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NSR database version of April 25, 2024.

Search: Author = P.Semmes

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2003KA04      Phys.Rev.Lett. 90, 012502 (2003)

M.Karny, R.K.Grzywacz, J.C.Batchelder, C.R.Bingham, C.J.Gross, K.Hagino, J.H.Hamilton, Z.Janas, W.D.Kulp, J.W.McConnell, M.Momayezi, A.Piechaczek, K.P.Rykaczewski, P.A.Semmes, M.N.Tantawy, J.A.Winger, C.H.Yu, E.F.Zganjar

Fine Structure in Proton Emission from ¹⁴⁵Tm Discovered with Digital Signal Processing

RADIOACTIVITY ¹⁴⁵Tm(p) [from ⁹²Mo(⁵⁸Ni, 4np)]; measured Ep, T_1/2; deduced fine structure in proton decay, branching ratio. ¹⁴⁴Er deduced level, J, π, deformation. ¹⁴⁵Tm deduced configuration. Digital signal processing. Particle-core vibration coupling model analysis.

doi: 10.1103/PhysRevLett.90.012502
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2002PE05      Phys.Rev. C65, 054324 (2002)

C.M.Petrache, G.Lo Bianco, D.Bazzacco, S.Lunardi, R.Menegazzo, M.Nespolo, G.de Angelis, N.Blasi, V.I.Dimitrov, S.Frauendorf, P.Semmes, J.-Y.Zhang

Observation of a Doublet Band in the Nucleus ¹²⁸Pr

NUCLEAR REACTIONS ⁹²Mo(⁴⁰Ca, n3p), E=190 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (recoil)γ-coin. ¹²⁸Pr deduced high-spin levels, J, π, configurations, doublet band. Three-dimensional tilted-axis cranking model analysis.

doi: 10.1103/PhysRevC.65.054324
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2001HA47      Phys.Rev. C64, 031304 (2001)

D.J.Hartley, L.L.Riedinger, M.A.Riley, D.L.Balabanski, F.G.Kondev, R.W.Laird, J.Pfohl, D.E.Archer, T.B.Brown, R.M.Clark, M.Devlin, P.Fallon, I.M.Hibbert, D.T.Joss, D.R.LaFosse, P.J.Nolan, N.J.O'Brien, E.S.Paul, D.G.Sarantites, R.K.Sheline, S.L.Shepherd, J.Simpson, R.Wadsworth, J.-Y.Zhang, P.B.Semmes, F.Donau

Detailed Spectroscopy of the Chiral-Twin Candidate Bands in ¹³⁶Pm

NUCLEAR REACTIONS ¹⁰⁵Pd(³⁵Cl, 2n2p), E=173 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. ¹³⁶Pm deduced high-spin levels, J, π, configurations, B(M1), B(E2). Comparisons with neighboring nuclides, model predictions. Gammasphere, Microball arrays.

doi: 10.1103/PhysRevC.64.031304
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2001SE04      Nucl.Phys. A682, 239c (2001)

P.B.Semmes

Proton Emission from Spherical and Near-Spherical Nuclei

NUCLEAR STRUCTURE ¹¹³Cs, ¹⁴⁷Tm, ¹⁶⁶Ir, ¹⁶¹Re; calculated proton decay T_1/2. ¹⁵¹Lu; calculated level energies, configurations. Particle-core coupling.

doi: 10.1016/S0375-9474(00)00646-1
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2000GI01      Phys.Rev. C61, 014308 (2000)

T.N.Ginter, J.C.Batchelder, C.R.Bingham, C.J.Gross, R.Grzywacz, J.H.Hamilton, Z.Janas, M.Karny, S.H.Kim, J.F.Mas, J.W.McConnell, A.Piechaczek, A.V.Ramayya, K.Rykaczewski, P.B.Semmes, J.Szerypo, K.S.Toth, R.Wadsworth, C.-H.Yu, E.F.Zganjar

Proton Emission from ¹⁵⁰Lu

RADIOACTIVITY ^150,150mLu(p) [from ⁹⁶Ru(⁵⁸Ni, 3np)]; measured proton spectra, T_1/2. Recoil mass spectrometer.

doi: 10.1103/PhysRevC.61.014308
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1999BI14      Phys.Rev. C59, R2984 (1999)

C.R.Bingham, J.C.Batchelder, K.Rykaczewski, K.S.Toth, C.-H.Yu, T.N.Ginter, C.J.Gross, R.Grzywacz, M.Karny, S.H.Kim, B.D.MacDonald, J.Mas, J.W.McConnell, P.B.Semmes, J.Szerypo, W.Weintraub, E.F.Zganjar

Identification of a Proton-Emitting Isomer in ¹⁵¹Lu

RADIOACTIVITY ^151mLu(p) [from ⁹⁶Ru(⁵⁸Ni, 2np)]; measured Ep, T_1/2. ¹⁵¹Lu deduced level, J, π, spectroscopic factor. Comparison with model calculations. Energy level systematics discussed.

doi: 10.1103/PhysRevC.59.R2984
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1999RE05      Phys.Rev. C59, 1351 (1999)

W.Reviol, L.L.Riedinger, X.Z.Wang, J.-Y.Zhang, H.J.Jensen, G.B.Hagemann, R.A.Bark, P.O.Tjom, S.Leoni, T.Lonnroth, H.Schnack-Petersen, T.Shizuma, J.Wrzesinski, P.B.Semmes

Residual Interactions and Tilted Rotation in Odd-Odd ¹⁶⁴Tm

NUCLEAR REACTIONS ¹⁵⁰Nd(¹⁹F, 5n), E=85 MeV; measured Eγ, Iγ(θ), γγ(t). ¹⁶⁴Tm deduced high-spin levels, J, π, rotational bands, configurations, B(M1)/B(E2), isomeric states T_1/2. Nordball array.

NUCLEAR STRUCTURE ¹⁶⁴Tm; calculated rotational bands features, B(M1)/B(E2), signature splitting; deduced proton-neutron interaction role. Particle-rotor model, tilted-axis cranking model calculations.

doi: 10.1103/PhysRevC.59.1351
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1998BA20      Nucl.Phys. A630, 603 (1998)

R.A.Bark, H.Carlsson, S.J.Freeman, G.B.Hagemann, F.Ingebretsen, H.J.Jensen, T.Lonnroth, M.J.Piiparinen, I.Ragnarsson, H.Ryde, H.Schnack-Petersen, P.B.Semmes, P.O.Tjom

Band Structures and Proton-Neutron Interactions in ¹⁷⁴Ta

NUCLEAR REACTIONS ¹⁶⁰Gd(¹⁹F, 5n), E=103, 105 MeV; measured Eγ, Iγ, γγ-coin. ¹⁷⁴Ta deduced high-spin levels, J, π, rotational band structure, configurations, Nilsson assignments, alignments, B(M1)/B(E2) ratios, signature inversion, proton-neutron interactions, crossing frequencies.

doi: 10.1016/S0375-9474(97)00650-7
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1998KA56      Phys.Rev. C58, 3228 (1998)

R.A.Kaye, L.A.Riley, G.Z.Solomon, S.L.Tabor, P.Semmes

Collective Behavior in ⁷⁸Rb

NUCLEAR REACTIONS ⁵⁸Ni(²³Na, n2p), E=70 MeV; measured Eγ, Iγ, γγ-coin, Doppler-shifted spectra. ⁷⁸Rb deduced levels T_1/2, B(E2), B(M1). Recoil distance technique. Comparison with particle-rotor model calculations.

NUCLEAR STRUCTURE ⁷⁸Rb; calculated B(M1). ⁷⁸Rb, ⁷⁴Br, ⁸²Y; analyzed B(M1), B(E2). Particle-rotor model.

doi: 10.1103/PhysRevC.58.3228
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1998RU04      Phys.Rev. C58, 771 (1998)

D.Rupnik, E.F.Zganjar, J.L.Wood, P.B.Semmes, P.F.Mantica

Levels of ¹⁸⁷Au: A detailed study of shape coexistence in an odd-mass nucleus

RADIOACTIVITY ^187,187mHg(β⁺), (EC) [from ¹⁷⁶Hf(¹⁶O, 5n)]; measured Eγ, Iγ, E(ce), I(ce), γγ-, (ce)γ-coin. ¹⁸⁷Au deduced levels, J, π, ICC, diabatic configurations, E0 transitions. Particle plus triaxial rotor model comparison. Mass-separated source.

doi: 10.1103/PhysRevC.58.771
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1997AB27      Phys.Rev. C56, 1762 (1997); Erratum Phys.Rev. C58, 3011 (1998)

S.Aberg, P.B.Semmes, W.Nazarewicz

Spherical Proton Emitters

NUCLEAR STRUCTURE ¹⁰⁵Sb, ¹⁰⁹I, ^112,113Cs, ^146,147Tm, ^150,151Lu, ^156,157Ta, ^160,161Re, ^165,166,167Ir, ¹⁷¹Au, ¹⁸⁵Bi; calculated proton emission T_1/2, spectroscopic factors; deduced sensitivity to model parameters. ⁷B; calculated proton emission T_1/2 vs Q(p), diffuseness. Several models considered, comparison with experiment.

doi: 10.1103/PhysRevC.56.1762
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1997BA45      Phys.Lett. 406B, 193 (1997); Erratum Phys.Lett. 416B, 453 (1998)

R.A.Bark, J.M.Espino, W.Reviol, P.B.Semmes, H.Carlsson, I.G.Bearden, G.B.Hagemann, H.J.Jensen, I.Ragnarsson, L.L.Riedinger, H.Ryde, P.O.Tjom

Signature Inversion in Semi-Decoupled Bands: Residual interaction between h_9/2 protons and i_13/2 neutrons

NUCLEAR REACTIONS ¹⁶⁰Gd(¹⁹F, 5n), E=105 MeV; ¹⁵⁰Nd(¹⁹F, 5n), E=85 MeV; ¹³⁰Te(³⁷Cl, 5n), E=166 MeV; measured Eγ, Iγ, γγ-coin; ^162,164Tm, ¹⁷⁴Ta deduced high-spin levels, J, π, signature inversion related features. Particle-rotor model analysis.

doi: 10.1016/S0370-2693(97)00676-X
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1997VA17      Phys.Lett. 410B, 103 (1997); Erratum Phys.Lett. 421B, 412 (1998)

P.G.Varmette, D.T.Shi, W.C.Ma, A.V.Ramayya, R.V.F.Janssens, C.N.Davids, J.H.Hamilton, I.Ahmad, H.Amro, B.R.S.Babu, B.Back, K.S.Bindra, D.J.Blumenthal, L.T.Brown, M.P.Carpenter, W.L.Croft, B.Crowell, S.M.Fischer, U.Garg, R.G.Henry, T.Ishii, T.L.Khoo, J.Kormicki, T.Lauritsen, C.J.Lister, D.Nisius, H.Penttila, R.B.Piercey, J.A.Winger, S.J.Zhu, P.B.Semmes

Identification of ¹⁸¹Hg and Shape Coexistence in Odd-A Hg Isotopes

NUCLEAR REACTIONS ¹⁴⁴Sm(⁴⁰Ar, 3n), E=175, 180 MeV; measured Eγ, Iγ, γγ-coin, (recoil)γ-coin, DCO ratios. ¹⁸¹Hg deduced levels, J, π, band structure, configurations, possible isomeric state. Comparisons with neighboring nuclei.

doi: 10.1016/S0370-2693(97)01035-6
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1996JI04      Phys.Rev. C53, 2106 (1996)

H.-Q.Jin, L.L.Riedinger, C.R.Bingham, M.P.Carpenter, V.P.Janzen, C.-H.Yu, L.Zhou, P.B.Semmes, J.-Y.Zhang, M.A.Riley, C.Baktash, M.L.Halbert, N.R.Johnson, I.Y.Lee, F.K.McGowan

Effects of Intruder States in ¹⁷⁹Ir

NUCLEAR REACTIONS ¹⁵⁶Gd(²⁷Al, 4n), E=134-144 MeV; measured Eγ, Iγ, DCO ratios, γγ-coin. ¹⁷⁹Ir deduced rotational bands, high-spin levels, J, π, γ multipolarity, configuration. Model comparison.

doi: 10.1103/PhysRevC.53.2106
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1996PE01      Nucl.Phys. A597, 106 (1996)

C.M.Petrache, D.Bazzacco, S.Lunardi, C.Rossi Alvarez, G.de Angelis, M.De Poli, D.Bucurescu, C.A.Ur, P.B.Semmes, R.Wyss

Rotational Bands in the Doubly Odd Nucleus ¹³⁴Pr

NUCLEAR REACTIONS ¹¹⁹Sn(¹⁹F, 4n), E=87 MeV; ¹¹⁰Pd(²⁸Si, 3np), E=130 MeV; measured Eγ, Iγ, DCO ratios, γγ-coin, γ-multiplicity. ¹³⁴Pr deduced levels, J, π, γ-branching, B(λ) ratios, experimental routhians, aligned angular momenta. Enriched targets, hyperpure Ge detectors, BGO suppression shields, 4π-BGO ball. Total routhian surface calculations, comparison with cranked shell model, semiclassical model and two-particle plus triaxial-rotor calculations.

doi: 10.1016/0375-9474(95)00416-5
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1996WO04      Nucl.Phys. A600, 283 (1996)

J.L.Wood, M.O.Kortelahti, E.F.Zganjar, P.B.Semmes

Decay of Mass-Separated ^189mHg(8.7 min) and ^189gHg(7.7 min) to ¹⁸⁹Au

RADIOACTIVITY ^189mHg(EC), (β⁺) [from ¹⁸⁰Hf(¹⁶O, 7n), E=135 MeV]; ^189gHg(EC), (β⁺) [from ¹⁸¹Ta(¹⁶O, 8n)¹⁸⁹Tl, E=147 MeV]; measured Eγ, Iγ, I(ce), γγ(t), eγ(t), γ(X-ray)(t), e(X-ray)(t). ¹⁸⁹Au deduced levels, J, π, ICC, γ multipolarity. Ge(Li), hyperpure Ge, Si(Li) detectors, mass-separated sources.

doi: 10.1016/0375-9474(95)00478-5
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1995BR21      Nucl.Phys. A592, 194 (1995)

J.B.Breitenbach, J.L.Wood, M.Jarrio, R.A.Braga, J.Kormicki, P.B.Semmes

The Decay of ¹³³Pm and the Structure of ¹³³Nd

RADIOACTIVITY ¹³³Pm(β⁺), (EC) [from ⁹²Mo(⁴⁶Ti, 2n3p), E=246 MeV]; measured T_1/2, Eγ, Iγ, I(ce), γγ(t), e(γ)(t), γ(X-ray)(t), ce(X-ray)(t). ¹³³Nd deduced levels, J, π, ICC, γ-multipolarity, T_1/2. Hyperpure Ge, Si(Li) detectors, mass-separated sources.

doi: 10.1016/0375-9474(95)00188-7
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1995BR24      Nucl.Phys. A595, 481 (1995)

J.B.Breitenbach, J.L.Wood, M.Jarrio, R.A.Braga, H.K.Carter, J.Kormicki, P.B.Semmes

The Decays of Mass-Separated ^133m,133gNd to ¹³³Pr

RADIOACTIVITY ¹³³Nd(β⁺), (EC) [from ⁹²Mo(⁴⁶Ti, n4p), E=246 MeV]; measured Eγ, Iγ, I(ce), γγ(t), eγ(t), γ(X-ray)(t), e(X-ray)(t). ^133mNd(β⁺), (EC) [from ⁹²Mo(⁴⁶Ti, 2n3p)¹³³Pm(β⁺), E=246 MeV]; measured T_1/2, Eγ, Iγ, I(ce), γγ(t), eγ(t), γ(X-ray)(t), e(X-ray)(t); deduced β⁺/EC, log ft, Q(EC). ¹³³Pr deduced levels, J, π, ICC, γ-multipolarity. Hyperpure Ge, Si(Li) detectors, mass-separated sources.

doi: 10.1016/0375-9474(95)00366-5
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1995RU07      Phys.Rev. C51, R2867 (1995)

D.Rupnik, E.F.Zganjar, J.L.Wood, P.B.Semmes, W.Nazarewicz

Coexistence Effects in ¹⁸⁷Au: Evidence for nearly identical diabatic intruder structures

RADIOACTIVITY ^187mHg(EC), (β⁺) [from ¹⁷⁶Hf(¹⁶O, 5n), E=125 MeV]; ¹⁸⁷Hg (EC), (β⁺), (α) [from ¹⁸⁷Tl(β⁺-decay) following production by ¹⁷⁶Hf(¹⁹F, 8n), E=170 MeV]; measured Eγ, Iγ, I(ce), γγ-, γ(ce)-coin. ¹⁸⁷Au deduced levels, J, π, ICC, band structure. Particle+triaxial rotor model.

doi: 10.1103/PhysRevC.51.R2867
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1995SE05      Phys.Lett. 345B, 185 (1995)

P.B.Semmes, I.Ragnarsson, S.Aberg

Magnetic Dipole Transitions in Superdeformed Nuclei

NUCLEAR STRUCTURE ¹⁹⁴Hg, ¹⁹⁴Tl; calculated superdeformed, rotational bands B(λ). Particle plus rotor model.

doi: 10.1016/0370-2693(94)01656-W
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1995SH04      Phys.Rev. C51, 1720 (1995)

D.T.Shi, W.C.Ma, A.V.Ramayya, J.H.Hamilton, B.R.S.Babu, J.Kormicki, L.Chaturvedi, Q.H.Lu, L.T.Brown, S.L.Tabor, M.A.Riley, J.Doring, D.E.Archer, T.Brown, S.K.Jewell, R.A.Kaye, O.J.Tekyi-Mensah, P.B.Semmes

Ground-State Bands and Excitation Modes in ¹⁸³Hg

NUCLEAR REACTIONS ¹⁵⁵Gd(³²S, 4n), E=160 MeV; measured γγ-, γ(X-ray)-coin. ¹⁸³Hg deduced high-spin levels, J, π, B(λ) ratios, γ-multipolarity, band structure, aligned angular momenta. Low energy photon spectrometer, BGO multiplicity filter.

doi: 10.1103/PhysRevC.51.1720
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1993GA07      Phys.Rev. C47, 2407 (1993)

U.Garg, W.Reviol, P.Semmes

Electromagnetic Properties of ¹⁸¹Ir: Evidence of β Stretching ( Question )

NUCLEAR STRUCTURE ¹⁸¹Ir; calculated levels, B(λ) ratios. Particle-rotor model.

doi: 10.1103/PhysRevC.47.2407
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1993GE06      Nucl.Phys. A557, 439c (1993)

A.Gelberg, D.Lieberz, P.von Brentano, I.Ragnarsson, P.B.Semmes, I.Wiedenhover

Triaxial Deformation of Odd-A Xe and Ba Nuclides

NUCLEAR STRUCTURE ^{123,125,127,129,131,133}Xe, ^127,129,131Ba; calculated levels, B(λ); deduced model parameter (γ), yrast states signature splitting. Triaxial rotor plus particle model.

doi: 10.1016/0375-9474(93)90560-K
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1993JO06      Nucl.Phys. A557, 347c (1993)

N.R.Johnson, J.C.Wells, F.K.McGowan, D.F.Winchell, I.Y.Lee, P.Semmes, C.Baktash, J.D.Garrett, Y.A.Akovali, R.Bengtsson, R.Wyss, W.C.Ma, W.B.Gao, C.H.Yu, S.Pilotte

Test of Predicted Deformation-Driving Effects in ¹⁷³Re

NUCLEAR REACTIONS ¹⁵⁰Sm(²⁷Al, 4n), E=125 MeV; measured γγ-coin. ¹⁷³Re levels deduced T_1/2, B(λ), ratios, quadrupole moment, transition energy.

doi: 10.1016/0375-9474(93)90553-A
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1993WO04      Phys.Rev. C47, 2546 (1993)

P.C.Womble, J.Doring, T.Glasmacher, J.W.Holcomb, G.D.Johns, T.D.Johnson, T.J.Petters, M.A.Riley, V.A.Wood, S.L.Tabor, P.Semmes

Nuclear Structure of Odd-Odd ⁸²Y

NUCLEAR REACTIONS ⁵⁸Ni(²⁸Si, n3p), ⁵⁶Fe(²⁹Si, 2np), E=95-135 MeV; measured γ(particle)-, γγ-coin, DSA. ⁸²Y deduced levels, J, π, B(λ), T_1/2, quadrupole moments. Hartree-Fock-Bogolyubov calculations, particle-rotor calculations.

doi: 10.1103/PhysRevC.47.2546
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1992CE05      Nucl.Phys. A542, 454 (1992)

B.Cederwall, F.Liden, A.Johnson, L.Hildingsson, R.Wyss, B.Fant, S.Juutinen, P.Ahonen, S.Mitarai, J.Mukai, J.Nyberg, I.Ragnarsson, P.B.Semmes

Signature Inversion in ¹²⁰Cs: Evidence for a residual pn interaction

NUCLEAR REACTIONS ⁹²Mo(³²S, n3p), E=145 MeV; measured Eγ, Iγ, σ(Eγ, θ), (particle)γγ-coin. ¹²⁰Cs deduced levels, J, π, routhians, aligned angular momenta. Enriched targets, array of Compton suppressed hyperpure Ge detectors, array of neutron detectors, 4π array of Si charged particle detectors. Total routhian surface, two-particle plus triaxial rotor calculations.

doi: 10.1016/0375-9474(92)90106-T
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1992LI08      Phys.Lett. 282B, 7 (1992)

D.Lieberz, A.Gelberg, P.von Brentano, I.Ragnarsson, P.B.Semmes

Signatures of γ Deformation in Nuclei and an Application to ¹²⁵Xe

NUCLEAR STRUCTURE ¹²⁵Xe; calculated levels, g-factor, quadrupole moment, B(E2), T_1/2. Rigid triaxial rotor plus particle model.

doi: 10.1016/0370-2693(92)90470-O
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1992RI11      Hyperfine Interactions 75, 59 (1992)

J.Rikovska, R.Wyss, P.B.Semmes

Electromagnetic Properties and Shapes of Ground States in Pt-Au-Hg Region

NUCLEAR STRUCTURE ^{193,191,189,187,183}Pt, ^{195,193,191,189,187,185,183}Au, ^{195,193,191,189,187,185,183}Hg; calculated μ, quadrupole moments, deformation parameters vs mass. Particle-triaxial rotor model.

doi: 10.1007/BF02398964
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1992SE01      Phys.Rev.Lett. 68, 460 (1992)

P.B.Semmes, I.Ragnarsson, S.Aberg

' Invisible ' Decay of Superdeformed States

NUCLEAR STRUCTURE ^193,194Hg; calculated transition Iγ in superdeformed bands. ¹⁹³Hg deduced internal conversion dominated M1 cross talk evidence.

doi: 10.1103/PhysRevLett.68.460
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1992SE09      Hyperfine Interactions 75, 85 (1992)

P.B.Semmes

Nuclear Spins and Moments: Fundamental structural information

NUCLEAR STRUCTURE ¹³³Pm, ^135,133Sm; calculated μ. Particle-rotor model.

doi: 10.1007/BF02398966
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1991LI15      Nucl.Phys. A529, 1 (1991)

D.Lieberz, A.Gelberg, A.Granderath, P.von Brentano, I.Ragnarsson, P.B.Semmes

Triaxial Rotor Plus Particle Description of Negative-Parity States in ¹²⁵Xe

NUCLEAR STRUCTURE ¹²⁵Xe; calculated levels, B(λ). Triaxial rotor plus particle model.

doi: 10.1016/0375-9474(91)90781-Z
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1988JA10      Phys.Rev.Lett. 61, 2073 (1988)

V.P.Janzen, M.P.Carpenter, L.L.Riedinger, W.Schmitz, S.Pilotte, S.Monaro, D.D.Rajnauth, J.K.Johansson, D.G.Popescu, J.C.Waddington, Y.S.Chen, F.Donau, P.B.Semmes

Evidence for a Low-Frequency πh_9/2 Band Crossing in ¹⁸⁵Pt and ¹⁸³Ir

NUCLEAR REACTIONS ¹⁷³Yb(¹⁶O, 4n), E=90 MeV; ¹⁶⁸Er(¹⁹F, 4n), E=85 MeV; measured γγ-coin. ¹⁸⁵Pt, ¹⁸³Ir deduced levels, J, π, γ-branching, B(λ) ratio, band crossing. Cranked shell model.

NUCLEAR STRUCTURE ¹⁸⁵Pt, ¹⁸³Ir; calculated levels, B(λ). Cranked shell model.

doi: 10.1103/PhysRevLett.61.2073
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1988RA41      Hyperfine Interactions 43, 425 (1988)

I.Ragnarsson, P.B.Semmes

Description of Nuclear Moments and Nuclear Spectra in the Particle-Rotor Model

NUCLEAR STRUCTURE ^{156,158,160,162}Ho; calculated levels, μ, electric quadrupole moment. ¹⁸⁶Hg; calculated total energy. ¹⁸⁵Hg; calculated potential energy surfaces. ¹⁸⁵Au; calculated levels, B(λ), δ. Particle-rotor model.

1987KE05      Phys.Rev. C36, 1514 (1987)

B.D.Kern, R.L.Mlekodaj, G.A.Leander, M.O.Kortelahti, E.F.Zganjar, R.A.Braga, R.W.Fink, C.P.Perez, W.Nazarewicz, P.B.Semmes

Transition through Triaxial Shapes of the Light Samarium Isotopes and the Beta Decay of ^136,138,140Eu

NUCLEAR REACTIONS ⁹²Mo(⁴⁸Ti, xnp), E=220 MeV; ¹¹²Sn(²⁸Si, xnp), E=170, 190 MeV; measured Eγ, Iγ, γγ-coin. Enriched targets, Ge detectors, magnetic isotope separator.

RADIOACTIVITY ^136,138,140Eu(β⁺), (EC) [from ⁹²Mo(⁴⁸Ti, pxn), E=220 MeV; ¹¹²Sn(²⁸Si, xnp), E=170, 190 MeV]; measured Eγ, Iγ, γγ-coin. ^136,138,140Sm deduced levels. Enriched targets, Ge detectors, magnetic isotope separator.

NUCLEAR STRUCTURE ^136,138,140Sm; calculated levels. Wood-Saxon Strutinsky, triaxial models, interacting boson approximation.

doi: 10.1103/PhysRevC.36.1514
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1987SE02      Phys.Rev. C35, 749 (1987)

P.B.Semmes, R.A.Braga, J.C.Griffin, R.W.Fink

L₂-L₃ Coster-Kronig Transition Probability for Z = 54

RADIOACTIVITY ¹³¹Cs(EC); measured (K X-ray)(L X-ray)-coin; deduced L₂-L₃ Coster-Kronig transition probability. Ge, Si-Li detectors.

doi: 10.1103/PhysRevC.35.749
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1987SE03      Phys.Rev. C35, 844 (1987)

P.B.Semmes, A.F.Barfield, B.R.Barrett, J.L.Wood

Testing Interacting Boson Model Cores through Particle-Core Coupling: Negative parity states in the odd-mass Tl and Au isotopes

NUCLEAR STRUCTURE ^{189,191,193,195}Au, ^{191,193,195,197}Tl; calculated levels. Interacting boson model.

doi: 10.1103/PhysRevC.35.844
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1987SE04      Nucl.Phys. A464, 381 (1987)

P.B.Semmes, R.A.Braga, R.W.Fink, J.L.Wood, J.D.Cole

Decay of Mass-Separated 7.4 Min ²⁰³At

RADIOACTIVITY ²⁰³At(β^-) [from Ir(¹⁶O, xn), E=125 MeV]; measured T_1/2, Eγ, Iγ, I(ce), I X-ray, γγ(t), γ(ce)(t), (ce)(X-ray)(t); deduced I(β⁺)/I(EC), Q(EC). ²⁰³Po deduced levels, J, π, ICC, γ-multipolarity. Ge(Li), hyperpure Ge, Si-Li detectors, mass separated sources.

doi: 10.1016/0375-9474(87)90306-X
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1987WE06      Phys.Rev. C36, 431 (1987)

J.C.Wells, N.R.Johnson, C.Baktash, I.Y.Lee, F.K.McGowan, M.N.Rao, L.L.Riedinger, V.Janzen, W.C.Ma, Shuxian Wen, Ze-Min Chen, P.B.Semmes, G.A.Leander, Y.S.Chen

Low-Frequency Anomaly in ¹⁷²Os Moment of Inertia

NUCLEAR STRUCTURE ¹⁷²Os; calculated dynamical moments of inertia. Cranked shell model, three-band-mixing calculations.

NUCLEAR REACTIONS ¹⁴⁴Nd(³²S, 4n), E=162 MeV; measured Eγ, Iγ, γγ-coin. ¹⁷²Os deduced levels, yrast sequence moments of inertia, J, π. Cranked shell model, three-band mixing calculations.

doi: 10.1103/PhysRevC.36.431
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1986BR28      Nucl.Phys. A459, 359 (1986)

R.A.Braga, P.B.Semmes, W.R.Western, R.W.Fink

Decay of Mass-Separated ^201mPo and ^201gPo

RADIOACTIVITY ²⁰¹Po(EC), (β⁺), (α) [from ¹⁹³Ir(¹⁴N, 6n), E=116 MeV]; ²⁰¹Bi(EC), (β⁺), (α) [from ²⁰¹Po decays]; measured T_1/2, Eγ, Iγ, I(ce), γγ(t), γ(X-ray)(t). ²⁰¹Bi deduced levels, J, π, ICC, γ-multipolarity. ²⁰¹Po deduced (EC+β⁺)/IT branching ratio. Ge(Li), Si-Li detectors, mass separated sources.

doi: 10.1016/0375-9474(86)90139-9
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1986CH40      Phys.Rev. C34, 1935 (1986)

Y.S.Chen, P.B.Semmes, G.A.Leander

Calculation of M1 Transition Rates at High Spin in Axial Nuclei

NUCLEAR STRUCTURE ¹⁶⁵Lu, ⁸¹Kr, ¹⁶⁶Hf; calculated yrast levels, g factors, B(M1). Cranking, particle-rotor models.

doi: 10.1103/PhysRevC.34.1935
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1986RA07      Phys.Rev.Lett. 57, 667 (1986)

M.N.Rao, N.R.Johnson, F.K.McGowan, I.Y.Lee, C.Baktash, M.Oshima, J.W.McConnell, J.C.Wells, A.Larabee, L.L.Riedinger, R.Bengtsson, Z.Xing, Y.S.Chen, P.B.Semmes, G.A.Leander

Loss of Collectivity at High Spin in ¹⁷²W and a Three-Band Interpretation of First Yrast Upbends

NUCLEAR REACTIONS ¹²⁴Sn(⁵²Cr, 4n), E=230 MeV; measured γγ-coin, Doppler shift recoil distance. ¹⁷²W deduced levels, J, π, T_1/2, yrast sequence, dynamical moment of inertia, configuration, transition quadrupole moments.

doi: 10.1103/PhysRevLett.57.667
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Note: The following list of authors and aliases matches the search parameter P.Semmes: , P.A.SEMMES, P.B.SEMMES, P.S.SEMMES