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Search: Author = G.J.Kumbartzki

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2018SH36      Nucl.Phys. A980, 131 (2018)

Y.Y.Sharon, N.Benczer-Koller, G.J.Kumbartzki, L.Zamick, R.F.Casten

Systematics of the ratio of electric quadrupole moments Q(2+1) to the square root of the reduced transition probabilities B(E2; 0+1 → 2+1) in even-even nuclei

doi: 10.1016/j.nuclphysa.2018.10.027
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2016BE24      Phys.Rev. C 94, 034303 (2016)

N.Benczer-Koller, G.J.Kumbartzki, K.-H.Speidel, D.A.Torres, S.J.Q.Robinson, Y.Y.Sharon, J.M.Allmond, P.Fallon, I.Abramovic, L.A.Bernstein, J.E.Bevins, H.L.Crawford, Z.E.Guevara, A.M.Hurst, L.Kirsch, T.A.Laplace, A.Lo, E.F.Matthews, I.Mayers, L.W.Phair, F.Ramirez, A.Wiens

Magnetic moment and lifetime measurements of Coulomb-excited states in 106Cd

NUCLEAR REACTIONS 12C(106Cd, 106Cd'), E=410 MeV; measured particle spectra using Si surface-barrier detector, Eγ, Iγ, (particle)γ-coin using four clover HPGe detectors, g factors by the transient-field technique, level half-lives by DSAM at LBNL cyclotron facility. Coulomb excitation. 106Cd; deduced levels, J, B(E2). Comparison with large-scale shell-model, and collective model calculations.

doi: 10.1103/PhysRevC.94.034303
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2016KU05      Phys.Rev. C 93, 044316 (2016)

G.J.Kumbartzki, N.Benczer-Koller, K.-H.Speidel, D.A.Torres, J.M.Allmond, P.Fallon, I.Abramovic, L.A.Bernstein, J.E.Bevins, H.L.Crawford, Z.E.Guevara, G.Gurdal, A.M.Hurst, L.Kirsch, T.A.Laplace, A.Lo, E.F.Matthews, I.Mayers, L.W.Phair, F.Ramirez, S.J.Q.Robinson, Y.Y.Sharon, A.Wiens

Z = 50 core stability in 110Sn from magnetic-moment and lifetime measurements

NUCLEAR REACTIONS 12C(106Cd, 8Be)110Sn, 12C(106Cd, 12C)106Cd, E=390, 400, 410 MeV; measured particle spectra, Eγ, Iγ, (particle)γ-coin, γγ(θ), level half-lives using DSAM and lineshape analysis, g factors using transient field technique at LBNL 88-Inch Cyclotron facility, multi-layered target of carbon, gadolinium, tantalum and copper layers. 110Sn; deduced levels, J, π, B(E2), magnetic moments, configurations, no evidence for excitation of protons from the closed Z=50 core. Comparison with previous experimental results, and with shell model calculations. Systematics of B(E2) values for the first 2+ states in A=104-130, even-even Sn nuclei.

NUCLEAR MOMENTS 110Sn; measured g factors using transient field technique in 12C(106Cd, 8Be) reaction at 410 MeV, and using a multi-layered target; deduced magnetic moments. Comparison with shell model calculations. Systematics of g factors for the first 2+ states in A=104-130, even-even Sn nuclei.

doi: 10.1103/PhysRevC.93.044316
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2014KU10      Phys.Rev. C 89, 064305 (2014)

G.J.Kumbartzki, N.Benczer-Koller, S.Burcher, A.Ratkiewicz, S.L.Rice, Y.Y.Sharon, L.Zamick, K.-H.Speidel, D.A.Torres, K.Sieja, M.McCleskey, A.Cudd, M.Henry, A.Saastamoinen, M.Slater, A.Spiridon, S.Yu.Torilov, V.I.Zherebchevsky, G.Gurdal, S.J.Q.Robinson, S.D.Pain, J.T.Burke

Transition from collectivity to single-particle degrees of freedom from magnetic moment measurements on 8238Sr44 and 9038Sr52

NUCLEAR MOMENTS 82,90Sr, 78,86Kr; measured precession angles, g factors of first 2+ and 4+ states, second 2+ state in 78Kr by transient-field technique in Coulomb excitation and α-pickup reaction at K500-TAMU cyclotron facility. Comparison with shell-model calculations and previous experimental results. Systematics of g factors of first 2+ states in even-even nuclei with Z=30-48, N=30-70. Discussed proton subshell closures at Z=38 and Z=40.

NUCLEAR REACTIONS 12C(78Kr, 8Be), (78Kr, 78Kr'), E=249.6 MeV; 12C(86Kr, 8Be), (86Kr, 86Kr'), E=258.0, 266.6, 275.2 MeV; measured Eγ, Iγ, Eα, Iα, particle spectra, αγ-, (particle)γ-coin, angular correlations, precession angles, particle yields at Texas A-M cyclotron facility. 78,86Kr, 82,90Sr; deduced levels, g factors. Comparison with shell-model calculations and previous experimental results.

doi: 10.1103/PhysRevC.89.064305
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2013GU23      Phys.Rev. C 88, 014301 (2013)

G.Gurdal, E.A.Stefanova, P.Boutachkov, D.A.Torres, G.J.Kumbartzki, N.Benczer-Koller, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, T.Ahn, V.Anagnostatou, C.Bernards, M.Elvers, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, E.Williams

Measurements of g(41+, 22+)in 70, 72, 74, 76Ge: Systematics of low-lying structures in 30 ≤ Z ≤ 40 and 30 ≤ N ≤ 50 nuclei

NUCLEAR REACTIONS C, Mg(70Ge, 70Ge'), (72Ge, 72Ge'), (74Ge, 74Ge'), (76Ge, 76Ge'), E=165-225 MeV; measured Eγ, precession angles, angular correlations; deduced g factors. Natural C or Mg targets with mid layer of Gd or Fe and backing of Ta and Cu.

NUCLEAR MOMENTS 70,72,74,76Ge; measured g factors of first and second 2+ and first 4+ states using transient field (TF) technique following Coulomb excitation in inverse kinematics at WNSL-Yale facility. Systematics of g factors for neighboring nuclides of even-even N=32-50, Z=30-38. Comparison with large-scale shell-model, collective models, and IBA-II, and with previous experimental studies. No evidence for shell closure for neutrons at N=38 or N=40.

doi: 10.1103/PhysRevC.88.014301
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2013RI08      Phys.Rev. C 88, 044334 (2013)

S.L.Rice, Y.Y.Sharon, N.Benczer-Koller, G.J.Kumbartzki, L.Zamick

Systematics of low-lying state transition probabilities and excitation energies in the region 30≤Z≤38 and 30≤N≤50

NUCLEAR STRUCTURE 60,62,64,66,68,70,72,74,76,78,80Zn; 64,66,68,70,72,74,76,78,80,82Ge; 66,68,70,72,74,76,78,80,82,84Se; 72,74,76,78,80,82,84,86Kr; 76,78,80,82,84,86,88Sr; analyzed level energies of first two 2+ and first 4+ states, B(E2), E(4+)/E(2+) as function of neutron number and parameter P=NpNn/(Np+Nn). Competition between single-particle and collective modes of nuclear excitation.

doi: 10.1103/PhysRevC.88.044334
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2013ST24      Phys.Rev. C 88, 051304 (2013)

A.E.Stuchbery, J.M.Allmond, A.Galindo-Uribarri, E.Padilla-Rodal, D.C.Radford, N.J.Stone, J.C.Batchelder, J.R.Beene, N.Benczer-Koller, C.R.Bingham, M.E.Howard, G.J.Kumbartzki, J.F.Liang, B.Manning, D.W.Stracener, C.-H.Yu

Electromagnetic properties of the 2+1 state in 134Te: Influence of core excitation on single-particle orbits beyond 132Sn

NUCLEAR REACTIONS C(130Te, 130Te'), (134Te, 134Te'), E=390 MeV, also 343 MeV for 130Te; measured scattered particle spectra, Eγ, Iγ, (particle)γ-coin, (particle)γ(θ) using HyBall array for particles and Clarion array of Clover Ge detectors for γ rays at HRIBF-ORNL facility. Combined analysis of B(E2) from Coulomb excitation and g factor from recoil-in vacuum (RIV) method. 130,134Te; deduced level, B(E2) and g factors of first 2+ states. Comparison with previous experimental results, and with theoretical calculations. Systematics of g factors and B(E2) values for 130,132,134,136Te, and for first 2+, 4+ and 6+ states in 134Te.

NUCLEAR MOMENTS 134Te; measured g factor of first 2+ state by recoil-in vacuum (RIV) method in Coulomb excitation at HRIBF-ORNL facility. Combined analysis of Coulomb excitation and recoil-in vacuum (RIV) method. Systematics of g factors of first 2+ states in 130,132,134,136Te. Comparison with theoretical calculations.

doi: 10.1103/PhysRevC.88.051304
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2012KU14      Phys.Rev. C 85, 044322 (2012)

G.J.Kumbartzki, K.-H.Speidel, N.Benczer-Koller, D.A.Torres, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, P.Maier-Komor, T.Ahn, V.Anagnostatou, Ch.Bernards, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, E.Williams

Structure of the Sr-Zr isotopes near and at the magic N=50 shell from g-factor and lifetime measurements in 8840Zr and 84, 86, 3888Sr

NUCLEAR REACTIONS 12C(84Sr, X)84Sr/86Sr/88Sr/88Zr, E=243-285 MeV; measured Eγ, Iγ, (12C)γ-, αγ-, γγ-coin, level half-lives by DSA, g factors. 84,86,88Sr, 88Zr; deduced levels, J, π, B(E2). Systematics of B(E2) values for first 2+ states in even-even N=40-62 Sr and Zr nuclei.

NUCLEAR MOMENTS 88Zr, 84,86,88Sr; measured g factors of 2+ and first 4+ states using transient field technique in inverse kinematics. Comparison with previous studies and with shell model calculations. Systematics of g factors of first 2+ states in even-even N=42-62 Sr and Zr nuclei.

doi: 10.1103/PhysRevC.85.044322
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2012KU24      Phys.Rev. C 86, 034319 (2012)

G.J.Kumbartzki, N.Benczer-Koller, D.A.Torres, B.Manning, P.D.O'Malley, Y.Y.Sharon, L.Zamick, C.J.Gross, D.C.Radford, S.J.Q.Robinson, J.M.Allmond, A.E.Stuchbery, K.-H.Speidel, N.J.Stone, C.R.Bingham

Transient field g factor and mean-life measurements with a rare isot ope beam of 126Sn

NUCLEAR REACTIONS C(124Sn, C'), (126Sn, C'), [124,126Sn secondary beams from U(p, X), E=50 MeV primary reaction], E=378 MeV; measured Eγ, Iγ, (particle)γ-coin, level half-lives by DSAM at HRIBF in ORNL. 124,126Sn; deduced levels, g factors, B(E2).

NUCLEAR MOMENTS 124,126Sn; measured precession angle, γγ(θ), g factor, level half-lives by DSAM. Coulomb excitation in inverse kinematics with transient field and Doppler shift attenuation technique. Comparison with large-scale shell-model and quasiparticle random-phase calculations. Systematics of g factors for first 2+ states in A=112-226 Sn isotopes.

doi: 10.1103/PhysRevC.86.034319
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2012KU39      J.Phys.:Conf.Ser. 366, 012028 (2012)

G.J.Kumbartzki

g-factor measurements of short lived states in the mass region 50 < A < 110

doi: 10.1088/1742-6596/366/1/012028
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2012TO01      Phys.Rev. C 85, 017305 (2012)

D.A.Torres, G.J.Kumbartzki, Y.Y.Sharon, L.Zamick, B.Manning, N.Benczer-Koller, K.-H.Speidel, T.Ahn, V.Anagnostatou, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, G.Gurdal, M.J.Taylor, P.Maier-Komor, M.Hjorth-Jensen, S.J.Q.Robinson

Measurement of the 96Ru g(41+) factor and its nuclear structure interpretation

NUCLEAR REACTIONS 12C(96Ru, 96Ru'), E=343, 353 MeV; measured 12C spectra, Eγ, Iγ, (12C)g-coin, (12C)γ(θ), precession angle in transient magnetic field, half-life by DSAM. 96Ru; deduced level, half-life of first 2+, g factors of first 2+ and 4+ states, B(E2). Coulomb excitation in inverse kinematics. Comparison with large-scale shell-model calculations.

NUCLEAR MOMENTS 96Ru; measured g factors of first 2+ and 4+ states by transient magnetic field technique in inverse kinematics.

doi: 10.1103/PhysRevC.85.017305
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2011TO09      Phys.Rev. C 84, 044327 (2011)

D.A.Torres, G.J.Kumbartzki, Y.Y.Sharon, L.Zamick, B.Manning, N.Benczer-Koller, G.Gurdal, K.-H.Speidel, M.Hjorth-Jensen, P.Maier-Komor, S.J.Q.Robinson, T.Ahn, V.Anagnostatou, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner

First g-factor measurements of the 21+ and the 41+ states of radioactive 100Pd

NUCLEAR REACTIONS 12C(96Ru, 8Be), E=350 MeV; measured particle spectra, Eγ, Iγ, αγ-, γγ-coin, γγ(θ), precession angle. 100Pd; deduced levels, J, π, g factors, B(E2) values.

NUCLEAR MOMENTS 100Pd; measured g-factors of first 2+, 4+ states by transient magnetic field technique in inverse kinematics. Comparison with large-scale shell-model calculations and collective-model predictions.

doi: 10.1103/PhysRevC.84.044327
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2010GU20      Phys.Rev. C 82, 064301 (2010)

G.Gurdal, G.J.Kumbartzki, N.Benczer-Koller, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, T.Ahn, R.Casperson, A.Heinz, G.Ilie, J.Qian, V.Werner, E.Williams, R.Winkler, D.McCarthey

g factors of the low-lying states in 106Pd: Examination of the vibrational character of 106Pd

NUCLEAR MOMENTS 106Pd; measured g factors and half-lives of low lying 2+ and 4+ states using transient field (TF) technique in inverse kinematics in Coulomb excitation. Comparison with previous measurements and theoretical predictions.

NUCLEAR REACTIONS C(106Pd, C'), E=230, 280, 290, 300 MeV; measured scattered C ions, Eγ, Iγ, γ(θ, H), (12C)γ-coin, level half-lives by line-shape method. 106Pd; deduced g factors, B(E2) values.

doi: 10.1103/PhysRevC.82.064301
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2009MU06      Phys.Rev. C 79, 054310 (2009)

D.Mucher, G.Gurdal, K.-H.Speidel, G.J.Kumbartzki, N.Benczer-Koller, S.J.Q.Robinson, Y.Y.Sharon, L.Zamick, A.F.Lisetskiy, R.J.Casperson, A.Heinz, B.Krieger, J.Leske, P.Maier-Komor, V.Werner, E.Williams, R.Winkler

Nuclear structure studies of 70Zn from g-factor and lifetime measurements

NUCLEAR REACTIONS 12C(70Zn, X), E=180-200 MeV; measured Eγ, Iγ, γγ-coin, (particle)γ-coin, γγ(θ), half-lives and spin precessions in a magnetic field. 70Zn; deduced levels, J, π. Comparison with large-scale shell-model calculations.

NUCLEAR MOMENTS 70Zn; measured g factors by projectile Coulomb excitation in inverse kinematics combined with transient magnetic field. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.79.054310
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2008BE14      Phys.Lett. B 664, 241 (2008)

N.Benczer-Koller, G.J.Kumbartzki, G.Gurdal, C.J.Gross, A.E.Stuchbery, B.Krieger, R.Hatarik, P.O'Malley, S.Pain, L.Segen, C.Baktash, J.Beene, D.C.Radford, C.H.Yu, N.J.Stone, J.R.Stone, C.R.Bingham, M.Danchev, R.Grzywacz, C.Mazzocchi

Measurement of g factors of excited states in radioactive beams by the transient field technique: 132Te

NUCLEAR REACTIONS C(132Te, 132Te'), E=396 MeV; measured Eγ, Iγ, (particle)γ-coin. 132Te; deduced g-factor.

doi: 10.1016/j.physletb.2008.05.048
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2007BE42      Phys.Atomic Nuclei 70, 1330 (2007)

N.Benczer-Koller, G.J.Kumbartzki, P.Boutachkov, A.Escuderos, Y.Y.Sharon, L.Zamick, E.A.Stefanova, S.J.Q.Robinson, V.Werner

Magnetic moments: Study of the interplay between single-particle and collective excitations

NUCLEAR STRUCTURE 38,40S, 36,38,40Ar, 70Ge, 92,94Zr; analyzed coulomb excitation data for g-factor measurements for mixed symmetry states. Compared results to model calculations.

doi: 10.1134/S1063778807080029
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2007BO04      Phys.Rev. C 75, 021302 (2007)

P.Boutachkov, N.Benczer-Koller, G.J.Kumbartzki, A.Escuderos, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, H.Ai, M.Chamberlain, G.Gurdal, A.Heinz, E.A.McCutchan, J.Quian, V.Werner, E.Williams, K.Aleksandrova, C.A.Copos, D.A.Kovacheva, P.Manchev

Sign of the g factor of the 4+1 state in 68Zn

NUCLEAR REACTIONS 12C(68Zn, 68Zn'), E=180, 200 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin following projectile Coulomb excitation. 68Zn deduced levels, J, π, g. Transient field technique. Comparison with model predictions.

doi: 10.1103/PhysRevC.75.021302
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2005AZ02      Nucl.Instrum.Methods Phys.Res. A538, 431 (2005)

L.S.Azhgirey, V.A.Arefiev, I.Atanasov, S.N.Basilev, Yu.P.Bushuev, V.V.Glagolev, M.K.Jones, D.A.Kirillov, P.P.Korovin, G.J.Kumbartzki, P.K.Manyakov, J.Musinsky, L.Pentchev, C.F.Perdrisat, V.Punjabi, N.M.Piskunov, I.M.Sitnik, V.M.Slepnev, I.V.Slepnev, E.Tomasi-Gustafsson

Measurement of analyzing powers for the reaction p(pol) + CH2 at pp = 1.75 - 5.3 GeV/c

NUCLEAR REACTIONS H, C(polarized p, X), E at 1.75, 3.8, 4.5, 5.3 GeV/c; measured Ay(θ).

doi: 10.1016/j.nima.2004.08.111
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2005QA01      Phys.Rev.Lett. 94, 142301 (2005)

I.A.Qattan, J.Arrington, R.E.Segel, X.Zheng, K.Aniol, O.K.Baker, R.Beams, E.J.Brash, J.Calarco, A.Camsonne, J.-P.Chen, M.E.Christy, D.Dutta, R.Ent, S.Frullani, D.Gaskell, O.Gayou, R.Gilman, C.Glashausser, K.Hafidi, J.-O.Hansen, D.W.Higinbotham, W.Hinton, R.J.Holt, G.M.Huber, H.Ibrahim, L.Jisonna, M.K.Jones, C.E.Keppel, E.Kinney, G.J.Kumbartzki, A.Lung, D.J.Margaziotis, K.McCormick, D.Meekins, R.Michaels, P.Monaghan, P.Moussiegt, L.Pentchev, C.Perdrisat, V.Punjabi, R.Ransome, J.Reinhold, B.Reitz, A.Saha, A.Sarty, E.C.Schulte, K.Slifer, P.Solvignon, V.Sulkosky, K.Wijesooriya, B.Zeidman

Precision Rosenbluth Measurement of the Proton Elastic Form Factors

NUCLEAR REACTIONS 1H(e, e), E=1.9-4.7 GeV; measured recoil proton spectra, σ(θ), σ. 1H deduced electromagnetic form factors.

doi: 10.1103/PhysRevLett.94.142301
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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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1991CH32      Phys.Rev.Lett. 67, 1982 (1991)

J.Chiba, T.Kobayashi, T.Nagae, I.Arai, N.Kato, H.Kitayama, A.Manabe, M.Tanaka, M.Tomizawa, D.Beatty, G.Edwards, C.Glashausser, G.J.Kumbartzki, R.D.Ransome, F.T.Baker

Coincidence Measurements of (p, n) Reactions at 1.5 GeV/c on C and H in the Δ Excitation Region

NUCLEAR REACTIONS C, 1H(p, n), E at 1.5 GeV/c; measured σ(θ) vs neutron momentum; deduced isobar peak location features.

doi: 10.1103/PhysRevLett.67.1982
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1983SE09      Nucl.Phys. A399, 211 (1983)

G.Seiler-Clark, D.Pelte, H.Emling, A.Balanda, H.Grein, E.Grosse, R.Kulessa, D.Schwalm, H.J.Wollersheim, M.Hass, G.J.Kumbartzki, K.-H.Speidel

Magnetic Moments in the Backbending Region of 158Dy

NUCLEAR REACTIONS 158,164Dy(208Pb, 208Pb'), E=4.7 MeV/nucleon; measured γ(θ, B), Coulomb excitation. 158,164Dy levels deduced γ. Enriched targets, transient field, thin magnetized Fe foil.

doi: 10.1016/0375-9474(83)90604-8
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1982SP02      Nucl.Phys. A378, 130 (1982)

K.-H.Speidel, P.N.Tandon, V.Mertens, W.Trolenberg, G.J.Kumbartzki, N.Ayres de Campos, M.B.Goldberg, J.Gerber, M.Toulemonde

The g-Factor of the Yrast 4+ State in 20Ne from Transient-Field Precession Measurements

NUCLEAR REACTIONS 12C(12C, α), E=32.6, 33.5 MeV; measured σ(Eγ, θ), γ(θ, B), DSA. 20Ne level deduced g, T1/2.

doi: 10.1016/0375-9474(82)90386-4
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1982ZE01      Z.Phys. A304, 269 (1982)

A.Zemel, C.Broude, E.Dafni, A.Gelberg, M.B.Goldberg, J.Gerber, G.J.Kumbartzki, K.-H.Speidel

Magnetic Moment of the 19/2+ Isomer in 135Ce

NUCLEAR REACTIONS 122Sn(16O, 3n), E=62 MeV; measured Eγ, Iγ, γ(t), recoil, γ(θ, H). 135Ce level deduced g, configuration, T1/2.

doi: 10.1007/BF01414502
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1982ZE04      Nucl.Phys. A383, 165 (1982)

A.Zemel, C.Broude, E.Dafni, A.Gelberg, M.B.Goldberg, J.Gerber, G.J.Kumbartzki, K.-H.Speidel

Magnetic Moments at Backbending and Spectroscopy of 134Ce

NUCLEAR REACTIONS 122Sn(16O, 4n), E=75, 80 MeV; measured Iγ(E), γ(t), γγ-coin, recoil, γ(θ), oriented nuclei. 134Ce deduced levels, J, π, δ, T1/2, g. Fe, Gd hosts.

doi: 10.1016/0375-9474(82)90081-1
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1981SP04      Phys.Lett. 102B, 6 (1981)

K.-H.Speidel, G.J.Kumbartzki, W.Knauer, M.Knopp, V.Mertens, P.N.Tandon, J.Gerber, R.M.Freeman

The g-Factor of the First Excited 2+ State in 26Mg from Transient Field Precession Measurements

NUCLEAR REACTIONS 24Mg(α, α'), E=7.08 MeV; 26Mg(α, α'), E=8.01 MeV; measured γ(θ, H) in Fe, αγ(θ); deduced K-shell ion polarization effects. 26Mg level deduced g.

doi: 10.1016/0370-2693(81)90200-8
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1980GO14      Phys.Lett. B97, 351 (1980)

M.B.Goldberg, C.Broude, E.Dafni, A.Gelberg, J.Gerber, G.J.Kumbartzki, Y.Niv, K.H.Speidel, A.Zemel

Two Neutron-Dominated 10+ States in 134Ce

RADIOACTIVITY 134Ce [from 122Sn(16O, 4n), E=75 MeV]; measured γγ-coin, Eγ, Iγ(θ), γ(θ, H, t); deduced levels, T1/2, g, J, π, γ-branching, γ-multipolarity, E2 transition strength, configuration.

doi: 10.1016/0370-2693(80)90617-6
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1980SP02      Phys.Lett. 92B, 289 (1980)

K.-H.Speidel, G.J.Kumbartzki, W.Knauer, V.Mertens, P.N.Tandon, N.Ayres de Campos, J.Gerber, M.B.Goldberg

The g-Factor of the First Excited 4+ State in Backbending 20Ne

NUCLEAR REACTIONS 12C(12C, α), E=32.6 MeV; measured γγ(θ, H) in Fe, γα-coin. 20Ne level deduced g.

doi: 10.1016/0370-2693(80)90266-X
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1980SP03      Nucl.Phys. A344, 176 (1980)

K.-H.Speidel, G.J.Kumbartzki, W.Kauner, R.Kuhnen, G.Kraft, J.Gerber, M.B.Goldberg, G.Goldring, A.Zemel

Hyperfine Interaction and g-Factor Measurements in Er Isotopes

NUCLEAR REACTIONS 28Si(136Xe, xn), E=630 MeV; measured σ(θ, γ) vs product flight time; deduced hyperfine field, correlation time. 159Er level deduced g. Plunger technique, H2 gas pressure.

doi: 10.1016/0375-9474(80)90437-6
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1979KU20      Hyperfine Interactions 7, 253 (1979)

G.J.Kumbartzki, K.Hagemeyer, W.Knauer, G.Krosing, R.Kuhnen, V.Mertens, K.-H.Speidel, J.Gerber, W.Nagel

The 12C(21+) State as Probe for Transient Magnetic Fields in Polarized Iron

NUCLEAR REACTIONS 12C(p, p'γ), E=7.3 MeV; 12C(α, α'γ), E=17.9, 24.9 MeV; measured pγ-coin, αγ-coin, Iγ(θ, H) in magnetized Fe; deduced K-shell polarization, effective charge.

doi: 10.1007/BF01021508
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1975SP03      Phys.Lett. 57B, 143 (1975)

K.-H.Speidel, M.B.Goldberg, K.Hagemeyer, G.J.Kumbartzki, G.Goldring, Z.Shkedi, M.Schramm, G.Kraft, H.A.Doubt

The Magnetic Moment of the First-Excited 2+ State in 18O

NUCLEAR REACTIONS 4He(18O, αγ), E=44 MeV; measured γγ(θ, H). 18O level deduced g.

doi: 10.1016/0370-2693(75)90009-X
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1974DO01      Nucl.Phys. A221, 13 (1974)

H.A.Doubt, J.B.Fechner, K.Hagemeyer, G.J.Kumbartzki, K.-H.Speidel

Magnetic Moment Measurements on Hg Nuclei

RADIOACTIVITY 199Au; measured βce(t), ICC-ratios. 199Hg deduced T1/2, E2/M1 mixing ratio.

NUCLEAR REACTIONS 198,199,200,202,204Hg(16O, 16O'γ), E=36 MeV; measured σ(θ(γ), pressure) for recoil into He, vacuum. 198,200,202,204Hg levels deduced g. Enriched targets.

doi: 10.1016/0375-9474(74)90095-5
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1973BO24      Nucl.Phys. A205, 239 (1973)

P.D.Bond, G.J.Kumbartzki

Coulomb Excitation of 85Rb and 87Rb

NUCLEAR REACTIONS 85,87Rb(Cl, Cl'γ), E=52-64 MeV; measured σ(E;Eγ, θ(γ)), γγ-coin. 85,87Rb deduced levels, B(E2), T1/2, J, π. Ge(Li) detector; natural, enriched targets.

doi: 10.1016/0375-9474(73)90207-8
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1973SP07      Nucl.Phys. A215, 446 (1973)

H.Spehl, S.G.Steadman, A.Weckherlin, H.A.Doubt, K.Hagemeyer, G.J.Kumbartzki, K.-H.Speidel

Search for a Quadrupole Component in the Hyperfine Interaction on Recoil into Vacuum

NUCLEAR REACTIONS 146,148,150Nd(16O, 16O'γ), E=40 MeV; measured σ(θ(γ)) for recoil into vacuum. Deduced type of ionic field.

doi: 10.1016/0375-9474(73)90478-8
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1972BE50      Nucl.Phys. A192, 524 (1972)

M.C.Bertin, G.J.Kumbartzki, R.G.Hirko

Transition Rates between (1f7/2)2 States in 42Sc

NUCLEAR REACTIONS 39K(α, nγ), E=15 MeV; measured recoil distance. 42Sc levels deduced T1/2. Natural target.

doi: 10.1016/0375-9474(72)90089-9
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1971KU02      Nucl.Phys. A160, 237 (1971)

G.J.Kumbartzki, U.Kim, C.K.Kwan

Photospallation of Medium-Heavy Elements with Bremsstrahlung of Maximum Energies between 0.8 and 2.1 GeV

NUCLEAR REACTIONS 27Al(γ, 2pn)24Na, E=0.8-2.1 GeV;27Al, 51V, 55Mn, 50Fe, 59Co, 75As(γ, spallation), E=1.5 GeV;51V(γ, spallation), E=1.0-2.1 GeV; measured σ per equivalent quanta.

doi: 10.1016/0375-9474(71)90128-X
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