Details

Autor(en) / Beteiligte

• Saiz-Lomas, J.
• Petri, M.
• Lee, I.Y.
• Syndikus, I.
• Heil, S.
• Allmond, J.M.
• Gaffney, L.P.
• Pakarinen, J.
• Badran, H.
• Calverley, T.
• Cox, D.M.
• Forsberg, U.
• Grahn, T.
• Greenlees, P.
• Hadyńska-Klȩk, K.
• Hilton, J.
• Jenkinson, M.
• Julin, R.
• Konki, J.
• Macchiavelli, A.O.
• Mathy, M.
• Ojala, J.
• Papadakis, P.
• Partanen, J.
• Rahkila, P.
• Ruotsalainen, P.
• Sandzelius, M.
• Sarén, J.
• Stolze, S.
• Uusitalo, J.
• Wadsworth, R.

Titel

The spectroscopic quadrupole moment of the 21+ state of 12C: A benchmark of theoretical models

Ist Teil von

• Physics letters. B, 2023-10, Vol.845 (1), p.138114, Article 138114

Ort / Verlag

United States: Elsevier B.V

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• The spectroscopic quadrupole moment of the first 2+ state of 12C has been measured employing the Coulomb-excitation re-orientation technique. Our result of Qs(21+)=+9.3−3.8+3.5efm2 suggests a larger oblate deformation than previously reported. Combining this with the consistently re-analyzed adopted value, we present the most precise value to date of Qs(21+)=+9.5(18)efm2, which is consistent with a geometrical rotor description. This simple outcome is compared to state-of-the-art shell-model, mean-field, ab initio calculations, cluster-based and geometrical-like theories, which show varying degrees of emergent quadrupole collectivity.