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High-precision spectroscopy of $^{20}$O benchmarking ab-initio calculations in light nuclei

Fuente: arXiv

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Autori principali:	Zanon, I., Clément, E., Goasduff, A., Menéndez, J., Miyagi, T., Assié, M., Ciemała, M., Flavigny, F., Lemasson, A., Matta, A., Ramos, D., Rejmund, M., Achouri, L., Ackermann, D., Barrientos, D., Beaumel, D., Benzoni, G., Boston, A. J., Boston, H. C., Bottoni, S., Bracco, A., Brugnara, D., de France, G., de Sereville, N., Delaunay, F., Desesquelles, P., Didierjean, F., Domingo-Prato, C., Dudouet, J., Eberth, J., Fernández, D., Fougères, C., Gadea, A., Galtarossa, F., Girard-Alcindor, V., Gonzales, V., Gottardo, A., Hammache, F., Harkness-Brennan, L. J., Hess, H., Judson, D. S, Jungclaus, A., Kaşkaş, A., Kim, Y. H., Kuşoğlu, A., Labiche, M., Leblond, S., Lenain, C., Lenzi, S. M., Leoni, S., Li, H., Ljungvall, J., Lois-Fuentes, J., Lopez-Martens, A., Maj, A., Menegazzo, R., Mengoni, D., Michelagnoli, C., Million, B., Napoli, D. R., Nyberg, J., Pasqualato, G., Podolyak, Zs., Pullia, A., Quintana, B., Recchia, F., Regueira-Castro, D., Reiter, P., Rezynkina, K., Rojo, J. S., Salsac, M. D., Sanchis, E., Şenyiğit, M., Siciliano, M., Sohler, D., Stezowski, O., Theisen, Ch., Utepov, A., Valiente-Dobón, J. J., Verney, D., Zielinska, M.
Natura:	Preprint
Pubblicazione:	2024
Soggetti:	Nuclear Experiment Nuclear Theory
Accesso online:	Acceder al recurso
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_version_	1866911884938051584
author	Zanon, I. Clément, E. Goasduff, A. Menéndez, J. Miyagi, T. Assié, M. Ciemała, M. Flavigny, F. Lemasson, A. Matta, A. Ramos, D. Rejmund, M. Achouri, L. Ackermann, D. Barrientos, D. Beaumel, D. Benzoni, G. Boston, A. J. Boston, H. C. Bottoni, S. Bracco, A. Brugnara, D. de France, G. de Sereville, N. Delaunay, F. Desesquelles, P. Didierjean, F. Domingo-Prato, C. Dudouet, J. Eberth, J. Fernández, D. Fougères, C. Gadea, A. Galtarossa, F. Girard-Alcindor, V. Gonzales, V. Gottardo, A. Hammache, F. Harkness-Brennan, L. J. Hess, H. Judson, D. S Jungclaus, A. Kaşkaş, A. Kim, Y. H. Kuşoğlu, A. Labiche, M. Leblond, S. Lenain, C. Lenzi, S. M. Leoni, S. Li, H. Ljungvall, J. Lois-Fuentes, J. Lopez-Martens, A. Maj, A. Menegazzo, R. Mengoni, D. Michelagnoli, C. Million, B. Napoli, D. R. Nyberg, J. Pasqualato, G. Podolyak, Zs. Pullia, A. Quintana, B. Recchia, F. Regueira-Castro, D. Reiter, P. Rezynkina, K. Rojo, J. S. Salsac, M. D. Sanchis, E. Şenyiğit, M. Siciliano, M. Sohler, D. Stezowski, O. Theisen, Ch. Utepov, A. Valiente-Dobón, J. J. Verney, D. Zielinska, M.
author_facet	Zanon, I. Clément, E. Goasduff, A. Menéndez, J. Miyagi, T. Assié, M. Ciemała, M. Flavigny, F. Lemasson, A. Matta, A. Ramos, D. Rejmund, M. Achouri, L. Ackermann, D. Barrientos, D. Beaumel, D. Benzoni, G. Boston, A. J. Boston, H. C. Bottoni, S. Bracco, A. Brugnara, D. de France, G. de Sereville, N. Delaunay, F. Desesquelles, P. Didierjean, F. Domingo-Prato, C. Dudouet, J. Eberth, J. Fernández, D. Fougères, C. Gadea, A. Galtarossa, F. Girard-Alcindor, V. Gonzales, V. Gottardo, A. Hammache, F. Harkness-Brennan, L. J. Hess, H. Judson, D. S Jungclaus, A. Kaşkaş, A. Kim, Y. H. Kuşoğlu, A. Labiche, M. Leblond, S. Lenain, C. Lenzi, S. M. Leoni, S. Li, H. Ljungvall, J. Lois-Fuentes, J. Lopez-Martens, A. Maj, A. Menegazzo, R. Mengoni, D. Michelagnoli, C. Million, B. Napoli, D. R. Nyberg, J. Pasqualato, G. Podolyak, Zs. Pullia, A. Quintana, B. Recchia, F. Regueira-Castro, D. Reiter, P. Rezynkina, K. Rojo, J. S. Salsac, M. D. Sanchis, E. Şenyiğit, M. Siciliano, M. Sohler, D. Stezowski, O. Theisen, Ch. Utepov, A. Valiente-Dobón, J. J. Verney, D. Zielinska, M.
contents	The excited states of unstable $^{20}$O were investigated via $γ$-ray spectroscopy following the $^{19}$O$(d,p)^{20}$O reaction at 8 $A$MeV. By exploiting the Doppler Shift Attenuation Method, the lifetime of the 2$^+_2$ and 3$^+_1$ states were firmly established. From the $γ$-ray branching and E2/M1 mixing ratios for transitions deexciting the 2$^+_2$ and 3$^+_1$ states, the B(E2) and B(M1) were determined. Various chiral effective field theory Hamiltonians, describing the nuclear properties beyond ground states, along with a standard USDB interaction, were compared with the experimentally obtained data. Such a comparison for a large set of $γ$-ray transition probabilities with the valence space in medium similarity renormalization group ab-initio calculations was performed for the first time in a nucleus far from stability. It was shown that the ab-initio approaches using chiral EFT forces are challenged by detailed high-precision spectroscopic properties of nuclei. The reduced transition probabilities were found to be a very constraining test of the performance of the ab-initio models.
format	Preprint
id	arxiv_https___arxiv_org_abs_2405_14305
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	High-precision spectroscopy of $^{20}$O benchmarking ab-initio calculations in light nuclei Zanon, I. Clément, E. Goasduff, A. Menéndez, J. Miyagi, T. Assié, M. Ciemała, M. Flavigny, F. Lemasson, A. Matta, A. Ramos, D. Rejmund, M. Achouri, L. Ackermann, D. Barrientos, D. Beaumel, D. Benzoni, G. Boston, A. J. Boston, H. C. Bottoni, S. Bracco, A. Brugnara, D. de France, G. de Sereville, N. Delaunay, F. Desesquelles, P. Didierjean, F. Domingo-Prato, C. Dudouet, J. Eberth, J. Fernández, D. Fougères, C. Gadea, A. Galtarossa, F. Girard-Alcindor, V. Gonzales, V. Gottardo, A. Hammache, F. Harkness-Brennan, L. J. Hess, H. Judson, D. S Jungclaus, A. Kaşkaş, A. Kim, Y. H. Kuşoğlu, A. Labiche, M. Leblond, S. Lenain, C. Lenzi, S. M. Leoni, S. Li, H. Ljungvall, J. Lois-Fuentes, J. Lopez-Martens, A. Maj, A. Menegazzo, R. Mengoni, D. Michelagnoli, C. Million, B. Napoli, D. R. Nyberg, J. Pasqualato, G. Podolyak, Zs. Pullia, A. Quintana, B. Recchia, F. Regueira-Castro, D. Reiter, P. Rezynkina, K. Rojo, J. S. Salsac, M. D. Sanchis, E. Şenyiğit, M. Siciliano, M. Sohler, D. Stezowski, O. Theisen, Ch. Utepov, A. Valiente-Dobón, J. J. Verney, D. Zielinska, M. Nuclear Experiment Nuclear Theory The excited states of unstable $^{20}$O were investigated via $γ$-ray spectroscopy following the $^{19}$O$(d,p)^{20}$O reaction at 8 $A$MeV. By exploiting the Doppler Shift Attenuation Method, the lifetime of the 2$^+_2$ and 3$^+_1$ states were firmly established. From the $γ$-ray branching and E2/M1 mixing ratios for transitions deexciting the 2$^+_2$ and 3$^+_1$ states, the B(E2) and B(M1) were determined. Various chiral effective field theory Hamiltonians, describing the nuclear properties beyond ground states, along with a standard USDB interaction, were compared with the experimentally obtained data. Such a comparison for a large set of $γ$-ray transition probabilities with the valence space in medium similarity renormalization group ab-initio calculations was performed for the first time in a nucleus far from stability. It was shown that the ab-initio approaches using chiral EFT forces are challenged by detailed high-precision spectroscopic properties of nuclei. The reduced transition probabilities were found to be a very constraining test of the performance of the ab-initio models.
title	High-precision spectroscopy of $^{20}$O benchmarking ab-initio calculations in light nuclei
topic	Nuclear Experiment Nuclear Theory
url	https://arxiv.org/abs/2405.14305