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NSR database version of April 27, 2024.

Search: Author = H.G.Burkhard

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

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
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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, T_1/2, ground state quadrupole deformation, quasiparticle excitations, Q-values for different α decay chains. Comparison with other data.

doi: 10.1140/epja/i2012-12062-1
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0938.

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
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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 ^{241,242,243,244}Fm. Comparison with HIVAP calculations.

RADIOACTIVITY ²⁴²Fm(α), (SF), ^241,243,244Fm(EC), (α), (SF) [from ^{204,206,207,208}Pb(⁴⁰Ar, X)]; measured Eα, Eγ, αγ-coin, T_1/2, branching ratio, total kinetic energy, SF hindrance factors. Non observance of ²⁴²Fm. Comparison with T_1/2 calculations. ^{236,237,238,239}Fm(SF); calculated T_1/2.

doi: 10.1140/epja/i2008-10608-4
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Data from this article have been entered in the XUNDL database. For more information, click here.

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
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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.

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
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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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