States in $sup 126$Sb populated in the $beta$ decay of 10$sup 5$-yr $sup 126$Sn

Journal Article · Thu Jan 01 04:00:00 EST 1976 · Phys. Rev., C, v. 13, no. 1, pp. 387-398

OSTI ID:4065150

Smith, Jr, H A; Bunker, M E; Starner, J W; Orth, C J; Lobner, K E.G.

The low-energy level structure of the odd-odd nucleus $sup 126$Sb has been investigated by studying the radioactive decay of 10$sup 5$-yr $sup 126$Sn, by using Ge(Li) and Si(Li) detectors. From conversion-electron and $gamma$-ray singles data, $gamma$$-$$gamma$ and $gamma$-e$sup -$ prompt and delayed coincidence measurements, and complementary $gamma$-ray energy and intensity balance arguments, a decay scheme for $sup 126$Sn has been deduced which accommodates all of the observed $gamma$-ray transitions. The energies (keV), spins, and parities of the levels established in $sup 126$Sb are as follows: 0.0 [8$sup -$], 17.7 [5$sup +$], 40.4 [3$sup -$], 83.1 [4$sup -$, (3$sup -$)], 104.7 [3$sup +$], and 128.0 [2$sup +$]. The respective half-lives of these six states are: 12.4 day, 19.0 min, approx. =11 s, 5.1 ns, 553 ns, and 78.0 ns, the latter four values having been determined in the present investigation. The level assignments are discussed within the framework of the single-particle shell model and in relation to the proposed assignments of low-lying energy levels of neighboring odd-odd antimony isotopes. (AIP)

• Research Organization: University of California, Los Alamos Scientific Laboratory, Los Alamos, New Mexico 87544
• NSA Number: NSA-33-027681
• OSTI ID: 4065150
• Journal Information: Phys. Rev., C, v. 13, no. 1, pp. 387-398, Journal Name: Phys. Rev., C, v. 13, no. 1, pp. 387-398; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

642803*
ANTIMONY 126-- BRANCHING RATIO-- ENERGY LEVELS-- ENERGY-LEVEL TRANSITIONS-- ISOMERIC TRANSITIONS-- LIFETIME-- MULTIPOLARITY-- NUCLEAR STRUCTURE-- PARITY-- SHELL MODELS-- SPIN
INTERNAL CONVERSION BETA PARTICLES-- BETA-MINUS DECAY-- COINCIDENCE SPECTROMETRY-- ELECTRONS-- GAMMA RADIATION-- GAMMA SPECTRA-- TIN 126
N68721 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
90 <= A <= 149--Radioactive Decay
N68731* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
90 <= A <= 149--Energy Levels & Transitions