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NSR database version of May 24, 2024.

Search: Author = H.Bokemeyer

Found 15 matches.

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2001DE11      J.Phys.(London) G27, L29 (2001)

F.W.N.de Boer, K.Bethge, H.Bokemeyer, R.van Dantzig, J.van Klinken, V.Mironov, K.A.Muller, K.E.Stiebing

Further Search for a Neutral Boson with a Mass Around 9 MeV/c2

NUCLEAR REACTIONS 7Li(p, e+e-), E=1.1 MeV; 11B(d, ne+e-), E=1.6 MeV; measured electron-positron sum energies, angular correlations; deduced possible neutral boson.

doi: 10.1088/0954-3899/27/4/102
Citations: PlumX Metrics


2000ST19      Eur.Phys.J. A 8, 87 (2000)

K.E.Stiebing, K.A.Muller, J.Baumann, K.Bethge, J.Bernhardt, H.Bokemeyer, H.Folger, O.Frohlich, O.Hohn, G.Kavermann, G.Lambrinidis, A.Muller, J.Peter, S.Runkel, L.Schmidt, H.Schmidt-Bocking, P.Senger, P.Thee, J.Ullrich

On the Spectroscopy of Atomic Electrons (Positrons) in the Energy Range of 10 to 50 MeV from Heavy-Ion Collisions at Intermediate Energies

NUCLEAR REACTIONS Pb(Pb, X), E=60 MeV/nucleon; calculated electron, positron spectra, detector design characteristics. Monte Carlo simulations.

RADIOACTIVITY 12B(β-) [from 11B(d, p)]; measured Eβ, Iβ. Test of prototype detector.

doi: 10.1007/s100500070122
Citations: PlumX Metrics


1997DE46      J.Phys.(London) G23, L85 (1997)

F.W.N.de Boer, R.van Dantzig, J.van Klinken, K.Bethge, H.Bokemeyer, A.Buda, K.A.Muller, K.E.Stiebing

Excess in Nuclear e+e- Pairs Near 9 MeV/c2 Invariant Mass

NUCLEAR REACTIONS 7Li, 11B(p, e+e-), E not given; 12C(p, p'e+e), E=20 MeV; 19F(p, γ), E=5.2 MeV; 11B(p, e+e-), E=98 MeV; analyzed pair production data; deduced evidence for short-lived neutral boson. Other data input.

doi: 10.1088/0954-3899/23/11/001
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1997DI05      Z.Phys. A358, 11 (1997)

E.Ditzel, J.M.Hoogduin, H.Backe, J.Baumann, F.W.N.de Boer, H.Bokemeyer, M.Debowski, R.Ganz, J.Gerl, T.Happ, M.Kaspar, J.van Klinken, T.Kroll, R.Kulessa, I.Peter, P.Salabura, H.Schaffner, S.Schremmer, K.Vetter, H.J.Wollersheim, H.Xie

Absence of E0 Transitions Around 1.8 MeV After Collisions of 238U with 181Ta

NUCLEAR REACTIONS 181Ta(238U, X), E=6.0 MeV/nucleon; measured e- spectra, e-(recoil)-coin. 181Ta, 238U deduced σ upper limits for E0 decays. Mini-orange spectrometers, PPAC, Doppler-corrected e- spectra.

doi: 10.1007/s002180050270
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1997ST13      Z.Phys. A357, 441 (1997)

J.Stroth, H.Backe, M.Begemann-Blaich, K.Bethge, H.Bokemeyer, M.Dahlinger, W.Konen, P.Kosmadakis, S.Mojumder, P.Senger, K.Stiebing

Investigation of the Dynamics of Dissipative U + Au Collisions with δ-Electron Spectroscopy

NUCLEAR REACTIONS 197Au(238U, X), E=8.65 MeV/nucleon; measured (e)(δ-electron)-coin; deduced dissipative collisions dynamics, contact time dependence on total kinetic energy loss.

doi: 10.1007/s002180050265
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1996DE51      Phys.Lett. 388B, 235 (1996)

F.W.N.de Boer, O.Frohlich, K.E.Stiebing, K.Bethge, H.Bokemeyer, A.Balanda, A.Buda, R.van Dantzig, Th.W.Elze, H.Folger, J.van Klinken, K.A.Muller, K.Stelzer, P.Thee, M.Waldschmidt

A Deviation in Internal Pair Conversion

NUCLEAR REACTIONS 7Li, 11B(p, e+e-), E not given; measured sum energy spectra, pairs yield, e+e-(θ). 12C, 8Be transition deduced M1 angular correlation deviates from internal pair conversion.

doi: 10.1016/S0370-2693(96)01311-1
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1996DI07      Nucl.Instrum.Methods Phys.Res. A376, 428 (1996)

E.Ditzel, J.M.Hoogduin, H.Backe, F.W.N.de Boer, H.Bokemeyer, M.Debowski, J.van Klinken, P.Salabura, H.J.Wollersheim, H.Xie

Doppler-Corrected Spectroscopy of Conversion Electrons with Mini-Oranges After Heavy-Ion Collisions

NUCLEAR REACTIONS 181Ta(238U, 238U'), E=6 MeV/nucleon; measured (projectile)(ce)-, (recoil ejectile)(ce)-coin; deduced precise Doppler corrections for conversion electron emitted with specific solid angle. System of 4 Mini-Orange spectrometers.

doi: 10.1016/0168-9002(96)00260-4
Citations: PlumX Metrics


1996GA31      Phys.Lett. 389B, 4 (1996)

R.Ganz, R.Bar, A.Balanda, J.Baumann, W.Berg, K.Bethge, A.Billmeier, H.Bokemeyer, H.Fehlhaber, H.Folger, J.Foryciar, O.Frohlich, O.Hartung, M.Rhein, M.Samek, P.Salabura, W.Schon, D.Schwalm, K.E.Stiebing, P.Thee, and the EPoS II Collaboration

Search for e+e- Pairs with Narrow Sum-Energy Distributions in Heavy-Ion Collisions

NUCLEAR REACTIONS 181Ta(238U, X), E=5.92-6.06 MeV/nucleon; 232Th(238U, X), E=5.68-5.95 MeV/nucleon; measured e+e- sum-energy spectra, σ(θ).

doi: 10.1016/S0370-2693(96)01286-5
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1996HO18      Phys.Lett. 384, 43 (1996)

J.M.Hoogduin, E.Ditzel, A.Balanda, F.W.N.de Boer, H.Bokemeyer, J.Gerl, K.Heyde, J.van Klinken, A.Krasznahorkay, P.Salabura, H.J.Wollersheim

On the Two First Excited K = 0 Bands in 238U and 240Pu

NUCLEAR REACTIONS 238U(α, α'), (α, 2n), E=25 MeV; 181Ta(238U, 238U'), E=6 MeV/nucleon; analyzed I(ce). 238U, 240Pu deduced band structure.

doi: 10.1016/0370-2693(96)00798-8
Citations: PlumX Metrics


1996SC45      Acta Phys.Pol. B27, 2959 (1996)

W.Schon, H.Bokemeyer, W.Koenig, V.Metag, for the HADES Collaboration

Simulation of Recoiless Production of ω Mesons


1995BA11      Nucl.Phys. A583, 237c (1995)

R.Bar, A.Balanda, J.Baumann, W.Berg, K.Bethge, H.Bokemeyer, H.Folger, O.Frohlich, R.Ganz, O.Hartung, M.Samek, P.Salabura, W.Schon, D.Schwalm, K.Stiebing, P.Thee, E.Berdermann, F.Heine, S.Heinz, O.Joeres, P.Kienle, I.Koenig, W.Koenig, C.Kozhuharov, U.Leinberger, A.Schroter, H.Tsertos, and the EPOS/ORANGE Collaborations

Experiments on e+e--Line Emission in HI Collisions

NUCLEAR REACTIONS 238U, 206,208Pb, 181Ta, 232Th(238U, X), E not given; measured pair-production sum-energy lines. 209Bi(208Pb, X), E=6.5, 6.9 MeV/nucleon; 206Pb(238U, X), E=5.8 MeV/nucleon; measured Doppler shifted Eγ, Iγ in pair production.

doi: 10.1016/0375-9474(94)00666-B
Citations: PlumX Metrics


1989BO40      Nucl.Instrum.Methods Phys.Res. A282, 40 (1989)

H.Bokemeyer, H.Folger

The Part of Targets in Heavy-Ion Positron Spectroscopy

NUCLEAR REACTIONS 208Pb(136Xe, X), E=4.3 MeV/nucleon; 248Cm(208Pb, X), E=5.4 MeV/nucleon; measured X-ray spectra. 248Cm(238U, X), E=6.05 MeV/nucleon; 248Cm(232Th, X), E=6.02 MeV/nucleon; 238U(238U, X), E=5.88 MeV/nucleon; 238U(232Th, X), E=5.83 MeV/nucleon; 232Th(232Th, X), E=5.75 MeV/nucleon; 181Ta(232Th, X), E=5.78 MeV/nucleon; measured β+ spectra.

doi: 10.1016/0168-9002(89)90107-1
Citations: PlumX Metrics


1986DE25      Phys.Lett. 180B, 4 (1986)

F.W.N.De Boer, K.Abrahams, A.Balanda, H.Bokemeyer, R.van Dantzig, J.F.W.Jansen, B.Kotlinski, M.J.A.De Voigt, J.van Klinken

Search for Short-Lived Axions in a Nuclear Isoscalar Transition

NUCLEAR REACTIONS 10B(p, p'), E=7 MeV; measured Eγ, Iγ, pair spectra. 10B transition deduced no axion events. Fourfold mini-orange spectrometer.

doi: 10.1016/0370-2693(86)90123-1
Citations: PlumX Metrics


1985VI08      Z.Phys. A322, 547 (1985)

P.Vincent, H.Bokemeyer, H.Emling, J.S.Greenberg, E.Grosse, D.Schwalm

Selective Observation of Continuum Transitions in the Pb + Pb Quasimolecule

NUCLEAR REACTIONS 208Pb(208Pb, X), E=4.8 MeV/nucleon; measured E X-ray, I X-ray, (X-ray)(X-ray)-coin; deduced double K-shell ionization σ.

doi: 10.1007/BF01415133
Citations: PlumX Metrics


1975BO38      Z.Phys. A274, 305 (1975)

H.Bokemeyer, K.Wohlfahrt, E.Kankeleit, D.Eckardt

Mossbauer Conversion Spectroscopy: Measurements on the First Excited States of 180,182W and 145Pm

NUCLEAR MOMENTS 180,182W, 145Pm; measured Mossbauer ce-spectra. 180,182W deduced quadrupole ratio.

doi: 10.1007/BF01434040
Citations: PlumX Metrics


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