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NSR database version of April 26, 2024.

Search: Author = H.J.Schott

Found 32 matches.

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2016HO09      Eur.Phys.J. A 52, 180 (2016)

S.Hofmann, S.Heinz, R.Mann, J.Maurer, G.Munzenberg, S.Antalic, W.Barth, H.G.Burkhard, L.Dahl, K.Eberhardt, R.Grzywacz, J.H.Hamilton, R.A.Henderson, J.M.Kenneally, B.Kindler, I.Kojouharov, R.Lang, B.Lommel, K.Miernik, D.Miller, K.J.Moody, K.Morita, K.Nishio, A.G.Popeko, J.B.Roberto, J.Runke, K.P.Rykaczewski, S.Saro, C.Scheidenberger, H.J.Schott, D.A.Shaughnessy, M.A.Stoyer, P.Thorle-Pospiech, K.Tinschert, N.Trautmann, J.Uusitalo, A.V.Yeremin

Review of even element super-heavy nuclei and search for element

doi: 10.1140/epja/i2016-16180-4
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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, T_1/2.

doi: 10.1140/epja/i2007-10373-x
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0895. Data from this article have been entered in the XUNDL database. For more information, click here.

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, T_1/2.

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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1647. Data from this article have been entered in the XUNDL database. For more information, click here.

2006HO29      J.Nucl.Radiochem.Sci. 7, R25 (2006)

S.Hofmann, D.Ackermann, S.Antalic, H.G.Burkhard, R.Dressler, F.P.Hessberger, 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

Study of Superheavy Elements at the GSI-SHIP

NUCLEAR REACTIONS ²³⁸U(⁴⁸Ca, X)²⁸⁶Cn, E=34.5 MeV; measured reaction products; deduced σ, T_1/2. Comparison with available data. SHIP separator.

doi: 10.14494/jnrs2000.7.R25
Citations: PlumX Metrics

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, T_1/2. ^262,264Sg, ²⁶¹Rf(SF) [from ²³⁸U(³⁰Si, xn) and subsequent decay]; measured T_1/2, fission fragments kinetic energy.

doi: 10.1140/epja/i2006-10091-y
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2004OG02      Eur.Phys.J. A 19, 3 (2004)

Yu.Ts.Oganessian, A.V.Yeremin, A.G.Popeko, O.N.Malyshev, A.V.Belozerov, G.V.Buklanov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, S.Hofmann, M.G.Itkis, A.P.Kabachenko, B.Kindler, G.Munzenberg, R.N.Sagaidak, S.Saro, H.-J.Schott, B.Streicher, A.V.Shutov, A.I.Svirikhin, G.K.Vostokin

Second experiment at VASSILISSA separator on the synthesis of the element 112

NUCLEAR REACTIONS ²³⁸U(⁴⁸Ca, 3n), E ≈ 232 MeV; measured production σ. Mass separator, recoil-decay tagging.

RADIOACTIVITY ²⁸³Cn(SF) [from ²³⁸U(⁴⁸Ca, 3n)]; measured T_1/2.

doi: 10.1140/epja/i2003-10113-4
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2004OG06      Nucl.Phys. A734, 196 (2004)

Yu.Ts.Oganessian, A.V.Yeremin, A.G.Popeko, O.N.Malyshev, A.V.Belozerov, G.Buklanov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, S.Hofmann, M.G.Itkis, A.P.Kabachenko, B.Kindler, G.Munzenberg, R.N.Sagaidak, S.Saro, H.-J.Schott, B.Streicher, A.V.Shutov, A.I.Svirikhin, G.K.Vostokin

In-Flight Separation and Mass Selection of Heavy Evaporation Residues

NUCLEAR REACTIONS ²³⁸U(⁴⁸Ca, 3n), E=234 MeV; measured production σ. Mass separator.

RADIOACTIVITY ²⁸³Cn(SF) [from ²³⁸U(⁴⁸Ca, 3n)]; measured T_1/2. Mass-separated source.

doi: 10.1016/j.nuclphysa.2004.01.033
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2003DU27      Czech.J.Phys. (Supplement) 53, A291 (2003)

Ch.E.Dullmann, R.Dressler, B.Eichler, H.W.Gaggeler, F.Glaus, D.T.Jost, D.Piguet, S.Soverna, A.Turler, W.Bruchle, R.Eichler, E.Jager, V.Pershina, M.Schadel, B.Schausten, E.Schimpf, H.-J.Schott, G.Wirth, K.Eberhardt, P.Thorle, N.Trautmann, T.N.Ginter, K.E.Gregorich, D.C.Hoffman, U.W.Kirbach, D.M.Lee, H.Nitsche, J.B.Patin, R.Sudowe, P.M.Zielinski, S.N.Timokhin, A.B.Yakushev, A.Vahle, Z.Qin

First chemical investigation of hassium (Hs, Z=108)

RADIOACTIVITY ^269,270Hs(α); measured Eα, Iα.

doi: 10.1007/s10582-003-0037-4
Citations: PlumX Metrics

2003TU05      Eur.Phys.J. A 17, 505 (2003)

A.Turler, Ch.E.Dullmann, H.W.Gaggeler, U.W.Kirbach, A.B.Yakushev, M.Schadel, W.Bruchle, R.Dressler, K.Eberhardt, B.Eichler, R.Eichler, T.N.Ginter, F.Glaus, K.E.Gregorich, D.C.Hoffman, E.Jager, D.T.Jost, D.M.Lee, H.Nitsche, J.B.Patin, V.Pershina, D.Piguet, Z.Qin, B.Schausten, E.Schimpf, H.-J.Schott, S.Soverna, R.Sudowe, P.Thorle, S.N.Timokhin, N.Trautmann, A.Vahle, G.Wirth, P.M.Zielinski

On the decay properties of ²⁶⁹Hs and indications for the new nuclide ²⁷⁰Hs

NUCLEAR REACTIONS ²⁴⁸Cm(²⁶Mg, xn), E=143.7-146.8 MeV; measured residual nucleus decay; deduced evidence for ^269,270Hs. Chemical separation.

RADIOACTIVITY ^269,270Hs, ^265,266Sg, ²⁶¹Rf, ²⁵⁷No(α) [from ²⁴⁸Cm(²⁶Mg, xn) and subsequent decay]; measured Eα, T_1/2. ^261,262Rf(SF); measured fission fragment energies.

doi: 10.1140/epja/i2002-10163-0
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2002DU21      Nature(London) 418, 859 (2002)

Ch.E.Dullmann, W.Bruchle, R.Dressler, K.Eberhardt, B.Eichler, R.Eichler, H.W.Gaggeler, T.N.Ginter, F.Glaus, K.E.Gregorich, D.C.Hoffman, E.Jager, D.T.Jost, U.W.Kirbach, D.M.Lee, H.Nitsche, J.B.Patin, V.Pershina, D.Piguet, Z.Qin, M.Schadel, B.Schausten, E.Schimpf, H.-J.Schott, S.Soverna, R.Sudowe, P.Thorle, S.N.Timokhin, N.Trautmann, A.Turler, A.Vahle, G.Wirth, A.B.Yakushev, P.M.Zielinski

Chemical investigation of hassium (element 108)

RADIOACTIVITY ^269,270Hs, ^265,266Sg, ²⁶¹Rf(α) [from ²⁴⁸Cm(²⁶Mg, xn) and subsequent decay]; measured Eα. Chemical properties of hassium discussed.

doi: 10.1038/nature00980
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2001HO06      Eur.Phys.J. A 10, 5 (2001)

S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, P.Cagarda, S.Cwiok, B.Kindler, J.Kojouharova, B.Lommel, R.Mann, G.Munzenberg, A.G.Popeko, S.Saro, H.J.Schott, A.V.Yeremin

The New Isotope ²⁷⁰110 and Its Decay Products ²⁶⁶Hs and ²⁶²Sg

NUCLEAR REACTIONS ²⁰⁷Pb(⁶⁴Ni, n), E=317 MeV; measured Eα, αα-, (recoil)α-coin following residual nucleus decay; deduced production σ, evidence for ²⁷⁰Ds, ²⁶⁶Hs, ²⁶²Sg. Mass separator.

RADIOACTIVITY ²⁷⁰Ds, ²⁶⁶Hs, ²⁶²Sg(α) [from ²⁰⁷Pb(⁶⁴Ni, n)]; measured Eα, T_1/2.

doi: 10.1007/s100500170137
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0896.

1997HE29      Z.Phys. A359, 415 (1997)

F.P.Hessberger, S.Hofmann, V.Ninov, P.Armbruster, H.Folger, G.Munzenberg, H.J.Schott, A.G.Popeko, A.V.Yeremin, A.N.Andreyev, S.Saro

Spontaneous Fission and Alpha-Decay Properties of Neutron Deficient Isotopes ^257-253104 and ²⁵⁸106

RADIOACTIVITY ^253,254Rf, ²⁵⁸Sg(SF), ^255,256,257Rf(α) [from ^204,206,208Pb(⁵⁰Ti, xn), E=4.8-5.1 MeV/nucleon; ²⁰⁹Bi(⁵¹V, X), E=4.77-4.99 MeV/nucleon]; measured Eα, T_1/2. ²⁵⁷Rf, ²⁵³No deduced levels.

NUCLEAR REACTIONS ^204,206,208Pb(⁵⁰Ti, xn), E=4.8-5.1 MeV/nucleon; ²⁰⁹Bi(⁵¹V, X), E=4.77-4.99 MeV/nucleon; measured Eα, Iα, residuals fission fragments; deduced evidence for ²⁵⁸Sg, ^253,254Rf.

doi: 10.1007/s002180050422
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1996HO13      Z.Phys. A354, 229 (1996)

S.Hofmann, V.Ninov, F.P.Hessberger, P.Armbruster, H.Folger, G.Munzenberg, H.J.Schott, A.G.Popeko, A.V.Yeremin, S.Saro, R.Janik, M.Leino

The New Element 112

NUCLEAR REACTIONS ²⁰⁸Pb(⁷⁰Zn, X), E=344 MeV; measured Eα, Iα; deduced ²⁷⁷Cn production σ.

RADIOACTIVITY ²⁷⁷Cn(α) [from ²⁰⁸Pb(⁷⁰Zn, X), E=344 MeV]; measured Eα, Iα, T_1/2, two paralled running decay chain evidence.

doi: 10.1007/s002180050036
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0893.

1996RU18      Nucl.Instrum.Methods Phys.Res. A369, 23 (1996)

J.Ruzicka, S.Saro, V.P.Zrelov, P.V.Zrelov, E.D.Lapchik, H.Geissel, H.Irnich, C.Kozhuharov, A.Magel, G.Munzenberg, F.Nickel, C.Scheidenberger, H.-J.Schott, W.Schwab, T.Stohlker, B.Voss

Investigation of Possible Applications of Cherenkov Technique to Measure Average Energy of Beams of Relativistic ₇₉¹⁹⁷Au Nuclei in Energy Range 0.64-0.99 GeV/u

doi: 10.1016/0168-9002(95)00596-X
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1996SA52      Nucl.Instrum.Methods Phys.Res. A381, 520 (1996)

S.Saro, R.Janik, S.Hofmann, H.Folger, F.P.Hessberger, V.Ninov, H.J.Schott, A.P.Kabachenko, A.G.Popeko, A.V.Yeremin

Large Size Foil-Microchannel Plate Timing Detectors

NUCLEAR REACTIONS ²⁰⁸Pb(⁷⁰Zn, X), E not given; measured residual nuclei energy vs flight time; deduced detector characteristics. Multistrip Si array, kinematic separator, tof.

doi: 10.1016/S0168-9002(96)00651-1
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1995HO03      Z.Phys. A350, 277 (1995)

S.Hofmann, V.Ninov, F.P.Hessberger, P.Armbruster, H.Folger, G.Munzenberg, H.J.Schott, A.G.Popeko, A.V.Yeremin, A.N.Andreyev, S.Saro, R.Janik, M.Leino

Production and Decay of ²⁶⁹Ds

NUCLEAR REACTIONS ²⁰⁸Pb(⁵⁰Ti, X), E=4.52-5.1 MeV/nuclon; ²⁰⁸Pb(⁶²Ni, X), E=311 MeV; ²⁰⁸Pb(⁵⁸Fe, X), E not given; measured αα-coin, production σ for ²⁶⁹Ds.

RADIOACTIVITY ²⁶⁹Ds(α) [from ²⁰⁸Pb(⁶²Ni, nX), E=311 MeV]; measured αα-coin; deduced T_1/2, Eα.

doi: 10.1007/BF01291181
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1995HO04      Z.Phys. A350, 281 (1995)

S.Hofmann, V.Ninov, F.P.Hessberger, P.Armbruster, H.Folger, G.Munzenberg, H.J.Schott, A.G.Popeko, A.V.Yeremin, A.N.Andreyev, S.Saro, R.Janik, M.Leino

The New Element 111

NUCLEAR REACTIONS ²⁰⁸Bi(⁶⁴Ni, X), E=318, 320 MeV; measured Eα, Iα; deduced production σ for ²⁷²Rg.

RADIOACTIVITY ²⁶⁸Mt, ²⁶⁴Bh, ²⁷²Rg(α) [from ²⁰⁹Bi(⁶⁴Ni, X), E=318, 320 MeV]; measured Eα, T_1/2; deduced α-decay chain to ²⁶⁰Db, ²⁵⁶Lr.

doi: 10.1007/BF01291182
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1989HO12      Z.Phys. A333, 107 (1989)

S.Hofmann, P.Armbruster, G.Berthes, T.Faestermann, A.Gillitzer, F.P.Hessberger, W.Kurcewicz, G.Munzenberg, K.Poppensieker, H.J.Schott, I.Zychor

The New Nuclei ¹⁶²Os and ¹⁵⁶Ta and the N = 84 Alpha Emitting Isomers

RADIOACTIVITY ¹⁶²Os, ^158,158mW(α); measured Eα, T_1/2. ^155mLu(α); measured Eα. ¹⁵⁶Ta(β⁺); measured T_1/2 lower limit. Sources produced in ¹⁰²Pd, ¹⁰⁶Cd(⁵⁸Ni, X) reactions.

NUCLEAR REACTIONS ¹⁰²Pd(⁵⁸Ni, 3np), E not given; measured residual production σ.

1989MU09      Z.Phys. A333, 163 (1989)

G.Munzenberg, P.Armbruster, S.Hofmann, F.P.Hessberger, H.Folger, J.G.Keller, V.Ninov, K.Poppensieker, A.B.Quint, W.Reisdorf, K.-H.Schmidt, J.R.H.Schneider, H.-J.Schott, K.Summerer, I.Zychor, M.E.Leino, D.Ackermann, U.Gollerthan, E.Hanelt, W.Morawek, D.Vermeulen, Y.Fujita, T.Schwab

Element 107

NUCLEAR REACTIONS ²⁰⁹Bi(⁵⁴Cr, xn), E=4.87-5.07 MeV/nucleon; measured α-spectra; deduced evidence for ^261,262,262mBh, formation σ, reaction σ(E).

RADIOACTIVITY ^261,262,262mBh(α) [from ²⁰⁹Bi(⁵⁴Cr, xn), E=4.87-5.07 MeV/nucleon]; measured α-spectra, αα-correlations, T_1/2; deduced no SF-decay evidence.

1989MU17      Nucl.Instrum.Methods Phys.Res. A282, 28 (1989)

G.Munzenberg, F.P.Hessberger, W.Faust, H.Folger, S.Hofmann, K.-H.Schmidt, H.-J.Schott, P.Armbruster

On-Line Measurements of Target Properties in Experiments for the Investigation of the Heaviest Known Elements

NUCLEAR REACTIONS, ICPND ²⁰⁸Pb(⁵⁰Ti, n), (⁵⁰Ti, 2n), (⁵⁰Ti, 3n), E(cm) ≈ 185-205 MeV; measured residues production σ vs E; deduced cold fusion evidence.

doi: 10.1016/0168-9002(89)90105-8
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1988MU15      Z.Phys. A330, 435 (1988)

G.Munzenberg, S.Hofmann, F.P.Hessberger, H.Folger, V.Ninov, K.Poppensieker, A.B.Quint, W.Reisdorf, H.-J.Schott, K.Summerer, P.Armbruster, M.E.Leino, D.Ackermann, U.Gollerthan, E.Hanelt, W.Morawek, Y.Fujita, T.Schwab, A.Turler

New Results on Element 109

NUCLEAR REACTIONS ²⁰⁹Bi(⁵⁶Fe, X), E=5.17 MeV/nucleon; measured α(evaporation residue)(θ). ²⁶⁶Mt deduced T_1/2, decay features.

1987MU10      Nucl.Instrum.Methods Phys.Res. B26, 294 (1987)

G.Munzenberg, P.Armbruster, G.Berthes, F.P.Hessberger, S.Hofmann, W.Reisdorf, K.-H.Schmidt, H.-J.Schott

The Experimential Work at the Velocity Filter SHIP - Results and Plans

NUCLEAR REACTIONS ¹⁶⁴Dy(⁵⁴Cr, γ), E=250 MeV; ⁹⁶Ru(⁵⁸Ni, X), E=261 MeV; measured evaporation residue energy spectra. ^112,122Sn, ^144,148,154Sm(⁴⁰Ar, X), E(cm)=90-140 MeV; compiled fusion σ(E). ⁹⁰Zr(⁹⁰Zr, X), E=351, 360 MeV; ²⁰⁸Pb(⁵⁴Cr, X), E not given; compiled α-, γ-spectra.

doi: 10.1016/0168-583X(87)90766-X
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1987MU15      Z.Phys. A328, 49 (1987)

G.Munzenberg, P.Armbruster, G.Berthes, H.Folger, F.P.Hessberger, S.Hofmann, J.Keller, K.Poppensieker, A.B.Quint, W.Reisdorf, K.-H.Schmidt, H.-J.Schott, K.Summerer, I.Zychor, M.E.Leino, R.Hingmann, U.Gollerthan, E.Hanelt

Observation of the Isotopes ²⁶⁴108 and ²⁶⁵108

COMPILATION ^{237,238,239,240,241,242,243,244,245,246}Pu, ^{240,241,242,243,244,245,246,247,248,249,250}Cm, ^{242,243,244,245,246,248,249,250,251,252,253,254}Cf; compiled experimental, theoretical mass differences. ^{245,246,247,248,249,250,251,252,254,255,256,257}Fm, ^{251,252,253,254,255,256,257,259}No, ²⁵⁵Rf, ²⁵⁶Rf, ²⁵⁷Rf, ²⁵⁹Rf, ²⁶¹Rf, ²⁵⁹Sg, ²⁶⁰Sg, ²⁶¹Sg, ²⁶³Sg, ²⁶⁵Hs; compiled partial α-decay T_1/2, Q(α), experimental, theoretical mass differences.

RADIOACTIVITY ²⁶⁴Hs, ²⁶⁵Hs(α) [from ^207,208Pb(⁵⁸Fe, n), E=5.04 MeV/nucleon]; measured Eα, Iα. ²⁶⁵Hs deduced α-decay T_1/2, energy. ²⁶⁴Hs deduced α-decay T_1/2.

NUCLEAR REACTIONS ^207,208Pb(⁵⁸Fe, n), E=5.04 MeV/nucleon; measured Eα, Iα; deduced evidence for ²⁶⁴Hs, ²⁶⁵Hs.

1986HE28      J.Less-Common Met. 122, 445 (1986)

F.P.Hessberger, G.Munzenberg, S.Hofmann, P.Armbruster, Y.K.Agarwal, W.Reisdorf, K.Poppensieker, K.-H.Schmidt, J.R.H.Schneider, W.F.W.Schneider, H.J.Schott, C.-C.Sahm, D.Vermeulen, B.Thuma

Experiments on the Synthesis of Neutron-Deficient Isotopes with Atomic Numbers in the Region from Z = 102 to Z = 105

RADIOACTIVITY ^258,257Db, ^256,255Rf, ^254,253Lr(α) [from ^206,208Pb(⁴⁸Ca, xn), E ≈ 15-30 MeV/nucleon; ^207,208Pb, ²⁰⁹Bi(⁵⁰Ti, xn), E=20-35 MeV/nucleon]; measured Eα, T_1/2. ^256,255Rf(SF); measured total kinetic energy release.

NUCLEAR REACTIONS ^206,208Pb(⁴⁸Ca, xn), E ≈ 15-30 MeV/nucleon; ^207,208Pb, ²⁰⁹Bi(⁵⁰Ti, xn)²⁵⁸Db/²⁵⁷Db/²⁵⁵Rf/²⁵⁶Rf/²⁵⁴Lr/²⁵³Lr, E ≈ 20-35 MeV/nucleon; measured evaporation residue, Z=104, 105, Lr isotope production σ(E).

doi: 10.1016/0022-5088(86)90440-6
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1986MU10      Z.Phys. A324, 489 (1986)

G.Munzenberg, P.Armbruster, G.Berthes, H.Folger, F.P.Hessberger, S.Hofmann, K.Poppensieker, W.Reisdorf, B.Quint, K.-H.Schmidt, H.-J.Schott, K.Summerer, I.Zychor, M.E.Leino, U.Gollerthan, E.Hanelt

Evidence for ²⁶⁴108, the Heaviest Known Even-Even Isotope

RADIOACTIVITY ²⁶⁴Hs(α) [from ²⁰⁷Pb(⁵⁸Fe, X), E=5.04 MeV/nucleon]; measured Eα, Iα; deduced Qα, T_1/2, mass excess.

NUCLEAR REACTIONS ²⁰⁷Pb(⁵⁸Fe, X)²⁶⁴Hs, E=5.04 MeV/nucleon; measured Eα, Iα following fusion evaporation residue decay; deduced evidence for ²⁶⁴Hs production σ lower limit.

1985HE22      Z.Phys. A322, 557 (1985)

F.P.Hessberger, G.Munzenberg, S.Hofmann, Y.K.Agarwal, K.Poppensieker, W.Reisdorf, K.-H.Schmidt, J.R.H.Schneider, W.F.W.Schneider, H.J.Schott, P.Armbruster, B.Thuma, C.-C.Sahm, D.Vermeulen

The New Isotopes ²⁵⁸105, ²⁵⁷105, ²⁵⁴Lr and ²⁵³Lr

RADIOACTIVITY ²⁵⁸Db, ²⁵⁷Db, ^253,254Lr(α) [from ²⁰⁹Bi(⁵⁰Ti, X), E=4.65-4.95 MeV/nucleon]; measured Eα, Iα, T_1/2. ²⁵⁸Rf(SF) [from ²⁵⁸Db(EC-decay)]; measured T_1/2, fission fragment total kinetic energy.

NUCLEAR REACTIONS ²⁰⁹Bi(⁵⁰Ti, X), E=4.65-4.95 MeV/nucleon; measured Eα, Iα, evaporation residue σ(E) for one-, two-neutron emission; deduced evidence for ²⁵⁸Db, ²⁵⁷Db, ^253,254Lr.

1985HO29      Nucl.Phys. A447, 335c (1985)

S.Hofmann, P.Armbruster, G.Munzenberg, W.Reisdorf, K.-H.Schmidt, H.G.Burkhard, F.P.Hessberger, H.-J.Schott, Y.K.Agarwal, G.Berthes, U.Gollerthan, H.Folger, R.Hingmann, J.G.Keller, M.E.Leino, P.Lemmertz, M.Montoya, K.Poppensieker, B.Quint, I.Zychor

The Influence of the Surprising Decay Properties of Element 108 on Search Experiments for New Elements

RADIOACTIVITY ²⁶⁰Sg(α) [from ²⁰⁸Pb(⁵⁴Cr, 2n), E=4.92 MeV/nucleon]; measured T_1/2; deduced SF(T_1/2) limit, branching ratio. ²⁵⁶Rf(SF) [from ²⁶⁰Sg(α-decay)]; measured T_1/2. ²⁶⁰Sg, ²⁵⁶Rf deduced mass excess.

doi: 10.1016/0375-9474(86)90615-9
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1985MU11      Z.Phys. A322, 227 (1985)

G.Munzenberg, S.Hofmann, H.Folger, F.P.Hessberger, J.Keller, K.Poppensieker, B.Quint, W.Reisdorf, K.-H.Schmidt, H.J.Schott, P.Armbruster, M.E.Leino, R.Hingmann

The Isotopes of ²⁵⁹106, ²⁶⁰106, and ²⁶¹106

NUCLEAR REACTIONS ²⁰⁸Pb(⁵⁴Cr, n), (⁵⁴Cr, 2n), E=257, 263, 268 MeV; ²⁰⁷Pb(⁵⁴Cr, n), (⁵⁴Cr, 2n), E=262 MeV; measured Eα, Iα, αα-correlation; deduced evidence for ²⁵⁹Sg, ²⁶⁰Sg, ²⁶¹Sg.

RADIOACTIVITY ²⁶¹Sg(α) [from ²⁰⁸Pb(⁵⁴Cr, n), E=257-268 MeV]; measured Eα, Iα, T_1/2; deduced α-branching ratio. ²⁶⁰Sg(α) [from ^207,208Pb(⁵⁴Cr, xn), E=257-268 MeV]; measured Eα, Iα; deduced α-branching ratio, shell effects. ²⁵⁶Rf(SF) [from ²⁶⁰Sg(α-decay)]; measured T_1/2. ²⁵⁹Sg(α) [from ²⁰⁷Pb(⁵⁴Cr, 2n), E=262 MeV]; measured Eα, Iα, T_1/2.

1984MU07      Z.Phys. A315, 145 (1984)

G.Munzenberg, W.Reisdorf, S.Hofmann, Y.K.Agarwal, F.P.Hessberger, K.Poppensieker, J.R.H.Schneider, W.F.W.Schneider, K.-H.Schmidt, H.-J.Schott, P.Armbruster, C.-C.Sahm, D.Vermeulen

Evidence for Element 109 from One Correlated Decay Sequence following the Fusion of ⁵⁸Fe with ²⁰⁹Bi

RADIOACTIVITY ²⁶⁶Mt(SF) [from ²⁰⁹Bi(⁵⁸Fe, X), E=5.15 MeV/nucleon]; measured Eα, Iα, αα-coin, SF-decay.

NUCLEAR REACTIONS ²⁰⁹Bi(⁵⁸Fe, X), E=4.95, 5.05, 5.15 MeV/nucleon; measured σ(fragment) vs mass, Eα, Iα, SF-decay; deduced evidence for compound nucleus ²⁶⁶Mt.

1984MU17      Z.Phys. A317, 235 (1984)

G.Munzenberg, P.Armbruster, H.Folger, F.P.Hessberger, S.Hofmann, J.Keller, K.Poppensieker, W.Reisdorf, K.-H.Schmidt, H.-J.Schott, M.E.Leino, R.Hingmann

The Identification of Element 108

RADIOACTIVITY ²⁶⁵Hs(α) [from ²⁰⁸Pb(⁵⁶Fe, n)]; measured T_1/2, Eα. Correlated decay study of ²⁶¹Sg, ²⁵⁷Rf, surface barrier detectors.

NUCLEAR REACTIONS ²⁰⁸Pb(⁵⁶Fe, n), E=5.02 MeV/nucleon; measured Eα; deduced evidence for ²⁶⁵Hs, production σ. Correlated decay study of ²⁶¹Sg, ²⁵⁷Rf, surface barrier detectors.