution laser ionization spectroscopy of the heaviest elements in supersonic gas jet expansion NUCLEAR MOMENTS 212,213,214,215,227Ac; measured frequencies; deduced hfs spectra, magnetic dipole and electric quadrupole moments. In-gas laser ionization and spectroscopy (IGLIS) technique.
doi: 10.1038/ncomms14520
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
2017GR18 Phys.Rev. C 96, 054331 (2017) C.Granados, P.Creemers, R.Ferrer, L.P.Gaffney, W.Gins, R.de Groote, M.Huyse, Yu.Kudryavtsev, Y.Martinez, S.Raeder, S.Sels, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wrzosek-Lipska, A.Zadvornaya, A.E.Barzakh, B.Bastin, P.Delahaye, L.Hijazi, N.Lecesne, F.Luton, J.Piot, H.Savajols, J.-C.Thomas, E.Traykov, R.Beerwerth, S.Fritzsche, M.Block, X.Flechard, S.Franchoo, L.Ghys, H.Grawe, R.Heinke, T.Kron, P.Naubereit, K.Wendt, M.Laatiaoui, I.Moore, V.Sonnenschein, M.Loiselet, E.Mogilevskiy, S.Rothe In-gas laser ionization and spectroscopy of actinium isotopes near the N=126 closed shell NUCLEAR MOMENTS 212,213,214,215,227Ac; measured optical hyperfine spectra by the in-gas laser ionization and spectroscopy (IGLIS) technique at the LISOL facility of Cyclotron Research Centre, Louvain-la-Neuve; deduced g factors, quadrupole moments and spins of the ground states, configurations. Comparison with large-scale nuclear-shell-model calculations. 212,213Ac produced in 197Au(20Ne, 5n), (20Ne, 4n), E=145 MeV. 214,215Ac produced in 197Au(22Ne, 5n), (22Ne, 4n), E=143 MeV. RADIOACTIVITY 215Ac(α)[from 197Au(22Ne, 4n), E=143 MeV; measured Eα.
doi: 10.1103/PhysRevC.96.054331
2016FE11 Nat. Commun. 8, 14520 (2016), See 2017FE10 R.Ferrer, A.Barzakh, B.Bastin, R.Beerwerth, M.Block, P.Creemers, H.Grawe, R.de Groote, P.Delahaye, X.Flechard, S.Franchoo, S.Fritzsche, L.P.Gaffney, L.Ghys, W.Gins, C.Granados, R.Heinke, L.Hijazi, M.Huyse, T.Kron, Yu.Kudryavtsev, M.Laatiaoui, N.Lecesne, M.Loiselet, F.Lutton, I.D.Moore, Y.Martinez, E.Mogilevskiy, P.Naubereit, J.Piot, S.Raeder, S.Rothe, H.Savajols, S.Sels, V.Sonnenschein, J-C.Thomas, E.Traykov, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wendt, A.Zadvornaya Towards high-resolution laser ionization spectroscopy of the heaviest elements in supersonic gas jet expansion NUCLEAR MOMENTS 212,213,214,215,227Ac; measured frequencies; deduced nuclear magnetic moments, electric quadrupole moments, radii. Comparison with theoretical calculations, experimental data.
doi: 10.1038/ncomms14520
2016HE08 Eur.Phys.J. A 52, 192 (2016) F.P.Hessberger, S.Antalic, A.K.Mistry, D.Ackermann, B.Andel, M.Block, Z.Kalaninova, B.Kindler, I.Kojouharov, M.Laatiaoui, M.Laatiaoui, B.Lommel, J.Piot, M.Vostinar Alpha- and EC-decay measurements of 257Rf RADIOACTIVITY 257Rf(α), (EC); measured Eα, Iα, Eγ, Iγ, γα-coin, γα delayed coin, γα correlations, conversion electrons, X-rays using Ge clover detector for γ, ADC, TAC. 257Rf deduced enhanced α-decay scheme, new transition from 70 keV level to 724 level in 253No, possible EC-decay scheme. 253No deduced levels, new E1 γ transition from 724 keV to 167 keV level. 257Lr deduced T1/2. Experimental levels in 245Pu, 247Cm, 249Cf, 251Fm, 253No, 255Rf compared with published calculations for the same nuclei (plus 257Sg).
doi: 10.1140/epja/i2016-16192-0
2016HE15 Eur.Phys.J. A 52, 328 (2016) F.P.Hessberger, S.Antalic, D.Ackermann, B.Andel, M.Block, Z.Kalaninova, B.Kindler, I.Kojouharov, M.Laatiaoui, B.Lommel, A.K.Mistry, J.Piot, M.Vostinar Investigation of electron capture decay of 258Db and α decay of 258Rf RADIOACTIVITY 258Db(EC), 258Rf(α), (SF); measured 258Db K-shell X-rays, Eγ, Iγ(t), CE, (X-ray)(CE)-coin; measured 258Rf spontaneous fission, Eα, Iα; measured delayed coin between 258Db and 258Rf decays; deduced isomeric states, T1/2; deduced 258Rf α branch decay, α branching ratio, mass excess using 254No mass excess. Halflives compared with those measured by different types of correlation, mass excess compared with systematics for e-e nuclei.
doi: 10.1140/epja/i2016-16328-2
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
2016WE07 Nature(London) 533, 47 (2016) L.v.d.Wense, B.Seiferle, M.Laatiaoui, J.B.Neumayr, H.-J.Maier, H.-F.Wirth, C.Mokry, J.Runke, Kl.Eberhardt, C.E.Dullmann, N.G.Trautmann, P.G.Thirolf Direct detection of the 229Th nuclear clock transition RADIOACTIVITY 229Th(IT), (α); measured decay products, Eα, Iα; deduced isomer T1/2.
doi: 10.1038/nature17669
2015BA55 Nucl.Phys. A944, 492 (2015) H.Backe, W.Lauth, M.Block, M.Laatiaoui Prospects for laser spectroscopy, ion chemistry and mobility measurements of superheavy elements in buffer-gas traps RADIOACTIVITY 240Am(SF); measured fission isomers using single-atom laser spectroscopy; deduced isotope shift, isomer shift.
doi: 10.1016/j.nuclphysa.2015.07.002
2015KA24 Phys.Rev. C 92, 014321 (2015) Z.Kalaninova, S.Antalic, F.P.Hessberger, D.Ackermann, B.Andel, B.Kindler, M.Laatiaoui, B.Lommel, J.Maurer Levels in 223Th populated by α decay of 227U RADIOACTIVITY 227U(α)[from 208Pb(22Ne, 3n), E=104 MeV]; measured reaction products, Eα, Iα, Eγ, Iγ, αγ-coin, αα-correlations at GSI facility. 223Th; deduced levels, J, π, α feedings, α hindrance factors, conversion coefficients, multipolarities. Monte Carlo simulation of α spectrum using GEANT4 code.
doi: 10.1103/PhysRevC.92.014321
2015WE04 Eur.Phys.J. A 51, 29 (2015) L.v.d.Wense, B.Seiferle, M.Laatiaoui, P.G.Thirolf Determination of the extraction efficiency for 233U source α recoil ions from the MLL buffer-gas stopping cell
doi: 10.1140/epja/i2015-15029-8
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
2013TH03 Acta Phys.Pol. B44, 391 (2013) P.G.Thirolf, L.v.d.Wense, D.Kalb, M.Laatiaoui Towards an All-optical Access to the Lowest Nuclear Excitation in 229mTh
doi: 10.5506/APhysPolB.44.391
2007BA58 Eur.Phys.J. D 45, 99 (2007) H.Backe, P.Kunz, W.Lauth, A.Dretzke, R.Horn, T.Kolb, M.Laatiaoui, M.Sewtz, D.Ackermann, M.Block, F.Herfurth, F.P.Hessberger, S.Hofmann, R.Mann Towards optical spectroscopy of the element nobelium (Z = 102) in a buffer gas cell
doi: 10.1140/epjd/e2007-00198-1
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