Nuclear Science References (NSR)

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 g_7/2 - d_5/2 model space

NUCLEAR STRUCTURE ^{112,114,116,118,120,122,124,126}Sn; 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. ^{107,109,111,113,125,127}Sn; 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)

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

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 J_max(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 f_5/2 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)

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 9_j 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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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, 76}Ge: 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 ^{60,62,64,66,68,70,72,74,76,78,80}Zn; ^{64,66,68,70,72,74,76,78,80,82}Ge; ^{66,68,70,72,74,76,78,80,82,84}Se; ^{72,74,76,78,80,82,84,86}Kr; ^{76,78,80,82,84,86,88}Sr; 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=N_pN_n/(N_p+N_n). 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)

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=J_max 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 f_7/2 and g_9/2 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)

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

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 ^{36,38,40,42,44,46}Ar; calculated 2⁺ state energy, g factor. ^{41,43,45,47,49}K; 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)

Symmetries in the g_9/2 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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2011ZA04 Phys.Rev. C 84, 017302 (2011)

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)

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 ^{38,40,42,44,46}Ar; 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, T_1/2 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, ^{74,76,78,80,82}Se.

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

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)

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 g_9/2 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, T_1/2, 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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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1995. Data from this article have been entered in the XUNDL database. For more information, click here.

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, T_1/2, 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), T_1/2. 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)

Symmetries and structure in the fp shell and g_9/2 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)

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)

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)

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)

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 f_7/2 shell: The Ti isotopes

NUCLEAR STRUCTURE ^{43,44,45,46,47,48,49}Ti; 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), T_1/2. 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, 44}Ca

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 T_1/2, 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)

L.Zamick, Sh.J.Q.Robinson

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)

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)

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)

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)

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)

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