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NSR database version of May 10, 2024.

Search: Author = J.Cooper

Found 61 matches.

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2008TH03      J.Res.Natl.Inst.Stand.Technol. 113, 69 (2008)

A.K.Thompson, M.A.Coplan, J.W.Cooper, P.P.Hughes, R.E.Vest, C.Clark

Observation of the 3He(n, tp) Reaction by Detection of Far-Ultraviolet Radiation

ATOMIC PHYSICS 3He(n, t), E=low; measured Lyman alpha photon production.

doi: 10.6028/jres.113.006
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2007DA23      Nucl.Instrum.Methods Phys.Res. B261, 948 (2007)

D.Dashdorj, G.E.Mitchell, T.Kawano, J.A.Becker, U.Agvaanluvsan, M.B.Chadwick, J.R.Cooper, M.Devlin, N.Fotiades, P.E.Garrett, R.O.Nelson, C.Y.Wu, W.Younes

Neutron induced inelastic cross-sections of 150Sm for En = 1-35 MeV

NUCLEAR REACTIONS 150Sm(n, γ), E=1-35 MeV; measured Eγ, Iγ, excitation functions and partial γ-ray production cross sections. Compared results to model calculations.

doi: 10.1016/j.nimb.2007.04.161
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14148.


2005AH02      Phys.Rev. C 71, 024311 (2005)

I.Ahmad, J.C.Banar, J.A.Becker, T.A.Bredeweg, J.R.Cooper, D.S.Gemmell, A.Kraemer, A.Mashayekhi, D.P.McNabb, G.G.Miller, E.F.Moore, P.Palmer, L.N.Pangault, R.S.Rundberg, J.P.Schiffer, S.D.Shastri, T.-F.Wang, J.B.Wilhelmy

Search for x-ray induced decay of the 31-yr isomer of 178Hf using synchrotron radiation

NUCLEAR REACTIONS 178mHf(X-ray, X), E=8-30 keV; measured prompt and delayed Eγ, X-ray spectra; deduced σ upper limit for induced isomer decay. Comparison with previous results.

doi: 10.1103/PhysRevC.71.024311
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2005BE61      Eur.Phys.J. A 25, Supplement 1, 203 (2005)

N.Benczer-Koller, G.Kumbartzki, J.R.Cooper, T.J.Mertzimekis, M.J.Taylor, L.Bernstein, K.Hiles, P.Maier-Komor, M.A.McMahan, L.Phair, J.Powell, K.-H.Speidel, D.Wutte

First g-factor measurement using a radioactive 76Kr beam

NUCLEAR REACTIONS 26Mg(76Kr, 76Kr'), E=230 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin following projectile Coulomb excitation. 76Kr level deduced g factor. Transient field technique.

doi: 10.1140/epjad/i2005-06-098-8
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2005CH53      Nucl.Phys. A758, 126c (2005)

J.A.Church, L.Ahle, L.A.Bernstein, J.Cooper, F.S.Dietrich, J.Escher, C.Forssen, H.Ai, H.Amro, M.Babilon, C.Beausang, J.Caggiano, A.Heinz, R.Hughes, E.McCutchan, D.Meyer, C.Plettner, J.Ressler, V.Zamfir

Determining neutron capture cross sections with the Surrogate Reaction Technique: Measuring decay probabilities with STARS

NUCLEAR REACTIONS 92Zr(α, α'), (α, 3HeX), (α, tX), (α, dX), (α, pX), E=51 MeV; measured particle spectra. 92Zr(α, α'), (α, xnα), E=51 MeV; measured Eγ, Iγ, αγ-coin. 90,91,92Zr deduced transitions. Surrogate reaction technique.

doi: 10.1016/j.nuclphysa.2005.05.169
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2005PL03      Phys.Rev. C 71, 051602 (2005)

C.Plettner, H.Ai, C.W.Beausang, L.A.Bernstein, L.Ahle, H.Amro, M.Babilon, J.T.Burke, J.A.Caggiano, R.F.Casten, J.A.Church, J.R.Cooper, B.Crider, G.Gurdal, A.Heinz, E.A.McCutchan, K.Moody, J.A.Punyon, J.Qian, J.J.Ressler, A.Schiller, E.Williams, W.Younes

Estimation of (n, f) cross sections by measuring reaction probability ratios

NUCLEAR REACTIONS 236,238U(d, pF), (d, d'F), E=24, 32 MeV; measured fission probability ratios. Comparison with results from neutron-induced reactions.

doi: 10.1103/PhysRevC.71.051602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1275.


2005PL05      J.Phys.(London) G31, S1573 (2005)

C.Plettner, H.Ai, C.W.Beausang, L.A.Bernstein, L.Ahle, H.Amro, M.Babilon, J.T.Burke, J.A.Caggiano, R.F.Casten, J.A.Church, J.R.Cooper, B.Crider, G.Gurdal, A.Heinz, E.A.McCutchan, K.Moody, J.A.Punyon, J.Qian, J.J.Ressler, A.Schiller, E.Williams, W.Younes

Measuring reaction probability ratios to simulate neutron-induced cross-sections of short-lived nuclei

NUCLEAR REACTIONS 236,238U(d, d'F), (d, pF), E=24, 32 MeV; measured fragment yields; deduced fission probability ratios vs excitation energy. Surrogate method for neutron-induced fission cross-section determination.

doi: 10.1088/0954-3899/31/10/035
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2005SH49      Eur.Phys.J. A 25, 387 (2005)

T.M.Shneidman, R.V.Jolos, R.Krucken, A.Aprahamian, D.Cline, J.R.Cooper, M.Cromaz, R.M.Clark, C.Hutter, A.O.Macchiavelli, W.Scheid, M.A.Stoyer, C.Y.Wu

E2 transitions between positive- and negative-parity states of the ground-state alternating-parity bands

RADIOACTIVITY 252Cf(SF); measured Doppler-shifted Eγ, Iγ, γγ-, (fragment)γ-coin. 144Ba deduced transitions T1/2, B(E2), transition dipole, quadrupole, and octupole moments for alternating-parity band. Gammasphere array, cluster-model analysis.

doi: 10.1140/epja/i2005-10134-y
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2005ST22      Phys.Rev. C 72, 014309 (2005)

E.A.Stefanova, N.Benczer-Koller, G.J.Kumbartzki, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, L.Bernstein, J.R.Cooper, D.Judson, M.J.Taylor, M.A.McMahan, L.Phair

Near spherical shell-model structure of the 2+1 state in 40Ar from g-factor measurements

NUCLEAR REACTIONS C(40Ar, 40Ar'), E=80 MeV; C(46Ti, 46Ti'), E=100 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin following projectile Coulomb excitation. 40Ar level deduced g factor, configuration. Transient field technique, comparison with shell model calculations.

doi: 10.1103/PhysRevC.72.014309
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2005TA02      Phys.Lett. B 605, 265 (2005)

M.J.Taylor, N.Benczer-Koller, L.Bernstein, J.Cooper, K.Hiles, D.S.Judson, G.Kumbartzki, P.Maier-Komor, M.A.McMahan, T.J.Mertzimekis, L.Phair, S.J.Q.Robinson, Y.Y.Sharon, K.-H.Speidel, A.E.Stuchbery, L.Zamick

Shell model configurations in the 2+1 state in 46Ca from a g-factor measurement

NUCLEAR REACTIONS C(46Ca, 46Ca'), E=95 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin following projectile Coulomb excitation. 46Ca level deduced g-factor, configuration. Transient field technique, comparisons with neighboring isotopes.

doi: 10.1016/j.physletb.2004.11.021
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2004BA91      Phys.Rev. C 70, 044305 (2004)

D.L.Balabanski, M.Danchev, D.J.Hartley, L.L.Riedinger, O.Zeidan, J.Zhang, C.J.Barton, C.W.Beausang, M.A.Caprio, R.F.Casten, J.R.Cooper, A.A.Hecht, R.Krucken, J.R.Novak, N.V.Zamfir, K.E.Zyromski

Possible assignment of chiral twin bands in 188Ir

NUCLEAR REACTIONS 186W(7Li, 5n), E=52 MeV; measured Eγ, Iγ, γγ-coin. 188Ir deduced high-spin levels, J, π, configurations, B(M1)/B(E2), chiral twin bands. Tilted-axis cranking calculations, level systematics in neighboring isotopes discussed.

doi: 10.1103/PhysRevC.70.044305
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1090. Data from this article have been entered in the XUNDL database. For more information, click here.


2004BE13      Phys.Rev. C 69, 034320 (2004)

Z.Berant, A.Wolf, N.V.Zamfir, M.A.Caprio, D.S.Brenner, N.Pietralla, R.L.Gill, R.F.Casten, C.W.Beausang, R.Krucken, C.J.Barton, J.R.Cooper, A.A.Hecht, D.M.Johnson, J.R.Novak, H.Cheng, B.F.Albanna, G.Gurdal

g factor of the 2+1 state of 164Yb

RADIOACTIVITY 164Lu(EC) [from 155Gd(14N, 5n)]; measured Eγ, Iγ(θ, H), γγ-coin. 164Yb level deduced g factor. Comparison with model predictions. Systematic trends discussed.

doi: 10.1103/PhysRevC.69.034320
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2004DE15      Eur.Phys.J. A 20, 173 (2004)

A.Dewald, O.Moller, D.Tonev, A.Fitzler, B.Saha, K.Jessen, S.Heinze, A.Linnemann, J.Jolie, K.O.Zell, P.von Brentano, P.Petkov, R.F.Casten, M.Caprio, J.R.Cooper, R.Krucken, N.V.Zamfir, D.Bazzacco, S.Lunardi, C.Rossi Alvarez, F.Brandolini, C.Ur, G.De Angelis, D.R.Napoli, E.Farnea, N.Marginean, T.Martinez, M.Axiotis

Shape changes and test of the critical-point symmetry X(5) in N = 90 nuclei

NUCLEAR REACTIONS 154Gd(32S, 32S'), E=110 MeV; measured Doppler-shifted Eγ, Iγ, (particle)γ-coin following Coulomb excitation. 124Sn(36S, 4n), E=145 MeV; measured Eγ, Iγ, γγ-coin, DSA. 154Gd, 156Dy deduced levels T1/2, transition quadrupole moments, critical-point symmetry features. Recoil-distance and Doppler shift attenuation methods, IBA calculations.

doi: 10.1140/epja/i2002-10347-6
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2004KU11      Phys.Lett. B 591, 213 (2004)

G.Kumbartzki, J.R.Cooper, N.Benczer-Koller, K.Hiles, T.J.Mertzimekis, M.J.Taylor, K.-H.Speidel, P.Maier-Komor, L.Bernstein, M.A.McMahan, L.Phair, J.Powell, D.Wutte

First g factor measurement using a radioactive 76Kr beam

NUCLEAR REACTIONS 26Mg(76Kr, 76Kr'), E=230 MeV; 26Mg(78Kr, 78Kr'), E=224 MeV; measured Eγ, Iγ(θ, H, t) following projectile Coulomb excitation. 76,78Kr levels deduced g factors. Transient field technique, systematics in neighboring isotopes discussed.

doi: 10.1016/j.physletb.2004.04.040
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2003AH03      Phys.Rev. C 67, 041305 (2003)

I.Ahmad, J.C.Banar, J.A.Becker, T.A.Bredeweg, J.R.Cooper, D.S.Gemmell, A.Mashayekhi, D.P.McNabb, E.F.Moore, P.Palmer, R.S.Rundberg, J.P.Schiffer, S.D.Shastri, T.F.Wang, J.B.Wilhelmy

Search for x-ray induced decay of the 31-yr isomer of 178Hf at low x-ray energies

NUCLEAR REACTIONS 178mHf(X-ray, X), E=6-20 keV; measured upper limit for energy-integrated σ of x-ray induced isomer decay. Comparison with previous results.

doi: 10.1103/PhysRevC.67.041305
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2003AP01      Phys.Rev. C 67, 034309 (2003)

D.E.Appelbe, C.J.Barton, M.H.Muikku, J.Simpson, D.D.Warner, C.W.Beausang, M.A.Caprio, J.R.Cooper, J.R.Novak, N.V.Zamfir, R.A.E.Austin, J.A.Cameron, C.Malcolmson, J.C.Waddington, F.R.Xu

Detailed γ-ray spectroscopy of 55Cr and 56Cr: Confirmation of the subshell closure at N=32

NUCLEAR REACTIONS 48Ca(11B, 2np), (11B, 3np), E=35-40 MeV; measured Eγ, Iγ, γγ-coin. 55,56Cr deduced high-spin levels, J, π, configurations. Total Routhian surface calculations. Level systematics and shell features in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.67.034309
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2003BA01      Phys.Lett. 551B, 269 (2003)

C.J.Barton, M.A.Caprio, D.Shapira, N.V.Zamfir, D.S.Brenner, R.L.Gill, T.A.Lewis, J.R.Cooper, R.F.Casten, C.W.Beausang, R.Krucken, J.R.Novak

B(E2) values from low-energy Coulomb excitation at an ISOL facility: the N = 80, 82 Te isotopes

NUCLEAR REACTIONS C(130Te, 130Te'), (132Te, 132Te'), (134Te, 134Te'), E=350 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 130,132,134Te deduced transitions B(E2).

doi: 10.1016/S0370-2693(02)03066-6
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2003BA18      Phys.Rev. C 67, 034310 (2003)

C.J.Barton, D.S.Brenner, N.V.Zamfir, M.A.Caprio, A.Aprahamian, M.C.Wiescher, C.W.Beausang, Z.Berant, R.F.Casten, J.R.Cooper, R.L.Gill, R.Krucken, J.R.Novak, N.Pietralla, M.Shawcross, A.Teymurazyan, A.Wolf

Mass measurement of 80Y by β-γ coincidence spectroscopy

RADIOACTIVITY 80Y(EC), (β+) [from 58Ni(28Si, npα)]; measured Eγ, Eβ, βγ-coin; deduced Q(EC). 80Sr deduced transitions. Implications for astrophysical rp-process simulations discussed.

doi: 10.1103/PhysRevC.67.034310
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2003CA03      Eur.Phys.J. A 16, 177 (2003)

M.A.Caprio, N.V.Zamfir, E.A.McCutchan, R.F.Casten, Z.Berant, H.Amro, C.J.Barton, C.W.Beausang, D.S.Brenner, J.R.Cooper, R.L.Gill, G.Gurdal, A.A.Hecht, C.Hutter, R.Krucken, D.A.Meyer, J.R.Novak, N.Pietralla, P.H.Regan, J.J.Ressler

Measurement of 2+1 level lifetimes in 162Yb and 162Er by fast electronic scintillation timing

RADIOACTIVITY 162Lu(β+), (EC) [from 147Sm(19F, 4n)]; 162Tm(β+), (EC) [from 155Gd(12C, 5n), and subsequent decay]; measured Eγ, Iγ(t), γγ-, βγ-coin. 162Yb, 162Er levels deduced T1/2. Fast electronic scintillation timing, comparison with previous results.

doi: 10.1140/epja/i2002-10086-8
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2003DE24      Phys.Rev. C 68, 034314 (2003)

A.Dewald, R.Peusquens, B.Saha, P.von Brentano, A.Fitzler, T.Klug, I.Wiedenhover, M.P.Carpenter, A.Heinz, R.V.F.Janssens, F.G.Kondev, C.J.Lister, D.Seweryniak, K.Abu Saleem, R.Krucken, J.R.Cooper, C.J.Barton, K.Zyromski, C.W.Beausang, Z.Wang, P.Petkov, A.M.Oros-Peusquens, U.Garg, S.Zhu

Recoil-gated plunger lifetime measurements in 188Pb

NUCLEAR REACTIONS 40Ca(152Sm, 4n), E=805 MeV; measured Doppler-shifted Eγ, Iγ, γγ-, (recoil)γ-coin. 188Pb levels deduced T1/2, B(E2), deformation, collectivity. Recoil-distance technique, Gammasphere array, mass separator. Three-band mixing calculation.

doi: 10.1103/PhysRevC.68.034314
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Data from this article have been entered in the XUNDL database. For more information, click here.


2003HE25      Phys.Rev. C 68, 054310 (2003)

A.A.Hecht, C.W.Beausang, H.Amro, C.J.Barton, Z.Berant, M.A.Caprio, R.F.Casten, J.R.Cooper, D.J.Hartley, R.Krucken, D.A.Meyer, H.Newman, J.R.Novak, N.Pietralla, J.J.Ressler, A.Wolf, N.V.Zamfir, J.-Y.Zhang, K.E.Zyromski

Evidence for chiral symmetry breaking in 140Eu?

NUCLEAR REACTIONS 92Mo(51V, n2p), E=205 MeV; measured Eγ, Iγ, γγ-, (X-ray)γ-coin. 140Eu deduced high-spin levels, J, π, configurations, B(M1)/B(E2), possible chiral symmetry breaking. Cranked mean field and total Routhian surface calculations. Rotational band systematics in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.68.054310
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Data from this article have been entered in the XUNDL database. For more information, click here.


2003HU07      Phys.Rev. C 67, 054315 (2003)

C.Hutter, R.Krucken, A.Aprahamian, C.J.Barton, C.W.Beausang, M.A.Caprio, R.F.Casten, W.-T.Chou, R.M.Clark, D.Cline, J.R.Cooper, M.Cromaz, A.A.Hecht, A.O.Macchiavelli, N.Pietralla, M.Shawcross, M.A.Stoyer, C.Y.Wu, N.V.Zamfir

B(E2) values and the search for the critical point symmetry X(5) in 104Mo and 106Mo

RADIOACTIVITY 252Cf(SF); measured Doppler-shifted Eγ, Iγ, γγ-coin. 104,106Mo deduced levels T1/2, B(E2), transition quadrupole moments. Recoil-distance technique, Gammasphere array, comparison with model predictions.

doi: 10.1103/PhysRevC.67.054315
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2002CA49      Phys.Rev. C 66, 054310 (2002)

M.A.Caprio, N.V.Zamfir, R.F.Casten, C.J.Barton, C.W.Beausang, J.R.Cooper, A.A.Hecht, R.Krucken, H.Newman, J.R.Novak, N.Pietralla, A.Wolf, K.E.Zyromski

Low-spin structure of 156Dy through γ-ray spectroscopy

RADIOACTIVITY 156Er, 156Ho(β+), (EC) [from 148Sm(12C, 4n) and subsequent decay]; measured Eγ, Iγ, γγ-coin. 156Dy deduced levels, J, π, B(E2), feeding intensities. Comparisons with neighboring isotones and with model predictions.

doi: 10.1103/PhysRevC.66.054310
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Data from this article have been entered in the XUNDL database. For more information, click here.


2002KR09      Phys.Rev.Lett. 88, 232501 (2002)

R.Krucken, B.Albanna, C.Bialik, R.F.Casten, J.R.Cooper, A.Dewald, N.V.Zamfir, C.J.Barton, C.W.Beausang, M.A.Caprio, A.A.Hecht, T.Klug, J.R.Novak, N.Pietralla, P.von Brentano

B(E2) Values in 150Nd and the Critical Point Symmetry X(5)

NUCLEAR REACTIONS 150Nd(32S, 32S'), E=132 MeV; measured Eγ, Iγ, (particle)γ-coin, Doppler-shifted spectra following Coulomb excitation. 150Nd deduced levels T1/2, B(E2), symmetry features. Recoil-distance method.

doi: 10.1103/PhysRevLett.88.232501
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2002PI04      Phys.Rev. C65, 024317 (2002)

N.Pietralla, R.Krucken, C.J.Barton, C.W.Beausang, M.A.Caprio, R.F.Casten, J.R.Cooper, A.A.Hecht, J.R.Novak, N.V.Zamfir, A.Lisetskiy, A.Schmidt

Lifetimes of Quasideuteron Configurations in the Odd-Odd N = Z Nucleus 2550Mn25

NUCLEAR REACTIONS 40Ca(12C, np), E=27 MeV; measured Eγ, Iγ, γγ-coin, DSA. 50Mn deduced levels, J, π, T1/2, B(M1), B(E2), quasideuteron configurations. Comparison with shell-model predictions.

doi: 10.1103/PhysRevC.65.024317
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2002PO06      Phys.Rev. C66, 011304 (2002)

Zs.Podolyak, S.Al-Garni, R.F.Casten, J.R.Cooper, D.M.Cullen, A.Dewald, R.Krucken, H.Newman, J.N.Orce, C.J.Pearson, C.Ur, R.Venturelli, S.Vincent, C.Wheldon, P.M.Walker, F.R.Xu, A.Yamamoto, N.V.Zamfir

Deviations from Axial Symmetry in 181Os

NUCLEAR REACTIONS 160Gd(26Mg, 5n), E=117 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 181Os deduced high-spin levels T1/2, B(E2), quadrupole moments, triaxiality. Recoil-distance method, total Routhian surface calculations.

doi: 10.1103/PhysRevC.66.011304
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2002WO10      Phys.Rev. C66, 024323 (2002)

A.Wolf, N.V.Zamfir, M.A.Caprio, Z.Berant, D.S.Brenner, N.Pietralla, R.L.Gill, R.F.Casten, C.W.Beausang, R.Kruecken, K.E.Zyromski, C.J.Barton, J.R.Cooper, A.A.Hecht, H.Newman, J.R.Novak, J.Cederkall

Structure of low-lying states in 128Ba from γ-γ angular correlations and polarization measurements

RADIOACTIVITY 128La(EC) [from 116Sn(16O, 3np)]; measured Eγ, Iγ, γγ-coin, γ-ray polarization. 128Ba deduced levels, J, π, B(E2). Comparison with model predictions.

doi: 10.1103/PhysRevC.66.024323
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Data from this article have been entered in the XUNDL database. For more information, click here.


2002ZA04      Phys.Rev. C65, 044325 (2002)

N.V.Zamfir, M.A.Caprio, R.F.Casten, C.J.Barton, C.W.Beausang, Z.Berant, D.S.Brenner, W.T.Chou, J.R.Cooper, A.A.Hecht, R.Krucken, H.Newman, J.R.Novak, N.Pietralla, A.Wolf, K.E.Zyromski

102Pd: An E(5) nucleus ?

RADIOACTIVITY 102Ag(β+), (EC) [from 89Y(16O, 3n)]; measured Eγ, Iγ. 102Pd deduced levels, J, π, symmetry features.

doi: 10.1103/PhysRevC.65.044325
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2002ZA07      Phys.Rev. C65, 067305 (2002)

N.V.Zamfir, H.G.Borner, N.Pietralla, R.F.Casten, Z.Berant, C.J.Barton, C.W.Beausang, D.S.Brenner, M.A.Caprio, J.R.Cooper, A.A.Hecht, M.Krticka, R.Krucken, P.Mutti, J.R.Novak, A.Wolf

Lifetime and B(E2) Values for the 31+ Level in 152Sm

NUCLEAR REACTIONS 151Sm(n, γ), E=reactor; measured Doppler-broadened Eγ, Iγ. 152Sm level deduced T1/2, B(E2), phase coexistence. Gamma-ray induced Doppler broadening technique.

RADIOACTIVITY 152Eu(EC); measured γγ-coin, γ-ray polarization. 152Sm transition deduced δ.

doi: 10.1103/PhysRevC.65.067305
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2001BE10      Nucl.Phys. A682, 394c (2001)

C.W.Beausang, A.A.Hecht, K.E.Zyromski, D.Balabanski, C.J.Barton, M.A.Caprio, R.F.Casten, J.R.Cooper, D.Hartley, R.Krucken, J.R.Novak, N.V.Zamfir, J.-Y.Zhang, F.Donau

Evidence for Chiral Symmetry in the Mass A ∼ 130 Region

NUCLEAR REACTIONS 116Sn(24Mg, 3np), E=130, 135 MeV; 106Cd(35Cl, n2p), E=150 MeV; measured Eγ, Iγ, γγ-coin. 136Pm, 138Eu deduced high-spin levels, J, π, possible chiral twin bands.

doi: 10.1016/S0375-9474(00)00665-5
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2001CO19      Phys.Rev.Lett. 87, 132503 (2001)

J.R.Cooper, R.Krucken, C.W.Beausang, J.R.Novak, A.Dewald, T.Klug, G.Kemper, P.von Brentano, M.P.Carpenter, R.V.F.Janssens, C.J.Lister, I.Wiedenhover

Crossing of Shears Bands in 197Pb: B(M1) Values and Semiclassical Description

NUCLEAR REACTIONS 176Yb(26Mg, 5n), E=130 MeV; measured Doppler-shifted Eγ, Iγ, γγ-coin. 197Pb levels deduced T1/2, B(M1), shears band features. Gammasphere array, recoil distance technique.

doi: 10.1103/PhysRevLett.87.132503
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2001HE15      Phys.Rev. C63, 051302 (2001)

A.A.Hecht, C.W.Beausang, K.E.Zyromski, D.L.Balabanski, C.J.Barton, M.A.Caprio, R.F.Casten, J.R.Cooper, D.J.Hartley, R.Krucken, D.Meyer, H.Newman, J.R.Novak, E.S.Paul, N.Pietralla, A.Wolf, N.V.Zamfir, J.-Y.Zhang, F.Donau

Evidence for Chiral Symmetry Breaking in 136Pm and 138Eu

NUCLEAR REACTIONS 116Sn(24Mg, 3np), E=130, 135 MeV; 106Cd(35Cl, n2p), E=150 MeV; measured Eγ, Iγ, γγ-coin, γ-ray polarization. 136Pm, 138Eu deduced high-spin levels, J, π, configurations, B(M1)/B(E2), chiral twin bands. Comparison with tilted axis cranking model calculations. Yrast ball, Eurogam I arrays.

doi: 10.1103/PhysRevC.63.051302
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2001KE12      Eur.Phys.J. A 11, 121 (2001)

G.Kemper, A.Dewald, I.Wiedenhover, R.Peusquens, S.Kasemann, K.O.Zell, P.von Brentano, H.Hubel, S.Chmel, A.Gorgen, D.Bazzacco, R.Venturelli, S.Lunardi, D.R.Napoli, F.Hannachi, A.Lopez-Martens, R.Krucken, J.R.Cooper, R.M.Clark, M.A.Deleplanque, I.Y.Lee, A.O.Machiavelli, F.S.Stephens

Investigation of the Magnetic Rotation in 196Pb

NUCLEAR REACTIONS 164Dy(36S, 4n), E=168 MeV; measured Doppler-shifted Eγ, γγ-coin. 196Pb deduced high-spin levels, J, π, magnetic rotational band, T1/2, B(M1), role of shears mechanism. Euroball array, coincidence recoil distance technique.

doi: 10.1007/s100500170076
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2001KR13      Phys.Rev. C64, 017305 (2001)

R.Krucken, W.-T.Chou, J.R.Cooper, C.W.Beausang, C.J.Barton, M.A.Caprio, R.F.Casten, A.A.Hecht, J.R.Novak, N.Pietralla, A.Wolf, N.V.Zamfir

Lifetimes in Neutron-Rich Fission Fragments using the Differential Recoil Distance Method

RADIOACTIVITY 252Cf(SF); measured Doppler-shifted Eγ, Iγ, γγ-, (fragment)γ-coin. 104Mo, 110Ru, 144Ba deduced levels T1/2, transition quadrupole moments. Differential recoil distance method.

doi: 10.1103/PhysRevC.64.017305
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2001NE11      Phys.Rev. C64, 027304 (2001)

H.Newman, J.R.Novak, C.W.Beausang, C.J.Barton, M.A.Caprio, R.F.Casten, J.R.Cooper, A.A.Hecht, R.Krucken, N.Pietralla, A.Wolf, N.V.Zamfir, J.-Y.Zhang, K.E.Zyromski, I.Birriel, J.Saladin

High-Spin States in 203Rn

NUCLEAR REACTIONS 174Yb(34S, 5n), E=167 MeV; 168Er(40Ar, 5n), E=188 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 203Rn deduced high-spin levels, J, π, configurations. Gammasphere, Yrast ball arrays, fragment mass analyzer.

doi: 10.1103/PhysRevC.64.027304
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2001PI12      Phys.Rev. C64, 031301 (2001)

N.Pietralla, C.J.Barton III, R.Krucken, C.W.Beausang, M.A.Caprio, R.F.Casten, J.R.Cooper, A.A.Hecht, H.Newman, J.R.Novak, N.V.Zamfir

Coulomb Excitation of the 2ms+ State of 96Ru in Inverse Kinematics

NUCLEAR REACTIONS C(96Ru, 96Ru'), E=280 MeV; measured Eγ, Iγ, γγ-coin following projectile Coulomb excitation. 96Ru deduced transitions B(M1), B(E2), mixed-symmetry 2+ state. Comparison with neighboring nuclide 94Mo, IBM-2, shell model, and quasiparticle phonon model calculations.

doi: 10.1103/PhysRevC.64.031301
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2001ST04      Phys.Rev.Lett. 86, 971 (2001)

K.Starosta, T.Koike, C.J.Chiara, D.B.Fossan, D.R.LaFosse, A.A.Hecht, C.W.Beausang, M.A.Caprio, J.R.Cooper, R.Krucken, J.R.Novak, N.V.Zamfir, K.E.Zyromski, D.J.Hartley, D.L.Balabanski, J.-Y.Zhang, S.Frauendorf, V.I.Dimitrov

Chiral Doublet Structure in Odd-Odd N = 75 Isotones: Chiral vibrations

NUCLEAR REACTIONS 124Sn(10B, 4n), E=47 MeV; 123Sb(13C, 4n), E=64 MeV; 116Sn(24Mg, 4n), E=130 MeV; measured Eγ, Iγ, γγ-coin. 130Cs, 132La, 136Pm deduced high-spin levels, J, π, possible chiral vibrations. Tilted axis cranking calculations.

doi: 10.1103/PhysRevLett.86.971
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2001TO06      Phys.Rev. C63, 034314 (2001)

B.E.Tomlin, C.J.Barton, N.V.Zamfir, M.A.Caprio, R.L.Gill, R.Krucken, J.R.Novak, J.R.Cooper, K.E.Zyromski, G.Cata-Danil, C.W.Beausang, A.Wolf, N.A.Pietralla, H.Newman, J.Cederkall, B.Liu, Z.Wang, R.F.Casten, D.S.Brenner

Mass Measurements of 70Se, 71Se, 72Br, and 73Br

RADIOACTIVITY 70,71Se, 72,73Br(β+) [from 58Ni(HI, xnyp)]; measured β-spectrum, βγ-coin; deduced Q(EC), mass excess. Comparison with model predictions.

doi: 10.1103/PhysRevC.63.034314
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2001WU03      Phys.Rev. C64, 014307 (2001); Comment Phys.Rev. C66, 039801 (2002)

C.Y.Wu, D.Cline, A.B.Hayes, M.W.Simon, R.Krucken, J.R.Cooper, C.J.Barton, C.W.Beausang, C.Bialik, M.A.Caprio, R.F.Casten, A.A.Hecht, H.Newman, J.Novak, N.Pietralla, K.Zyromski, N.V.Zamfir

Two-Phonon γ-Vibrational Strength in Osmium Nuclei

NUCLEAR REACTIONS 188,190Os(58Ni, 58Ni'), E=275 MeV; measured Doppler-shifted Eγ, Iγ, γγ-, (particle)γ-coin following Coulomb excitation. 188,190Os deduced levels, J, π, B(E2), two-phonon γ-vibration strength. Recoil-distance technique.

doi: 10.1103/PhysRevC.64.014307
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2000AP01      Phys.Rev. C61, 037303 (2000)

D.E.Appelbe, C.W.Beausang, C.J.Barton, M.A.Caprio, R.F.Casten, J.Cederkall, J.R.Cooper, R.Krucken, J.R.Novak, N.V.Zamfir, Z.Wang

Evidence for Superdeformation in 149, 150Dy: Onset of the collapse of the Z = 66 deformed shell closure ?

NUCLEAR REACTIONS 120Sn(34S, 4n), (34S, 5n), E=175 MeV; measured Eγ, Iγ, γγ-coin. 149,150Dy deduced possible continuum superdeformed transitions.

doi: 10.1103/PhysRevC.61.037303
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2000GR32      Phys.Rev. C62, 064304 (2000)

J.Groger, J.Jolie, R.Krucken, C.W.Beausang, M.Caprio, R.F.Casten, J.Cederkall, J.R.Cooper, F.Corminboeuf, L.Genilloud, G.Graw, C.Gunther, M.de Huu, A.I.Levon, A.Metz, J.R.Novak, N.Warr, T.Wendel

Nuclear Structure of 196Au: More evidence for its supersymmetric description

NUCLEAR REACTIONS 196Pt(p, n), (p, 2n), E=9.1-11.7 MeV; measured Eγ, Iγ, γ-ray excitation functions. 196Pt(p, n), E=9.1 MeV; measured Eγ, Iγ, E(Ce), I(ce), (X-ray)γ-, (ce)γ-, γγ-coin. 196Au deduced levels, J, π. Comparison with extended supersymmetry model predictions.

doi: 10.1103/PhysRevC.62.064304
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2000GU22      Phys.Rev. C61, 064602 (2000)

C.Gunther, R.Krucken, C.J.Barton, C.W.Beausang, R.F.Casten, Gh.Cata-Danil, J.R.Cooper, J.Groger, J.Novak, N.V.Zamfir

Coulomb Excitation of Vibrational States in 232Th with 16O Projectiles

NUCLEAR REACTIONS 232Th(16O, 16O'), E=80 MeV; measured Eγ, Iγ, γγ-coin following Coulomb excitation. 232Th deduced high-spin levels, J, π, transition intensities, vibrational bands features.

doi: 10.1103/PhysRevC.61.064602
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1999HU22      Phys.Rev. A 59, 3397 (1999)

M.-T.Huang, R.Wehlitz, Y.Azuma, L.Pibida, I.A.Sellin, J.W.Cooper, M.Koide, H.Ishijima, T.Nagata

Single and double photoionization of lithium

NUCLEAR REACTIONS Li(γ, X), E=80-424 eV; measured reaction products; deduced σ and uncertainties. Comparison with calculations.

doi: 10.1103/physreva.59.3397
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1999KR10      Phys.Lett. 454B, 15 (1999)

R.Krucken, C.J.Barton, C.W.Beausang, R.F.Casten, G.Cata-Danil, J.R.Cooper, J.Novak, L.Yang, M.Wilhelm, N.V.Zamfir, A.Zilges

Nature of Excited 0+ States in 154Sm

NUCLEAR REACTIONS 154Sm(16O, 16O'), E=65 MeV; measured Eγ, Iγ, (particle)γ-, γγ-coin, DSA following Coulomb excitation. 154Sm deduced levels T1/2, B(E2), configuration. Yrast ball, photoelectric cells. Interacting boson model, geometric collective model.

doi: 10.1016/S0370-2693(99)00337-8
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1999NO03      Phys.Rev. C59, R2989 (1999)

J.R.Novak, C.W.Beausang, N.Amzal, R.F.Casten, G.Cata Danil, J.F.C.Cocks, J.R.Cooper, P.T.Greenlees, F.Hannachi, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, R.Krucken, P.Kuusiniemi, M.Leino, B.Liu, M.Muikku, A.Savelius, T.Socci, J.T.Thomas, N.V.Zamfir, J.-Y.Zhang, S.Frauendorf

High-Spin States in 205Rn: A new shears band structure ?

NUCLEAR REACTIONS 170Er(40Ar, 5n), E=183 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 197Au(14N, 6n), E=90-110 MeV; measured Eγ, Iγ, γγ-coin. 205Rn deduced high-spin levels, possible J, π, B(M1)/B(E2), configurations, shears band. Jurosphere array.

doi: 10.1103/PhysRevC.59.R2989
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1999ZA13      Phys.Rev. C60, 054312 (1999)

N.V.Zamfir, R.F.Casten, M.A.Caprio, C.W.Beausang, R.Krucken, J.R.Novak, J.R.Cooper, G.Cata-Danil, C.J.Barton

B(E2) Values and Phase Coexistence 152Sm

RADIOACTIVITY 152Eu(EC); measured Eγ, Iγ, γγ-coin. 152Sm deduced transitions B(E2), phase coexistence features. Mixing calculations, interacting boson model calculations.

doi: 10.1103/PhysRevC.60.054312
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1999ZA15      Phys.Rev. C60, 054319 (1999)

N.V.Zamfir, R.F.Casten, B.Liu, D.S.Brenner, C.J.Barton, R.Krucken, C.W.Beausang, J.R.Novak, J.R.Cooper, G.Cata-Danil, R.L.Gill, D.D.Warner

Status of the Kπ = 02+ Band in 162Dy

RADIOACTIVITY 162Ho(β+), (EC) [from 159Tb(α, n)]; measured Eγ, Iγ, γγ-coin following β decay. 162Dy deduced levels, J, π, B(E2), possible two-phonon vibration.

doi: 10.1103/PhysRevC.60.054319
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1993IS09      J.Phys.Soc.Jpn. 62, 2803 (1993)

K.Ishida, Y.Kitaoka, N.Ogata, T.Kamino, K.Asayama, J.R.Cooper, N.Athanassopoulou

Cu NMR and NQR Studies of Impurities-Doped YBa2(Cu(1-x)M(x))3O7(M = Zn and Ni)

NUCLEAR MOMENTS 63Cu; measured NMR, NQR; deduced normal, superconducting properties in impurity-doped YBa2(Cu(1-x)M(x))3O7(M=Zn, Ni).

doi: 10.1143/JPSJ.62.2803
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1982ME16      Phys.Rev. A 25, 2113 (1982)

G.Mehlman, J.W.Cooper, E.B.Saloman

Absolute photoabsorption cross section of the K shell of atomic lithium

NUCLEAR REACTIONS Li(γ, X), E=68-104 eV; measured reaction products; deduced σ. Comparison with calculations.

doi: 10.1103/physreva.25.2113
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1974GH02      Nucl.Phys. A223, 118 (1974)

S.K.Ghorai, R.Vos, J.R.Cooper, W.L.Alford

The (n, 2n) Cross Sections of 85Rb, 87Rb and 144Sm

NUCLEAR REACTIONS 85,87Rb, 144Sm(n, 2n)E=14.9 to 17.0 MeV; measured σ(E). Natural targets.

doi: 10.1016/0375-9474(74)90280-2
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1972EV01      Phys.Rev. C6, 1372 (1972)

J.L.Evans, J.R.Cooper, D.M.Moore, W.L.Alford

Positron Branching in the Decay of 143Sm, 141Nd, and 140Pr

RADIOACTIVITY 143Sm, 141Nd, 140Pr; measured I(K X-ray)/Iγ ratios; deduced K/β+ ratios.

doi: 10.1103/PhysRevC.6.1372
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1971BR36      Phys.Rev. C4, 1250 (1971)

R.L.Brodzinski, L.A.Rancitelli, J.A.Cooper, N.A.Wogman

High-Energy Proton Spallation of Titanium

NUCLEAR REACTIONS Ti(p, spallation), E=15-584 MeV; measured σ(E).

doi: 10.1103/PhysRevC.4.1250
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1971BR37      Phys.Rev. C4, 1257 (1971)

R.L.Brodzinski, L.A.Rancitelli, J.A.Cooper, N.A.Wogman

High-Energy Proton Spallation of Iron

NUCLEAR REACTIONS Fe(p, spallation), E=14-585 MeV; measured σ(E).

doi: 10.1103/PhysRevC.4.1257
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1971GH04      J.Nucl.Energy 25, 319 (1971)

S.K.Ghorai, J.R.Cooper, J.D.Moore, W.L.Alford

Some (n, p) Cross-Sections of 46Ti, 47Ti and 48Ti

NUCLEAR REACTIONS 46,47,48Ti(n, p), E=3.4-6.1 MeV; measured activation σ.

doi: 10.1016/0022-3107(71)90063-3
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1970CO22      Phys.Rev. C2, 451 (1970)

J.C.Cooper, B.Crasemann

Beta Decay of 19O to the 1/2- State of 19F

RADIOACTIVITY 19O; measured βγ-coin; deduced log ft, β-branching, Iβ.

doi: 10.1103/PhysRevC.2.451
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1968CO05      Nucl.Phys. A109, 603(1968)

J.A.Cooper, J.M.Hollander, J.O.Rasmussen

Energy Levels of 90Nb Populated by the Decay of 90Mo

RADIOACTIVITY 90Mo[from 93Nb(p, 4n), zr(α, xn)]; measured Eγ, Iγ, γγ-coin. 90Nb deduced levels, J, π, ICC, log ft. Natural targets. Ge(Li) detector.

doi: 10.1016/0375-9474(68)90031-6
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1966CO01      Proc.Intern.Conf.Internal Conversion Process, Nashville, Tenn. (1965), J.H.Hamilton, Ed., Academic Press, Inc., New York, p.555 (1966)

J.A.Cooper, J.M.Hollander, J.O.Rasmussen

Very Low Energy Isomer in the Decay of Mo90

NUCLEAR STRUCTURE 90Mo; measured not abstracted; deduced nuclear properties.


1965CO12      Phys.Rev.Lett. 15, 680 (1965)

J.A.Cooper, J.M.Hollander, J.O.Rasmussen

Effect of the Chemical State on the Lifetime of the 24-Second Isomer of Nb90*

NUCLEAR STRUCTURE 90Nb; measured not abstracted; deduced nuclear properties.

doi: 10.1103/PhysRevLett.15.680
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1965CO14      Nucl.Phys. 72, 113 (1965)

J.A.Cooper, J.M.Hollander, M.I.Kalkstein, J.O.Rasmussen

Decay of 90Mo

RADIOACTIVITY 90Mo [from Zr(α, xn), Br(14N, xn), 93Nb(p, 4n)]; measured Eγ, Iγ, ICC, EC/β+ ratio. 90Nb deduced levels, J, π. Natural targets.

doi: 10.1016/0029-5582(65)90630-9
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1964CO15      UCRL-11213, p. 20 (1964)

J.A.Cooper, R.Gatti, J.O.Rasmussen, S.G.Thompson

Antimony-131 Gamma Spectrum

NUCLEAR STRUCTURE 131Sb; measured not abstracted; deduced nuclear properties.


1964CO30      J.Inorg.Nucl.Chem. 26, 2041 (1964)

J.A.Cooper, R.C.Gatti, J.O.Rasmussen, S.G.Thompson

γ-Ray Spectrum of Sb131

NUCLEAR STRUCTURE 131Sb; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0022-1902(64)80147-0
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Note: The following list of authors and aliases matches the search parameter J.Cooper: , J.A.COOPER, J.C.COOPER, J.R.COOPER, J.W.COOPER