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NSR database version of April 11, 2024.

Search: Author = L.Zamick

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2024SH06      Nucl.Phys. A1044, 122842 (2024)

S.Shukla, P.C.Srivastava, K.Nomura, L.Zamick

Systematic shell-model study for structure and isomeric states in 200-210Po isotopes

NUCLEAR STRUCTURE 200,202,204,206,208,210Po; calculated energy levels, J, π with systematic large-scale shell-model using KHH7B interaction. Comparison with experimental data.

doi: 10.1016/j.nuclphysa.2024.122842
Citations: PlumX Metrics


2021MA31      Rom.J.Phys. 66, 306 (2021)

M.Ma, P.C.Srivastava, L.Zamick

The Q.Q Interaction and Variations of Single Particle Energies

NUCLEAR STRUCTURE 20Ne; calculated single particle energies, B(E2), energy levels, J, π using nuclear shell model; deduced the rotational spectrum of the Elliott model.


2021RO17      Int.J.Mod.Phys. E30, 2150047 (2021)

S.J.Q.Robinson, C.Fan, M.Harper, L.Zamick

On the vibrational model of 92Pd and comparison with 48Cr

NUCLEAR STRUCTURE 48Cr; analyzed available data; deduced yrast band are almost equally spaced suggesting a vibrational band.

doi: 10.1142/S0218301321500476
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2021SR01      Phys.Scr. 96, 065307 (2021)

P.C.Srivastava, L.Zamick

Minimal theory of isomerism- Q.Q and other interactions

NUCLEAR STRUCTURE 44Ti, 52Fe, 48Cr, 96Cd, 92Pd, 88Ru, 43Sc, 53Fe, 53Co, 97Cd, 93,95Ag, 44Sc, 52Mn, 48V, 94,96Ag; calculated energy levels, spin gaps, T1/2, B(E2). Comparison with available data.

doi: 10.1088/1402-4896/abf306
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2020KI04      Int.J.Mod.Phys. E29, 2050014 (2020)

A.Kingan, M.Ma, L.Zamick

Distribution of magnetic dipole strength-binning

NUCLEAR STRUCTURE 44,46Ti, 48Cr; analyzed available data; calculated B(M1) strength as a function of excitation of energy.

doi: 10.1142/S0218301320500147
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2019WO02      Int.J.Mod.Phys. E28, 1950062 (2019)

L.Wolfe, L.Zamick

Cascade calculation with schematic interactions

NUCLEAR STRUCTURE Z=1-100; calculated cascades with schematic interactions.

doi: 10.1142/S0218301319500629
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2019WO03      Nucl.Phys. A992, 121617 (2019)

L.Wolfe, L.Zamick

Calculated inter-band B(E2)'s in the p-f shell

doi: 10.1016/j.nuclphysa.2019.121617
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2019ZA03      Int.J.Mod.Phys. E28, 1950002 (2019)

L.Zamick, S.Yeager, Y.Y.Sharon, S.J.Q.Robinson

Lawson method for obtaining wave functions and g factors of Ar isotopes

NUCLEAR STRUCTURE 38,40,44,46Ar; analyzed available data; deduced wave functions and magnetic g factors of excited states of Ar isotopes.

doi: 10.1142/S0218301319500022
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2018KI06      Rom.J.Phys. 63, 301 (2018)

A.Kingan, M.Quinonez, S.Yu, L.Zamick

Selection Rules for 48Cr

NUCLEAR STRUCTURE 48Cr; calculated B(E2), B(M1), energy levels, J, π using shell model code NUSHELLX . Comparison with available data.


2018KI07      Phys.Rev. C 98, 014301 (2018)

A.Kingan, L.Zamick

Odd-J states of isospin zero and one for 4-nucleon systems: Near-degeneracies

NUCLEAR STRUCTURE 44Ti, 52Fe, 96Cd; calculated levels, J, π, odd-spin states, B(M1) values between odd spin, T=0, 1 states using single j and full fp shell calculations using MBZE interaction. Authors noted that none of the odd spin states discussed exist in the ENSDF and XUNDL databases at NNDC, BNL.

doi: 10.1103/PhysRevC.98.014301
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2018KI20      Int.J.Mod.Phys. E27, 1850090 (2018)

A.Kingan, M.Quinonez, X.Yu, L.Zamick

The spin and orbital contributions to magnetic dipole transitions

NUCLEAR STRUCTURE 44,46Ti, 48Cr; analyzed available data; deduced J, π, B(M1).

doi: 10.1142/S0218301318500908
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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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2017KI13      Phys.Rev. C 96, 064302 (2017)

A.Kingan, K.Neergaard, L.Zamick

Symmetry energies for A=24 and 48 and the USD and KB3 shell model Hamiltonians

NUCLEAR STRUCTURE 24Mg, 24Ne, 24O, 48Cr, 48Ti, 48Ca; calculated ground-state energies from the sd shell USD (A=24) and the pf shell KB3 (A=48) Hamiltonians with components of the two-nucleon interactions successively turned off.

doi: 10.1103/PhysRevC.96.064302
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2017PE05      Int.J.Mod.Phys. E26, 1740021 (2017)

W.Pereira, R.Garcia, L.Zamick, A.Escuderos, K.NeergArd

Partial conservation law in a schematic single j shell model

doi: 10.1142/S0218301317400213
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2017QU07      Int.J.Mod.Phys. E26, 1750060 (2017)

M.Quinonez, A.Kingan, L.Zamick

Manifestations of isospin in nearest neighbor spacing distributions for the f-p model space

NUCLEAR STRUCTURE 44Ti; calculated nearest neighbor spacings using GXPF1A(pn) interaction. Comparison with available data.

doi: 10.1142/S0218301317500604
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2017RO23      Int.J.Mod.Phys. E26, 1750053 (2017)

S.Robinson, L.Zamick

Single particle energies and nuclear g factors

NUCLEAR STRUCTURE 101,102,103,104,105,106,107,108,109,110,111,112,113Sn; calculated 2+ states, g-factors.

doi: 10.1142/S0218301317500537
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2017ZA08      Rom.J.Phys. 62, 302 (2017)

L.Zamick, A.Escuderos

Degeneracies with the QQ Interaction in a Single-j Shell


2016YU02      Nucl.Phys. A949, 1 (2016)

X.Yu, L.Zamick

Surface delta interaction in the g7/2 - d5/2 model space

NUCLEAR STRUCTURE 112,114,116,118,120,122,124,126Sn; calculated 2+, 4+, 6+ state energies, g-factors using known data and assuming 2 neutron particle (or 2 n hole) states and cancellation of the spin parts. 107,109,111,113,125,127Sn; calculated magnetic g-factors using single-energy splittigs between teo orbits.

doi: 10.1016/j.nuclphysa.2016.02.020
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2016ZA01      Phys.Rev. C 93, 034327 (2016)

L.Zamick

Gaps in nuclear spectra as traces of seniority changes in systems of both neutrons and protons

NUCLEAR STRUCTURE 44Sc, 52Mn, 96Ag, 44Ti, 52Fe, 96Cd; calculated levels in the middle part of the excitation energy, J, π using single j shell approach and seniority arguments; discussed gaps in energy spectra. Comparison with experimental data.

doi: 10.1103/PhysRevC.93.034327
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2015GA30      Phys.Rev. C 92, 034322 (2015)

R.Garcia, L.Zamick

Gamow-Teller transitions and magnetic moments using various interactions

NUCLEAR STRUCTURE 43Sc, 43Ca; 44Sc, 44Ca; 45Sc, 45Ca; 45Ca, 45Sc; 45Ti, 45Sc; 46Ti, 46V; calculated B(GT), logft, magnetic dipole moments single j-shell calculation using MBZE interaction. Comparison with experimental values.

doi: 10.1103/PhysRevC.92.034322
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2015HA03      Phys.Rev. C 91, 014304 (2015)

M.Harper, L.Zamick

J = 0, T = 1 pairing-interaction selection rules

NUCLEAR STRUCTURE 43,45Sc, 44Ti; calculated levels, J, π, wave functions using J=0, T=1 pairing, and QQ interactions. 43,45Sc; calculated Gamow-Teller matrix elements. 44,46Ti; calculated B(M1) values for pairing and QQ interactions.

doi: 10.1103/PhysRevC.91.014304
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2015HA15      Phys.Rev. C 91, 054310 (2015)

M.Harper, L.Zamick

Scissors mode from a different perspective

NUCLEAR STRUCTURE 44,46Ti; calculated B(M1) for transitions from 1+ scissors mode excitations to excited 0+ and 2+ levels using four interactions J=0 (T=1) pairing, Q.Q, MBZE, and Jmax(T=0) pairing; deduced sums and sums of sums; strong B(M1) diagrams.

doi: 10.1103/PhysRevC.91.054310
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2015ZA02      Phys.Rev. C 91, 034331 (2015)

L.Zamick, M.Harper

Wave functions of the Q . Q interaction in terms of unitary 9-J coefficients

doi: 10.1103/PhysRevC.91.034331
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2015ZA07      Phys.Rev. C 91, 064321 (2015)

L.Zamick, Y.Y.Sharon, S.J.Q.Robinson, M.Harper

Consequences of omitting spin-orbit partner configurations for B(E2) values and quadrupole moments in nuclei

NUCLEAR STRUCTURE 44,46,48Ti, 48,50Cr, 52Fe; calculated B(E2) and quadrupole moments for first 2+ and 4+ states using shell model with FPD6 and GXPF1 interactions, with full fp space, and truncated fp space by omitting the f5/2 orbital; deduced effects of omitting a spin-orbit partner in large-scale shell-model calculations.

doi: 10.1103/PhysRevC.91.064321
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2014HE17      Phys.Rev. C 90, 027302 (2014)

D.Hertz-Kintish, L.Zamick, B.Kleszyk

Asymptotics of the 3j and 9j coefficients

doi: 10.1103/PhysRevC.90.027302
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2014HE20      Phys.Rev. C 90, 034307 (2014)

D.Hertz-Kintish, L.Zamick, S.J.Q.Robinson

B(E2, 4 → 2)/B(E2, 2 → 0) ratio in even-even nuclei: Apparent anomalous behavior of the chromium isotopes

NUCLEAR STRUCTURE 44,46,48Ti, 48,50Cr, 52Fe; analyzed B(E2)(4+ to 2+)/B(E2)(2+ to 0+) and Q(4+)/Q(2+) ratios for lowest lying states using experimental data, and theoretical values from rotational, vibrational, and shell model calculations.

doi: 10.1103/PhysRevC.90.034307
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2014KL02      Phys.Rev. C 89, 044322 (2014)

B.Kleszyk, L.Zamick

Analytical and numerical calculations for the asymptotic behavior of unitary 9j coefficients

doi: 10.1103/PhysRevC.89.044322
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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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Data from this article have been entered in the XUNDL database. For more information, click here.


2014RO02      Phys.Rev. C 89, 014316 (2014)

S.J.Q.Robinson, T.Hoang, L.Zamick, A.Escuderos, Y.Y.Sharon

Shell model calculations of B(E2) values, static quadrupole moments, and g factors for a number of N=Z nuclei

NUCLEAR STRUCTURE 44Ti, 48Cr, 52Fe, 88Ru, 92Pd, 96Cd; calculated levels, J, π, B(E2), static quadrupole moments, g factors. Large-scale shell model calculations using GXFP1, FPD6, JUN45, and JJ4B interactions. Comparisons with predictions of rotational and vibrational models, and with available experimental data. Oblate structure of 88Ru.

doi: 10.1103/PhysRevC.89.014316
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2014ZA10      Phys.Rev. C 90, 027305 (2014)

L.Zamick, B.Kleszyk, Y.Y.Sharon, S.J.Q.Robinson

Spin and orbital g factors with a surface δ interaction

NUCLEAR STRUCTURE 86Kr; calculated orbital and spin g factors of the first 2+ and 4+ states by surface delta interaction (SDI) approach, and large-scale shell model wave functions for 2+ and 4+ states. Dominance of the orbital contribution in total g factor. Comparison with experimental data.

NUCLEAR MOMENTS 86Kr; calculated g factors of the first 2+ and 4+ states. Surface delta interaction (SDI), and large-scale shell model calculations.

doi: 10.1103/PhysRevC.90.027305
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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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Data from this article have been entered in the XUNDL database. For more information, click here.


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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2013ZA04      Phys.Rev. C 87, 044302 (2013)

L.Zamick, A.Escuderos

Odd-j pairing in nuclei

NUCLEAR STRUCTURE 96Cd; calculated levels, J, π of yrast even spins, wave functions for g.s., 2+ and 8+ states. Shell-model calculations with J=Jmax pairing interactions. Eigenstates of E(9) and normalized U9-j coefficients.

doi: 10.1103/PhysRevC.87.044302
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2013ZA08      Phys.Rev. C 87, 067302 (2013)

L.Zamick, A.Escuderos, S.J.Q.Robinson, Y.Y.Sharon, M.W.Kirson

Isobaric analog states in the f7/2 and g9/2 shells

NUCLEAR STRUCTURE 44,46Sc, 44,46Ca, 52Mn, 52Cr, 60Cu, 60Ni, 94Rh, 94Ru, 96Ag, 96Pd; calculated Coulomb energy estimates for pairs of nuclei using various mass formulas. 44,46Sc, 52Mn, 60Cu, 94Rh, 96Ag; calculated energies of isobaric analog states (IAS) with T=2 and 3 using binding energy formulas and Coulomb energies, and shell-model. Comparison with experimental data.

doi: 10.1103/PhysRevC.87.067302
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2013ZA10      Phys.Rev. C 88, 014326 (2013)

L.Zamick, A.Escuderos

Large-j limit for certain 9-j symbols: Power law behavior

doi: 10.1103/PhysRevC.88.014326
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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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Data from this article have been entered in the XUNDL database. For more information, click here.


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


2012ME08      Phys.Rev. C 85, 044318 (2012)

A.Z.Mekjian, L.Zamick

Nuclear equation of state and incompressibility in a model with correlations from giant monopole vibrations

doi: 10.1103/PhysRevC.85.044318
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2012ME09      Phys.Rev. C 85, 057303 (2012)

A.Z.Mekjian, L.Zamick

Symmetry energy and neutron-proton radii studied with a Wigner-Heisenberg monopole-monopole interaction

doi: 10.1103/PhysRevC.85.057303
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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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Data from this article have been entered in the XUNDL database. For more information, click here.


2012ZA03      Nucl.Phys. A889, 8 (2012)

L.Zamick, A.Escuderos

Single j-shell studies of cross-conjugate nuclei and isomerism: (2j-1) rule

NUCLEAR STRUCTURE 44Sc, 44Ti, 52Fe, 52Mn; calculated yrast spectra. 96Ag, 96Cd; calculated levels, J using j-shell model space with different interactions, considered isomeric states. Compared to data.

doi: 10.1016/j.nuclphysa.2012.06.003
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2012ZA04      J.Phys.:Conf.Ser. 337, 012036 (2012)

L.Zamick, Y.Y.Sharon, S.J.Q.Robinson

Anatomy of an Inversion - Argon Isotopes

NUCLEAR STRUCTURE 36,38,40,42,44,46Ar; calculated 2+ state energy, g factor. 41,43,45,47,49K; calculated (3/2)+-(1/2)+ proton splitting. 32S, 36Ar; calculated g factor. 46Ar; calculated B(E2). Calculations using WBT (Warburton and Brown) and SPDF-U (Nowacki and Poves and Nummela et al); compared with available data. Some other data and calculations also referred to.

doi: 10.1088/1742-6596/337/1/012036
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2012ZA05      Phys.Rev. C 86, 047306 (2012)

L.Zamick, A.Escuderos

Symmetries in the g9/2 shell

NUCLEAR STRUCTURE 96Cd; calculated levels, J, π, wave functions, single j-shell calculation, symmetries. Two-body interaction matrix elements with isospin T=0.

doi: 10.1103/PhysRevC.86.047306
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2011RO05      Phys.Rev. C 83, 027302 (2011)

S.J.Q.Robinson, L.Zamick, Y.Y.Sharon

Comparison of shell model results for some properties of even-even Ge isotopes

NUCLEAR STRUCTURE 70,72,74,76Ge; calculated levels, J, π, B(E2), static quadrupole moments using shell-model and JUN45 and JJ4B interactions in the fpg model space for protons and neutrons. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.027302
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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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Data from this article have been entered in the XUNDL database. For more information, click here.


2011ZA04      Phys.Rev. C 84, 017302 (2011)

L.Zamick

Most negative and most positive expectation values of the spin operator

NUCLEAR STRUCTURE 9Li, 9C, 21F, 21Ne, 21Ne, 21Na, 23Na, 23Mg, 25Mg, 25Al; analyzed values of the spin operator obtained from mirror nuclei, magnetic moments. Comparison with single-particle values. Nilsson model.

doi: 10.1103/PhysRevC.84.017302
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2011ZA06      Phys.Rev. C 84, 044325 (2011)

L.Zamick, S.J.Q.Robinson

Zeros of 6-j symbols: Atoms, nuclei, and bosons

doi: 10.1103/PhysRevC.84.044325
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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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2010ZA12      Phys.Rev. C 82, 057304 (2010)

L.Zamick

Relation between a three-parameter formula for isotope shifts and staggering parameters

NUCLEAR STRUCTURE 38,40,42,44Ar, 39,41,43,45K, 40,42,44,46Ca, 42,44,46,48Ti; calculated staggering parameters for isotope shifts using three-parameter formula with fixed coefficients.

doi: 10.1103/PhysRevC.82.057304
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2010ZA14      Phys.Rev. C 82, 067303 (2010)

L.Zamick, Y.Y.Sharon, S.J.Q.Robinson

Ratio of isoscalar to isovector core polarization for magnetic moments

NUCLEAR MOMENTS 2H, 6Li, 10B, 14N, 18F, 22Na, 26Al, 38K, 46V, 58Cu; calculated isoscalar g factors using large scale and single-j shell-model calculations.

doi: 10.1103/PhysRevC.82.067303
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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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2009RO08      Phys.Rev. C 79, 054322 (2009)

S.J.Q.Robinson, Y.Y.Sharon, L.Zamick

Nuclear structure of the even-even argon isotopes with a focus on magnetic moments

NUCLEAR STRUCTURE 38,40,42,44,46Ar; calculated levels, J, π, g factors, B(E2), configurations using WBT and SDPF-U interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.79.054322
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2009YE04      Europhys.Lett. 88, 52001 (2009)

S.Yeager, S.J.Q.Robinson, L.Zamick, Y.Y.Sharon

Isoscalar g-factors of odd-odd N = Z nuclei

NUCLEAR STRUCTURE 2H, 6Li, 10B, 14N, 18F, 23Na, 26Al, 38K, 46V, 58Cu; calculated g factors with large-scale shell model.

COMPILATION 2H, 6Li, 10B, 14N, 18F, 23Na, 26Al, 38K, 46V, 58Cu; compiled experimental nuclear structure data.

doi: 10.1209/0295-5075/88/52001
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2008SP01      Phys.Lett. B 659, 101 (2008)

K.-H.Speidel, S.Schielke, J.Leske, N.Pietralla, T.Ahn, A.Costin, M.v.Schmid, O.Zell, J.Gerber, P.Maier-Komor, S.J.Q.Robinson, A.Escuderos, Y.Y.Sharon, L.Zamick

First g-factor measurements on semi-magic 36S and their implications for the rigidity of the N = 20 shell closure

NUCLEAR REACTIONS 12C(36S, 36S'), (36S, 40Ar), E=70 MeV; measured Eγ, Iγ, T1/2 using transient field technique and DSA; 36S, 40Ar; deduced B(E2), g-factor. Comparison with shell model and previous results.

doi: 10.1016/j.physletb.2007.11.049
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2008SP04      Phys.Rev. C 78, 017304 (2008)

K.-H.Speidel, S.Schielke, J.Leske, N.Pietralla, T.Ahn, A.Costin, O.Zell, J.Gerber, P.Maier-Komor, S.J.Q.Robinson, A.Escuderos, Y.Y.Sharon, L.Zamick

New shell model calculations for 40Ar based on recent g-factor and lifetime measurements

NUCLEAR REACTIONS 12C(36S, 40Ar), E=70 MeV; measured Eγ, Iγ, particle spectra, γγ-coin, (particle)γ-coin, g-factors, B(E2). 40Ar; measured half-lives of 2+ and 4+ states using Doppler-shift attenuation method; deduced levels, J, π.

doi: 10.1103/PhysRevC.78.017304
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2008ZA10      Phys.Rev. C 78, 044327 (2008)

L.Zamick, P.Van Isacker

Partial dynamical symmetries in the j=9/2 shell: Progress and puzzles

doi: 10.1103/PhysRevC.78.044327
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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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2007BO41      Phys.Rev. C 76, 054311 (2007)

P.Boutachkov, S.J.Q.Robinson, A.Escuderos, G.Kumbartzki, N.Benczer-Koller, E.Stefanova, Y.Y.Sharon, L.Zamick, E.A.McCutchan, V.Werner, H.Ai, A.B.Garnsworthy, G.Gurdal, A.Heinz, J.Qian, N.J.Thompson, E.Williams, R.Winkler

Measurement of the g factor of the 4+1 state in 70Ge

NUCLEAR REACTIONS C(70Ge, X)70Ge, E=190, 225 MeV; measured Eγ, Iγ; deduced levels, J, π, g-factors for 2+, 3+ and 4+ states, B(E2), half-lives. Comparison with calculated and measured g-factors of 64,66,68Zn, 74,76,78,80,82Se.

doi: 10.1103/PhysRevC.76.054311
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2007ZA02      Phys.Rev. C 75, 024307 (2007)

L.Zamick

Relations for four nucleons in a single j shell

doi: 10.1103/PhysRevC.75.024307
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2007ZA11      Phys.Rev. C 75, 064305 (2007)

L.Zamick

Relations between coefficients of fractional parentage

doi: 10.1103/PhysRevC.75.064305
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2006ES01      Phys.Rev. C 73, 027301 (2006)

A.Escuderos, S.J.Q.Robinson, L.Zamick

Full major shell calculation for states that were degenerate in a single j-shell calculation

NUCLEAR STRUCTURE 43Sc, 44,45Ti, 46,47V; calculated levels, J, π, configurations, energy splitting. Full shell-model calculation.

doi: 10.1103/PhysRevC.73.027301
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2006ES02      Phys.Rev. C 73, 044302 (2006)

A.Escuderos, L.Zamick

Seniority conservation and seniority violation in the g9/2 shell

NUCLEAR STRUCTURE 82,83,85,87Zr, 93Tc, 95Rh, 97Ag, 98Cd; calculated levels, J, π, seniority mixing features. Three interactions considered.

doi: 10.1103/PhysRevC.73.044302
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2006LE31      Phys.Rev. C 74, 024315 (2006)

J.Leske, K.-H.Speidel, S.Schielke, J.Gerber, P.Maier-Komor, S.J.Q.Robinson, A.Escuderos, Y.Y.Sharon, L.Zamick

Low-level structure of 70Ge from lifetime and g-factor measurements following α transfer to a 66Zn ion beam

NUCLEAR REACTIONS 12C(66Zn, 2α), (66Zn, 66Zn'), E=180 MeV; measured Eγ, Iγ(θ, H, t), αγ-coin, DSA. 70Ge deduced levels, J, π, T1/2, B(E2), g factor. Comparison with previous results, model predictions.

doi: 10.1103/PhysRevC.74.024315
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2006NE06      Phys.Rev.Lett. 97, 062502 (2006)

A.Negret, T.Adachi, B.R.Barrett, C.Baumer, A.M.van den Berg, G.P.A.Berg, P.von Brentano, D.Frekers, D.De Frenne, H.Fujita, K.Fujita, Y.Fujita, E.-W.Grewe, P.Haefner, M.N.Harakeh, K.Hatanaka, K.Heyde, M.Hunyadi, E.Jacobs, Y.Kalmykov, A.Korff, K.Nakanishi, P.Navratil, P.von Neumann-Cosel, L.Popescu, S.Rakers, A.Richter, N.Ryezayeva, Y.Sakemi, A.Shevchenko, Y.Shimbara, Y.Shimizu, Y.Tameshige, A.Tamii, M.Uchida, J.Vary, H.J.Wortche, M.Yosoi, L.Zamick

Gamow-Teller Strengths in the A = 14 Multiplet: A Challenge to the Shell Model

NUCLEAR REACTIONS 14N(d, 2p), E=175 MeV; 14N(3He, t), E=420 MeV; measured excitation energy spectra, σ(E, θ); deduced Gamow-Teller strength distributions. Comparison with no-core shell model predictions.

doi: 10.1103/PhysRevLett.97.062502
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2006RO13      Phys.Rev. C 73, 037306 (2006)

S.J.Q.Robinson, A.Escuderos, L.Zamick, P.von Neumann-Cosel, A.Richter, R.W.Fearick

Shell-model test of the rotational-model relation between static quadrupole moments Q(2+1), B(E2)'s, and orbital M1 transitions

NUCLEAR STRUCTURE 44,46,48Ti, 48,50Cr; calculated quadrupole moments, B(E2), B(M1). Comparison of shell model and collective model results.

doi: 10.1103/PhysRevC.73.037306
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2006SP01      Phys.Lett. B 632, 207 (2006)

K.-H.Speidel, S.Schielke, J.Leske, J.Gerber, P.Maier-Komor, S.J.Q.Robinson, Y.Y.Sharon, L.Zamick

Experimental g factors and B(E2) values in Ar isotopes: Crossing the N = 20 semi-magic divide

NUCLEAR REACTIONS 12C(32S, 8Be), (34S, 8Be), (32S, 32S'), E=65-67 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin, DSA. 36,38Ar, 32S levels deduced g factors, T1/2, B(E2). Transient field technique.

doi: 10.1016/j.physletb.2005.10.052
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2006SP02      Phys.Lett. B 633, 219 (2006)

K.-H.Speidel, J.Leske, S.Schielke, S.C.Bedi, O.Zell, P.Maier-Komor, S.J.Q.Robinson, Y.Y.Sharon, L.Zamick

Low-level structure of 52Ti based on g factor and lifetime measurements

NUCLEAR REACTIONS 12C(48Ca, 8Be), E=100 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin. 52Ti deduced level, J, π, g factor, B(E2), T1/2. Transient field technique, comparison with shell model calculations.

doi: 10.1016/j.physletb.2005.11.089
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2006ZA08      Int.J.Mod.Phys. E15, 1681 (2006)

L.Zamick, A.Escuderos

Symmetries and structure in the fp shell and g9/2 shell

NUCLEAR STRUCTURE 43Sc, 43,44Ti, 46V, 50Cr; calculated levels, J, wavefunctions, symmetry features.

doi: 10.1142/S021830130600540X
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2005ES11      Phys.Rev. C 72, 054301 (2005)

A.Escuderos, B.F.Bayman, L.Zamick, S.J.Q.Robinson

Degeneracies when only T = 1 two-body interactions are present

NUCLEAR STRUCTURE 43Sc, 44,45Ti, 46,47V; calculated levels, J, π, configurations; deduced explanation for degeneracies.

doi: 10.1103/PhysRevC.72.054301
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2005LE19      Phys.Rev. C 71, 044316 (2005)

J.Leske, K.-H.Speidel, S.Schielke, O.Kenn, J.Gerber, P.Maier-Komor, S.J.Q.Robinson, A.Escuderos, Y.Y.Sharon, L.Zamick

Nuclear structure of the first 2+ state in radioactive 68Ge based on g factor and lifetime measurements

NUCLEAR REACTIONS 12C(64Zn, 2α), E=180 MeV; measured Eγ, Iγ(θ, H, t), αα-, αγ-coin. 68Ge deduced level energies, B(E2), g factor. Transient field technique.

doi: 10.1103/PhysRevC.71.044316
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2005ME17      Phys.Lett. B 621, 239 (2005)

A.Z.Mekjian, S.J.Lee, L.Zamick

Nuclear incompressibility at finite temperature and entropy

doi: 10.1016/j.physletb.2005.06.066
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2005ME22      Phys.Rev. C 72, 044305 (2005)

A.Z.Mekjian, S.J.Lee, L.Zamick

Nuclear incompressibility in asymmetric systems at finite temperature and entropy

doi: 10.1103/PhysRevC.72.044305
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2005RO33      Phys.Rev. C 72, 034314 (2005)

S.J.Q.Robinson, A.Escuderos, L.Zamick

Unfolding the effects of the T=0 and T=1 parts of the two-body interaction on nuclear collectivity in the f-p shell

NUCLEAR STRUCTURE 44,46,48Ti, 48,50Cr, 46V; calculated levels, J, π, B(E2); deduced role of T=0 two-body matrix elements. Comparisons with data.

doi: 10.1103/PhysRevC.72.034314
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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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2005ZA01      Phys.Rev. C 71, 014315 (2005)

L.Zamick, A.Escuderos

Companion problems in quasispin and isospin

doi: 10.1103/PhysRevC.71.014315
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2005ZA03      Ann.Phys.(New York) 317, 148 (2005)

L.Zamick, M.S.Fayache, Y.Y.Sharon

The origin of the spin-orbit splitting in some light nuclei using a modified interaction

NUCLEAR STRUCTURE A=5; A=15; A=17; calculated spin-orbit splitting; dependence on core excitation, nucleon-nucleon interaction.

doi: 10.1016/j.aop.2004.11.005
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2005ZA04      Phys.Rev. C 71, 034317 (2005)

L.Zamick, A.Escuderos, S.J.Lee, A.Z.Mekjian, E.Moya de Guerra, A.A.Raduta, P.Sarriguren

Expressions for the number of J=0 pairs in even-even Ti isotopes

NUCLEAR STRUCTURE 44,46,48Ti; calculated number of nucleon pairs vs angular momentum, effect of nucleon-nucleon interaction.

doi: 10.1103/PhysRevC.71.034317
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2005ZA06      Phys.Rev. C 71, 054308 (2005)

L.Zamick, A.Escuderos

Alternate derivation of Ginocchio-Haxton relation [2j + 3/6]

doi: 10.1103/PhysRevC.71.054308
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2005ZA10      J.Korean Phys.Soc. 47, 18 (2005)

L.Zamick, A.Z.Mekjian, S.J.Lee

Interrelationship of Isospin and Angular Momentum

NUCLEAR STRUCTURE 44,46,48Ti; calculated wave functions; deduced relationships between isospin and angular momentum.


2005ZA12      Phys.Rev. C 72, 044317 (2005)

L.Zamick, A.Escuderos

Isospin relations for four nucleons in a single j shell

doi: 10.1103/PhysRevC.72.044317
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2004RO40      Phys.Rev. C 70, 057301 (2004)

S.J.Q.Robinson, L.Zamick

Isospin constraints on angular momentum truncated wave functions

NUCLEAR STRUCTURE 44,46,48Ti; calculated wave functions, B(M1), isospin constraints.

doi: 10.1103/PhysRevC.70.057301
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2003AR07      Nucl.Phys. A720, 71 (2003)

S.Aroua, P.Navratil, L.Zamick, M.S.Fayache, B.R.Barrett, J.P.Vary, K.Heyde

Allowed Gamow-Teller excitations from the ground state of 14N

NUCLEAR REACTIONS 14N(d, 2p), E not given; calculated Gamow-Teller transition strengths to ground and excited states, role of two-particle spin-orbit and tensor forces.

NUCLEAR STRUCTURE 14C, 14N; calculated levels, J, π. Shell model, comparison with data.

doi: 10.1016/S0375-9474(03)00746-2
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2003AR26      Nucl.Phys. A728, 96 (2003)

S.Aroua, L.Zamick, Y.Y.Sharon, E.Moya de Guerra, M.S.Fayache, P.Sarriguren, A.A.Raduta

Non-scissors-mode behaviour of isovector magnetic dipole orbital transitions involving isospin transfer

NUCLEAR STRUCTURE 8,10Be, 20,22Ne; calculated summed isovector orbital B(M1); deduced non-scissors mode behavior.

doi: 10.1016/j.nuclphysa.2003.08.023
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2003MO30      Nucl.Phys. A727, 3 (2003)

E.Moya de Guerra, A.A.Raduta, L.Zamick, P.Sarriguren

Charge exchange operators sum rules and proton-neutron T = 0 and T = 1 pairing interactions

NUCLEAR STRUCTURE 44Ti; calculated Gamow-Teller strength distribution, role of pairing correlations.

doi: 10.1016/j.nuclphysa.2003.07.009
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2003RA45      Phys.Rev. C 68, 044317 (2003)

A.A.Raduta, L.Zamick, E.Moya de Guerra, A.Faessler, P.Sarriguren

Description of single and double analog states in the f7/2 shell: The Ti isotopes

NUCLEAR STRUCTURE 43,44,45,46,47,48,49Ti; calculated single and double analog states energies, pairing strengths. Single j-shell formalism, particle-core formalism.

doi: 10.1103/PhysRevC.68.044317
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2003SC19      Phys.Lett. B 567, 153 (2003)

S.Schielke, K.-H.Speidel, O.Kenn, J.Leske, N.Gemein, M.Offer, Y.Y.Sharon, L.Zamick, J.Gerber, P.Maier-Komor

First measurement and shell model interpretation of the g factor of the 2+1 state in self-conjugate radioactive 44Ti

NUCLEAR REACTIONS 12C(40Ca, 12C), (40Ca, 8Be), E=95 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin, DSA. 44Ti levels deduced g factors, B(E2), T1/2. Comparison with shell model predictions.

doi: 10.1016/j.physletb.2003.06.027
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2003SC21      Phys.Lett. B 571, 29 (2003)

S.Schielke, D.Hohn, K.-H.Speidel, O.Kenn, J.Leske, N.Gemein, M.Offer, J.Gerber, P.Maier-Komor, O.Zell, Y.Y.Sharon, L.Zamick

Evidence for 40Ca core excitation from g factor and B(E2) measurements on the 2+1 states of 42, 44Ca

NUCLEAR REACTIONS C(42Ca, 42Ca'), (44Ca, 44Ca'), E=95 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin, DSA following projectile Coulomb excitation. 42,44Ca deduced levels T1/2, g factors, B(E2), core excitation effects. Transient field technique. Comparison with shell model predictions.

doi: 10.1016/j.physletb.2003.08.015
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2003SP04      Phys.Rev. C 68, 061302 (2003)

K.-H.Speidel, S.Schielke, O.Kenn, J.Leske, D.Hohn, H.Hodde, J.Gerber, P.Maier-Komor, O.Zell, Y.Y.Sharon, L.Zamick

Nuclear structure of the stable even-A calcium isotopes based on new experiments and shell model calculations

NUCLEAR REACTIONS 12C(46Ca, 46Ca'), (46Ca, 50Ti), E=95 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin following projectile Coulomb excitation and α transfer. 46Ca, 50Ti deduced transitions g-factors, B(E2), level configurations. Transient field technique.

NUCLEAR STRUCTURE 42,44,46Ca; calculated g-factors, B(E2). Large-scale shell model, comparison with data.

doi: 10.1103/PhysRevC.68.061302
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2003TA05      Phys.Lett. B 559, 187 (2003)

M.J.Taylor, N.Benczer-Koller, G.Kumbartzki, T.J.Mertzimekis, S.J.Q.Robinson, Y.Y.Sharon, L.Zamick, A.E.Stuchbery, C.Hutter, C.W.Beausang, J.J.Ressler, M.A.Caprio

Competing core and single particle excitations in the 2+1 state in 44Ca

NUCLEAR REACTIONS C, Cu, Gd(44Ca, 44Ca'), E=85, 90, 95 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin following projectile Coulomb excitation. 44Ca level deduced g factor, configuration. Transient field technique.

doi: 10.1016/S0370-2693(03)00346-0
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2002RO33      Phys.Rev. C66, 034303 (2002)

S.J.Q.Robinson, L.Zamick

Effects of T = 0 Two Body Matrix Elements on M1 and Gamow-Teller Transitions: Isospin decomposition

NUCLEAR STRUCTURE 44,46,48Ti; calculated level energies, J, transitions B(M1), B(GT); deduced role of T=0 two-body matrix elements.

doi: 10.1103/PhysRevC.66.034303
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2002ZA05      Yad.Fiz. 65, 773 (2002); Phys.Atomic Nuclei 65, 740 (2002)

L.Zamick, Sh.J.Q.Robinson

The Love-Hate Relationship between the Shell Model and Cluster Model

doi: 10.1134/1.1471284
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2002ZA06      Phys.Rev. C65, 054321 (2002)

L.Zamick, Y.Y.Sharon, S.Aroua, M.S.Fayache

Towards a Self-Consistent Shell Model

NUCLEAR STRUCTURE A=15; calculated levels, spin-orbit splitting. Self-consistent approach.

doi: 10.1103/PhysRevC.65.054321
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2001RO10      Phys.Rev. C63, 054311 (2001)

S.J.Q.Robinson, L.Zamick

Effect of Deformation on the Twist and Other Dipole Modes

NUCLEAR STRUCTURE 12C; calculated strengths, energies for twist and dipole operators vs deformation.

doi: 10.1103/PhysRevC.63.054311
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2001RO11      Phys.Rev. C63, 057301 (2001)

S.J.Q.Robinson, L.Zamick

Structure of the Nearly Degenerate 61+ and 62+ States in 48Ti

NUCLEAR STRUCTURE 48Ti; calculated level energies, moment, transitions B(E2). Comparison of single-shell, configuration mixing approaches.

doi: 10.1103/PhysRevC.63.057301
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2001RO13      Phys.Rev. C63, 064316 (2001)

S.J.Q.Robinson, L.Zamick

Degeneracies When T = 0 Two Body Matrix Elements are Set Equal to Zero and Regge's 6j Symmetry Relations

NUCLEAR STRUCTURE 43,44Ti; calculated levels, J, π; deduced role of T=0 interactions. Shell model.

doi: 10.1103/PhysRevC.63.064316
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2001RO19      Nucl.Phys. A690, 314c (2001)

S.J.Q.Robinson, L.Zamick

The Effect of Deformation on the Twist Mode

NUCLEAR STRUCTURE 12C; calculated twist mode excitation energies, strengths vs deformation.

doi: 10.1016/S0375-9474(01)00966-6
Citations: PlumX Metrics


2001RO30      Phys.Rev. C64, 057302 (2001)

S.J.Q.Robinson, L.Zamick

Degeneracies When T = 0 Two Body Interaction Matrix Elements are Set Equal to Zero: Talmi's method of calculating coefficients of fractional parentage to states forbidden by the Pauli principle

NUCLEAR STRUCTURE 43Sc, 43,44Ti; analyzed level energies, degeneracies.

doi: 10.1103/PhysRevC.64.057302
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2001SH01      Phys.Rev. C63, 014303 (2001)

Y.Y.Sharon, M.S.Fayache, Y.D.Devi, L.Zamick, H.Muther

Dependence of the Shell-Model Single-Particle Energies on Different Components of the Nucleon-Nucleon Interaction

NUCLEAR STRUCTURE A=5; A=15; A=17; calculated levels spin-orbit splitting; deduced role of nucleon-nucleon interactions. Shell model.

doi: 10.1103/PhysRevC.63.014303
Citations: PlumX Metrics


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