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NSR database version of May 19, 2024.

Search: Author = U.Bergmann

Found 48 matches.

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2012WE08      J.Phys.:Conf.Ser. 337, 012018 (2012)

L.Weissman, U.Bergmann, J.Cederkall, L.Fraile, S.Franchoo, H.O.U.Fynbo, T.Fritioff, U.Koster, O.Arnd, I.Dillman, O.Hallmann, K.-L.Kratz, B.Pfeiffer, A.Wohr, L.Gaudefroy, O.Sorlin, for the ISOLDE collaboration

Decay of 48-50Ar isotopes

RADIOACTIVITY 48,49,50Ar(β-)[from mass separator]; measured β-gated Eγ, Iγ, γγ-coin, Eβ, Iβ, βγ-coin using βγ detector, β telescope and secondary ECR ion source; deduced T1/2.

doi: 10.1088/1742-6596/337/1/012018
Citations: PlumX Metrics


2008MA34      Nucl.Phys. A810, 1 (2008)

M.Madurga, M.J.G.Borge, J.C.Angelique, L.Bao, U.Bergmann, A.Buta, J.Cederkall, C.Aa.Diget, L.M.Fraile, H.O.U.Fynbo, H.B.Jeppesen, B.Jonson, F.Marechal, F.M.Marques, T.Nilsson, G.Nyman, F.Perrot, K.Riisager, O.Tengblad, E.Tengborn, M.Turrion, K.Wilhelmsen

Study of β-delayed 3-body and 5-body breakup channels observed in the decay of 11Li

RADIOACTIVITY 11Li(β-); measured β-delayed charged-particle spectra. 11Be deduced subsequent break-up decay channels.

doi: 10.1016/j.nuclphysa.2008.07.008
Citations: PlumX Metrics

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


2007BE14      Nucl.Sci.Eng. 156, 86 (2007)

U.C.Bergmann, P.Grimm, F.Jatuff, M.F.Murphy, R.Chawla

Investigations of 238U Captures to Total Fissions in a Westinghouse SVEA-96+ Assembly

NUCLEAR REACTIONS 238U(n, X), E=reactor; measured reaction-rate ratio for neutron capture to total fission. Comparison with model predictions.

doi: 10.13182/NSE07-A2687
Citations: PlumX Metrics


2006JE02      Phys.Lett. B 635, 17 (2006)

H.B.Jeppesen, A.M.Moro, T.Nilsson, F.Ames, P.van den Bergh, U.C.Bergmann, G.Bollen, M.J.G.Borge, J.Cederkall, P.Van Duppen, S.Emhofer, O.Forstner, L.M.Fraile, H.O.U.Fynbo, J.Gomez-Camacho, D.Habs, R.von Hahn, G.Huber, M.Huyse, H.T.Johansson, B.Jonson, O.Kester, H.Lenske, L.Liljeby, M.Meister, G.Nyman, M.Oinonen, M.Pantea, H.Podlech, U.Ratzinger, K.Reisinger, K.G.Rensfelt, R.Repnow, K.Riisager, A.Richter, K.Rudolph, H.Scheit, A.Schempp, P.Schmidt, G.Schrieder, D.Schwalm, T.Sieber, H.Simon, O.Tengblad, E.Tengborn, M.Turrion, L.Weissman, F.Wenander, B.Wolf

Investigation of the 9Li + 2H → 8Li + t reaction at REX-ISOLDE

NUCLEAR REACTIONS 2H(9Li, 8Li), E=2.36 MeV/nucleon; measured particle spectra, σ(θ). 8Li levels deduced energies, spectroscopic factors. Comparison with optical model calculations, post-accelerated radioactive beam.

doi: 10.1016/j.physletb.2006.02.034
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1395.


2006JE09      Phys.Lett. B 642, 449 (2006)

H.B.Jeppesen, A.M.Moro, U.C.Bergmann, M.J.G.Borge, J.Cederkall, L.M.Fraile, H.O.U.Fynbo, J.Gomez-Camacho, H.T.Johansson, B.Jonson, M.Meister, T.Nilsson, G.Nyman, M.Pantea, K.Riisager, A.Richter, G.Schrieder, T.Sieber, O.Tengblad, E.Tengborn, M.Turrion, F.Wenander

Study of 10Li via the 9Li(2H, p) reaction at REX-ISOLDE

NUCLEAR REACTIONS 2H(9Li, 10Li), E=2.36 MeV/nucleon; measured proton spectra, σ(θ). 10Li deduced spectroscopic factors. Comparison with optical model calculations, post-accelerated radioactive beam.

doi: 10.1016/j.physletb.2006.09.060
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1410.


2006PE16      Phys.Rev. C 74, 014313 (2006)

F.Perrot, F.Marechal, C.Jollet, Ph.Dessagne, J.-C.Angelique, G.Ban, P.Baumann, F.Benrachi, U.Bergmann, C.Borcea, A.Buta, J.Cederkall, S.Courtin, J.-M.Daugas, L.M.Fraile, S.Grevy, A.Jokinen, F.R.Lecolley, E.Lienard, G.Le Scornet, V.Meot, Ch.Miehe, F.Negoita, N.A.Orr, S.Pietri, E.Poirier, M.Ramdhane, O.Roig, I.Stefan, W.Wang

β-decay studies of neutron-rich K isotopes

RADIOACTIVITY 51,52,53K(β-), (β-n) [from U(p, X)]; measured β-delayed Eγ, En, γγ-, nγ-coin, T1/2; deduced one- and two-neutron emission probabilities. 50,51,52,53Ca deduced transitions, levels.

doi: 10.1103/PhysRevC.74.014313
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Data from this article have been entered in the XUNDL database. For more information, click here.


2005KO43      Eur.Phys.J. A 25, Supplement 1, 729 (2005)

U.Koster, O.Arndt, U.C.Bergmann, R.Catherall, J.Cederkall, I.Dillmann, M.Dubois, F.Durantel, L.Fraile, S.Franchoo, G.Gaubert, L.Gaudefroy, O.Hallmann, C.Huet-Equilbec, B.Jacquot, P.Jardin, K.L.Kratz, N.Lecesne, R.Leroy, A.Lopez, L.Maunoury, J.Y.Pacquet, B.Pfeiffer, M.G.Saint-Laurent, C.Stodel, A.C.C.Villari, L.Weissman

ISOL beams of neutron-rich oxygen isotopes

NUCLEAR REACTIONS U(p, X)19O/20O/21O/22O, E=1.4GeV; measured yields.

doi: 10.1140/epjad/i2005-06-199-4
Citations: PlumX Metrics


2005WE06      J.Phys.(London) G31, 553 (2005)

L.Weissman, A.F.Lisetskiy, O.Arndt, U.Bergmann, B.A.Brown, J.Cederkall, I.Dillmann, O.Hallmann, L.Fraile, S.Franchoo, L.Gaudefroy, U.Koster, K.-L.Kratz, B.Pfeiffer, O.Sorlin, and the ISOLDE Collaboration

β-decay of 22O

RADIOACTIVITY 22O, 22F(β-) [from U(p, X) and subsequent decay]; measured Eγ, Iγ, γγ-, βγ-coin, T1/2. 22F deduced levels, J, π, β-feeding intensities. 22Ne deduced transitions. Mass separator, comparison with model predictions.

doi: 10.1088/0954-3899/31/7/002
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Data from this article have been entered in the XUNDL database. For more information, click here.


2004BE57      Nucl.Phys. A746, 475c (2004)

U.C.Bergmann

Low-lying states of 10Li studied in reactions of a 9Li beam REX-ISOLDE

NUCLEAR REACTIONS 2H(9Li, p), E=2.36 MeV/nucleon; 1H(9Li, X), E < 2.25 MeV/nucleon; measured particle spectra. 10Li, 10Be deduced excited states features.

doi: 10.1016/j.nuclphysa.2004.09.152
Citations: PlumX Metrics


2004BO22      Nucl.Phys. A738, 206 (2004)

M.J.G.Borge, Y.Prezado, U.C.Bergmann, R.Boutami, J.Cederkall, C.Aa.Diget, L.M.Fraile, H.O.U.Fynbo, Y.Jading, H.Jeppesen, B.Jonson, I.Martel, M.Meister, T.Nilsson, G.Nyman, K.Riisager, H.Simon, O.Tengblad, L.Weissman, F.Wenander, K.Wilhelmsen

Asymmetry in the super-allowed β-transitions of the A=9 isobars

RADIOACTIVITY 9Li(β-); 9C(β+); analyzed β-delayed Eα, Ep, En, angular correlations. 9Be, 9B deduced level energies, widths, decay branching ratios.

doi: 10.1016/j.nuclphysa.2004.04.074
Citations: PlumX Metrics


2004BO43      Nucl.Phys. A746, 243c (2004)

M.J.G.Borge, U.C.Bergmann, R.Boutami, J.Cederkall, P.Dendooven, L.M.Fraile, H.O.U.Fynbo, W.X.Huang, J.Huikari, Y.Jading, H.Jeppesen, A.Jokinen, B.Jonson, I.Martel, M.Meister, T.Nilsson, G.Nyman, Y.Prezado, K.Riisager, O.Tengblad, L.Weissman, K.Wilhelmsen, J.Aysto

Beta-Delayed Multiparticle Emission Studies at ISOL-type Facilities

RADIOACTIVITY 9C, 12N(β+); measured β-delayed particle spectra, yields. 9B, 12C deduced excited states particle-decay features.

doi: 10.1016/j.nuclphysa.2004.09.037
Citations: PlumX Metrics


2004FY02      Nucl.Phys. A738, 59 (2004)

H.O.U.Fynbo, C.Aa.Diget, Y.Prezado, J.Aysto, U.C.Bergmann, J.Cederkall, P.Dendooven, L.M.Fraile, S.Franchoo, B.R.Fulton, W.Huang, J.Huikari, H.Jeppesen, A.Jokinen, B.Jonson, P.Jones, U.Koster, M.Meister, T.Nilsson, G.Nyman, M.J.G.Borge, K.Riisager, S.Rinta-Antila, I.S.Vogelius, O.Tengblad, M.Turrion, Y.Wang, L.Weissman, K.Wilhelmsen, and the ISOLDE Collaboration

News on 12C from β-decay studies

RADIOACTIVITY 12B(β-) [from 11B(d, p)]; 12N(EC) [from 10B(3He, n)]; analyzed β-delayed Eα, αα-coin. 12C deduced resonance features.

doi: 10.1016/j.nuclphysa.2004.04.012
Citations: PlumX Metrics


2004JE08      Nucl.Phys. A738, 511 (2004)

H.Jeppesen, F.Ames, U.C.Bergmann, M.J.G.Borge, J.Cederkall, S.Emhofer, L.M.Fraile, H.O.U.Fynbo, S.Henry, H.T.Johansson, B.Jonson, M.Meister, T.Nilsson, G.Nyman, M.Pantea, K.Riisager, A.Richter, K.Rudolph, G.Schrieder, T.Siebert, O.Tengblad, E.Tengborn, M.Turrion, R.von Hahn, F.Wenander, B.Wolf, and the ISOLDE and REX-ISOLDE Collaborations

Experimental investigation of the 9Li + d reaction at REX-ISOLDE

NUCLEAR REACTIONS 2H(9Li, p), E=2.36 MeV/nucleon; measured excitation energy spectrum. 10Li deduced excited state.

doi: 10.1016/j.nuclphysa.2004.04.099
Citations: PlumX Metrics


2004PR11      Nucl.Phys. A746, 518c (2004)

Y.Prezado, U.C.Bergmann, M.J.G.Borge, J.Cederkall, L.M.Fraile, H.O.U.Fynbo, H.Jeppesen, B.Jonson, M.Meister, G.Nyman, K.Riisager, O.Tengblad, T.Nilsson, L.Weissman, K.Wilhelmsen

The β-decay of 9Li to the high lying states in 9Be

RADIOACTIVITY 9Li(β-); measured Eα, αα-coin following daughter nucleus decay; deduced Gamow-Teller transition strength. 9Be levels deduced particle decay branching ratios.

doi: 10.1016/j.nuclphysa.2004.09.080
Citations: PlumX Metrics


2004WE09      Phys.Rev. C 70, 024304 (2004)

L.Weissman, O.Arndt, U.Bergmann, A.Brown, R.Catherall, J.Cederkall, I.Dillmann, O.Hallmann, L.Fraile, S.Franchoo, L.Gaudefroy, U.Koster, K.-L.Kratz, B.Pfeiffer, O.Sorlin

β decay of 47Ar

RADIOACTIVITY 47Ar(β-) [from 238U(p, X)]; measured Eγ, Iγ, T1/2; deduced logft, neutron emission probability upper limit. 47Ar deduced ground-state J, π. 47K deduced levels, J, π.

doi: 10.1103/PhysRevC.70.024304
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Data from this article have been entered in the XUNDL database. For more information, click here.


2004WE11      Phys.Rev. C 70, 057306 (2004)

L.Weissman, O.Arndt, U.Bergmann, J.Cederkall, I.Dillmann, O.Hallmann, L.Fraile, S.Franchoo, L.Gaudefroy, U.Koster, K.L.Kratz, A.F.Lisetskiy, B.Pfeiffer, O.Sorlin, S.Tabor

β decay of 26Ne

RADIOACTIVITY 26Ne(β-) [from U(p, F)]; measured β-delayed Eγ, Iγ, γγ-, βγ-coin, T1/2; deduced log ft. 26Na deduced levels, J, π, β-feeding intensities.

doi: 10.1103/PhysRevC.70.057306
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Data from this article have been entered in the XUNDL database. For more information, click here.


2003BE05      Nucl.Phys. A714, 21 (2003)

U.C.Bergmann, C.Aa.Diget, K.Riisager, L.Weissman, G.Aubock, J.Cederkall, L.M.Fraile, H.O.U.Fynbo, H.Gausemel, H.Jeppesen, U.Koster, K.-L.Kratz, P.Moller, T.Nilsson, B.Pfeiffer, H.Simon, K.Van de Vel, J.Aysto, and the ISOLDE Collaboration

Beta-decay properties of the neutron-rich 94-99Kr and 142-147Xe isotopes

RADIOACTIVITY 94,95,96,97,98,99Kr, 142,143,144,145,146,147Xe(β-), (β-n) [from U(p, X)]; measured Eβ, β-delayed neutron spectra, neutron emission probability, T1/2. Mass separation, QRPA calculations, astrophysical implications discussed.

NUCLEAR REACTIONS U(p, X)94Kr/95Kr/96Kr/97Kr/98Kr/99Kr/142Xe/143Xe/144Xe/145Xe/146Xe/147Xe, E=1, 1.4 GeV; measured yields. Mass separator.

doi: 10.1016/S0375-9474(02)01352-0
Citations: PlumX Metrics


2003BE27      Nucl.Instrum.Methods Phys.Res. B204, 220 (2003)

U.C.Bergmann, G.Aubock, R.Catherall, J.Cederkall, C.Aa.Diget, L.Fraile, S.Franchoo, H.Fynbo, H.Gausemel, U.Georg, T.Giles, H.Jeppesen, O.C.Jonsson, U.Koster, J.Lettry, T.Nilsson, K.Perajarvi, H.Ravn, K.Riisager, L.Weissman, J.Aysto, and the ISOLDE Collaboration

Production yields of noble-gas isotopes from ISOLDE UCX/graphite targets

NUCLEAR REACTIONS U, Th(p, X), E=1, 1.4 GeV; measured fission fragment yields. Uranium and thorium carbide targets.

doi: 10.1016/S0168-583X(02)01921-3
Citations: PlumX Metrics


2003FY02      Phys.Rev.Lett. 91, 082502 (2003)

H.O.U.Fynbo, Y.Prezado, U.C.Bergmann, M.J.G.Borge, P.Dendooven, W.X.Huang, J.Huikari, H.Jeppesen, P.Jones, B.Jonson, M.Meister, G.Nyman, K.Riisager, O.Tengblad, I.S.Vogelius, Y.Wang, L.Weissman, K.W.Rolander, J.Aysto

Clarification of the Three-Body Decay of 12C (12.71 MeV)

RADIOACTIVITY 12N(EC) [from 12C(p, n)]; measured β-delayed α spectra, αα-coin. 12C level deduced 3-body decay mechanism. Modified sequential model.

doi: 10.1103/PhysRevLett.91.082502
Citations: PlumX Metrics


2003FY04      Nucl.Phys. A718, 541c (2003)

H.O.U.Fynbo, U.C.Bergmann, M.J.G.Borge, P.Dendooven, C.Aa.Diget, W.Huang, J.Huikari, H.Jeppesen, B.Jonson, P.Jones, M.Meister, G.Nyman, Y.Prezado, K.Riisager, I.S.Vogelius, O.Tengblad, Y.Wang, L.Weissman, K.Wilhelmsen Rolander, J.Aysto

New information on 12C states from the decays of 12N and 12B

RADIOACTIVITY 12N(EC); measured β-delayed Eα, αα-coin. 12C deduced excited states.

doi: 10.1016/S0375-9474(03)00837-6
Citations: PlumX Metrics


2003KO26      Nucl.Instrum.Methods Phys.Res. B204, 347 (2003)

U.Koster, V.N.Fedoseyev, A.N.Andreyev, U.C.Bergmann, R.Catherall, J.Cederkall, M.Dietrich, H.De Witte, D.V.Fedorov, L.Fraile, S.Franchoo, H.Fynbo, U.Georg, T.Giles, M.Gorska, M.Hannawald, M.Huyse, A.Joinet, O.C.Jonsson, K.L.Kratz, K.Kruglov, Ch.Lau, J.Lettry, V.I.Mishin, M.Oinonen, K.Partes, K.Perajarvi, B.Pfeiffer, H.L.Ravn, M.D.Seliverstov, P.Thirolf, K.Van de Vel, P.Van Duppen, J.Van Roosbroeck, L.Weissman, and the IS365/IS387/IS393/ISOLDE Collaborations

On-line yields obtained with the ISOLDE RILIS

doi: 10.1016/S0168-583X(02)01956-0
Citations: PlumX Metrics


2003PR11      Phys.Lett. B 576, 55 (2003)

Y.Prezado, U.C.Bergmann, M.J.G.Borge, J.Cederkall, C.Aa.Diget, L.M.Fraile, H.O.U.Fynbo, H.Jeppesen, B.Jonson, M.Meister, T.Nilsson, G.Nyman, K.Riisager, O.Tengblad, L.Weissman, K.Wilhelmsen Rolander, and the ISOLDE Collaboration

Large asymmetry in the strongest β-transition for A = 9

RADIOACTIVITY 9Li(β-) [from C, U(p, X)]; measured β-delayed Eα, αα-coin. 9Be deduced level J, π, β-branching strengths. A=9; deduced β-decay asymmetry in mirror transitions.

doi: 10.1016/j.physletb.2003.09.073
Citations: PlumX Metrics


2003WE09      Phys.Rev. C 67, 054314 (2003)

L.Weissman, U.Bergmann, J.Cederkall, L.M.Fraile, S.Franchoo, H.Fynbo, H.Gausemel, H.Jeppesen, U.Koster, K.-L.Kratz, T.Nilsson, B.Pfeiffer, K.Van del Vel, and the ISOLDE Collaboration

β decay of 49, 50Ar

RADIOACTIVITY 49,50Ar(β-), (β-n) [from U(p, X)]; measured T1/2, β-delayed neutron probability. Mass separator. Comparison with quasiparticle RPA model predictions.

NUCLEAR REACTIONS U(p, X), E=1.4 GeV; measured fragment yields.

doi: 10.1103/PhysRevC.67.054314
Citations: PlumX Metrics


2002BE50      Nucl.Phys. A701, 213c (2002)

U.C.Bergmann, K.Riisager

New Statistical Methods for Exotic Nuclei

doi: 10.1016/S0375-9474(01)01577-9
Citations: PlumX Metrics


2002BE52      Nucl.Phys. A701, 327c (2002)

J.R.J.Bennett, U.C.Bergmann, P.V.Drumm, J.Lettry, T.Nilsson, R.Catherall, O.C.Jonsson, H.L.Ravn, H.Simon, and the ISOLDE Collaboration

Release Studies of a Thin Foil Tantalum Target for the Production of Short-Lived Radioactive Nuclei

doi: 10.1016/S0375-9474(01)01606-2
Citations: PlumX Metrics


2002BE53      Nucl.Phys. A701, 363c (2002)

U.C.Bergmann, L.Axelsson, J.R.J.Bennett, M.J.G.Borge, R.Catherall, P.V.Drumm, V.N.Fedoseyev, C.Forssen, L.M.Fraile, H.O.U.Fynbo, U.Georg, T.Giles, S.Grevy, P.Hornshoj, B.Jonson, O.C.Jonsson, U.Koster, J.Lettry, K.Markenroth, F.M.Marques, V.I.Mishin, I.Mukha, T.Nilsson, G.Nyman, A.Oberstedt, H.L.Ravn, K.Riisager, G.Schrieder, V.Sebastian, H.Simon, O.Tengblad, F.Wenander, K.Wilhelmsen Rolander

Light Exotic Isotopes: Recent beam developments and physics applications at ISOLDE

RADIOACTIVITY 12Be(β-), (β-n); measured Eβ, β-delayed neutron spectra, T1/2. 14Be(β-); measured β-delayed neutrons, charged particles; deduced decay branching ratios. 9C(β+); measured Ep, Eα following daughter nucleus decay.

doi: 10.1016/S0375-9474(01)01611-6
Citations: PlumX Metrics


2002BO29      Nucl.Phys. A701, 373c (2002)

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

Proton Dripline Studies at ISOLDE: 31Ar and 9C

RADIOACTIVITY 31Ar(β+p); measured β-delayed proton spectra, pp-coin; deduced two-proton decay features. 9C(β+); measured Ep, Eα following daughter nucleus decay.

doi: 10.1016/S0375-9474(01)01613-X
Citations: PlumX Metrics


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


2002FY02      Eur.Phys.J. A 15, 135 (2002)

H.O.U.Fynbo, Y.Prezado, J.Aysto, U.C.Bergmann, M.J.G.Borge, P.Dendooven, W.Huang, J.Huikari, H.Jeppesen, P.Jones, B.Jonson, M.Meister, G.Nyman, M.Oinonen, K.Riisager, O.Tengblad, I.S.Vogelius, Y.Wang, L.Weissman, K.W.Rolander

Correlated emission of three α-particles in the β-decay of 12N

RADIOACTIVITY 12N(EC) [from 12C(p, n)]; measured β-delayed α-spectra, αα-coin. 12C deduced excited state break-up mechanism.

doi: 10.1140/epja/i2001-10241-9
Citations: PlumX Metrics


2002GE12      Nucl.Phys. A701, 137c (2002)

U.Georg, A.R.Junghans, H.Simon, U.C.Bergmann, R.Catherall, T.Giles, O.C.Jonsson, U.Koster, E.Kugler, J.Lettry, T.Nilsson, H.Ravn, K.-H.Schmidt, C.Tamburella, and the ISOLDE Collaboration

Isotope Production Comparison at ISOLDE with 1 and 1.4 GeV Protons

NUCLEAR REACTIONS 238U, 232Th, 208Pb, 139La(p, X), E=1, 1.4 GeV; measured fragments isotopic yields. Comparison with model predictions.

doi: 10.1016/S0375-9474(01)01562-7
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1006.


2002JE11      Nucl.Phys. A709, 119 (2002)

H.Jeppesen, U.C.Bergmann, M.J.G.Borge, J.Cederkall, V.N.Fedoseyev, H.O.U.Fynbo, V.Y.Hansper, B.Jonson, K.Markenroth, V.I.Mishin, T.Nilsson, G.Nyman, K.Riisager, O.Tengblad, K.Wilhelmsen Rolander, and the ISOLDE Collaboration

Search for Beta-Delayed Charged Particles from the Halo Nucleus 14Be

RADIOACTIVITY 14Be(β-), (β-n) [from Ta(p, X)]; measured β-delayed charged particle spectra, branching ratios, β-delayed neutron spectra. Mass separated source, Si-gas telescope, time distribution analysis.

doi: 10.1016/S0375-9474(02)01093-X
Citations: PlumX Metrics


2002JE14      Prog.Theor.Phys.(Kyoto), Suppl. 146, 520 (2002)

H.Jeppesen, U.C.Bergmann, M.J.G.Borge, J.Cederkall, V.N.Fedoseyev, H.O.U.Fynbo, V.Y.Hansper, B.Jonson, K.Markenroth, V.I.Mishin, T.Nilsson, G.Nyman, K.Riisager, O.Tengblad, K.Wilhelmsen-Rolander, and the ISOLDE Collaboration

News on Beta Delayed Particle Emission from 14Be

RADIOACTIVITY 14Be(β-) [from Ta(p, X)]; measured β-delayed triton and α spectra; deduced branching ratios, Gamow-Teller strength distribution.

doi: 10.1143/PTPS.146.520
Citations: PlumX Metrics


2002MA21      Phys.Rev. C65, 044006 (2002)

F.M.Marques, M.Labiche, N.A.Orr, J.C.Angelique, L.Axelsson, B.Benoit, U.C.Bergmann, M.J.G.Borge, W.N.Catford, S.P.G.Chappell, N.M.Clarke, G.Costa, N.Curtis, A.D'Arrigo, E.de Goes Brennand, F.de Oliveira Santos, O.Dorvaux, G.Fazio, M.Freer, B.R.Fulton, G.Giardina, S.Grevy, D.Guillemaud-Mueller, F.Hanappe, B.Heusch, B.Jonson, C.Le Brun, S.Leenhardt, M.Lewitowicz, M.J.Lopez, K.Markenroth, A.C.Mueller, T.Nilsson, A.Ninane, G.Nyman, I.Piqueras, K.Riisager, M.G.Saint Laurent, F.Sarazin, S.M.Singer, O.Sorlin, L.Stuttge

Detection of Neutron Clusters

NUCLEAR REACTIONS C(14Be, nX), E=35 MeV/nucleon; C(11Li, nX), E=30 MeV/nucleon; C(15B, X), E=48 MeV/nucleon; measured En, (charged particle)n-, nn-coin, angular distributions; deduced possible neutron cluster formation.

doi: 10.1103/PhysRevC.65.044006
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2002TE06      Nucl.Phys. A701, 222c (2002)

O.Tengblad, M.J.G.Borge, L.M.Fraile, U.C.Bergmann, H.O.U.Fynbo, K.Riisager, B.Jonson, T.Nilsson, G.Nyman, F.Wenander, for the IS339 and IS361 and ISOLDE Collaborations

Implications on Obtained Data, Electronics and DAQ-System by the use of Dense Detector Setups in Beta-Decay Studies

doi: 10.1016/S0375-9474(01)01579-2
Citations: PlumX Metrics


2001BE51      Nucl.Phys. A692, 427 (2001)

U.C.Bergmann, M.J.G.Borge, R.Boutami, L.M.Fraile, H.O.U.Fynbo, P.Hornshoj, B.Jonson, K.Markenroth, I.Martel, I.Mukha, T.Nilsson, G.Nyman, A.Oberstedt, Y.Prezado Alonso, K.Riisager, H.Simon, O.Tengblad, F.Wenander, K.Wilhelmsen Rolander, and the ISOLDE Collaboration

On the β-Decay of 9C

RADIOACTIVITY 9C(β+) [from O, Ca(p, X)]; measured β-delayed Ep, Eα, pαα-coin, angular correlations. 9B deduced β-branching strengths, decay mechanism features. A=9; deduced β-decay asymmetry. Double-sided silicon strip detectors, mass-separated source.

doi: 10.1016/S0375-9474(01)00650-9
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2001BE53      Eur.Phys.J. A 11, 279 (2001)

U.C.Bergmann, M.J.G.Borge, J.Cederkall, C.Forssen, E.Fumero, H.O.U.Fynbo, H.Gausemel, H.Jeppesen, B.Jonson, K.Markenroth, T.Nilsson, G.Nyman, K.Riisager, H.Simon, O.Tengblad, L.Weissman, F.Wenander, K.Wilhelmsen Rolander, and the ISOLDE Collaboration

Analysis of Decay Data from Neutron-Rich Nuclei

RADIOACTIVITY 12Be, 29Ne(β-)[from 238U(p, X), E=1 GeV]; measured T1/2, βn and β2n branching ratios, neutron spectra. Comparison with earlier data.

doi: 10.1007/s100500170066
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2001CO06      Eur.Phys.J. A 10, 49 (2001)

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

One-Nucleon Removal Cross-Sections for 17, 19C and 8, 10B

NUCLEAR REACTIONS C(17C, 16CX), E=904 MeV; C, Pb(19C, 18CX), E=910 MeV; C, Pb(8B, 7BeX), C(10B, 9BeX), E ≈ 1440 MeV; measured one-nucleon removal σ, momentum distributions. 8B, 19C deduced halo structures. Fragment separator.

doi: 10.1007/s100500170143
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2001FR02      Phys.Rev. C63, 034301 (2001); Erratum Phys.Rev. C64, 019904 (2001)

M.Freer, J.C.Angelique, L.Axelsson, B.Benoit, U.Bergmann, W.N.Catford, S.P.G.Chappell, N.M.Clarke, N.Curtis, A.D'Arrigo, E.de Goes Brennard, O.Dorvaux, B.R.Fulton, G.Giardina, C.Gregori, S.Grevy, F.Hanappe, G.Kelly, M.Labiche, C.Le Brun, S.Leenhardt, M.Lewitowicz, K.Markenroth, F.M.Marques, J.T.Murgatroyd, T.Nilsson, A.Ninane, N.A.Orr, I.Piqueras, M.G.Saint Laurent, S.M.Singer, O.Sorlin, L.Stuttge, D.L.Watson

Helium Breakup States in 10Be and 12Be

NUCLEAR REACTIONS 1H, 12C(12Be, 26He), 12C(12Be, α6He), E=378 MeV; measured particle spectra, angular distributions. 10,12Be deduced levels, possible cluster structure. Secondary beam from 18O fragmentation.

doi: 10.1103/PhysRevC.63.034301
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2001LA02      Phys.Rev.Lett. 86, 600 (2001)

M.Labiche, N.A.Orr, F.M.Marques, J.C.Angelique, L.Axelsson, B.Benoit, U.C.Bergmann, M.J.G.Borge, W.N.Catford, S.P.G.Chappell, N.M.Clarke, G.Costa, N.Curtis, A.D'Arrigo, E.de Goes Brennand, O.Dorvaux, G.Fazio, M.Freer, B.R.Fulton, G.Giardina, S.Grevy, D.Guillemaud-Mueller, F.Hanappe, B.Heusch, K.L.Jones, B.Jonson, C.Le Brun, S.Leenhardt, M.Lewitowicz, M.J.Lopez, K.Markenroth, A.C.Mueller, T.Nilsson, A.Ninane, G.Nyman, F.de Oliveira, I.Piqueras, K.Riisager, M.G.Saint Laurent, F.Sarazin, S.M.Singer, O.Sorlin, L.Stuttge

Halo Structure of 14Be

NUCLEAR REACTIONS C, Pb(14Be, 2n12Be), E=35 MeV/nucleon; measured σ, neutron angular and momentum distributions, decay energy spectra. 14Be deduced halo features. Kinematically complete measurement, secondary beam from 18O fragmentation. Comparison with three-body model calculations.

doi: 10.1103/PhysRevLett.86.600
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2001MA90      Phys.Rev. C64, 061301 (2001)

F.M.Marques, M.Labiche, N.A.Orr, J.C.Angelique, L.Axelsson, B.Benoit, U.C.Bergmann, M.J.G.Borge, W.N.Catford, S.P.G.Chappell, N.M.Clarke, G.Costa, N.Curtis, A.D'Arrigo, E.de Goes Brennand, F.de Oliveira Santos, O.Dorvaux, G.Fazio, M.Freer, B.R.Fulton, G.Giardina, S.Grevy, D.Guillemaud-Mueller, F.Hanappe, B.Heusch, B.Jonson, C.Le Brun, S.Leenhardt, M.Lewitowicz, M.J.Lopez, K.Markenroth, A.C.Mueller, T.Nilsson, A.Ninane, G.Nyman, I.Piqueras, K.Riisager, M.G.Saint Laurent, F.Sarazin, S.M.Singer, O.Sorlin, L.Stuttge

Three-Body Correlations in Borromean Halo Nuclei

NUCLEAR REACTIONS C, Pb(14Be, 2n12Be), E=35 MeV/nucleon; analyzed particle spectra, invariant mass, three-body correlations. Intensity interferometry, Dalitz plots.

doi: 10.1103/PhysRevC.64.061301
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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, T1/2. 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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2000MA12      Phys.Lett. 476B, 219 (2000)

F.M.Marques, M.Labiche, N.A.Orr, J.C.Angelique, L.Axelsson, B.Benoit, U.C.Bergmann, M.J.G.Borge, W.N.Catford, S.P.G.Chappell, N.M.Clarke, G.Costa, N.Curtis, A.D'Arrigo, F.de Oliveira Santos, E.de Goes Brennand, O.Dorvaux, M.Freer, B.R.Fulton, G.Giardina, C.Gregori, S.Grevy, D.Guillemaud-Mueller, F.Hanappe, B.Heusch, B.Jonson, C.Le Brun, S.Leenhardt, M.Lewitowicz, M.J.Lopez, K.Markenroth, M.Motta, A.C.Mueller, T.Nilsson, A.Ninane, G.Nyman, I.Piqueras, K.Riisager, M.G.Saint Laurent, F.Sarazin, S.M.Singer, O.Sorlin, L.Stuttge

Two-Neutron Interferometry as a Probe of the Nuclear Halo

NUCLEAR REACTIONS Pb(6He, 2nα), E=50 MeV/nucleon; Pb(11Li, 2n9Li), E=30 MeV/nucleon; Pb(14Be, 2n12Be), E=35 MeV/nucleon; measured neutron spectra, (neutron)(neutron)(core)-coin; deduced correlation functions. 6He, 11Li, 14Be deduced radii, n-n separations. Secondary beams from 18O fragmentation.

doi: 10.1016/S0370-2693(00)00141-6
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1999BE53      Nucl.Phys. A658, 129 (1999)

U.C.Bergmann, L.Axelsson, M.J.G.Borge, V.N.Fedoseyev, C.Forssen, H.O.U.Fynbo, S.Grevy, P.Hornshoj, Y.Jading, B.Jonson, U.Koster, K.Markenroth, F.M.Marques, V.I.Mishin, T.Nilsson, G.Nyman, A.Oberstedt, H.L.Ravn, K.Riisager, G.Schrieder, V.Sebastian, H.Simon, O.Tengblad, F.Wenander, K.Wilhelmsen Rolander, and the ISOLDE Collaboration

New Information on β-Delayed Neutron Emission from 12, 14Be

RADIOACTIVITY 12,14Be(β-) [from 1 GeV p on UC target]; measured β-delayed neutrons, βn and nn time correlations. 12,14Be deduced neutron emission probabilities, branching ratios. Neutron long counters, mass-separated sources.

doi: 10.1016/S0375-9474(99)00348-6
Citations: PlumX Metrics


1999FR04      Phys.Rev.Lett. 82, 1383 (1999)

M.Freer, J.C.Angelique, L.Axelsson, B.Benoit, U.Bergmann, W.N.Catford, S.P.G.Chappell, N.M.Clarke, N.Curtis, A.D'Arrigo, E.de Goes Brennand, O.Dorvaux, B.R.Fulton, G.Giardina, C.Gregori, S.Grevy, F.Hanappe, G.Kelly, M.Labiche, C.Le Brun, S.Leenhardt, M.Lewitowicz, K.Markenroth, F.M.Marques, M.Motta, J.T.Murgatroyd, T.Nilsson, A.Ninane, N.A.Orr, I.Piqueras, M.G.Saint Laurent, S.M.Singer, O.Sorlin, L.Stuttge, D.L.Watson

Exotic Molecular States in 12Be

NUCLEAR REACTIONS 1H, 12C(12Be, 26He), (12Be, α8He), E=378 MeV; measured Q-value spectra; deduced projectile breakup mechanism features. 12Be deduced deformed exotic cluster structure.

doi: 10.1103/PhysRevLett.82.1383
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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
Citations: PlumX Metrics


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, 18C Fragments After One-Neutron Removal from 17, 19C

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
Citations: PlumX Metrics


1996MA86      Nucl.Instrum.Methods Phys.Res. B117, 339 (1996)

C.Masciovecchio, U.Bergmann, M.Krisch, G.Ruocco, F.Sette, R.Verbeni

A Perfect Crystal X-Ray Analyser with 1.5 meV Energy Resolution

doi: 10.1016/0168-583X(96)00334-5
Citations: PlumX Metrics


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Note: The following list of authors and aliases matches the search parameter U.Bergmann: , U.C.BERGMANN, U.O.BERGMANN