NSR Query Results


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NSR database version of April 24, 2024.

Search: Author = L.K.Peker

Found 153 matches.

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2001HW01      J.Phys.(London) G27, L9 (2001)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.D.Cole, I.Y.Lee, J.O.Rasmussen, R.Donangelo, and the GANDS95 Collaboration

Possible Semidecoupled Bands in 102Nb

NUCLEAR STRUCTURE 102Nb; analyzed rotational bands levels, J, π; deduced semi-decoupled configuration.

doi: 10.1088/0954-3899/27/1/102
Citations: PlumX Metrics

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


2000HW03      Phys.Rev. C62, 044303 (2000), Erratum Phys.Rev. C 103, 059901 (2021)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, E.F.Jones, P.M.Gore, S.J.Zhu, C.J.Beyer, J.Kormicki, X.Q.Zhang, L.K.Peker, B.R.S.Babu, T.N.Ginter, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, I.Y.Lee, J.D.Cole, R.Aryaeinejad, M.W.Drigert, M.A.Stoyer, S.G.Prussin, R.Donangelo, H.C.Griffin

Possible Octupole Correlation in 147Pr and πh11/2 Bands in 149, 151Pr

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin following fission. 147,149,151Pr deduced high-spin levels, J, π, configurations. 147Pr deduced possible octupole correlations. Level structures and gamma rays in 147Pr and 151Pr nuclei reassigned by authors to 144La and 150Pr, respectively, in their papers 2009Lu04 for 144La and 2015Wa28 for 150Pr. Gammasphere array.

doi: 10.1103/PhysRevC.62.044303
Citations: PlumX Metrics

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


1999BU32      J.Phys.(London) G25, 2253 (1999)

K.Butler-Moore, R.Aryaeinejad, X.Q.Zhang, B.R.S.Babu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, V.E.Oberacker, S.J.Zhu, J.Kormicki, L.K.Peker, J.D.Cole, Y.X.Dardenne, W.C.Ma, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, M.F.Mohar, J.O.Rasmussen, R.W.Lougheed, K.J.Moody, M.A.Stoyer, J.F.Wild, S.G.Prussin, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, J.Kliman, M.Morhac

High-Spin States in Neutron-Rich Even-Even Pd Isotopes

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 112,114,116Pd deduced high-spin levels, J, π, configurations. Gammasphere array. IBA calculations, level systematics in Pd isotopes discussed.

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


1999HA10      Acta Phys.Slovaca 49, 31 (1999)

J.H.Hamilton, A.V.Ramayya, J.K.Hwang, W.Greiner, S.J.Zhu, A.Sandulescu, A.Florescu, J.Kormicki, G.Ter-Akopian, Y.Oganesyan, A.V.Daniel, G.S.Popeko, J.Kliman, M.Morhac, J.D.Cole, R.Aryaeinejad, M.W.Drigert, W.E.Collins, W.C.Ma, E.F.Jones, L.K.Peker, P.M.Gore, G.Drafta, B.R.S.Babu, G.Wang, J.K.Deng

Cold Spontaneous Fission Processes of 252Cf and the Structure of Neutron Rich Ba and La Nuclei

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin; deduced cold binary, ternary fission yields. 143,144,146Ba, 145,147La deduced high-spin levels, J, π, stable octupole deformation.

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13749.


1999ZH05      Phys.Rev. C59, 1316 (1999)

S.J.Zhu, J.H.Hamilton, A.V.Ramayya, M.G.Wang, J.K.Hwang, E.F.Jones, L.K.Peker, B.R.S.Babu, G.Drafta, W.C.Ma, G.L.Long, L.Y.Zhu, M.Li, C.Y.Gan, T.N.Ginter, J.Kormicki, J.K.Deng, D.T.Shi, W.E.Collins, J.D.Cole, R.Aryaeinejad, M.W.Drigert, J.O.Rasmussen, R.Donangelo, J.Gilat, S.Asztalos, I.Y.Lee, A.O.Macchiavelli, S.Y.Chu, K.E.Gregorich, M.F.Mohar, M.A.Stoyer, R.W.Lougheed, K.J.Moody, J.F.Wild, S.G.Prussin, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian

Octupole Correlations in Neutron-Rich 145, 147La Nuclei: Coriolis-limit-coupling bands with aligned h11/2 Proton

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 145,147La deduced high-spin levels, possible J, π, B(E1)/B(E2), octupole correlations. Cranked shell model analysis. Gammasphere array.

doi: 10.1103/PhysRevC.59.1316
Citations: PlumX Metrics

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


1999ZH31      Phys.Rev. C60, 051304 (1999)

S.J.Zhu, J.H.Hamilton, A.V.Ramayya, E.F.Jones, J.K.Hwang, M.G.Wang, X.Q.Zhang, P.M.Gore, L.K.Peker, G.Drafta, B.R.S.Babu, W.C.Ma, G.L.Long, L.Y.Zhu, C.Y.Gan, L.M.Yang, M.Sakhaee, M.Li, J.K.Deng, T.N.Ginter, C.J.Beyer, J.Kormicki, J.D.Cole, R.Aryaeinejad, M.W.Drigert, J.O.Rasmussen, S.Asztalos, I.Y.Lee, A.O.Macchiavelli, S.Y.Chu, K.E.Gregorich, M.F.Mohar, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian, R.Donangelo, M.A.Stoyer, R.W.Lougheed, K.J.Moody, J.F.Wild, S.G.Prussin, J.Kliman, H.C.Griffin

Octupole Correlations in Neutron-Rich 143, 145Ba and a Type of Superdeformed Band in 145Ba

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 143,145Ba deduced high-spin levels, J, π, B(E1)/B(E2), possible stable octupole deformation. Gammasphere array.

doi: 10.1103/PhysRevC.60.051304
Citations: PlumX Metrics

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


1998HW02      J.Phys.(London) G24, L9 (1998)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, C.J.Beyer, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.Gilat, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo

Close Doublet Structures in 103Mo, 109,111Ru, and Neighbours: Rotation-alignment for the half-filled h11/2 subshell ( Question )

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 103,105Mo, 109,111Ru deduced levels, band structure, possible J, π, configurations, evidence for rotation alignment. Comparison with other nuclei.

doi: 10.1088/0954-3899/24/5/009
Citations: PlumX Metrics

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


1998HW04      Phys.Rev. C57, 2250 (1998); Erratum Phys.Rev. C58, 3013 (1998)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, C.J.Beyer, J.O.Rasmussen, J.Gilat, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo, S.J.Zhu

Identification of the γ Transitions in Tc and Cs Products of 252Cf Fission and Possible (7/2)+ [413] Bands in 105-109Tc Isotopes

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 105Tc deduced high-spin levels, J, π, rotational bands. 106,107,108,109Tc deduced levels, possible J, π. 139,140,141,142,143Cs deduced levels.

doi: 10.1103/PhysRevC.57.2250
Citations: PlumX Metrics

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


1998HW08      Phys.Rev. C58, 3252 (1998)

J.K.Hwang, A.V.Ramayya, J.Gilat, J.H.Hamilton, L.K.Peker, J.O.Rasmussen, J.Kormicki, T.N.Ginter, B.R.S.Babu, C.J.Beyer, E.F.Jones, R.Donangelo, S.J.Zhu, H.C.Griffin, G.M.Ter-Akopyan, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.D.Cole, R.Aryaeinejad, M.W.Drigert, M.A.Stoyer

Rotational Bands in 101-103Nb and 98, 100Y Nuclei and Identification of Yrast Bands in 146La and 149Pr

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 101,102,103Nb, 98,100Y, 146La, 149Pr deduced levels J, π, configurations, rotational bands properties. Pairing-free bands, collective model. Gammasphere.

doi: 10.1103/PhysRevC.58.3252
Citations: PlumX Metrics

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


1998RA09      Phys.Rev. C57, 2370 (1998)

A.V.Ramayya, J.H.Hamilton, J.K.Hwang, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, A.Sandulescu, A.Florescu, F.Carstoiu, W.Greiner, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, S.J.Zhu, H.C.Griffin, R.Donangelo

Cold (Neutronless) α Ternary Fission of 252Cf

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin; deduced α-associated ternary fission isotopic yields.

doi: 10.1103/PhysRevC.57.2370
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13698.


1998ZH12      Phys.Rev. C57, 2040 (1998); Erratum Phys.Rev. C58, 3012 (1998)

X.Q.Zhang, J.H.Hamilton, A.V.Ramayya, L.K.Peker, J.K.Hwang, E.F.Jones, J.Kormicki, C.J.Beyer, P.M.Gore, B.R.S.Babu, T.N.Ginter, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod, J.O.Rasmussen, J.Gilat, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, Y.X.Dardenne, M.W.Drigert, M.A.Stoyer, J.F.Wild, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, R.Donangelo, S.G.Prussin, H.C.Griffin, S.J.Zhu

Identification of New Negative-Parity Levels in 152,154Nd

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 152,154Nd deduced high-spin levels, J, π, negative-parity bands.

doi: 10.1103/PhysRevC.57.2040
Citations: PlumX Metrics

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


1997HW02      Int.J.Mod.Phys. E6, 331 (1997)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, J.Kormicki, L.K.Peker, B.R.S.Babu, T.N.Ginter, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod, J.O.Rasmussen, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, Y.X.Dardenne, M.W.Drigert, M.A.Stoyer, J.F.Wild, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, R.Donangelo, S.G.Prussin, H.C.Griffin

Identification of the ν3/2-[521] Band in 153Nd and the γ-Transitions in 149Nd

RADIOACTIVITY 252Cf(SF); measured γγ-coin; deduced E2 transition energies in N=93 isotones, N=89 isotones Eγ. 149Nd deduced high-spin level associated transitions. 153Nd deduced high-spin levels, band structure, signature splitting related features, moment of inertia. Other data input.

doi: 10.1142/S0218301397000226
Citations: PlumX Metrics


1997HW03      Phys.Rev. C56, 1344 (1997)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.Gilat, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, Y.X.Dardenne, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo

Identification of 109Mo and Possible Octupole Correlations in 107,109Mo

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 107,109Mo deduced high-spin levels, J, π, B(E1)/B(E2), configurations, octupole deformation.

doi: 10.1103/PhysRevC.56.1344
Citations: PlumX Metrics


1997PE22      Nucl.Data Sheets 82, 187 (1997)

L.K.Peker, J.K.Tuli

Nuclear Data Sheets for A = 146

COMPILATION 146Xe, 146Cs, 146Ba, 146La, 146Ce, 146Pr, 146Nd, 146Pm, 146Sm, 146Eu, 146Gd, 146Tb, 146Dy, 146Ho, 146Er, 146Tm; compiled, evaluated structure data.

doi: 10.1006/ndsh.1997.0020
Citations: PlumX Metrics


1997RA39      Nuovo Cim. 110A, 1073 (1997)

A.V.Ramayya, J.H.Hamilton, J.K.Hwang, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, A.Sandulescu, A.Florescu, F.Carstoiu, W.Greiner, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.MacLeod, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, S.J.Zhu, H.C.Griffin, R.Donangelo

Cold Binary and Ternary Fragmentations in Spontaneous Fission of 252Cf

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin; deduced fragment isotopic yields, binary, α-associated ternary events features.

doi: 10.1007/BF03035948
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13698.


1996BA34      Phys.Rev. C54, 568 (1996)

B.R.S.Babu, S.J.Zhu, A.V.Ramayya, J.H.Hamilton, L.K.Peker, M.G.Wang, T.N.Ginter, J.Kormicki, W.C.Ma, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, Y.X.Dardenne, M.W.Drigert, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.O.Rasmussen, S.Asztalos, I.Y.Lee, A.O.Macchiavelli, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.Prussin, M.A.Stoyer, R.W.Lougheed, K.J.Moody, J.F.Wild

Identification of γ Transitions in 147Ba, 149Ce, and 151,153Nd

RADIOACTIVITY 252Cf(SF); measured γγγ-, γ(X-ray)-, γγ(X-ray)-, γγ-coin. 147Ba, 151,153Nd, 149Ce deduced high-spin levels, J, π, configuration, band structure.

doi: 10.1103/PhysRevC.54.568
Citations: PlumX Metrics

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


1996HA27      Phys.Rep. 264, 215 (1996)

J.H.Hamilton, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.Kormicki, S.J.Zhu, M.G.Wang, Q.Lu, K.Butler-Moore, A.V.Ramayya, W.C.Ma, B.R.S.Babu, D.Shi, J.K.Deng, G.S.Popeko, A.V.Daniel, W.Greiner, A.Sandulescu, J.D.Cole, R.Aryaeinejad, J.Kliman, V.Polhorsky, M.Morhac, N.R.Johnson, I.Y.Lee, F.K.McGowan, L.K.Peker

Structure of Neutron-Rich Nuclei and Neutron Multiplicities in Spontaneous Fission

RADIOACTIVITY 252Cf(SF); compiled, reviewed γγ-, γγγ-coin data. 140,143,145,147Ba, 136Te, 138Xe deduced high-spin levels. Other nuclei included.

doi: 10.1016/0370-1573(95)00039-9
Citations: PlumX Metrics


1995LU10      Phys.Rev. C52, 1348 (1995)

Q.H.Lu, K.Butler-Moore, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, V.E.Oberacker, W.C.Ma, B.R.S.Babu, J.K.Deng, J.Kormicki, J.D.Cole, R.Aryaeinejad, Y.X.Dardenne, M.Drigert, L.K.Peker, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, I.Y.Lee, M.F.Mohar, J.M.Nitschke, N.R.Johnson, F.K.McGowan, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.B.Gupta

Structure of 108,110,112Ru: Identical bands in 108,110Ru

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-, γγγ-, (X-ray)γ-coin. 108,110,112Ru deduced levels, J, π, intraband B(E2) ratios. Rotation-vibration, rigid triaxial rotor calculation.

doi: 10.1103/PhysRevC.52.1348
Citations: PlumX Metrics

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


1995ZH34      Phys.Lett. 357B, 273 (1995)

S.J.Zhu, Q.H.Lu, J.H.Hamilton, A.V.Ramayya, L.K.Peker, M.G.Wang, W.C.Ma, B.R.S.Babu, T.N.Ginter, J.Kormicki, D.Shi, J.K.Deng, W.Nazarewicz, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.Asztalos, S.G.Prussin, J.D.Cole, R.Aryaeinejad, Y.K.Dardenne, M.Drigert, K.J.Moody, R.W.Lougheed, J.F.Wild, N.R.Johnson, I.Y.Lee, F.K.McGowan, G.M.Ter-Akopian, Yu.Ts.Oganessian

Octupole Deformation in 142,143Ba and 144Ce: New band structures in neutron-rich Ba-isotopes

RADIOACTIVITY 252Cf(SF); 242Pu(SF); measured γγ-, γγγ-coin following fission fragment decay. 142,143,144,145,146,147Ba, 144Ce deduced high-spin levels, J, π, band structure, shape features, B(λ) in some cases.

doi: 10.1016/0370-2693(95)00900-6
Citations: PlumX Metrics

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


1994PE15      Nucl.Data Sheets 73, 1 (1994)

L.K.Peker

Nuclear Data Sheets Update for A = 99

COMPILATION 99Rb, 99Sr, 99Y, 99Zr, 99Nb, 90Mo, 99Tc, 99Ru, 99Rh, 99Pd, 99Ag, 99Cd; compiled, evaluated structure data.

doi: 10.1006/ndsh.1994.1039
Citations: PlumX Metrics


1994PE19      Nucl.Data Sheets 73, 261 (1994)

L.K.Peker

Nuclear Data Sheets Update for A = 140

COMPILATION 140I, 140Xe, 140Cs, 140Ba, 140La, 140Ce, 140Pr, 140Nd, 140Pm, 140Sm, 140Eu, 140Gd, 140Tb; compiled, evaluated structure data.

doi: 10.1006/ndsh.1994.1044
Citations: PlumX Metrics


1993PE01      Nucl.Data Sheets 68, 165 (1993); 1993Pe02

L.K.Peker

Nuclear Data Sheets Update for A = 96

doi: 10.1006/ndsh.1993.1006
Citations: PlumX Metrics


1993PE02      Nucl.Data Sheets 68, 165 (1993)

L.K.Peker

Nuclear Data Sheets Update for A = 96

COMPILATION 96Rb, 96Sr, 96Y, 96Zr, 96Nb, 96Mo, 96Tc, 96Ru, 96Rh, 96Pd, 96Ag; compiled, evaluated structure data.

doi: 10.1006/ndsh.1993.1006
Citations: PlumX Metrics


1993PE06      Nucl.Data Sheets 68, 271 (1993)

L.K.Peker

Nuclear Data Sheets Update for A = 46

COMPILATION 46Ar, 46K, 46Ca, 46Sc, 46Ti, 46V, 46Cr, 46Mn; compiled, evaluated structure data.

doi: 10.1006/ndsh.1993.1009
Citations: PlumX Metrics


1993PE07      Nucl.Data Sheets 68, 997 (1993)

L.K.Peker

Nuclear Data Sheets Update for A = 145

COMPILATION 145Cs, 145Ba, 145La, 145Ce, 145Pr, 145Nd, 145Pm, 145Eu, 145Gd, 145Tb, 145Dy, 145Ho, 145Er; compiled, evaluated structure data.

doi: 10.1006/ndsh.1993.1021
Citations: PlumX Metrics


1992DE38      Nucl.Data Sheets 66, 705 (1992)

E.der Mateosian, L.K.Peker

Nuclear Data Sheets for A = 147

COMPILATION 147Cs, 147Ba, 147La, 147Ce, 147Pr, 147Nd, 147Pm, 147Sm, 147Eu, 147Gd, 147Tb, 147Dy, 147Ho, 147Er, 147Tm; compiled, evaluated structure data.

doi: 10.1016/0090-3752(92)80081-T
Citations: PlumX Metrics


1992PE04      Nucl.Data Sheets 65, 439 (1992)

L.K.Peker

Nuclear Data Sheets Update for A = 165

COMPILATION 165Tb, 165Dy, 165Ho, 165Er, 165Tm, 165Yb, 165Lu, 165Hf, 165Ta, 165W, 165Re, 165Os; compiled, evaluated structure data.

doi: 10.1016/0090-3752(92)80045-L
Citations: PlumX Metrics


1992ZH42      Rev.Mex.Fis. 38, 53 (1992)

S.Zhu, X.Zhao, J.H.Hamilton, A.V.Ramayya, Q.Lu, W.-C.Ma, L.K.Peker, J.Kormicki, H.Xie, W.B.Gao, J.K.Deng, I.Y.Lee, N.R.Johnson, F.K.McGowan, C.E.Bemis, J.D.Cole, R.Aryaeinejad, G.M.Ter-Akopian, Yu.Ts.Oganessian

Higher Spin States in Neutron Rich Nuclei


1991PE05      Nucl.Data Sheets 63, 573 (1991)

L.K.Peker

Nuclear Data Sheets Update for A = 141

COMPILATION 141I, 141Xe, 141Cs, 141Ba, 141La, 141Ce, 141Pr, 141Nd, 141Pm, 141Sm, 141Eu, 141Gd, 141Tb, 141Dy; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80010-9
Citations: PlumX Metrics


1991PE06      Nucl.Data Sheets 63, 647 (1991)

L.K.Peker

Nuclear Data Sheets Update for A = 142

COMPILATION 142Xe, 142Cs, 142Ba, 142La, 142Ce, 142Pr, 142Nd, 142Pm, 142Sm, 142Eu, 142Gd, 142Tb, 142Dy; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80011-0
Citations: PlumX Metrics


1991PE11      Nucl.Data Sheets 64, 429 (1991)

L.K.Peker

Nuclear Data Sheets Update for A = 143

COMPILATION 143Xe, 143Cs, 143Ba, 143La, 143Ce, 143Pr, 143Nd, 143Pm, 143Sm, 143Eu, 143Gd, 143Tb; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80017-1
Citations: PlumX Metrics


1990PE01      Nucl.Data Sheets 59, 393 (1990)

L.K.Peker

Nuclear Data Sheets for A = 148

COMPILATION 148Cs, 148Ba, 148La, 148Ce, 148Pr, 148Nd, 148Pm, 148Sm, 148Eu, 148Gd, 148Tb, 148Dy, 148Ho, 148Er, 148Tm; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80095-X
Citations: PlumX Metrics


1990PE02      Nucl.Data Sheets 59, 767 (1990)

L.K.Peker

Nuclear Data Sheets for A = 137

COMPILATION 137Te, 137I, 137Xe, 137Cs, 137Ba, 137La, 137Ce, 137Pr, 137Nd, 137Pm, 137Sm, 137Eu, 137Gd; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80123-1
Citations: PlumX Metrics


1990PE06      Nucl.Data Sheets 60, 953 (1990)

L.K.Peker

Nuclear Data Sheets Update for A = 146

COMPILATION 146Xe, 146Cs, 146Ba, 146La, 146Ce, 146Pr, 146Nd, 146Pm, 146Sm, 146Eu, 146Gd, 146Tb, 146Dy, 146Ho; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80111-5
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1990PE09      Nucl.Data Sheets 61, 189 (1990)

L.K.Peker

Nuclear Data Sheets Update for A = 58

COMPILATION 58Cr, 58Mn, 58Fe, 58Co, 58Ni, 58Cu, 58Zn; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(05)80116-4
Citations: PlumX Metrics


1989PE11      Nucl.Data Sheets 58, 93 (1989)

L.K.Peker

Nuclear Data Sheets for A = 152

COMPILATION 152Pr, 152Nd, 152Pm, 152Sm, 152Eu, 152Gd, 152Tb, 152Dy, 152Ho, 152Er, 152Tm, 152Yb, 152Lu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(89)80018-3
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1988PE03      Nucl.Data Sheets 53, 177 (1988)

L.K.Peker

Nuclear Data Sheets Update for A = 138

COMPILATION 138Te, 138I, 138Xe, 138Cs, 138Ba, 138La, 138Ce, 138Pr, 138Nd, 138Pm, 138Sm, 138Eu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(88)80090-5
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1987HA23      Fizika(Zagreb) 19, Supplement 1, 31 (1987)

J.H.Hamilton, L.K.Peker

Possible Collapse of Pairing at Low Spins in the A = 100 Region

NUCLEAR STRUCTURE 98,99Y; analyzed band structure; deduced possible pairing collapse.


1987PE01      Nucl.Data Sheets 50, 137 (1987)

L.K.Peker

Nuclear Data Sheets for A = 165

COMPILATION 165Tb, 165Dy, 165Ho, 165Er, 165Tm, 165Yb, 165Lu, 165Hf, 165Ta, 165W, 165Re, 165Os; compiled, evaluated nuclear structure data.

doi: 10.1016/S0090-3752(87)80094-7
Citations: PlumX Metrics


1987PE07      Nucl.Data Sheets 51, 425 (1987)

L.K.Peker

Nuclear Data Sheets for A = 140

COMPILATION 140I, 140Xe, 140Cs, 140Ba, 140La, 140Ce, 140Pr, 140Nd, 140Pm, 140Sm, 140Eu, 140Gd; compiled, evaluated structure data.


1986BE31      J.Phys.(London) G12, L223 (1986)

R.Bengtsson, J.-Y.Zhang, J.H.Hamilton, L.K.Peker

Potential Energy Surface Calculations of Nuclear Shape Transitions and Shape Coexistence in 176,178,180Pt

NUCLEAR STRUCTURE 176,178,180Pt; calculated potential energy surfaces, yrast state transition energy vs spin.

doi: 10.1088/0305-4616/12/3/010
Citations: PlumX Metrics


1986MI10      Phys.Rev. C33, 2159 (1986)

S.Mirzadeh, Y.Y.Chu, S.Katcoff, L.K.Peker

Decay of 7.3-min 235Th and 24.6-min 235Pa

RADIOACTIVITY 235Th(β-); 235Pa(β-) [from 235Th(β-decay)]; measured Eγ, Iγ, T1/2. 235Th deduced Iβ, log ft. 235Pa deduced levels, J, π, γ-branching, anomalous β-branching retardation.

doi: 10.1103/PhysRevC.33.2159
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1986PE02      Phys.Lett. 167B, 283 (1986)

L.K.Peker, J.H.Hamilton, P.G.Hansen

On the Possible Total Collapse of the Pairing in the Isomeric I(π) = (7/2)+ States of Odd-A 45Rh and 47Ag Nuclei

NUCLEAR STRUCTURE 103Rh, 103,109Ag; calculated level, EC-decay log ft, g. 105Rh; calculated level, g. 105,107Ag; calculated level, EC-decay log ft.

doi: 10.1016/0370-2693(86)90346-1
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1986PE04      Phys.Lett. 169B, 323 (1986)

L.K.Peker, F.K.Wohn, J.C.Hill, R.F.Petry

Observations of ' Pairing-Free ' K(π)=1+ Rotational Bands in Deformed Odd-Odd A ≈ 100 Nuclei

RADIOACTIVITY 100,102Sr, 102,104Zr(β-); analyzed β-decay data. 100,102Y, 102,104Nb deduced rotational bands, K, π, moment of inertia, deformation.

doi: 10.1016/0370-2693(86)90365-5
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1986PE07      Nucl.Data Sheets 48, 753 (1986)

L.K.Peker

Nuclear Data Sheets for A = 143

COMPILATION 143Xe, 143Cs, 143Ba, 143La, 143Ce, 143Pr, 143Nd, 143Pm, 143Sm, 143Eu, 143Gd, 143Tb; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(86)80107-7
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1986PE09      Nucl.Data Sheets 49, 1 (1986)

L.K.Peker

Nuclear Data Sheets for A = 145

COMPILATION 145Cs, 145Ba, 145La, 145Ce, 145Pr, 145Nd, 145Pm, 145Sm, 145Eu, 145Gd, 145Tb, 145Dy; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(86)80033-3
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1985PE08      Nucl.Data Sheets 45, 1 (1985)

L.K.Peker

Nuclear Data Sheets for A = 141

COMPILATION 141I, 141Xe, 141Cs, 141Ba, 141La, 141Ce, 141Pr, 141Nd, 141Pm, 141Sm, 141Eu, 141Gd, 141Dy; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(85)80022-3
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1984FI07      Nucl.Phys. A422, 215 (1984)

C.A.Fields, K.H.Hicks, R.A.Ristinen, F.W.N.De Boer, L.K.Peker, R.J.Peterson, P.M.Walker

Rotational Side-Bands in 164Er

NUCLEAR REACTIONS 162Dy(α, 2n), E=24 MeV; measured Eγ, Iγ(θ), γγ-coin. 165Ho(p, 2n), E=23 MeV; measured Eγ, Iγ(θ, t), γγ-coin. 164Er deduced levels, J, ICC, π, K, bandhead configurations, mixing strengths. Enriched targets, Ge(Li) and hyperpure Ge detectors, mini-orange spectrometer. Two-band mixing analysis.

doi: 10.1016/0375-9474(84)90515-3
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1984MI02      Phys.Rev. C29, 985 (1984)

S.Mirzadeh, Y.Y.Chu, S.Katcoff, L.K.Peker

Decay of 37.5-min 236Th and 9.1-min 236Pa

RADIOACTIVITY 236Th, 236Pa(β-); measured Eγ, Iγ; deduced T1/2, Iβ, log ft. 236Pa, 236U deduced levels, J, π, K, γ-branching, configuration. Continuous separation technique.

doi: 10.1103/PhysRevC.29.985
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1984PE01      Phys.Rev. C29, 271 (1984)

L.K.Peker, S.Pearlstein, J.O.Rasmussen, J.H.Hamilton

Strength of Coriolis Alignment in Actinide Nuclei

NUCLEAR STRUCTURE 226Ra, 232Th, 232,234,236,235,238U, 237Np; analyzed intraband level energies; deduced Coriolis alignment strength.

doi: 10.1103/PhysRevC.29.271
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1984PE10      Nucl.Data Sheets 41, 195 (1984)

L.K.Peker

Nuclear Data Sheets for A = 146

COMPILATION 146Cs, 146Ba, 146La, 146Ce, 146Pr, 146Nd, 146Pm, 146Sm, 146Eu, 146Gd, 146Tb, 146Dy, 146Ho; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(84)80086-1
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1984PE14      Nucl.Data Sheets 42, 111 (1984)

L.K.Peker

Nuclear Data Sheets for A = 148

COMPILATION 148Cs, 148Ba, 148La, 148Ce, 148Pr, 148Nd, 148Pm, 148Sm, 148Eu, 148Gd, 148Tb; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(84)80093-9
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1984PE16      Nucl.Data Sheets 42, 457 (1984)

L.K.Peker

Nuclear Data Sheets for A = 58

COMPILATION 58Mn, 58Fe, 58Co, 58Ni, 58Cu, 58Zn; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(84)80104-0
Citations: PlumX Metrics


1984PE20      Nucl.Data Sheets 43, 481 (1984)

L.K.Peker

Nuclear Data Sheets for A = 53

COMPILATION 53K, 53Ca, 53Ti, 53V, 53Cr, 53Mn, 53Fe, 53Co, 53Ni; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(84)80067-8
Citations: PlumX Metrics


1984PE21      Nucl.Data Sheets 43, 579 (1984)

L.K.Peker

Nuclear Data Sheets for A = 142

COMPILATION 142Xe, 142Cs, 142Ba, 142La, 142Ce, 142Pr, 142Nd, 142Pm, 142Sm, 142Eu, 142Gd; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(84)80068-X
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1983PE05      Phys.Rev.Lett. 50, 1749 (1983)

L.K.Peker, S.Pearlstein, J.O.Rasmussen, J.H.Hamilton

Unexpected Properties of the Negative-Parity Bands in 236,238U, 218Ra, and 156Er

NUCLEAR STRUCTURE 236,238U, 218Ra, 156Er; analyzed negative parity bands; deduced energy shift term characteristics.

doi: 10.1103/PhysRevLett.50.1749
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1983PE12      J.Phys.(London) G9, 1025 (1983)

L.K.Peker, S.Pearlstein, J.H.Hamilton

On the Relative Quality of the Spin Expansion and Frequency Expansion for the Description of Rotational Level Energies

NUCLEAR STRUCTURE 150,152,154Nd, 156,158,160,162,164Dy, 230,232Th, 232,234,236,238U, 244,246,248Cm, 158,160,162,164,166,168,170Er, 161,168,170,172,174,176,178,180,182Hf, 238,240,242,244Pu; analyzed ground state rotational band energy expansion; deduced convergence rate dependence on structure.

doi: 10.1088/0305-4616/9/9/008
Citations: PlumX Metrics


1983PE16      Nucl.Data Sheets 38, 87 (1983)

L.K.Peker

Nuclear Data Sheets for A = 137

COMPILATION 137Te, 137I, 137Xe, 137Cs, 137Ba, 137La, 137Ce, 137Pr, 137Nd, 137Pm, 137Sm; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(83)80092-1
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1982FI06      Phys.Rev. C26, 290 (1982)

C.A.Fields, K.H.Hicks, R.A.Ristinen, F.W.N.de Boer, L.K.Peker, P.M.Walker

Interacting Negative-Parity Bands in 164Er

NUCLEAR REACTIONS 162Dy(α, 2n), E=24 MeV; measured Eγ, Iγ(θ, t), γγ-coin. 164Er deduced levels, J, π, K, configurations, band structure. Band mixing analysis.

doi: 10.1103/PhysRevC.26.290
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1982FI15      Nucl.Phys. A389, 218 (1982)

C.A.Fields, K.H.Hicks, R.A.Ristinen, F.W.N.De Boer, P.M.Walker, J.Borggreen, L.K.Peker

A Study of the Rotational Side-Bands in 162Dy

NUCLEAR REACTIONS 160Gd(α, 2n), E=24, 28 MeV; measured E(γ), I(γ)(E, t, θ), γγ-coin, ICC. 162Dy deduced levels, K, J, π. Enriched targets, Ge(Li), hyperpure Ge detectors, mini-orange spectrometer. Two-quasiparticle plus rotor analysis.

doi: 10.1016/0375-9474(82)90517-6
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1982PA23      Phys.Rev. C26, 2178 (1982)

P.P.Parekh, L.K.Peker, S.Katcoff, E.-M.Franz

Decay of 61.9-Min 240Np High-Spin Isomer

RADIOACTIVITY 240mNp(β-) [from 238U(α, np), 244Pu(n, 4np)]; measured Eγ, Iγ, T1/2; deduced log ft. 240Pu deduced levels, J, π, K, band structure. Radiochemical separation, Ge(Li), 4π-β detectors.

doi: 10.1103/PhysRevC.26.2178
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1982PE04      Phys.Lett. 110B, 99 (1982)

L.K.Peker, J.H.Hamilton, J.O.Rasmussen

Nuclear Shapes and the Configuration (i13/2, h9/2) in A ≈ 150 Nuclei

NUCLEAR STRUCTURE 148,150,152Gd, 149,151Tb, 150,152Dy; analyzed level schemes; deduced nuclear shapes.

doi: 10.1016/0370-2693(82)91013-9
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1982PE12      Nucl.Data Sheets 36, 289 (1982)

L.K.Peker

Nuclear Data Sheets for A = 138

COMPILATION 138Te, 138I, 138Xe, 138Cs, 138Ba, 138La, 138Ce, 138Pr, 138Nd, 138Pm, 138Sm, 138Eu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(82)80053-7
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1981DE03      Phys.Rev. C23, 213 (1981); Erratum Phys.Rev. C23, 2380 (1981)

A.P.de Lima, A.V.Ramayya, J.H.Hamilton, B.Van Nooijen, R.M.Ronningen, H.Kawakami, R.B.Piercey, E.de Lima, R.L.Robinson, H.J.Kim, L.K.Peker, F.A.Rickey, R.Popli, A.J.Caffrey, J.C.Wells

Multiple Band Structures in 68Ge

NUCLEAR REACTIONS 58Ni(12C, 2p), E=39 MeV; 63Cu(7Li, 2n), E=18 MeV; 52Cr(19F, 2np), E=50 MeV; measured Eγ, Iγ, γ(θ), γγ(θ), oriented nuclei, DSA, linear polarization. 68Ge deduced levels, J, π, δ, T1/2, rotational band structure. Interacting boson, rotation-aligned models.

doi: 10.1103/PhysRevC.23.213
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1981FR07      Phys.Rev. C23, 2234 (1981)

E-M.Franz, S.Katcoff, P.P.Parekh, L.K.Peker

Identification and Decay of New High-Spin Isomer: 5.5-min 242Np

RADIOACTIVITY 242Np [from 244Pu(n, 2np), 242Pu(n, p), E=thermal]; measured Eγ, Iγ, T1/2; deduced Eβ, log ft. 242Pu deduced levels, J, π, Nilsson assignment, γ-branching.

doi: 10.1103/PhysRevC.23.2234
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1981HS02      Phys.Rev. C23, 1217 (1981)

H.-C.Hseuh, E.-M.Franz, P.E.Haustein, S.Katcoff, L.K.Peker

Decay of 14.1-h 240U and 7.22-min 240mNp

RADIOACTIVITY 240U, 240mNp [from 244Pu(α-decay) → 240U(β-decay), radiochemical separation]; measured Eγ, Iγ, T1/2; deduced log ft, Iβ. 240Np, 240Pu deduced levels, J, π, Nilsson assignments.

doi: 10.1103/PhysRevC.23.1217
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1981PA20      Phys.Rev. C24, 2240 (1981); Erratum Phys.Rev. C25, 2137 (1982)

P.P.Parekh, E.-M.Franz, S.Katcoff, L.K.Peker

Decay of 13.9-min 241Np

RADIOACTIVITY 241Np [from 238U(α, p), E=32 MeV, 244Pu(n, 3np), E=30-160 MeV]; measured Eγ, Iγ, T1/2; deduced Iβ, log ft. 241Pu deduced levels, J, π, γ-branching. 4πβ, Ge(Li) detectors.

doi: 10.1103/PhysRevC.24.2240
Citations: PlumX Metrics


1981PE04      Nucl.Data Sheets 32, 1 (1981)

L.K.Peker

Nuclear Data Sheets for A = 139

COMPILATION 139I, 139Xe, 139Cs, 139Ba, 139La, 139Ce, 139Pr, 139Nd, 139Sm, 139Eu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(81)80047-6
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1981PE05      Phys.Lett. 100B, 281 (1981)

L.K.Peker, S.Pearlstein, J.H.Hamilton

On the Properties of the Extended Ground Rotational Bands in Actinide Even-Even Nuclei

NUCLEAR STRUCTURE 232Th, 232,234,236,238U, 248Cm; calculated yrast levels; 232Th, 238U, 248Cm; calculated Eγ for I → I-2. Variable moment of inertia model, two term angular velocity expansion.

doi: 10.1016/0370-2693(81)90087-3
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1981PE09      Phys.Rev. C24, 1336 (1981)

L.K.Peker, J.H.Hamilton, J.O.Rasmussen

Octupole Vibration Origin of the Low K(π) = 0-; I = 1- States in the A ≥ 218 Rn, Ra, and Th Even-Even Nuclei

NUCLEAR STRUCTURE 218,220,222Rn, 222,224,226Ra, 228,230,232,234Th; analyzed levels; deduced strong Coriolis coupling effects. 218,220,222Rn levels deduced J, π.

doi: 10.1103/PhysRevC.24.1336
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1980GI04      Phys.Rev. C21, 2041 (1980)

J.Gilat, S.Katcoff, L.K.Peker

Levels of 230Ac and 230Th Populated by Decay of 230Ra and 230Ac

RADIOACTIVITY 230Ra, 230Ac [from 232Th(n, n2p)230Ra(β-decay)]; measured Eγ, Iγ, T1/2, Eβ; deduced Qβ, Iβ, log ft. 230Ac, 230Th deduced levels, γ-branching, J, π, Nilsson assignments. Chemical separation, Ge(Li), plastic detectors.

doi: 10.1103/PhysRevC.21.2041
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1980KA08      Phys.Rev. C21, 1311 (1980)

H.Kawakami, A.P.de Lima, R.M.Ronningen, A.V.Ramayya, J.H.Hamilton, R.L.Robinson, H.J.Kim, L.K.Peker

High-Spin States in 65Ga and Possible Triaxial Structure

NUCLEAR REACTIONS 58Ni(12C, αp), E=39 MeV; 60Ni(7Li, 2n), E=18-21 MeV; measured Iγ, Eγ, Iγ(θ), γγ-coin, γγ(θ) oriented nuclei. 65Ga deduced levels, J, π, δ.

doi: 10.1103/PhysRevC.21.1311
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1980LU08      Nucl.Phys. A344, 283 (1980)

J.Ludziejewski, J.Bron, W.H.A.Hesselink, A.W.B.Kalshoven, L.K.Peker, A. Van Poelgeest, H.Verheul, M.J.A. De Voigt

Level Structure in Doubly Odd 104Ag

NUCLEAR REACTIONS 103Rh(α, 3nγ), E=33-55 MeV; measured Eγ, Iγ, γ(θ), αγ(t), γγ(t), I(ce). 104Ag deduced levels, J, π, T1/2, B(λ). Ge(Li) detector, mini-orange spectrometer. Coriolis coupling, Nilsson model.

doi: 10.1016/0375-9474(80)90678-8
Citations: PlumX Metrics


1980PE03      Nucl.Data Sheets 29, 587 (1980)

L.K.Peker

Nuclear Data Sheets for A = 112

COMPILATION 112Ru, 112Rh, 112Pd, 112Ag, 112Cd, 112In, 112Sn, 112Sb, 112Te, 112I, 112Xe; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(80)80040-8
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1980PE06      Phys.Lett. 91B, 365 (1980)

L.K.Peker, J.O.Rasmussen, J.H.Hamilton

Particle Angular Momentum Alignment Effects in Deformed Nuclei

NUCLEAR STRUCTURE 158Dy, 160,164Er; analyzed data; deduced aligned angular momentum quantity.

doi: 10.1016/0370-2693(80)90997-1
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1979DE12      Phys.Lett. 83B, 43 (1979)

A.P.de Lima, J.H.Hamilton, A.V.Ramayya, B.van Nooijen, R.M.Ronningen, H.Kawakami, R.B.Piercey, E.de Lima, R.L.Robinson, H.J.Kim, W.K.Tuttle, L.K.Peker, F.A.Rickey, R.Popli

Evidence for Ground and Both Neutron and Proton Rotational Aligned Bands in 68Ge

NUCLEAR REACTIONS 58Ni(12C, 2pγ), E=39 MeV; measured γ(θ), γγ-coin, T1/2. 63Cu(7Li, 2nγ), E=26 MeV; measured γ(θ). 68Ge deduced levels, branching of yrast band. Rotational aligned model calculations.

doi: 10.1016/0370-2693(79)90884-0
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1979HA26      Phys.Rev. C19, 2332 (1979)

P.E.Haustein, H-C.Hseuh, R.L.Klobuchar, E-M.Franz, S.Katcoff, L.K.Peker

Identification and Decay of 242U and 242Np

RADIOACTIVITY 242U(β-) [from 244Pu(n, 2pn), E=30-160 MeV]; measured T1/2, Eγ, Iγ; deduced Eβ, Iβ, log ft. 242Np deduced levels, J, π, Nilsson assignments. 242Np(β-); measured T1/2, Eγ, Iγ, Eβ, Iβ; deduced log ft. 242Pu deduced levels, J, π, Nilsson assignments.

doi: 10.1103/PhysRevC.19.2332
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1979KA05      Nucl.Phys. A315, 334 (1979)

A.W.B.Kalshoven, W.H.A.Hesselink, T.J.Ketel, J.Ludziejewski, L.K.Peker, J.J.van Ruyven, H.Verheul

High Spin States in 105Ag

NUCLEAR REACTIONS 103Rh(α, 2nγ), E=17-32 MeV; measured Eγ, Iγ, γ(θ), linear polarization, αγ(t), γγ(t), I(ce), μ. 105Ag deduced levels, J, π, T1/2, B(λ). Ge(Li), Si(Li) detectors.

doi: 10.1016/0375-9474(79)90615-8
Citations: PlumX Metrics


1979PE02      Nucl.Data Sheets 26, 473 (1979)

L.K.Peker

Nuclear Data Sheets for A = 136

COMPILATION 136Sb, 136Te, 136I, 136Xe, 136Cs, 136Ba, 136La, 136Ce, 136Pr, 136Nd, 136Pm; compiled, evaluated structure data.

doi: 10.1016/0090-3752(79)80023-X
Citations: PlumX Metrics


1979PE07      Nucl.Data Sheets 28, 267 (1979)

L.K.Peker

Nuclear Data Sheets for A = 140

COMPILATION 140I, 140Xe, 140Cs, 140Ba, 140La, 140Ce, 140Pr, 140Nd, 140Pm, 140Sm, 140Eu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(79)80054-X
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1979PE10      Phys.Rev. C20, 855 (1979)

L.K.Peker, J.H.Hamilton

Possible Triaxial Shape of Even-A Mercury Nuclei and a Phase Transition between ≤ 196Hg and 198,200Hg

NUCLEAR STRUCTURE 192,194,196,198,200Hg; calculated energy levels, B(E2). Triaxial rotor model.

doi: 10.1103/PhysRevC.20.855
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1979PE11      J.Phys.(London) G5, L165 (1979)

L.K.Peker, J.H.Hamilton

Are the E1 Transitions from Octupole Vibrational States Collective or Particle Transitions (Question)

NUCLEAR STRUCTURE 74,76,78Se, 110,112,114,116Cd, 234,236,238U, 238,240,242Pu; analyzed data on E1 transitions from octupole states; deduced microscopic structure of levels.

doi: 10.1088/0305-4616/5/10/004
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1979PE13      Z.Phys. A292, 271 (1979)

L.K.Peker, J.O.Rasmussen, J.H.Hamilton

Bandcrossing in K ≠ 0 Bands

NUCLEAR STRUCTURE 156Er, 165Tm, 157Ho; discussed even-odd effects in crossing of K ≠ 0 bands.

doi: 10.1007/BF01547472
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1979PE15      J.Phys.(London) G5, L203 (1979)

L.K.Peker, J.H.Hamilton

Is There Evidence for Rotation Along the Axis of Symmetry in Transitional Nuclei (Question)

NUCLEAR STRUCTURE 152Dy, 154Er; calculated spin dependence of totally random level sequence. Computer generated bands for I > 14.

doi: 10.1088/0305-4616/5/2/007
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1979RA34      Nucl.Phys. A332, 82 (1979)

J.O.Rasmussen, M.W.Guidry, T.E.Ward, C.Castaneda, L.K.Peker, E.Leber, J.H.Hamilton

Rotational Energy Expressions and Least-Squares Fitting of Backbenders and Similar Nuclei

NUCLEAR STRUCTURE 130,132,134Ce, 158,160,162,164Er, 158Dy, 164,166,168Yb, 170W, 182Os; calculated rotational energies. Yrast, yrare states, band mixing, pairing interaction, Coriolis coupling.

doi: 10.1016/0375-9474(79)90096-4
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1979TU02      Atomkernenergie 33, 222 (1979)

J.K.Tuli, L.K.Peker

Recommended Normalization in Ba 140 Decay

RADIOACTIVITY 140Ba; evaluated Iγ. 140La transition deduced absolute Iγ.


1978DE02      Z.Phys. A284, 267 (1978)

F.W.N.de Boer, L.K.Peker, P.Koldewijn, J.Konijn

Crossing of Negative Parity Bands in Even-Even Nuclei Around A ≈ 150

NUCLEAR STRUCTURE 150Sm, 152Gd, 154Dy, 156Er; calculated band crossing.


1978KO03      Z.Phys. A284, 233 (1978)

J.Konijn, F.W.N.de Boer, P.Koldewijn, R.Beetz, L.K.Peker

Aligned Rotation of Octupole-Vibrational States in Deformed Nuclei

NUCLEAR STRUCTURE 154Gd, 156Dy, 162Er, 238U; calculated levels. VMI model.

doi: 10.1007/BF01411333
Citations: PlumX Metrics


1978PE01      Z.Phys. A285, 67 (1978)

L.K.Peker, F.W.N.de Boer, J.Konijn

On the Nature of the Superband in 156Dy

NUCLEAR STRUCTURE 156Dy; analyzed band structure.

doi: 10.1007/BF01410226
Citations: PlumX Metrics


1978PE02      Phys.Rev.Lett. 40, 744 (1978)

L.K.Peker, J.H.Hamilton

Double Crosing of the Ground Rotational Band and Super Band

NUCLEAR STRUCTURE 158Er; calculated double band crossing.

doi: 10.1103/PhysRevLett.40.744
Citations: PlumX Metrics


1977PE14      Z.Phys. A283, 121 (1977)

L.K.Peker, F.W.N.de Boer, J.Konijn

An Anomalous Behaviour of the Gamma Band in 156Dy

NUCLEAR STRUCTURE 156Dy; analyzed data; deduced anomalous behaviour in γ-band.

doi: 10.1007/BF01434072
Citations: PlumX Metrics


1975IV04      Izv.Akad.Nauk SSSR, Ser.Fiz. 39, 1695 (1975); Bull.Acad.Sci.USSR, Phys.Ser. 39, No.8, 108 (1975)

M.A.Ivanov, I.K.Lemberg, A.S.Mishin, L.K.Peker, I.N.Chugunov

Lifetimes of Excited States of 60Ni Excited in Heavy-Ion Reactions

NUCLEAR REACTIONS 51V(12C, 2np), E=32-42 MeV; measured Eγ, γγ, γ(t). 60Ni deduced levels, J, π, T1/2, γ-multipolarity, B(E2).


1974PE11      Izv.Akad.Nauk SSSR, Ser.Fiz. 38, 807 (1974); Bull.Acad.Sci.USSR, Phys.Ser. 38, No.4, 326 (1974)

L.K.Peker

Coexistence of Spherical and Deformed States in 51Cr Nucleus

NUCLEAR STRUCTURE 51Cr; calculated spherical, deformed states.


1974PE17      Izv.Akad.Nauk SSSR, Ser.Fiz. 38, 2633 (1974); Bull.Acad.Sci.USSR, Phys.Ser. 38, No.12, 150 (1974)

L.K.Peker, V.M.Sigalov

Coexistence of Spherical and Deformed States in Nuclei with Odd Mass Numbers

NUCLEAR STRUCTURE 153Tb, 155Ho, 151Sm; analyzed data; deduced β.


1974PE18      Izv.Akad.Nauk SSSR, Ser.Fiz. 38, 2119 (1974); Bull.Acad.Sci.USSR, Phys.Ser. 38, No.10, 90 (1974)

L.K.Peker, V.M.Sigalov

The Alaga Model and the Structure of the Spherical States of Odd-Neutron Nuclei with A of 145-153

NUCLEAR STRUCTURE 143,145,147,149Nd, 145,147,149,151Sm levels calculated μ.


1974PE19      Nucl.Data Sheets 12, 343 (1974)

L.K.Peker, V.M.Sigalov, Y.I.Kharitonov

Nuclear Data Sheets for A = 140

COMPILATION 140I, 140Xe, 140Cs, 140Ba, 140La, 140Ce, 140Pr, 140Nd, 140Pm, 140Sm, 140Eu; compiled, evaluated structure data.

doi: 10.1016/S0090-3752(74)80031-1
Citations: PlumX Metrics


1973AL16      Izv.Akad.Nauk SSSR, Ser.Fiz. 37, 965 (1973); Bull.Acad.Sci.USSR, Phys.Ser. 37, No.5, 48 (1974)

A.V.Aldushchenkov, N.A.Voinova, V.G.Dubro, A.I.Egorov, Y.V.Kalinichev, D.M.Kaminker, L.K.Peker, A.G.Sergeev

Three-Particle and 'Anomalous' Excited States of 101Tc

RADIOACTIVITY 101Mo [from 100Mo(n, γ)]; measured Eγ, Iγ; deduced log ft. 101Ru, 101Tc transitions measured ICC. 101Tc deduced levels, J, π.


1973PE17      Izv.Akad.Nauk SSSR, Ser.Fiz. 37, 1711 (1973); Bull.Acad.Sci.USSR, Phys.Ser. 37, No.8, 126 (1974)

L.K.Peker, E.I.Volmyanskii, B.F.Gerasimenko, V.G.Dubro

Interpretation of Some Multiparticle Levels Excited during the Decay of the 117Sb and 105Cd Isomers

NUCLEAR STRUCTURE 117Sb, 105Cd deduced level configurations.


1973RA22      Phys.Lett. 44B, 462 (1973)

Y.N.Rakivnenko, A.P.Klyucharev, V.A.Lutsik, E.A.Skakun, I.A.Romaniy, K.-H.Kaun, W.Neubert, W.Schulze, F.Stary, L.K.Peker, E.I.Volmyanski

A High-Spin Isomer in 204Bi

NUCLEAR REACTIONS 198Pt(11B, 5nγ), 203Tl(α, 3nγ); measured Eγ, Iγ(t), I(ce). Deduced ICC. 204Bi deduced level, T1/2, γ-multipolarity.

doi: 10.1016/0370-2693(73)90335-3
Citations: PlumX Metrics


1972AR36      Izv.Akad.Nauk SSSR, Ser.Fiz. 36, 2074 (1972); Bull.Acad.Sci.USSR, Phys.Ser. 36, 1826 (1973)

R.Arlt, V.V.Kuznetsov, W.Neubert, L.K.Peker, A.V.Potempa, U.Hagemann

Structure of the Isomer States of 148,150,152Tb and Two-Particle Levels of 148,150,152Cd and 146,148Sm

RADIOACTIVITY 148,150,152Tb; measured Eγ, Iγ; deduced levels, J, π, configurations. 146,148Sm, 148,150,152Gd, 154Dy deduced 2-particle states.


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