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NSR database version of April 26, 2024.

Search: Author = R.H.Mayer

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1999MA06      Phys.Rev. C59, 665 (1999)

N.A.Matt, N.Benczer-Koller, J.Holden, G.Kumbartzki, R.H.Mayer, M.Satteson, R.Tanczyn

Competition between Single-Particle and Collective Excitations in N = 88 Nuclei: Measurement of g(4₁⁺)/g(2₁⁺) in ¹⁵²Gd

NUCLEAR REACTIONS ¹⁵²Gd(³²S, ³²S'), E=100 MeV; ¹⁵²Gd(⁵⁸Ni, ⁵⁸Ni'), E=180, 212.5 MeV; measured Eγ, Iγ(θ, H, t) following Coulomb excitation. ¹⁵²Gd levels deduced g factors, single-particle, collective contributions. Transient field technique.

doi: 10.1103/PhysRevC.59.665
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1999WE02      Nucl.Phys. A645, 191 (1999)

L.Weissman, R.H.Mayer, N.Benczer-Koller, C.Broude, J.A.Cizewski, M.Hass, J.Holden, R.V.F.Janssens, G.Kumbartzki, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, N.Matt, D.P.McNabb, M.Satteson

Time-Decay History of Normal-Deformation High-Spin States in ^{193, 194}Hg

NUCLEAR REACTIONS ¹⁵⁰Nd(⁴⁸Ca, 5n), (⁴⁸Ca, 4n), E=203 MeV; measured Eγ, Iγ, γγ-coin, DSA. ^193,194Hg deduced high-spin levels, J, π, T_1/2, non-collective configurations. Gammasphere array.

doi: 10.1016/S0375-9474(98)00604-6
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1999WE04      Phys.Lett. 446B, 22 (1999)

L.Weissman, R.H.Mayer, G.Kumbartzki, N.Benczer-Koller, C.Broude, J.A.Cizewski, M.Hass, J.Holden, R.V.F.Janssens, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, D.P.McNabb, M.Satteson

Single Particle Signatures in High-Spin, Quasicontinuum States in ^{193, 194}Hg from g-Factor Measurements

NUCLEAR REACTIONS ¹⁵⁰Nd(⁴⁸Ca, 5n), (⁴⁸Ca, 4n), E=203 MeV; measured Eγ, Iγ(θ, H, t), γγ-coin. ^193,194Hg deduced high-spin, quasicontinuum states average g factors, quasineutron configurations contributions. Gammasphere array.

doi: 10.1016/S0370-2693(98)01514-7
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1998MA71      Phys.Rev. C58, R2640 (1998)

R.H.Mayer, G.Kumbartzki, L.Weissman, N.Benczer-Koller, C.Broude, J.A.Cizewski, M.Hass, J.Holden, R.V.F.Janssens, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, D.P.McNabb, M.Satteson

First Direct Measurements of g Factors of the Three Superdeformed Bands of ¹⁹⁴Hg

NUCLEAR REACTIONS ¹⁵⁰Nd(⁴⁸Ca, 4n), E=203 MeV; measured Eγ, Iγ(θ, t), γγ-coin. ¹⁹⁴Hg deduced superdeformed bands average g factors. Gammasphere array, transient field technique.

doi: 10.1103/PhysRevC.58.R2640
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1998SP03      Phys.Rev. C57, 2181 (1998)

K.-H.Speidel, N.Benczer-Koller, G.Kumbartzki, C.Barton, A.Gelberg, J.Holden, G.Jakob, N.Matt, R.H.Mayer, M.Satteson, R.Tanczyn, L.Weissman

Shell Closure Effects in the Stable ^74-82Se Isotopes from Magnetic Moment Measurements using Projectile Excitation and the Transient Field Technique

NUCLEAR REACTIONS Ta(⁷⁴Se, ⁷⁴Se'), (⁷⁶Se, ⁷⁶Se'), (⁷⁸Se, ⁷⁸Se'), (⁸⁰Se, ⁸⁰Se'), (⁸²Se, ⁸²Se'), E=230-262 MeV; measured Eγ, Iγ(H, θ) in polarized Gd following projectile Coulomb excitation. ^{74,76,78,80,82}Se deduced g-factors. Multilayer target. Comparison with IBM calculations.

doi: 10.1103/PhysRevC.57.2181
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1998WE23      Nuovo Cim. 111A, 675 (1998)

L.Weissman, R.H.Mayer, N.Benczer-Koller, C.Broude, M.Hass, G.Kumbartzki

Average g-Factor of High-Spin Nuclear States in the Quasi-Continuum Region

NUCLEAR REACTIONS ¹⁵⁰Nd(⁴⁸Ca, 5n), (⁴⁸Ca, 4n), E=203 MeV; measured Eγ, Iγ(θ, H, t), γγ-coin. ^193,194Hg deduced high-spin transitions, quasicontinuum states average g factors. Gammasphere array, transient field technique.

1998ZH09      Nucl.Phys. A628, 386 (1998)

C.T.Zhang, P.Bhattacharyya, P.J.Daly, Z.W.Grabowski, R.H.Mayer, M.Sferrazza, R.Broda, B.Fornal, W.Krolas, T.Pawlat, D.Bazzacco, S.Lunardi, C.Rossi Alvarez, G.de Angelis

Yrast Excitations in A = 126-131 Te Nuclei from Deep Inelastic ¹³⁰Te + ⁶⁴Ni Reactions

NUCLEAR REACTIONS ¹³⁰Te(⁶⁴Ni, X), E=275 MeV; measured few-neutron transfer reactions associated Eγ, Iγ, γγ(θ), γγ(t). ^{126,127,128,129,130,131}Te deduced levels, probable J, π, isomers T_1/2, single-particle, collective aspects. Enriched targets, Compton-supressed Ge detector array.

doi: 10.1016/S0375-9474(97)00617-9
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1997NI01      Phys.Lett. 392B, 18 (1997)

D.Nisius, R.V.F.Janssens, E.F.Moore, P.Fallon, B.Crowell, T.Lauritsen, G.Hackman, I.Ahmad, H.Amro, S.Asztalos, M.P.Carpenter, P.Chowdhury, R.M.Clark, P.J.Daly, M.A.Deleplanque, R.M.Diamond, S.M.Fischer, Z.W.Grabowski, T.L.Khoo, I.Y.Lee, A.O.Macchiavelli, R.H.Mayer, F.S.Stephens, A.V.Afanasjev, I.Ragnarsson

Differential Lifetime Measurements and Configuration-Dependent Quadrupole Moments for Superdeformed Bands in Nuclei Near ¹⁵²Dy

NUCLEAR REACTIONS ¹²²Sn(³⁴S, 5n), (³⁴S, 4n), (³⁴S, 4np), E=175 MeV; measured γγ-coin, energy correlations, DSAM. ^151,152Dy, ¹⁵¹Tb deduced levels, J, π, superdeformed bands, T_1/2, quadrupole moments, shape polarization related features.

doi: 10.1016/S0370-2693(96)01517-1
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1995BR10      Phys.Rev.Lett. 74, 868 (1995)

R.Broda, B.Fornal, W.Krolas, T.Pawlat, D.Bazzacco, S.Lunardi, C.Rossi-Alvarez, R.Menegazzo, G.de Angelis, P.Bednarczyk, J.Rico, D.De Acuna, P.J.Daly, R.H.Mayer, M.Sferrazza, H.Grawe, K.H.Maier, R.Schubart

N = 40 Neutron Subshell Closure in the ⁶⁸Ni Nucleus

NUCLEAR REACTIONS ¹³⁰Te(⁶⁴Ni, X), E=275 MeV; measured γγ-coin; deduced evidence for ⁶⁸Ni. ⁶⁸Ni deduced levels, isomer T_1/2, J, π, configuration.

doi: 10.1103/PhysRevLett.74.868
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1995DA26      Phys.Scr. T56, 94 (1995)

P.J.Daly, R.H.Mayer, D.Nisius, I.G.Bearden, P.Bhattacharyya, L.Richter, M.Sferrazza, Z.W.Grabowski, R.Broda, B.Fornal, I.Ahmad, M.P.Carpenter, R.G.Henry, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, Y.Liang, J.Blomqvist

Yrast Excitations of Heavy Tin Region Nuclei

NUCLEAR REACTIONS ¹²⁴Sn(¹³⁶Xe, X), E=665 MeV; ¹²⁴Sn(⁸⁰Se, X), E=344 MeV; compiled, reviewed γγ-coin data. ^119,121,123Sn deduced yrast isomers, decay characteristics, levels, J, π. Model comparison. Thick targets.

doi: 10.1088/0031-8949/1995/T56/015
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1995FO16      Acta Phys.Pol. B26, 357 (1995)

B.Fornal, R.Broda, W.Krolas, T.Pawlat, P.J.Daly, I.G.Bearden, Z.W.Grabowski, R.H.Mayer, D.Nisius, L.Richter, M.Sferrazza, M.Carpenter, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, D.Bazzacco, S.Lunardi, C.Rossi-Alvarez, G.de Angelis, P.Bednarczyk, H.Grawe, K.H.Maier, R.Schubart

Deep-Inelastic Reactions - A New Tool for Nuclear Spectroscopy

NUCLEAR REACTIONS ⁹²Mo(⁶⁰Ni, X), E=255 MeV; ¹⁰⁶Cd(⁵⁴Fe, X), E=255 MeV; ¹²⁴Sn(⁸⁰Se, X), E=344 MeV; ¹²⁴Sn(⁷⁶Ge, X), E not given; ²⁰⁸Pb(⁶⁴Ni, X), E=350 MeV; ¹³⁰Te(⁶⁴Ni, X), E=275 MeV; ¹⁶⁰Gd(³⁴S, X), (³⁶S, X), (³⁷Cl, X), E not given; compiled, reviewed binary reaction products distribution data. ³³Si, ³⁴P, ³⁹Cl, ^64,65,66,67Ni, ^{119,121,122,123,124}Sn deduced level systematics.

1995MO01      Phys.Rev. C51, 115 (1995)

E.F.Moore, M.P.Carpenter, Y.Liang, R.V.F.Janssens, I.Ahmad, I.G.Bearden, P.J.Daly, M.W.Drigert, B.Fornal, U.Garg, Z.W.Grabowski, H.L.Harrington, R.G.Henry, T.L.Khoo, T.Lauritsen, R.H.Mayer, D.Nisius, W.Reviol, M.Sferrazza

Collectivity of Dipole Bands in ¹⁹⁶Pb

NUCLEAR REACTIONS ¹⁷⁰Er(³⁰Si, 4nγ), E=142 MeV; measured Eγ, Iγ, γγ(θ), oriented nuclei, DSA. ¹⁹⁶Pb deduced high-spin levels J, π, T_1/2, B(λ). Cranked shell model.

doi: 10.1103/PhysRevC.51.115
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1995NI03      Phys.Rev. C51, R1061 (1995)

D.Nisius, R.V.F.Janssens, T.L.Khoo, I.Ahmad, D.Blumenthal, M.P.Carpenter, B.Crowell, D.Gassmann, T.Lauritsen, W.C.Ma, J.H.Hamilton, A.V.Ramayya, P.Bhattacharyya, C.T.Zhang, P.J.Daly, Z.W.Grabowski, R.H.Mayer

Superdeformed Band in ¹⁵⁴Dy

NUCLEAR REACTIONS ¹²²Sn(³⁶S, 4n), E=165 MeV; measured Eγ, relative Iγ, γγγ-coin. ¹⁵⁴Dy deduced high-spin levels, J, π, superdeformation band transitions.

doi: 10.1103/PhysRevC.51.R1061
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1995NI06      Phys.Lett. 346B, 15 (1995)

D.Nisius, R.V.F.Janssens, P.Fallon, B.Crowell, I.Ahmad, C.W.Beausang, M.P.Carpenter, B.Cederwall, P.J.Daly, M.A.Deleplanque, R.M.Diamond, D.Gassmann, Z.W.Grabowski, R.G.Henry, T.L.Khoo, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, R.H.Mayer, F.S.Stephens, P.J.Twin

' Identical ' Superdeformed Band in ¹⁵¹Dy: Further evidence for the pseudospin coupling scheme

NUCLEAR REACTIONS ¹²²Sn(³⁴S, 5n), E=175 MeV; measured Eγ, Iγ, γγγ-coin. ¹⁵¹Dy deduced high-spin levels, J, π, superdeformed band.

doi: 10.1016/0370-2693(95)00013-B
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1995NI10      Phys.Rev. C52, 1355 (1995)

D.Nisius, R.V.F.Janssens, I.G.Bearden, R.H.Mayer, I.Ahmad, P.Bhattacharyya, B.Crowell, M.P.Carpenter, P.J.Daly, C.N.Davids, Z.W.Grabowski, D.J.Henderson, R.G.Henry, R.Hermann, T.L.Khoo, T.Lauritsen, H.T.Penttila, L.Ciszewski, C.T.Zhang

Conversion Electron Spectroscopy at the Fragment Mass Analyzer Focal Plane: Studies of isomeric decays near the proton drip line

RADIOACTIVITY ^149,150Er(EC) [from ⁹⁴Mo(⁵⁸Ni, X), E=250 MeV]; ^151,152Yb(EC) [from ⁹⁶Ru(⁵⁸Ni, X), E=250 MeV]; measured Eγ, Iγ, I(ce)-, γ(ce)-coin, T_1/2; deduced isomer decay transitions γ-multipolarity, levels, J, π.

doi: 10.1103/PhysRevC.52.1355
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1995ZH37      Z.Phys. A353, 11 (1995)

C.T.Zhang, M.Sferrazza, R.H.Mayer, Z.W.Grabowski, P.Bhattacharyya, P.J.Daly, R.Broda, B.Fornal, W.Krolas, T.Pawlat, G.de Angelis, D.Bazzacco, S.Lunardi, C.Rossi-Alvarez

Yrast Excitations in ¹²⁹Te

NUCLEAR REACTIONS ¹³⁰Te(⁶⁴Ni, X), E=275 MeV; measured γγ-coin. ¹²⁹Te deduced high-spin levels, J, π, configuration, isomer decay, T_1/2. Product ^129mSb(β-decay) data also used.

RADIOACTIVITY ^129mSb(β^-) [from ¹³⁰Te(⁶⁴Ni, X), E=275 MeV]; measured β-decay; deduced log ft. ¹²⁹Te deduced β-decay branching to high-spin levels. Data from ¹³⁰Te(⁶⁴Ni, X) for direct ¹²⁹Te production also included.

doi: 10.1007/BF01297719
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1994FO04      Phys.Rev. C49, 2413 (1994)

B.Fornal, R.H.Mayer, I.G.Bearden, Ph.Benet, R.Broda, P.J.Daly, Z.W.Grabowski, I.Ahmad, M.P.Carpenter, P.B.Fernandez, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, E.F.Moore, M.Drigert

Gamma Ray Studies of Neutron-Rich sdf Shell Nuclei Produced in Heavy Ion Collisions

NUCLEAR REACTIONS ¹⁶⁰Gd(³⁴S, X), E=159 MeV; ¹⁶⁰Gd(³⁶S, X), E=159 MeV; ¹⁶⁰Gd(³⁷Cl, X), E=167 MeV; measured γγ-coin; deduced reaction mechanism. ^38,36S, ^37,39Cl, ^34,35P, ^34,33Si deduced level schemes.

doi: 10.1103/PhysRevC.49.2413
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1994MA48      Phys.Lett. 336B, 308 (1994)

R.H.Mayer, D.T.Nisius, I.G.Bearden, P.Bhattacharyya, L.Richter, M.Sferrazza, Z.W.Grabowski, P.J.Daly, R.Broda, B.Fornal, I.Ahmad, M.P.Carpenter, R.G.Henry, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, Y.Liang, J.Blomqvist

Gamma-Ray Studies of ^119,121,123Sn Isomers Formed in Deep Inelastic Heavy Ion Collisions

NUCLEAR REACTIONS ^122,124Sn(⁷⁶Ge, X), E=325 MeV; measured γγ-coin. ^119,121,123Sn deduced yrast high-spin isomers, J, π, decay features, B(λ), configurations.

doi: 10.1016/0370-2693(94)90537-1
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1993HU01      Phys.Rev. C47, R1337 (1993)

J.R.Hughes, Y.Liang, R.V.F.Janssens, A.Kuhnert, J.A.Becker, I.Ahmad, I.G.Bearden, M.J.Brinkman, J.Burde, M.P.Carpenter, J.A.Cizewski, P.J.Daly, M.A.Deleplanque, R.M.Diamond, J.E.Draper, C.Duyar, B.Fornal, U.Garg, Z.W.Grabowski, E.A.Henry, R.G.Henry, W.Hesselink, N.Kalantar-Nayestanaki, W.H.Kelly, T.L.Khoo, T.Lauritsen, R.H.Mayer, D.Nissius, J.R.B.Oliveira, A.J.M.Plompen, W.Reviol, E.Rubel, F.Soramel, F.S.Stephens, M.A.Stoyer, D.Vo, T.F.Wang

Collective Oblate Bands in ¹⁹⁶Pb

NUCLEAR REACTIONS ¹⁷⁰Er(³⁰Si, 4n), E=142-151 MeV; ¹⁷⁶Yb(²⁶Mg, 6n), E=138 MeV; measured γγ-coin. ¹⁹⁶Pb deduced levels, J, π, band structure, B(λ) ratio, shape features.

doi: 10.1103/PhysRevC.47.R1337
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1993MO19      Phys.Rev. C48, 2261 (1993)

E.F.Moore, Y.Liang, R.V.F.Janssens, M.P.Carpenter, I.Ahmad, I.G.Bearden, P.J.Daly, M.W.Drigert, B.Fornal, U.Garg, Z.W.Grabowski, H.L.Harrington, R.G.Henry, T.L.Khoo, T.Lauritsen, R.H.Mayer, D.Nisius, W.Reviol, M.Sferrazza

Spectroscopy of the Superdeformed Band in ¹⁹⁶Pb

NUCLEAR REACTIONS ¹⁷⁰Er(³⁰Si, 4n), E=142-151 MeV; measured Eγ, Iγ, γγ-coin, DSA. ¹⁹⁶Pb deduced superdeformed band transitions, intrinsic quadrupole moment, dynamic moment of inertia. Model comparison.

doi: 10.1103/PhysRevC.48.2261
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1993NI05      Phys.Rev. C47, 1929 (1993)

D.Nisius, B.Fornal, I.G.Bearden, R.Broda, R.H.Mayer, Z.W.Grabowski, P.J.Daly, C.N.Davids, I.Ahmad, B.B.Back, K.Bindra, M.P.Carpenter, W.Chung, D.Henderson, R.G.Henry, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, Y.Liang, F.Soramel, A.V.Ramayya

Yrast Isomers in Exotic N = 81 Nucleus ¹⁵¹Yb Studied Using a Fragment Mass Analyzer

NUCLEAR REACTIONS ⁹⁶Ru(⁵⁸Ni, X), E=255 MeV; measured γ(recoil nucleus)-coin, Eγ, Iγ. ¹⁵¹Yb deduced yrast isomers, T_1/2, decay scheme. Fragment mass analyzer.

doi: 10.1103/PhysRevC.47.1929
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1992BR06      Phys.Rev.Lett. 68, 1671 (1992)

R.Broda, R.H.Mayer, I.G.Bearden, Ph.Benet, P.J.Daly, Z.W.Grabowski, M.P.Carpenter, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, E.F.Moore, S.Lunardi, J.Blomqvist

Yrast Isomers in Tin Nuclei from Heavy Ion Collisions and the νh_11/2 Subshell Filling

NUCLEAR REACTIONS ¹²⁴Sn(⁷⁶Ge, X), E=325 MeV; measured Eγ, Iγ, γγ-coin. ^122,124Sn deduced levels, J, π, T_1/2, B(λ).

doi: 10.1103/PhysRevLett.68.1671
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1992MA27      Z.Phys. A342, 247 (1992)

R.H.Mayer, B.Fornal, R.Broda, I.G.Bearden, Z.W.Grabowski, S.Lunardi, P.J.Daly, T.Lauritsen, M.P.Carpenter, R.V.F.Janssens, T.L.Khoo, Y.Liang

New (19/2)⁺ Isomers in ¹¹⁹Sn, ¹²¹Sn and ¹²³Sn

NUCLEAR REACTIONS ^122,124Sn(⁸⁰Se, X), E=344 MeV; measured Eγ, Iγ, γγ-coin. ^119,121,123Sn deduced (19/2)⁺ yrast isomers, T_1/2, decay schemes.

doi: 10.1007/BF01288478
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