Testing 
<i>ab initio</i>
 nuclear structure in neutron-rich nuclei: Lifetime measurements of second 
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Ciemała, M.; Ziliani, S.; Crespi, F. C. L.; Leoni, S.; Fornal, B.; Maj, A.; Bednarczyk, P.; Bracco, A.; Boiano, C.; Bottoni, S.; Brambilla, S.; Bast, M.; Beckers, M.; Braunroth, T.; Camera, F.; Cieplicka-Oryńczak, N.; Clément, E.; Coelli, S.; Dorvaux, O.; Ertürk, S.; Fransen, C.; Goldkuhle, A.; Grȩbosz, J.; Harakeh, M. N.; Iskra, Ł. W.; Jacquot, B.; Карпов, А. В.; Kicińska‐Habior, M.; Kim, Y.; Kmiecik, M.; Lemasson, A.; Lenzi, S. M.; Lewitowicz, M.; Li, H.; Matéa, I.; Mazurek, K.; Michelagnoli, C.; Matejska-Minda, M.; Million, B.; Müller-Gatermann, C.; Nanal, V.; Napiórkowski, P.; Napoli, D. R.; Palit, R.; Rejmund, M.; Schmitt, C.; Stănoiu, M.; Stefan, I.; Vardaci, E.; Wasilewska, B.; Wieland, O.; Ziębliński, M.; Zielińska, M.; Ataç, A.; Barrientos, D.; Birkenbach, B.; Boston, A. J.; Cederwall, B.; Charles, L.; Collado, J.; Cullen, D. M.; Désesquelles, P.; Domingo‐Pardo, C.; Dudouet, J.; Eberth, J.; González, V.; Goupil, J.; Harkness-Brennan, L. J.; Hess, H.; Judson, D. S.; Jungclaus, A.; Körten, W.; Labiche, M.; Lefèvre, A.; Menegazzo, R.; Mengoni, D.; Nyberg, J.; Pérez-Vidal, R. M.; Podolyák, Zs.; Pullia, A.; Recchia, F.; Reiter, P.; Saillant, F.; Salsac, M. D.; Sanchís, E.; Stézowski, O.; Theisen, Ch.; Holt, J. D.; Menéndez, J. Fernández; Schwenk, A.; Simonis, J.

doi:10.1103/physrevc.101.021303

Cited by 19 publications

(12 citation statements)

References 62 publications

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“…In this paper, we aim at a complete γ spectroscopy of bound states in 18 N, which will be instrumental in constraining cross-shell interactions [26] in this region of the nuclear chart. We used deep-inelastic processes, induced by an 18 O beam on a thick 181 Ta target [27][28][29], to populate states in 18 N, and the Advanced GAmma Tracking Array (AGATA) [30][31][32], to detect the γ decays from these states. Based on the analysis of the collected data, we propose the location of all negative-parity states, below the neutron-separation energy, including 0 − and 1 − states arising from the coupling between a proton hole in the p 1/2 and a neutron in the s 1/2 orbitals.…”

mentioning

confidence: 99%

Complete set of bound negative-parity states in the neutron-rich nucleus N18

Ziliani¹,

Ciemała²,

Crespi³

et al. 2021

Phys. Rev. C

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confidence: 99%

Complete set of bound negative-parity states in the neutron-rich nucleus N18

Ziliani¹,

Ciemała²,

Crespi³

et al. 2021

Phys. Rev. C

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“…Thus, an interaction that properly takes into account proton excitations across Z = 20 yet needs to be developed. With advances in many-body methods and NN+3N forces from χEFT [7,51], first-principles calculations of electromagnetic properties of medium-mass nuclei are now possible using the VS-IMSRG [22,52,53,54], with first applications in the sd shell [19,20,55,56,57,58,59]. Here, we use two chiral interactions for the first time in the p f space: NNLO sat [23] and ∆NNLO GO (394) [24]; the latter includes explicitly ∆(1232)-isobars and has so far only been tested for charge radii and binding energies [17,60].…”

Section: (D) and Discussion Below)mentioning

confidence: 99%

Electromagnetic moments of scandium isotopes and $N=28$ isotones in the distinctive $0f_{7/2}$ orbit

Bai¹,

Koszorús²,

Hu³

et al. 2022

Preprint

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The electric quadrupole moment of 49 Sc was measured by collinear laser spectroscopy at CERN-ISOLDE to be Q s = −0.159(8) eb, and a nearly tenfold improvement in precision was reached for the electromagnetic moments of 47,49 Sc. The single-particle behavior and nucleon-nucleon correlations are investigated with the electromagnetic moments of Z = 21 isotopes and N = 28 isotones as valence neutrons and protons fill the distinctive 0 f 7/2 orbit, respectively, located between magic numbers, 20 and 28. The experimental data are interpreted with shell-model calculations using an effective interaction, and ab-initio valence-space in-medium similarity renormalization group calculations based on chiral interactions. These results highlight the sensitivity of nuclear electromagnetic moments to different types of nucleon-nucleon correlations, and establish an important benchmark for further developments of theoretical calculations.

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“…The nonlinear behavior in the scanning voltage would stretch or shrink the hyperfine spectrum observed, which would then affect the deduced hyperfine coupling constants. This correction was estimated by comparing the isotope shift between 40 Ca and 44 Ca measured at BECOLA to the well known literature values. A correction of 550 (50) ppm was estimated and applied to the present hyperfine coupling constants.…”

Section: B Correctionsmentioning

confidence: 99%

“…In addition, we provide ab initio magnetic moments from the valence-space formulation of the ab initio inmedium similarity renormalization group (VS-IMSRG) [38,39] based on input two-and three-nucleon forces from chiral EFT [40,41]. Ab initio calculations of electromagnetic properties have progressed to regions near the sd shell [12,[42][43][44][45], where notable, but largely understood, discrepancies have emerged compared with data. Using the Magnus approach [46], we generate an approximate unitary transformation to decouple a given core and valence-space Hamiltonian from the full-space Hamiltonian, where operators are truncated at the two-body level (IMSRG(2)), and 3N forces between valence nucleons is captured via ensemble normal ordering [47].…”

Section: B Ab-initio Imsrg Calculationmentioning

confidence: 99%

Ground State Magnetic Dipole Moment of $^{40}$Sc

Powel,

Brown,

Holt

et al. 2022

Preprint

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The hyperfine coupling constants of the proton dripline odd-odd 40 Sc nucleus were deduced from the hyperfine spectrum of the 3d4s 3 D2 ↔ 3d4p 3 F • 3 transition in Sc II, measured by the bunched beam collinear laser spectroscopy technique. The ground state magnetic dipole and electric quadrupole moments were determined for the first time as µ = +5.57(4)(2) µN and Q = +42(38)(28) e 2 fm 2 , respectively. The magnetic moment is well reproduced by the additivity rule with magnetic moments of neighboring odd-even nuclei in the vicinity of the doubly-magic 40 Ca nucleus. An ab-initio multishell valence-space Hamiltonian was also employed to calculate the magnetic moment of 40 Sc, which spans across the sd and f p nuclear shells, where we obtained good agreements.

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Testing ab initio nuclear structure in neutron-rich nuclei: Lifetime measurements of second 2+ state in C16 and

Cited by 19 publications

References 62 publications

Complete set of bound negative-parity states in the neutron-rich nucleus N18

Complete set of bound negative-parity states in the neutron-rich nucleus N18

Electromagnetic moments of scandium isotopes and $N=28$ isotones in the distinctive $0f_{7/2}$ orbit

Ground State Magnetic Dipole Moment of $^{40}$Sc

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