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NSR database version of April 27, 2024.

Search: Author = D.Kekejian

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2024PA10      Phys.Lett. B 848, 138340 (2024)

F.Pan, Y.Zhang, L.Dai, J.P.Draayer, D.Kekejian

A multi-shell extension of the interacting boson model

NUCLEAR STRUCTURE ¹⁵²Sm; calculated strength distributions, energy levels, J, π, B(Eλ), electric quadrupole moments with a multi-shell extension of the IBM for even-even nuclei that includes multiple excitations. Comparison with available data.

doi: 10.1016/j.physletb.2023.138340
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2022KE02      Phys.Rev. C 106, 014304 (2022)

D.Kekejian, J.P.Draayer, V.I.Mokeev, C.D.Roberts

Symplectic effective field theory for nuclear structure studies

NUCLEAR STRUCTURE ^20,22Ne, ²²Mg; calculated levels, J, π, B(E2), and matter rms radii using symplectic effective field theory, starting from a simple extension of the harmonic-oscillator Lagrangian. Comparison with experimental values.

doi: 10.1103/PhysRevC.106.014304
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2022TE06      Few-Body Systems 63, 67 (2022)

I.Tews, Z.Davoudi, A.Ekstrom, J.D.Holt, K.Becker, R.Briceno, D.J.Dean, W.Detmold, C.Drischler, T.Duguet, E.Epelbaum, A.Gasparyan, J.Gegelia, J.R.Green, H.W.Griesshammer, A.D.Hanlon, M.Heinz, H.Hergert, M.Hoferichter, M.Illa, D.Kekejian, A.Kievsky, S.Konig, H.Krebs, K.D.Launey, D.Lee, P.Navratil, A.Nicholson, A.Parreno, D.R.Phillips, M.Ploszajczak, X.-L.Ren, T.R.Richardson, C.Robin, G.H.Sargsyan, M.J.Savage, M.R.Schindler, P.E.Shanahan, R.P.Springer, A.Tichai, U.van Kolck, M.L.Wagman, A.Walker-Loud, C.-J.Yang, X.Zhang

Nuclear Forces for Precision Nuclear Physics: A Collection of Perspectives

doi: 10.1007/s00601-022-01749-x
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2019MI22      Phys.Rev. C 100, 064310 (2019)

M.E.Miora, K.D.Launey, D.Kekejian, F.Pan, J.P.Draayer

Exact isovector pairing in a shell-model framework: Role of proton-neutron correlations in isobaric analog states

NUCLEAR STRUCTURE ¹⁰He, ^10,12Be, ^10,12B, ^10,12,14C, ^12,14N, ^{12,14,18,20,22}O, ^18,20F, ^18,20,22Ne, ²²Na, ^20,22Mg, ^22,34Si, ^34,36S, ³⁴Cl, ^34,38Ar, ^36,38K, ^{34,36,38,42,44,46}Ca, ^42,44Sc, ^{36,42,44,46,50}Ti, ^46,50V, ^44,46,50,52Cr, ^50,52Mn, ^46,50,52,54Fe, ^54,58Co, ^{50,52,54,58,60,62}Ni, ^58,60,62Zn, ⁶²Ga, ^60,62Ge; calculated energies of 0+, T=0-3 states, binding energies and lowest isobaric analog 0+, T=0-3 excited states, staggering amplitudes for the total energy, total isovector pairing gaps. Shell-model Hamiltonian giving exact solutions for the lowest isobaric analog 0+, T=0-3 states using ¹⁶O, ⁴⁰Ca and ⁵⁶Ni as core nuclei. Comparison with experimental data. Discussed proton-neutron pairing correlations in nuclei, of relevance for waiting-point nuclei for the rp nucleosynthesis.

doi: 10.1103/PhysRevC.100.064310
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