Details

Autor(en) / Beteiligte

• Wimmer, K.
• Ruotsalainen, P.
• Lenzi, S.M.
• Poves, A.
• Hüyük, T.
• Browne, F.
• Doornenbal, P.
• Koiwai, T.
• Arici, T.
• Auranen, K.
• Bentley, M.A.
• Cortés, M.L.
• Delafosse, C.
• Eronen, T.
• Ge, Z.
• Grahn, T.
• Greenlees, P.T.
• Illana, A.
• Imai, N.
• Joukainen, H.
• Julin, R.
• Jungclaus, A.
• Jutila, H.
• Kankainen, A.
• Kitamura, N.
• Longfellow, B.
• Louko, J.
• Lozeva, R.
• Luoma, M.
• Mauss, B.
• Napoli, D.R.
• Niikura, M.
• Ojala, J.
• Pakarinen, J.
• Pereira-Lopez, X.
• Rahkila, P.
• Recchia, F.
• Sandzelius, M.
• Sarén, J.
• Taniuchi, R.
• Tann, H.
• Uthayakumaar, S.
• Uusitalo, J.
• Vaquero, V.
• Wadsworth, R.
• Zimba, G.
• Yajzey, R.

Titel

Isospin symmetry in the T = 1,A = 62 triplet

Ist Teil von

• Physics letters. B, 2023-12, Vol.847, p.138249, Article 138249

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Excited states in the Tz=0,−1 nuclei 62Ga and 62Ge were populated in direct reactions of relativistic radioactive ion beams at the RIBF. Coincident γ rays were measured with the DALI2+ array and uniquely assigned to the A=62 isobars. In addition, 62Ge was also studied independently at JYFL-ACCLAB using the 24Mg(40Ca,2n)62Ge fusion-evaporation reaction. The first excited T=1,Jπ=2+ states in 62Ga and 62Ge were identified at 979(1) and 965(1) keV, respectively, resolving discrepant interpretations in the literature. States beyond the first 2+ state in 62Ge were also identified for the first time in the present work. The results are compared with shell-model calculations in the fp model space. Mirror and triplet energy differences are analyzed in terms of individual charge-symmetry and charge-independence breaking contributions. The MED results confirm the shrinkage of the p-orbits' radii when they are occupied by at least one nucleon on average.