Cross-shell states in 15C: A test for p-sd interactions

J. Lois-Fuentes; B. Fernández-Domínguez; X. Pereira-López; F. Delaunay; W.N. Catford; A. Matta; N.A. Orr; T. Duguet; T. Otsuka; V. Somà; O. Sorlin; T. Suzuki; N.L. Achouri; M. Assié; S. Bailey; B. Bastin; Y. Blumenfeld; R. Borcea; M. Caamaño; L. Caceres; E. Clément; A. Corsi; N. Curtis; Q. Deshayes; F. Farget; M. Fisichella; G. de France; S. Franchoo; M. Freer; J. Gibelin; A. Gillibert; G.F. Grinyer; F. Hammache; O. Kamalou; A. Knapton; Tz Kokalova; V. Lapoux; B. Le Crom; S. Leblond; F.M. Marqués; P. Morfouace; J. Pancin; L. Perrot; J. Piot; E. Pollacco; D. Ramos; D. Regueira-Castro; C. Rodríguez-Tajes; T. Roger; F. Rotaru; M. Sénoville; N. de Séréville; R. Smith; M. Stanoiu; I. Stefan; C. Stodel; D. Suzuki; J.C. Thomas; N. Timofeyuk; M. Vandebrouck; J. Walshe; C. Wheldon

doi:10.1016/j.physletb.2023.138149

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Cross-shell states in 15C: A test for p-sd interactions

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Cross-shell states in 15C: A test for p-sd interactions

J. Lois-Fuentes, B. Fernández-Domínguez, X. Pereira-López, F. Delaunay, W.N. Catford, A. Matta, N.A. Orr, T. Duguet, T. Otsuka, V. Somà, …

Physics letters. B, Vol.845, 138149

01/10/2023

DOI: https://doi.org/10.1016/j.physletb.2023.138149

Abstract

Ab initio calculations

Neutron-rich carbon isotopes

One neutron pick-up reaction

Phenomenological shell-model

The low-lying structure of 15C has been investigated via the neutron-removal 16C(d,t) reaction. Along with the known bound neutron sd-shell states, unbound p-shell hole states have been observed. The excitation energies and the deduced spectroscopic factors of the cross-shell states are an important measure of the [(p)−1(sd)2] neutron configurations in 15C. Our results show a very good agreement with shell-model calculations using the SFO-tls interaction for 15C. However, this same interaction predicted energies that were too low for the corresponding hole states in the N=9 isotone 17O and adjustment of the p-sd and sd-sd monopole terms was required to match the 17O energies. In addition, the excitation energies and spectroscopic factors have been compared to the first calculations of 15C with the ab initio self-consistent Green's function method employing the NNLOsat interaction. The results show the sensitivity to the size of the N=8 shell gap and highlight the need to go beyond the current truncation scheme.

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Title: Cross-shell states in 15C: A test for p-sd interactions
Creators: J. Lois-Fuentes - Universidade de Santiago de Compostela
B. Fernández-Domínguez - Universidade de Santiago de Compostela
X. Pereira-López - Universidade de Santiago de Compostela
F. Delaunay - Université de Caen Normandie
W.N. Catford - University of Surrey, School of Maths and Physics
A. Matta - Université de Caen Normandie
N.A. Orr - Université de Caen Normandie
T. Duguet - IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
T. Otsuka - The University of Tokyo
V. Somà - Institut de Recherche sur les Lois Fondamentales de l'Univers
O. Sorlin - BP
T. Suzuki - Nihon University
N.L. Achouri - Université de Caen Normandie
M. Assié - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
S. Bailey - University of Birmingham
B. Bastin - BP
Y. Blumenfeld - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
R. Borcea - Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering
M. Caamaño - Universidade de Santiago de Compostela
L. Caceres - BP
E. Clément - GANIL
A. Corsi - Institut de Recherche sur les Lois Fondamentales de l'Univers
N. Curtis - University of Birmingham
Q. Deshayes - Université de Caen Normandie
F. Farget - GANIL
M. Fisichella - Laboratori Nazionali del Sud
G. de France - BP
S. Franchoo - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
M. Freer - University of Birmingham
J. Gibelin - Université de Caen Normandie
A. Gillibert - Institut de Recherche sur les Lois Fondamentales de l'Univers
G.F. Grinyer - University of Regina
F. Hammache - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
O. Kamalou - GANIL
A. Knapton - Department of Physics, University of Surrey, Guildford GU2 5XH, UK
Tz Kokalova - University of Birmingham
V. Lapoux - Institut de Recherche sur les Lois Fondamentales de l'Univers
B. Le Crom - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
S. Leblond - Université de Caen Normandie
F.M. Marqués - Université de Caen Normandie
P. Morfouace - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
J. Pancin - GANIL
L. Perrot - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
J. Piot - GANIL
E. Pollacco - Institut de Recherche sur les Lois Fondamentales de l'Univers
D. Ramos - Universidade de Santiago de Compostela
D. Regueira-Castro - Universidade de Santiago de Compostela
C. Rodríguez-Tajes - GANIL
T. Roger - GANIL
F. Rotaru - Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering
M. Sénoville - Université de Caen Normandie
N. de Séréville - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
R. Smith - University of Birmingham
M. Stanoiu - Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering
I. Stefan - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
C. Stodel - GANIL
D. Suzuki - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
J.C. Thomas - GANIL
N. Timofeyuk - University of Surrey, School of Maths and Physics
M. Vandebrouck - GANIL
J. Walshe - University of Birmingham
C. Wheldon - University of Birmingham
Publication Details: Physics letters. B, Vol.845, 138149
Publisher: Elsevier B.V
Date published: 01/10/2023
Identifiers: 99822613002346
Academic Unit: School of Maths and Physics
Language: English
Resource Type: Journal article

Cross-shell states in 15C: A test for p-sd interactions

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