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NSR database version of April 27, 2024.

Search: Author = W.Hartmann

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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD8036.

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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0944. Data from this article have been entered in the XUNDL database. For more information, click here.

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
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Data from this article have been entered in the XUNDL database. For more information, click here.

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 T_1/2, Q-values. A fast data readout technique, comparison with FRDM95 and HFB26 calculations.

doi: 10.1103/PhysRevLett.115.242502
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Data from this article have been entered in the XUNDL database. For more information, click here.

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 T_1/2. Comparison with experimental data.

doi: 10.1103/PhysRevLett.112.172501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0731. Data from this article have been entered in the XUNDL database. For more information, click here.

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
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0910. Data from this article have been entered in the XUNDL database. For more information, click here.

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, T_1/2.

RADIOACTIVITY ^288,289Fl, ²⁸⁵Cn(α), ²⁸¹Ds(α), ²⁸⁴Cn, ²⁸¹Ds, ²⁷⁷Hs(SF); measured reaction products, Eα, Iα; deduced α-decay chains, T_1/2.

doi: 10.1103/PhysRevLett.104.252701
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2008KI10      Nucl.Instrum.Methods Phys.Res. A590, 126 (2008)

B.Kindler, D.Ackermann, W.Hartmann, F.P.Hessberger, S.Hofmann, A.Hubner, B.Lommel, R.Mann, J.Steiner

Uranium fluoride and metallic uranium as target materials for heavy-element experiments at SHIP

doi: 10.1016/j.nima.2008.02.031
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2003LO05      J.Radioanal.Nucl.Chem. 257, 161 (2003)

B.Lommel, W.Hartmann, S.Hofmann, B.Kindler, J.Klemm, J.Steiner, K.Tinschert

Stable isotopes for heavy element production

doi: 10.1023/A:1024726200472
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1995FO21      Nucl.Instrum.Methods Phys.Res. A362, 64 (1995)

H.Folger, W.Hartmann, F.P.Hessberger, S.Hofmann, J.Klemm, G.Munzenberg, V.Ninov, W.Thalheimer, P.Armbruster

Developments of ¹⁷⁰Er, ^{204,206,207,208}Pb and ²⁰⁹Bi Target Wheels for Reaction Studies and Synthesis of Heaviest Elements

doi: 10.1016/0168-9002(95)00527-7
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1990HE15      Ann.Phys.(Paris) 15, 39 (1990)

W.Heil, J.Ahrens, H.G.Andresen, A.Bornheimer, D.Conrath, K.-J.Dietz, W.Gasteyer, H.-J.Gessinger, W.Hartmann, J.Jeth-Wa, H.-J.Kluge, H.Kessler, T.Kettner, L.Koch, F.Neugebauer, R.Neuhausen, E.W.Otten, E.Reichert, F.P.Schafer, B.Wagner

Measurement of the Parity Violation in the Quasi-Elastic Scattering of Polarized Electrons from ⁹Be

NUCLEAR REACTIONS ⁹Be(polarized e, e'X), E=300 MeV; measured parity violating asymmetry; deduced Weinberg angle. Model independent electron-nucleon coupling constants.

1987AH06      Helv.Phys.Acta 60, 738 (1987)

J.Ahrens, H.G.Andresen, H.J.Gessinger, W.Hartmann, W.Heil, H.J.Kluge, R.Neuhausen, E.W.Otten, E.Reichert, F.P.Schafer, B.Wagner

Measurement of the Parity Violation in the Quasi-Free Scattering of Polarized Electrons from ⁹Be

NUCLEAR REACTIONS ⁹Be(polarized e, e'), E=300 MeV; measured parity violating helicity asymmetry; deduced weak, neutral current, nucleon model independent weak coupling constants.

1975AB02      Phys.Lett. 51A, 169 (1975)

J.Abele, M.Baumann, W.Hartmann

g(J)-Factors and Magnetic hfs Interaction Constants in the 6²P₃/₂- and 8²P₃/₂-States of ¹³³Cs

NUCLEAR MOMENTS ¹³³Cs; measured g, hfs coupling constants.

doi: 10.1016/0375-9601(75)90216-9
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1972BA71      Z.Phys. 253, 127 (1972)

M.Baumann, W.Hartmann, J.Scheuch

Determination of the g(J)-Factor in the 7²P₃/₂-State of ¹³³Cs by Optical Double Resonance in a Strong Magnetic Field

NUCLEAR MOMENTS ¹³³Cs; measured a, g(J). Optical double resonance.

doi: 10.1007/BF01379767
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1970HA59      Z.Phys. 240, 323 (1970)

W.Hartmann

Die Hyperfeinstruktur des 3²P₁/₂-Zustandes von Natrium im starken Magnetfeld

NUCLEAR MOMENTS ²³Na; measured a. Optical double resonance technique.

doi: 10.1007/BF01395585
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1966BA20      Z.Physik 194, 270 (1966)

M.Baumann, W.Hartmann, H.Kruger, A.Oed

Die Hyperfeinstruktur des Angeregten 3²P₃/₂-Zustandes von Natrium

NUCLEAR STRUCTURE ²³Na; measured not abstracted; deduced nuclear properties.

doi: 10.1007/BF01571251
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