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NSR database version of April 24, 2024.

Search: Author = M.H.Smedberg

Found 25 matches.

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2002FY01      Nucl.Phys. A701, 394c (2002)

H.O.U.Fynbo, L.Axelsson, J.Aysto, U.C.Bergmann, M.J.G.Borge, L.M.Fraile, A.Honkanen, P.Hornshoj, Y.Jading, A.Jokinen, B.Jonson, I.Martel, I.Mukha, T.Nilsson, G.Nyman, M.Oinonen, K.Riisager, T.Siiskonen, M.H.Smedberg, J.Thaysen, O.Tengblad, F.Wenander, and the ISOLDE Collaboration

Spectroscopy with β2p and β-ν Recoil Shifts

RADIOACTIVITY ^31,32,33Ar(β⁺p), (β⁺2p) [from Ca(p, X)]; measured Ep, pβ-coin; deduced recoil energy shift. ³¹Ar levels deduced J. Mass separator.

doi: 10.1016/S0375-9474(01)01617-7
Citations: PlumX Metrics

2000AL04      Nucl.Phys. A669, 51 (2000)

D.Aleksandrov, T.Aumann, L.Axelsson, T.Baumann, M.J.G.Borge, L.V.Chulkov, J.Cub, W.Dostal, B.Eberlein, Th.W.Elze, H.Emling, H.Geissel, V.Z.Goldberg, A.Grunschloss, M.Hellstrom, J.Holeczek, R.Holzmann, B.Jonson, J.V.Kratz, G.Kraus, R.Kulessa, Y.Leifels, A.Leistenschneider, T.Leth, K.Markenroth, M.Meister, I.Mukha, G.Munzenberg, F.Nickel, T.Nilsson, G.Nyman, B.Petersen, M.Pfutzner, V.Pribora, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, W.Schwab, H.Simon, M.H.Smedberg, J.Stroth, A.Surowiec, O.Tengblad, M.V.Zhukov

Halo Excitations in Fragmentation of ⁶He at 240 MeV/u on Carbon and Lead Targets

NUCLEAR REACTIONS C, Pb(⁶He, 2nα), E=240 MeV/nucleon; measured excitation energy spectra, σ(θ); deduced reaction mechanism features. ⁶He level deduced neutron configuration. Secondary beam from ¹⁸O fragmentation.

doi: 10.1016/S0375-9474(99)00825-8
Citations: PlumX Metrics

2000FY01      Nucl.Phys. A677, 38 (2000)

H.O.U.Fynbo, M.J.G.Borge, L.Axelsson, J.Aysto, U.C.Bergmann, L.M.Fraile, A.Honkanen, P.Hornshoj, Y.Jading, A.Jokinen, B.Jonson, I.Martel, I.Mukha, T.Nilsson, G.Nyman, M.Oinonen, I.Piqueras, K.Riisager, T.Siiskonen, M.H.Smedberg, O.Tengblad, J.Thaysen, F.Wenander, and the ISOLDE Collaboration

The β2p Decay Mechanism of ³¹Ar

RADIOACTIVITY ³¹Ar(β⁺p) [from Ca(p, 3pxn)]; measured β-delayed Ep, E(2p), pp energy and angular correlations. ³¹Ar deduced β1p and β2p decay channels, T_1/2. ³⁰S, ³¹Cl deduced levels, J, π, branching ratios. CaO target, on-line mass separation, double sided Si strip detectors, surface barrier Si detector.

doi: 10.1016/S0375-9474(00)00248-7
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1999AU01      Phys.Rev. C59, 1252 (1999)

T.Aumann, D.Aleksandrov, L.Axelsson, T.Baumann, M.J.G.Borge, L.V.Chulkov, J.Cub, W.Dostal, B.Eberlein, Th.W.Elze, H.Emling, H.Geissel, V.Z.Goldberg, M.Golovkov, A.Grunschloss, M.Hellstrom, K.Hencken, J.Holeczek, R.Holzmann, B.Jonson, A.A.Korsheninnikov, J.V.Kratz, G.Kraus, R.Kulessa, Y.Leifels, A.Leistenschneider, T.Leth, I.Mukha, G.Munzenberg, F.Nickel, T.Nilsson, G.Nyman, B.Petersen, M.Pfutzner, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, W.Schwab, H.Simon, M.H.Smedberg, M.Steiner, J.Stroth, A.Surowiec, T.Suzuki, O.Tengblad, M.V.Zhukov

Continuum Excitations in ⁶He

NUCLEAR REACTIONS C, Pb(⁶He, 2nα), E=240 MeV/nucleon; measured Eα, neutron spectra, σ(E), σ(θ), integrated σ. ⁶He; deduced E1 continuum strength distribution, 2⁺ resonance excitation B(E2), other reaction mechanism features. Secondary beam from ¹⁸O fragmentation. Astrophysical implications discussed.

doi: 10.1103/PhysRevC.59.1252
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1999FY01      Phys.Rev. C59, 2275 (1999)

H.O.U.Fynbo, L.Axelsson, J.Aysto, M.J.G.Borge, L.M.Fraile, A.Honkanen, P.Hornshoj, Y.Jading, A.Jokinen, B.Jonson, I.Martel, I.Mukha, T.Nilsson, G.Nyman, M.Oinonen, K.Riisager, T.Siiskonen, M.H.Smedberg, O.Tengblad, F.Wenander, and the ISOLDE Collaboration

³¹Ar Examined: New limit on the β-delayed three-proton branch

RADIOACTIVITY ³¹Ar(β⁺); measured Eβ, Ep, β-delayed multi-proton decay branching ratios; deduced three-proton branch upper limit.

doi: 10.1103/PhysRevC.59.2275
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1999SI08      Phys.Rev.Lett. 83, 496 (1999)

H.Simon, D.Aleksandrov, T.Aumann, L.Axelsson, T.Baumann, M.J.G.Borge, L.V.Chulkov, R.Collatz, J.Cub, W.Dostal, B.Eberlein, Th.W.Elze, H.Emling, H.Geissel, A.Grunschloss, M.Hellstrom, J.Holeczek, R.Holzmann, B.Jonson, J.V.Kratz, G.Kraus, R.Kulessa, Y.Leifels, A.Leistenschneider, T.Leth, I.Mukha, G.Munzenberg, F.Nickel, T.Nilsson, G.Nyman, B.Petersen, M.Pfutzner, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, W.Schwab, M.H.Smedberg, J.Stroth, A.Surowiec, O.Tengblad, M.V.Zhukov

Direct Experimental Evidence for Strong Admixture of Different Parity States in ¹¹Li

NUCLEAR REACTIONS C(¹¹Li, n¹⁰Li), E=287 MeV/nucleon; measured core fragment transverse momentum, (fragment)n-coin, decay neutron angular distribution. ¹¹Li deduced ground-state wave function parity admixture.

doi: 10.1103/PhysRevLett.83.496
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1999SM01      Phys.Rev. C59, 2048 (1999)

M.H.Smedberg, M.V.Zhukov

Effects of a Low-Lying Resonance in ¹⁹C on the ¹⁸C Momentum Distribution After Fragmentation

NUCLEAR REACTIONS C(¹⁹C, n¹⁸C), E=914 MeV/nucleon; Be(¹⁹C, n¹⁸C), E=88 MeV/nucleon; calculated ¹⁸C fragment longitudinal momentum; deduced structure effects. ¹⁹C deduced low-lying resonance. Binary coupling model.

doi: 10.1103/PhysRevC.59.2048
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1999SM04      Phys.Lett. 452B, 1 (1999)

M.H.Smedberg, T.Baumann, T.Aumann, L.Axelsson, U.Bergmann, M.J.G.Borge, D.Cortina-Gil, L.M.Fraile, H.Geissel, L.Grigorenko, M.Hellstrom, M.Ivanov, N.Iwasa, R.Janik, B.Jonson, H.Lenske, K.Markenroth, G.Munzenberg, T.Nilsson, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, W.Schwab, H.Simon, B.Sitar, P.Strmen, K.Summerer, M.Winkler, M.V.Zhukov

New Results on the Halo Structure of ⁸B

NUCLEAR REACTIONS C(⁸B, p⁷Be), E=1440 MeV/nucleon; measured σ, heavy fragment longitudinal momentum distribution; deduced shadowing effect. ⁸B deduced halo structure. Fragment separator, secondary beam from carbon fragmentation.

doi: 10.1016/S0370-2693(99)00245-2
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1999TH09      Phys.Lett. 467B, 194 (1999)

J.Thaysen, L.Axelsson, J.Aysto, M.J.G.Borge, L.M.Fraile, H.O.U.Fynbo, A.Honkanen, P.Hornshoj, Y.Jading, A.Jokinen, B.Jonson, I.Martel, I.Mukha, T.Nilsson, G.Nyman, M.Oinonen, K.Riisager, T.Siiskonen, M.H.Smedberg, O.Tengblad, F.Wenander, and the ISOLDE Collaboration

Determination of the Spin of ³¹Ar

RADIOACTIVITY ^31,32,33Ar(β⁺p) [from Ca(p, X)]; measured β-delayed proton spectra, recoil energy shift. ³¹Ar deduced ground-state spin.

doi: 10.1016/S0370-2693(99)01172-7
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1998AL10      Nucl.Phys. A633, 234 (1998)

D.Aleksandrov, T.Aumann, L.Axelsson, T.Baumann, M.J.G.Borge, L.V.Chulkov, J.Cub, W.Dostal, B.Eberlein, Th.W.Elze, H.Emling, H.Geissel, V.Z.Goldberg, M.Golovkov, A.Grunschloss, M.Hellstrom, J.Holeczek, R.Holzmann, B.Jonson, A.A.Korsheninnikov, J.V.Kratz, G.Kraus, R.Kulessa, Y.Leifels, A.Leistenschneider, T.Leth, I.Mukha, G.Munzenberg, F.Nickel, T.Nilsson, G.Nyman, B.Petersen, M.Pfutzner, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, W.Schwab, H.Simon, M.H.Smedberg, M.Steiner, J.Stroth, A.Surowiec, T.Suzuki, O.Tengblad, M.V.Zhukov

Invariant Mass Spectrum and α-n Correlation Function Studied in the Fragmentation of ⁶He on a Carbon Target

NUCLEAR REACTIONS C(⁶He, nα), E=240 MeV/nucleon; measured En, Eα, nα-coin; deduced two-step reaction mechanism. Radioactive beam, halo nuclei.

doi: 10.1016/S0375-9474(98)00120-1
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0172.

1998AU02      Nucl.Phys. A640, 24 (1998)

T.Aumann, L.V.Chulkov, V.N.Pribora, M.H.Smedberg

Manifestation of the Halo Structure in Momentum Distributions from ⁶He Fragmentation

NUCLEAR REACTIONS C(⁶He, 2nα), E = 240 MeV/nucleon; analyzed n, α momentum distributions; deduced fragmentation mechanism features. ⁶He deduced halo features.

doi: 10.1016/S0375-9474(98)00442-4
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1998AX02      Nucl.Phys. A634, 475 (1998); Erratum Nucl.Phys. A641, 529 (1998)

L.Axelsson, J.Aysto, M.J.G.Borge, L.M.Fraile, H.O.U.Fynbo, A.Honkanen, P.Hornshoj, A.Jokinen, B.Jonson, P.O.Lipas, I.Martel, I.Mukha, T.Nilsson, G.Nyman, B.Petersen, K.Riisager, M.H.Smedberg, O.Tengblad, and the ISOLDE Collaboration

Beta Decay of ³¹Ar

RADIOACTIVITY ³¹Ar(β⁺p) [from 1 GeV p on CaO powder target]; measured βp-, βγ-coin, Ep, Ip. ³¹Cl deduced levels, branching, log ft, Gamow-Teller strength, IAS. OXBASH shell-model calculations, Gamow-Teller quenching, isospin mixing.

doi: 10.1016/S0375-9474(98)00172-9
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1998BA87      Phys.Lett. 439B, 256 (1998)

T.Baumann, M.J.G.Borge, H.Geissel, H.Lenske, K.Markenroth, W.Schwab, M.H.Smedberg, T.Aumann, L.Axelsson, U.Bergmann, D.Cortina-Gil, L.Fraile, M.Hellstrom, M.Ivanov, N.Iwasa, R.Janik, B.Jonson, G.Munzenberg, F.Nickel, T.Nilsson, A.Ozawa, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, H.Simon, B.Sitar, P.Strmen, K.Summerer, T.Suzuki, M.Winkler, H.Wollnik, M.V.Zhukov

Longitudinal Momentum Distributions of ^{16, 18}C Fragments After One-Neutron Removal from ^{17, 19}C

NUCLEAR REACTIONS C(¹⁷C, n¹⁶C), (¹⁹C, n¹⁸C), E ≈ 910 MeV/nucleon; measured carbon fragments longitudinal momentum distributions. ^17,19C deduced halo features. Secondary beams from ⁴⁰Ar primary beam fragmentation.

doi: 10.1016/S0370-2693(98)01097-1
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1998MU06      Nucl.Phys. A630, 394c (1998)

I.Mukha, L.Axelsson, J.Aysto, U.C.Bergmann, M.J.G.Borge, L.M.Fraile, H.O.U.Fynbo, A.Honkanen, P.Hornshoj, Y.Jading, B.Jonson, A.Jokinen, I.Martel, M.Oinonen, T.Nilsson, G.Nyman, B.Petersen, K.Riisager, T.Siiskonen, M.H.Smedberg, O.Tengblad, F.Wenander, and the ISOLDE Collaboration

Two-Proton Decay of the Isobaric Analogue State of ³¹Ar

RADIOACTIVITY ³¹Ar(β⁺p) [from Ca(p, X), E=1 GeV]; measured beta-delayed two-proton decay energies, angular correlations. ³¹Cl deduced IAS 2p decay branching ratios.

doi: 10.1016/S0375-9474(97)00777-X
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1998RI02      Nucl.Phys. A628, 363 (1998)

D.Ridikas, M.H.Smedberg, J.S.Vaagen, M.V.Zhukov

Exploratory Coupled Channels Calculations for Loosely Bound Carbon Isotopes

NUCLEAR STRUCTURE ^17,19C; calculated matter radii, E1 strength functions, neutron stripping, Coulomb dissociation cross sections. Neutron-plus-core coupling model.

NUCLEAR REACTIONS Be(¹⁹C, n¹⁸C), E=77 MeV/nucleon; Be(¹⁷C, n¹⁶C), E=83 MeV/nucleon; analyzed fragments transverse, longitudinal momentum distributions. Neutron-plus-core coupling model.

doi: 10.1016/S0375-9474(98)00657-5
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1997BO01      Phys.Rev. C55, R8 (1997)

M.J.G.Borge, H.Fynbo, D.Guillemaud-Mueller, P.Hornshoj, F.Humbert, B.Jonson, T.E.Leth, G.Martinez-Pinedo, T.Nilsson, G.Nyman, A.Poves, I.Ramos-Lerate, K.Riisager, G.Schrieder, M.H.Smedberg, O.Tengblad, and the ISOLDE Collaboration

Elucidating Halo Structure by β Decay: βγ from the ¹¹Li Decay

RADIOACTIVITY ¹¹Li(β^-); measured βγ-coin, Eγ, Iγ. ¹¹Be levels deduced branching ratio. ¹¹Li deduced ground state s-wave component.

doi: 10.1103/PhysRevC.55.R8
Citations: PlumX Metrics

1997BO03      Nucl.Phys. A613, 199 (1997)

M.J.G.Borge, L.Grigorenko, D.Guillemaud-Mueller, P.Hornshoj, F.Humbert, B.Jonson, T.E.Leth, G.Martinez Pinedo, I.Mukha, T.Nilsson, G.Nyman, K.Riisager, G.Schrieder, M.H.Smedberg, O.Tengblad, M.V.Zhukov, and the ISOLDE Collaboration

Probing the ¹¹Li Halo Structure Through β-Decay into the ¹¹Be(*)(18 MeV) State

RADIOACTIVITY ¹¹Li(β^-) [from Ta(p, X), E=1 GeV]; measured β-delayed d, t, ^4,6He, ^9,10Be spectra. ¹¹Be level deduced Gamow-Teller strength, branching ratios. On-line mass separation, ΔE-E telescope.

doi: 10.1016/S0375-9474(96)00434-4
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1997CH24      Phys.Rev.Lett. 79, 201 (1997)

L.V.Chulkov, T.Aumann, D.Aleksandrov, L.Axelsson, T.Baumann, M.J.G.Borge, R.Collatz, J.Cub, W.Dostal, B.Eberlein, Th.W.Elze, H.Emling, H.Geissel, V.Z.Goldberg, M.Golovkov, A.Grunschloss, M.Hellstrom, J.Holeczek, R.Holzmann, B.Jonson, A.A.Korsheninnikov, J.V.Kratz, G.Kraus, R.Kulessa, Y.Leifels, A.Leistenschneider, T.Leth, I.Mukha, G.Munzenberg, F.Nickel, T.Nilsson, G.Nyman, B.Petersen, M.Pfutzner, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, W.Schwab, H.Simon, M.H.Smedberg, M.Steiner, J.Stroth, A.Surowiec, T.Suzuki, O.Tengblad

Large Spin Alignment of the Unbound ⁵He Fragment after Fragmentation of 240 MeV/nucleon ⁶He

NUCLEAR REACTIONS C(⁶He, X), E=240 MeV/nucleon; measured projectile peripheral fragmentation, p(αn) vs θ, φ; deduced ⁵He+n fragmentation mechanism dominance.

doi: 10.1103/PhysRevLett.79.201
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1997MU06      Nucl.Phys. A616, 201c (1997)

I.Mukha, M.J.G.Borge, D.Guillemaud-Mueller, P.Hornshoj, F.Humbert, B.Jonson, T.E.Leth, G.Martinez Pinedo, T.Nilsson, G.Nyman, K.Riisager, G.Schrieder, M.H.Smedberg, O.Tengblad, and the ISOLDE Collaboration

Super-Strong β-Decay of ¹¹Li into ¹¹Be(*)(18 MeV) State: A probe for halo p-wave component ( Question )

RADIOACTIVITY ¹¹Li(β^-); analyzed β-delayed deuteron, triton spectra, α-, ⁶He-, ^9,10Be-spectra. ¹¹Be deduced possible level, Γ, Gamow-Teller strength.

doi: 10.1016/S0375-9474(97)00089-4
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1996HO24      Nucl.Phys. A611, 47 (1996)

A.Honkanen, L.Axelsson, J.Aysto, M.J.G.Borge, B.Jonson, A.Jokinen, I.Martel, G.Martinez-Pinedo, I.Mukha, T.Nilsson, G.Nyman, B.Petersen, A.Poves, M.H.Smedberg, A.Teijeiro, O.Tengblad, and the ISOLDE Collaboration

Fine Structure in the Beta-Delayed Proton Decay of ³³Ar

RADIOACTIVITY ³³Ar(β⁺p) [from ⁹³Nb(p, X), E=1 GeV, selective mass separation]; measured β-delayed Ep, Ip; deduced spectroscopic amplitudes. Shell model. Gas-Si telescope spectrometer.

doi: 10.1016/S0375-9474(96)00313-2
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1996MU19      Phys.Lett. 367B, 65 (1996)

I.Mukha, M.J.G.Borge, D.Guillemaud-Mueller, P.Hornshoj, F.Humbert, B.Jonson, T.E.Leth, G.Martinez Pinedo, T.Nilsson, G.Nyman, K.Riisager, G.Schrieder, M.H.Smedberg, O.Tengblad, K.Wilhelmsen Rolander, and the ISOLDE Collaboration

Observation of the ¹¹Li(βd) Decay

RADIOACTIVITY ¹¹Li(β^-); measured β-delayed deuteron-, triton-total energy spectra, β-delayed charged particles count rate vs elapsed time; deduced β-delayed deuteron emission associated branching ratio lower limit.

doi: 10.1016/0370-2693(95)01397-0
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1996NI02      Nucl.Phys. A598, 418 (1996)

T.Nilsson, F.Humbert, W.Schwab, H.Simon, M.H.Smedberg, M.Zinser, Th.Blaich, M.J.G.Borge, L.V.Chulkov, Th.W.Elze, H.Emling, H.Geissel, K.Grimm, D.Guillemaud-Mueller, P.G.Hansen, R.Holzmann, H.Irnich, B.Jonson, J.G.Keller, H.Klingler, A.A.Korsheninnikov, J.V.Kratz, R.Kulessa, D.Lambrecht, Y.Leifels, A.Magel, M.Mohar, A.C.Mueller, G.Munzenberg, F.Nickel, G.Nyman, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, B.M.Sherrill, K.Stelzer, J.Stroth, O.Tengblad, W.Trautmann, E.Wajda, M.V.Zhukov, E.Zude

⁶He and Neutron Momentum Distributions from ⁸He in Nuclear Break-Up Reactions at 240 MeV/u

NUCLEAR REACTIONS C(⁸He, X), E=240 MeV/nucleon; measured ⁶He, n-momentum distributions, invariant mass spectra; deduced two-neutron removal σ, reaction mechanism. Secondary ⁸He beam from ⁹Be(¹⁸O, X) reactions.

doi: 10.1016/0375-9474(95)00468-8
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1995KO45      Europhys.Lett. 29, 359 (1995)

A.A.Korsheninnikov, M.V.Zhukov, M.H.Smedberg, T.Kobayashi

Neutron Momentum Distributions from Fragmentation of the Exotic Nucleus ⁸He

NUCLEAR STRUCTURE ⁸He; calculated neutron transverse momentum distribution following fragmentation. Five-body cluster-orbital shell model.

doi: 10.1209/0295-5075/29/5/002
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1995ZH06      Nucl.Phys. A583, 803c (1995)

M.V.Zhukov, A.A.Korsheninnikov, M.H.Smedberg, T.Kobayashi

Particle Momentum Distributions for ⁸He in α + 4n Model

NUCLEAR REACTIONS C(⁸He, X), E=0.8 GeV/nucleon; calculated ⁶He-, n-transverse momentum distribution following projectile fragmentation.

doi: 10.1016/0375-9474(94)00762-C
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1994ZH14      Phys.Rev. C50, R1 (1994)

M.V.Zhukov, A.A.Korsheninnikov, M.H.Smedberg

Simplified α + 4n Model for the ⁸He Nucleus

NUCLEAR STRUCTURE ⁸He; calculated α-particle momentum distribution. Simplified α+4n model.

NUCLEAR REACTIONS C(⁸He, ⁶He), E=0.8 GeV/nucleon; calculated ⁶He transverse momentum distribution. Simplified α+4n model for ⁸He.

doi: 10.1103/PhysRevC.50.R1
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