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NSR database version of April 27, 2024.

Search: Author = R.Hingmann

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1989HE03      Nucl.Instrum.Methods Phys.Res. A274, 522 (1989)

F.P.Hessberger, S.Hofmann, G.Munzenberg, K.-H.Schmidt, P.Armbruster, R.Hingmann

Influence of Energy Summing of α-Particles and Conversion Electrons on the Shapes of α-Spectra in the Region of the Heaviest Nuclei

RADIOACTIVITY ²¹⁵Th, ²¹³Ra(α) [from ¹⁷²Yb, ¹⁷⁰Er(⁴⁸Ca, X), E=4.7 MeV/nucleon; ¹⁷⁰Er(⁵⁰Ti, X), E=4.68 MeV/nucleon]; ²⁵⁵Rf(α) [from ²⁰⁷Pb(⁵⁰Ti, 4n), E=4.85 MeV/nucleon]; ²⁵¹No [from ²⁵⁵Lr(α-decay)]; ²⁴⁷Fm(α) [from ²⁵¹No(α-decay)]; measured E(α), I(α), E X-ray, I X-ray, E(γ), I(γ), α(X-ray)-, αγ-coin. ²⁵¹No, ²⁴⁷Fm, ²⁵⁵Rf, ²⁴³Cf levels deduced Eα, α-branching, reduced α-widths.

doi: 10.1016/0168-9002(89)90184-8
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1987HI01      Phys.Rev.Lett. 58, 759 (1987)

R.Hingmann, W.Kuhn, V.Metag, R.Muhlhans, R.Novotny, A.Ruckelshausen, W.Cassing, H.Emling, R.Kulessa, H.J.Wollersheim, B.Haas, J.P.Vivien, A.Boullay, H.Delagrange, H.Doubre, C.Gregoire, Y.Schutz

γ Rays from Peripheral and Central Collisions in the Reaction ⁴⁰Ar + ¹⁵⁸Gd at 44 MeV/Nucleon

NUCLEAR REACTIONS ¹⁵⁸Gd(⁴⁰Ar, X), E=44 MeV/nucleon; measured γ spectra, yields, γ(fragment)-coin, σ(Eγ, θγ); deduced slope parameters, σ, γ-multiplicity, products excitation energies.

doi: 10.1103/PhysRevLett.58.759
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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.

1985HE06      Z.Phys. A321, 317 (1985)

F.P.Hessberger, G.Munzenberg, S.Hofmann, W.Reisdorf, K.H.Schmidt, H.J.Schmidt, P.Armbruster, R.Hingmann, B.Thuma, D.Vermeulen

Study of Evaporation Residues Produced in Reaction of ^207,208Pb with ⁵⁰Ti

RADIOACTIVITY ²⁵⁵Rf, ²⁵⁶Rf(SF), (α), ²⁵⁷Rf(α) [from ^208,207Pb(⁵⁰Ti, xn), E=4.75, 4.85 MeV/nucleon]; measured Eα, Iα, α-, SF-decay T_1/2, α-branching.

NUCLEAR REACTIONS ²⁰⁸Pb(⁵⁰Ti, n), (⁵⁰Ti, 2n), (⁵⁰Ti, 3n), ²⁰⁷Pb(⁵⁰Ti, n), (⁵⁰Ti, 2n), E=4.75, 4.85 MeV/nucleon; measured evaporation residue σ, σ(Eα); deduced reaction mechanism, residue SF activity.

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.

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.

1983HI08      Nucl.Phys. A404, 51 (1983)

R.Hingmann, H.-G.Clerc, C.-C.Sahm, D.Vermeulen, K.-H.Schmidt, J.G.Keller

Evidence for an Isomeric State in ²¹⁶Th

NUCLEAR REACTIONS ¹⁸⁰Hf(⁴⁰Ar, 4n), (⁴⁰Ar, 5n), E=165-200 MeV; measured residuals production σ(E). ¹⁸⁰Hf(⁴⁰Ar, X), E=180 MeV; measured Eα, Iα from evaporation residue decay; deduced evidence for ^216mTh.

RADIOACTIVITY ^216mTh [from ^178,179,180Hf(⁴⁰Ar, xn), E=165-200 MeV]; measured Eα, T_1/2; deduced Iα, Iγ. Comparison with ^217mPa decay.

doi: 10.1016/0375-9474(83)90413-X
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1983HI12      Z.Phys. A313, 141 (1983)

R.Hingmann, H.-G.Clerc, C.-C.Sahm, D.Vermeulen, K.-H.Schmidt, J.G.Keller

Identification of ²²²U and ²²¹Pa by α-Correlation Chains

RADIOACTIVITY ²²²U(α) [from W(⁴⁰Ar, 4n), E=4.5 MeV/nucleon]; ²²¹Pa(α) [from ¹⁸⁶W(⁴⁰Ar, 4np), E=4.72 MeV/nucleon]; measured αα-correlation; deduced T_1/2.

NUCLEAR REACTIONS W(⁴⁰Ar, 4n), E=4.5 MeV/nucleon; ¹⁸⁶W(⁴⁰Ar, 4np), E=4.72 MeV/nucleon; measured αα-correlation; deduced evidence for ²²²U, ²²¹Pa.

doi: 10.1007/BF02115854
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1983KE01      Z.Phys. A311, 243 (1983)

J.G.Keller, H.-G.Clerc, K.-H.Schmidt, Y.K.Agarwal, F.P.Hessberger, R.Hingmann, G.Munzenberg, W.Reisdorf, C.C.Sahm

Observation of Radiative Capture in the Reaction ⁹⁰Zr + ⁹⁰Zr

NUCLEAR REACTIONS ⁹⁰Zr(⁹⁰Zr, X), E=351, 360 MeV; measured Eα, Iα following evaporation residue decay; deduced heavy system radiative capture.

doi: 10.1007/BF01415109
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1982HI14      Z.Phys. A309, 27 (1982)

R.Hingmann, H.-G.Clerc, C.-C.Sahm, D.Vermeulen, K.-H.Schmidt, J.G.Keller

Alpha Decay Properties of ¹⁹⁹Rn and ^199mRn

NUCLEAR REACTIONS ⁸⁶Kr(¹¹⁶Sn, X), (¹¹⁶Sn, 2n), (¹¹⁶Sn, 3n), E=345-385 MeV; measured residual production σ vs E, (evaporation residue)(α)(t), αα(t). ^199m,199Rn levels deduced α-decay T_1/2, decay characteristics, possible J, π. Correlation analysis, shell model.

doi: 10.1007/BF01420147
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