Электронный каталог

Статья

Wang, J.G.
*a-Decay Properties of New Neutron-Deficient Isotope *2*0*3Ac / J.G.Wang, V.K.Utyonkov, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov, [et al.] // Physics Letters B [Electronic resource]. – 2024. – Vol. 850. – P. 138503. – URL: https://doi.org/10.1016/j.physletb.2024.138503. – Bibliogr.: 39.

A new isotope *2*0*3Ac was produced in the reaction *4*0Ca + *1*6*9Tm at beam energy of 226 MeV. One correlated *a- decay chain was attributed to *2*0*3Ac. The *a-particle energy and half-life were determined to be 8217(16) keV and 56&sup(+269)&sub(−26) *ms, respectively. The reduced *a-decay width (*d*2 ) of *2*0*3Ac was deduced to be 1096&sup(+921)&sub(−906) keV, which indicates a favored *a decay. The systematics of *d2 and single-particle energy levels indicate that the new state probably arises from the intruder 𝑠&sub(1∕2) configuration, which shows an onset of deformation in Ac isotopes. The proton separation energy 𝑆&sub(𝑝) of *2*0*3Ac was extracted as −1214(22) keV and the systematics of 𝑆&sub(𝑝) for odd-𝐴 isotopes beyond proton drip line were discussed.



Спец.(статьи,препринты) = С 341.1д - Альфа-распад, протонный распад и другие виды распада
ОИЯИ = ОИЯИ (JINR)2024
Ключевых слов = 20/024