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NSR database version of April 11, 2024.

Search: Author = W.Lourens

Found 27 matches.

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1992PA16      Z.Phys. A342, 245 (1992)

H.Paganetti, P.David, H.Hanscheid, J.Konijn, C.T.A.M.de Laat, W.Lourens, F.Risse, Ch.Rosel, L.A.Schaller, A.Taal

Radiationless Transition Probabilities in Muonic 209Bi

NUCLEAR REACTIONS 209Bi(μ-, X), E not given; measured E X-ray, I X-ray, (X-ray)(X-ray)-coin; deduced nonradiative excitation probability. Large volume Ge detectors, BGO Compton suppression system, large CsF crystal.

ATOMIC PHYSICS, Mesic-Atoms 209Bi(μ-, X), E not given; measured E X-ray, I X-ray, (X-ray)(X-ray)-coin; deduced nonradiative excitation probability. Large volume Ge detectors, BGO Compton suppression system, large CsF crystal.

doi: 10.1007/BF01288477
Citations: PlumX Metrics


1992PA17      Z.Phys. A343, 113 (1992)

H.Paganetti, P.David, H.Hanscheid, J.Konijn, C.T.A.M.de Laat, W.Lourens, F.Risse, Ch.Rosel, L.A.Schaller, A.Taal

Delayed Muon Induced Fission of 209Bi and the Role of Meson-Exchange Currents

NUCLEAR REACTIONS 209Bi(μ-, F), E not given; measured fission (fragment)(fragment)(t), E X-ray, I X-ray, γγ-coin; deduced delayed fission probability, relevance to two-body meson-exchange currents investigation.

doi: 10.1007/BF01291603
Citations: PlumX Metrics


1990TA10      Nucl.Phys. A511, 573 (1990)

A.Taal, P.David, H.Hanscheid, J.H.Koch, C.T.A.M.de Laat, W.Lourens, F.Risse, Ch.F.G.Rosel, A.van der Schaaf, W.Schrieder, J.Konijn

Deeply Bound 1s and 2p States in Pionic Atoms

NUCLEAR REACTIONS 24Mg, 27Al, 28Si(π-, xnyp), E at rest; measured prompt, delayed neutron, X-ray, γ-spectra. 93Nb, Ru, Ag, Cd(π-, X), E at rest; measured X-ray spectra; deduced strong interaction shifts, widths.

ATOMIC PHYSICS, Mesic-Atoms 24Mg, 27Al, 28Si(π-, xnyp), E at rest; measured prompt, delayed neutron, X-ray, γ-spectra. 93Nb, Ru, Ag, Cd(π-, X), E at rest; measured X-ray spectra; deduced strong interaction shifts, widths.

doi: 10.1016/0375-9474(90)90111-X
Citations: PlumX Metrics


1989KE02      Phys.Lett. 216B, 244 (1989)

G.Kernel, D.Korbar, P.Krizan, M.Mikuz, F.Sever, A.Stanovnik, M.Staric, D.Zavrtanik, C.W.E.van Eijk, R.W.Hollander, W.Lourens, E.G.Michaelis, N.W.Tanner, S.A.Clark, J.Jovanovich, J.D.Davies, J.Lowe, S.M.Playfer, and the OMICRON Collaboration

Cross Section Measurement of the π-p → π-π+n Reaction Near Threshold

NUCLEAR REACTIONS 1H(π-, π-π+), E at 295-450 MeV/c; measured σ vs momentum; deduced chiral symmetry breaking parameter.

doi: 10.1016/0370-2693(89)91403-2
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1989KE06      Phys.Lett. 225B, 198 (1989)

G.Kernel, D.Korbar, P.Krizan, M.Mikuz, F.Sever, A.Stanovnik, M.Staric, D.Zavrtanik, C.W.E.van Eijk, R.W.Hollander, W.Lourens, E.G.Michaelis, N.W.Tanner, S.A.Clark, J.V.Jovanovich, J.D.Davies, J.Lowe, S.M.Playfer, and the OMICRON Collaboration

Measurement of π-p → π-0 Reaction Near Threshold and Breaking of Chiral Symmetry

NUCLEAR REACTIONS 1H(π-, π-π0), E at 295-450 MeV/c; measured σ(E); deduced chiral symmetry breaking parameter.

doi: 10.1016/0370-2693(89)91036-8
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1987DE33      J.Phys.(London) G13, 1283 (1987)

C.T.A.M.de Laat, P.Polak, A.Taal, J.Konijn, W.Lourens, A.H.Wapstra

The Positron Decay Energy of 132Cs

RADIOACTIVITY 132Cs(β+) [from 134Ba(d, α), E=19.8 MeV; 133Cs(γ, n), E=108 MeV bremsstrahlung]; measured Eγ, Iγ, γγ-coin, γγ(θ); deduced Q(β+), log ft. 132Xe deduced levels, J, δ(E2/M1).

doi: 10.1088/0305-4616/13/10/016
Citations: PlumX Metrics


1987PL02      J.Phys.(London) G13, 297 (1987)

S.M.Playfer, W.van Doesburg, A.G.Zephat, T.Bressani, E.Chiavassa, S.Costa, J.D.Davies, G.Dellacasa, C.W.E.van Eijk, M.Gallio, R.W.Hollander, J.V.Jovanovich, G.Kernel, W.Lourens, J.Lowe, E.G.Michaelis, A.Musso, F.Sever, F.Siohan, A.Stanovnik, N.W.Tanner

π-p Bremsstrahlung at 300 MeV/c

NUCLEAR REACTIONS 1H(π-, π-'γ), E at 300 MeV/c; measured bremsstahlung σ(Eγ, θγ, θπ). Gas Cerenkov counters, tof.

doi: 10.1088/0305-4616/13/3/005
Citations: PlumX Metrics


1986KE13      Nucl.Instrum.Methods Phys.Res. A244, 367 (1986)

G.Kernel, D.Korbar, P.Krizan, M.Mikuz, F.Sever, A.Stanovnik, C.W.E.van Eijk, R.W.Hollander, W.Lourens, A.S.Clark, J.D.Davies, N.W.Tanner, E.G.Michaelis, S.M.Playfer, J.Lowe, J.V.Jovanovich

Design and Performance of a Magnetic Spectrometer for the Study of πp → ππN Reactions near Threshold

NUCLEAR REACTIONS 1H(π-, π-π+), E=400 MeV/c; measured missing mass spectrum. 1H(π-, π-π+), E at 300-460 MeV/c; measured σ(E). 1H(π-, π-), E at 400 MeV/c; measured σ(θ). Multi-arm magentic spectrometer.

doi: 10.1016/0168-9002(86)91060-0
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1985TA10      Phys.Lett. 156B, 296 (1985)

A.Taal, J.F.M.D'Achard van Enschut, J.B.R.Berkhout, W.Duinker, C.W.E.Van Eijk, W.H.A.Hesselink, P.J.van den Hoek, T.J.Ketel, J.H.Koch, J.Konijn, C.T.A.M.de Laat, W.Lourens, G.van Middelkoop, W.Poeser, T.Prins, A.H.Wapstra

Anomalous Strong Interaction in Pionic Mg

NUCLEAR REACTIONS Mg(π-, X), E at rest; measured pionic E X-ray, I X-ray; deduced strong interaction shifts, widths, anomalies.

ATOMIC PHYSICS, Mesic-Atoms Mg; measured pionic X-rays; deduced strong interaction shifts, widths, anomalies.

doi: 10.1016/0370-2693(85)91612-0
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1984CO17      Phys.Rev. C30, 1267 (1984)

J.D.Cole, J.H.Hamilton, A.V.Ramayya, W.Lourens, B.van Nooijen, H.Kawakami, L.A.Mink, E.H.Spejewski, H.K.Carter, R.L.Mlekodaj, G.A.Leander, L.L.Riedinger, C.R.Bingham, E.F.Zganjar, J.L.Wood, R.W.Fink, K.S.Toth, B.D.Kern, K.S.R.Sastry

Decay of 188Tl and Observed Shape Coexistence in the Bands of 188Hg

RADIOACTIVITY 188Tl(β+), (EC) [from 181Ta(16O, 9n), E=143-145 MeV; 180W(14N, 6n), E=184-188 MeV]; measured Eγ, Iγ, I(ce), γγ-, γ(ce)-coin. 188Tl levels deduced T1/2. 188Hg deduced levels, J, π, γ-branching, δ, ICC.

doi: 10.1103/PhysRevC.30.1267
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1984DA02      Phys.Lett. 136B, 24 (1984)

J.F.M.d'Achard van Enschut, J.B.R.Berkhout, W.Duinker, C.W.E.van Eijk, W.H.A.Hesselink, T.Johansson, T.J.Ketel, J.H.Koch, J.Konijn, C.T.A.M.de Laat, W.Lourens, G.van Middelkoop, W.Poeser

Anomalous Strong Interaction Shifts and Widths of the 3d State in Pionic Pt and Au

ATOMIC PHYSICS, Mesic-Atoms Pt, Au; measured pionic E X-ray, I X-ray; deduced strong interaction monopole shifts, widths.

doi: 10.1016/0370-2693(84)92048-3
Citations: PlumX Metrics


1982BA72      Phys.Lett. 118B, 319 (1982)

E.Bason, T.Bressani, E.Chiavassa, S.Costa, G.Dellacasa, M.Gallio, A.Musso, M.Rapetti, W.van Doesburg, A.G.Zephat, R.van Dantzig, J.D.Davies, S.M.Playfer, K.Bos, D.Frame, E.G.Michaelis, C.W.E.van Eijk, W.Lourens, G.Kernel, A.Stanovnik, N.W.Tanner, N.Mirfakhrai

π-16O Backward Elastic Scattering in the (3, 3) Resonance Region

NUCLEAR REACTIONS 16O(π-, π-), E=115, 163, 244 MeV; measured σ(θ). Optical model analysis.

doi: 10.1016/0370-2693(82)90193-9
Citations: PlumX Metrics


1982RO07      Phys.Rev. C26, 97 (1982)

R.M.Ronningen, R.S.Grantham, J.H.Hamilton, R.B.Piercey, A.V.Ramayya, B.van Nooijen, H.Kawakami, W.Lourens, R.S.Lee, W.K.Dagenhart, L.L.Riedinger

Reduced Transition Probabilities of Vibrational States in 156,158Dy, 162,164Er, and 168Yb

NUCLEAR REACTIONS 156,158Dy, 162,164Er, 168Yb(α, α'), E=12-16 MeV; measured σ. 156,158Dy, 162,164Er, 168Yb levels deduced B(λ). Enriched targets.

doi: 10.1103/PhysRevC.26.97
Citations: PlumX Metrics


1982VA20      Phys.Rev. A26, 2749 (1982)

C.W.E.van Eijk, J.P.Wagenaar, F.Bergsma, W.Lourens

Double K-Shell-Vacancy Production in the Decays of 181W and 165Er

RADIOACTIVITY 181W(EC), 165Er(EC); measured (X-ray)(X-ray)-coin; deduced double K-shell vacancy production.

doi: 10.1103/PhysRevA.26.2749
Citations: PlumX Metrics


1977RO08      Phys.Rev. C15, 1671 (1977)

R.M.Ronningen, J.H.Hamilton, A.V.Ramayya, L.Varnell, G.Garcia-Bermudez, J.Lange, W.Lourens, L.L.Riedinger, R.L.Robinson, P.H.Stelson, J.L.C.Ford, Jr.

Reduced Transition Probabilities of Vibrational States in 154-160Gd and 176-180Hf

NUCLEAR REACTIONS 154,156,158,160Gd, 176,178,180Hf(α, α'), E=11-17 MeV; measured σ(E, Eα', θ), Coulomb excitation. 154,156,158,160Gd, 176,178,180Hf levels deduced B(λ), M(λ). Enriched targets.

doi: 10.1103/PhysRevC.15.1671
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1977RO26      Phys.Rev. C16, 2208 (1977)

R.M.Ronningen, J.H.Hamilton, L.Varnell, J.Lange, A.V.Ramayya, G.Garcia-Bermudez, W.Lourens, L.L.Riedinger, F.K.McGowan, P.H.Stelson, R.L.Robinson, J.L.C.Ford, Jr.

E2 and E4 Reduced Matrix Elements of 154,156,158,160Gd and 176,178,180Hf

NUCLEAR REACTIONS 154,156,158,160Gd, 176,178,180Hf(α, α'), E=11.5-14 MeV; measured Coulomb excitation σ(E). 154,156,158,160Gd, 176,178,180Hf levels deduced β2, β4.

doi: 10.1103/PhysRevC.16.2208
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1976HA25      Izv.Akad.Nauk SSSR, Ser.Fiz. 40, 2 (1976); Bull.Acad.Sci.USSR, Phys.Ser. 40, No.1, 1 (1976)

J.H.Hamilton, K.R.Baker, C.R.Bingham, E.L.Bosworth, H.K.Carter, J.D.Cole, R.W.Fink, G.Garcia Bermudez, G.W.Gowdy, K.J.Hofstetter, M.A.Ijaz, A.C.Kahler, B.D.Kern, W.Lourens, B.Martin, R.L.Mlekodaj, A.V.Ramayya, L.L.Riedinger, W.D.Schmidt-Ott, E.H.Spejewski, B.N.Subba Rao, E.L.Robinson, K.S.Toth, F.Turner, J.L.Weil, J.L.Wood, A.Xenoulis, E.F.Zganjar

New Isotope 193Pb and the Structure of 193Tl; Shape Coexistence in 188Hg and in 189Au; and a New Ion Source: Recent UNISOR Research

RADIOACTIVITY 193Pb; measured T1/2, Eγ, Iγ, γγ-coin. 188Tl; measured Eγ, Iγ, γγ-coin, I(ce), γce-coin. 189Tl, 189Hg; measured Eγ, Iγ, γγ-, γX-, γce-coin. 188,189Hg, 193Tl deduced levels, J, π, shape isomers.


1976RO08      Nucl.Phys. A261, 439 (1976)

R.M.Ronningen, A.V.Ramayya, J.H.Hamilton, W.Lourens, J.Lange, H.K.Carter, R.O.Sayer

Mean Life of the 854 keV 0+ State in 74Se and the Coexistence Model

RADIOACTIVITY 74Br [from 58Ni(16O, 2p), E=46 MeV]; measured γγ(t). 74Se level deduced T1/2, B(E2).

doi: 10.1016/0375-9474(76)90157-3
Citations: PlumX Metrics


1975HA27      Phys.Rev.Lett. 35, 562 (1975)

J.H.Hamilton, A.V.Ramayya, E.L.Bosworth, W.Lourens, J.D.Cole, B.Van Nooijen, G.Garcia-Bermudez, B.Martin, B.N.Subba Rao, H.Kawakami, L.L.Riedinger, C.R.Bingham, F.Turner, E.F.Zganjar, E.H.Spejewski, H.K.Carter, R.L.Mlekodaj, W.D.Schmidt-Ott, K.R.Baker, R.W.Fink, G.M.Gowdy, J.L.Wood, A.Xenoulis, B.D.Kern, K.J.Hofstetter, J.L.Weil, K.S.Toth, M.A.Ijaz, K.F.R.Faftry

Crossing of Near-Spherical and Deformed Bands in 186,188Hg and New Isotopes 186,188Tl

RADIOACTIVITY 186,188Tl [from 181Ta(16O, 9nγ), (16O, 11nγ), E=143-145 MeV]; measured T1/2, Eγ, Iγ, γce-, γγ-coin, γ(t); deduced ICC. 186,188Hg deduced levels, J, π, K.

doi: 10.1103/PhysRevLett.35.562
Citations: PlumX Metrics


1971LO15      Nucl.Phys. A171, 337 (1971)

W.Lourens, B.O.Ten Brink, A.H.Wapstra

The Decay of 227Ra

RADIOACTIVITY 227Ra[from 226Ra(n, γ)]; measured T1/2, Eβ, Iβ, Eγ, Iγ, γγ-coin; deduced Q, log ft. 227Ac deduced levels, J, π. Natural target.

doi: 10.1016/0375-9474(71)90027-3
Citations: PlumX Metrics


1971LO19      Z.Phys. 247, 147 (1971)

W.Lourens, A.H.Wapstra

Levels in 222Rn

RADIOACTIVITY 226Ra; measured Eγ, Iγ, γγ-coin. 222Rn deduced levels, γ-branching. Ge(Li), NaI detectors.

doi: 10.1007/BF01395290
Citations: PlumX Metrics


1970LO02      Nucl.Phys. A152, 463 (1970)

W.Lourens, B.O.ten Brink, A.H.Wapstra

The Decay of 230Pa

RADIOACTIVITY 230Pa [from 232Th(p, 3n)]; measured Eβ, Iβ, Eγ, Iγ, I(ce), I(X-ray), γγ-, Xγ-coin; deduced Q, log ft. 230U, 230Th deduced levels J, π, ICC, γ-multipolarity. Natural target.

doi: 10.1016/0375-9474(70)90925-5
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1969LO02      Priv.Comm.(May 1969); see 70Lo02

W.Lourens, B.ten Brink


1966LO03      Priv.Comm. (1966)

W.Lourens, A.H.Wapstra


1966VA14      Nucl.Phys. 84, 380 (1966)

B.van Nooijen, H.van Krugten, W.Lourens, A.M.van der Kraan

Beta-Gamma Circular Polarization in the Decay of 48Sc

RADIOACTIVITY 48Sc [from 48Ca(p, n)]; measured βγ-circular polarization. 48Sc deduced J. Enriched target.

doi: 10.1016/0029-5582(66)90376-2
Citations: PlumX Metrics


1965VA02      Nucl.Phys. 63, 241 (1965)

B.Van Nooijen, W.Lourens, H.Van Krugten, A.H.Wapstra

The Decay of 14.6 h 86Y

RADIOACTIVITY 86Y[from 86Sr(d, 2n)]; measured Eβ, ce, γ, Iβ, ce, γ, ICC, βγ-, γγ-coin, γγ(θ). 86Sr deduced levels, J, π, β-shape, log ft. Enriched target.

doi: 10.1016/0029-5582(65)90341-X
Citations: PlumX Metrics


1963HA32      Physica 29, 681 (1963)

N.Hazewindus, W.Lourens, A.Scheepmaker, A.H.Wapstra

Gamma Ray Transitions in Cl35

NUCLEAR STRUCTURE 35Cl; measured not abstracted; deduced nuclear properties.

doi: 10.1016/S0031-8914(63)80226-8
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