Details

Autor(en) / Beteiligte

• Wang, J.G.
• Gan, Z.G.
• Zhang, Z.Y.
• Huang, M.H.
• Ma, L.
• Zhang, M.M.
• Yang, H.B.
• Yang, C.L.
• Qiang, Y.H.
• Huang, X.Y.
• Zhao, Z.
• Xu, S.Y.
• Li, Z.C.
• Chen, L.X.
• Sun, L.C.
• Zhou, H.
• Zhang, X.
• Wu, X.L.
• Tian, Y.L.
• Wang, Y.S.
• Wang, J.Y.
• Huang, W.X.
• Liu, M.L.
• Lu, Z.W.
• He, Y.
• Ren, Z.Z.
• Zhou, S.G.
• Zhou, X.H.
• Xu, H.S.
• Utyonkov, V.K.
• Voinov, A.A.
• Tsyganov, Yu.S.
• Polyakov, A.N.

Titel

α-decay properties of new neutron-deficient isotope 203Ac

Ist Teil von

• Physics letters. B, 2024-03, Vol.850, p.138503, Article 138503

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2024

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• A new isotope 203Ac was produced in the reaction 40Ca + 169Tm at beam energy of 226 MeV. One correlated α-decay chain was attributed to 203Ac. The α-particle energy and half-life were determined to be 8217(16) keV and 56−26+269 μs, respectively. The reduced α-decay width (δ2) of 203Ac was deduced to be 1096−906+921 keV, which indicates a favored α decay. The systematics of δ2 and single-particle energy levels indicate that the new state probably arises from the intruder s1/2 configuration, which shows an onset of deformation in Ac isotopes. The proton separation energy Sp of 203Ac was extracted as −1214(22) keV and the systematics of Sp for odd-A isotopes beyond proton drip line were discussed.