A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Coulomb excitation of the |Tz|=1/2, A=23 mirror pair (2022)


Henderson, J., Hackman, G., Ruotsalainen, P., Holt, J. D., Stroberg, S. R., Andreoiu, C., Ball, G. C., Bernier, N., Bowry, M., Caballero-Folch, R., Cruz, S., Diaz, V. A., Evitts, L. J., Frederick, R., Garnsworthy, A. B., Holl, M., Lassen, J., Measures, J., Olaizola, B., . . . Wu, C. Y. (2022). Coulomb excitation of the |Tz|=1/2, A=23 mirror pair. Physical Review C, 105(3), Article 034332. https://doi.org/10.1103/PhysRevC.105.034332


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Henderson, J.; Hackman, G.; Ruotsalainen, P.; Holt, J. D.; Stroberg, S. R.; Andreoiu, C.; Ball, G. C.; Bernier, N.; Bowry, M.; Caballero-Folch, R.; et al.

Lehti tai sarja: Physical Review C

ISSN: 2469-9985

eISSN: 2469-9993

Julkaisuvuosi: 2022

Ilmestymispäivä: 28.03.2022

Volyymi: 105

Lehden numero: 3

Artikkelinumero: 034332

Kustantaja: American Physical Society (APS)

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1103/PhysRevC.105.034332

Julkaisun avoin saatavuus: Ei avoin

Julkaisukanavan avoin saatavuus: 

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/81625

Julkaisu on rinnakkaistallennettu: https://arxiv.org/abs/2005.03796


Tiivistelmä

Background: Electric-quadrupole (E2) strengths relate to the underlying quadrupole deformation of a nucleus and present a challenge for many nuclear theories. Mirror nuclei in the vicinity of the line of N=Z represent a convenient laboratory for testing deficiencies in such models, making use of the isospin symmetry of the systems.

Purpose: Uncertainties associated with literature E2 strengths in 23Mg are some of the largest in Tz=∣∣12∣∣ nuclei in the sd shell. The purpose of the present paper is to improve the precision with which these values are known, to enable better comparison with theoretical models.

Methods: Coulomb-excitation measurements of 23Mg and 23Na were performed at the TRIUMF-ISAC facility using the TIGRESS spectrometer. They were used to determine the E2 matrix elements of mixed E2/M1 transitions.

Results: Reduced E2 transition strengths, B(E2), were extracted for 23Mg and 23Na. Their precision was improved by factors of approximately 6 for both isotopes, while agreeing within uncertainties with previous measurements.

Conclusions: A comparison was made with both shell-model and ab initio valence-space in-medium similarity renormalization group calculations. Valence-space in-medium similarity renormalization group calculations were found to underpredict the absolute E2 strength, in agreement with previous studies.


YSO-asiasanat: ydinfysiikka


Liittyvät organisaatiot

JYU-yksiköt:


OKM-raportointi: Kyllä

Raportointivuosi: 2022

JUFO-taso: 2


Viimeisin päivitys 2024-03-04 klo 19:06