Nuclear Data Sheets for 199Pb

✍ Scribed by BALRAJ SINGH; GEORGE REED

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 189 KB
• Volume: 94
• Category: Article
• ISSN: 0090-3752
• DOI: 10.1006/ndsh.2001.0020

✦ Synopsis

2 Pb 117 NUCLEAR DATA SHEETS Adopted Levels, Gammas Q(β -)=-4.35× 10 12; S(n)=7206 SY; S(p)=5010 100; Q(α )=3416 83 1995Au04. ∆ (S(n))=114 (syst,1995Au04). 199 Pb Levels Cross Reference (XREF) Flags A 199 Bi ε Decay: 27 min+24.70 min B 199 Pb IT Decay (12.2 min) C 203 Po α Decay (36.7 min) D 186 W( 18 O,5nγ ) E 198 Hg(α ,3nγ ) E(level) † J π ‡ XREF T 1/2 § Comments 0 . 0 3 / -ABC 9 0 mi n 1 0 % ε +%β + =100. µ =-1.0742 12 (1989Ra17,1986An06). Q=+0.08 9 (1989Ra17,1986An06). µ ,Q: atomic-beam with LASER fluorescence spectroscopy (1986An06). ∆ ( 199 Pb-208 Pb)=-0.516 fm 2 4 (1986An06) from isotope shift measurements. The large change in radius from 201 Pb to 199 Pb is ascribed to a change from f 5/2 to p 3/2 g.s. configurations in the two nuclides. J π : spin from hyperfine structure, π : µ and Q are consistent with ν 3p 3/2 assignment (1983Th03). µ ,Q: measured with LASER induced fluorescence spectroscopy. T 1/2 : from 1955An01; other: ≈ 80 min (1950Ne77). 0+ x ( / 2 -) ABCDE E(level): x<9.3 keV (1962Ju05,1957An53) from 199 Pb IT decay. J π : See comment for 424.8+x level. Probable ν 2f 5/2 orbital. 4 2 4 . 8+ x 2 ( / 2+ ) AB DE 1 2 . 2 mi n 3 %IT<100; %ε +%β + >0. J π : M4 γ to 0+x level; the only possible shell model states available for an M4 transition in the N=117 nucleus are the i 13/2 and f 5/2 states. The i 13/2 probably corresponds to 424.8+x and f 5/2 to 0+x level. T 1/2 : from 1955An01. Other: 13 min 1 (1956St05). J π : ν i 13/2 orbital. 2 1 2 9 . 4 + x 3 ( / 2 ) D 2 3 0 6 . 2 + x 3 ( / 2+ ) DE 2 4 5 1 . 6 + x 4 ( / 2 -) DE Continued on next page (footnotes at end of table) 4 0 0 19 8 9 2 Pb 19 8 9 2 Pb 117 NUCLEAR DATA SHEETS Adopted Levels, Gammas (continued) 199 Pb Levels (continued) E(level) † J π ‡ XREF T 1/2 § Comments 2 4 9 . 9 + x 4 ( 2 5 / 2 -) DE 7 . 9 n s 6 T 1/2 : weighted average of 9.3 ns 6 (1988Pa12), 7.5 ns 3 (1988Ro08), 11 ns 3 (1985St16). Other: 33 ns 3 (1981He07) is discrepant (1981He07). 1989Ra17,1988Ro08).
Configuration=((ν i 13/2 ) -2 12+ ( ν f 5/2 ) -1 ). J π : E2 γ to 25/2-level; measured g-factor agrees with proposed configuration. µ : TDPAD method (1988Ro08,1987Ca23). Other: -1.07 7 (1985St16).
T 1/2 : weighted average of 10.6 µ s 5 (1989Su12,1988Pa12,1981He07), 10.0 µ s 2 (1988Ro08). 2 5 6 . 2 + x 4 ( 2 5 / 2 ) D 2 5 7 . 1 + x 4 ( 2 7 / 2 -) D 2 7 4 . 0 + x 4 ( 2 5 / 2+ ) D 2 8 4 . 2 + x 4 ( 2 5 / 2 ) D 2 9 2 . 1 + x 3 ( 2 1 / 2+ ) D 2 9 8 . 9 + x 4 ( 2 5 / 2+ ) D 2 9 8 . 2 + x 4 ( 2 3 / 2+ ) D 3 1 3 . 1 + x 4 ( 2 5 / 2+ ) D 3 2 1 . 3 + x 4 ( 2 9 / 2 ) D 3 3 5 . 0 + x 4 ( 2 9 / 2 ) D 3 3 8 . 2 + x 4 ( 2 7 / 2+ ) D 3 4 0 . 3 + x 4 ( 2 9 / 2+ ) DE 3 4 9 . 1 + x 4 ( 3 3 / 2+ ) DE 6 3 n s 4 µ =-2.39 15 (1989Ra17,1988Ro08). µ : TDPAD method (1988Ro08). Other: -2.51 5 (1985St16). Configuration=(ν i 13/2 ) -3 . T 1/2 : weighted average of 63 ns 4 (1989Su12), 71 ns 4 (1988Pa12). 55 ns 5 (1988Ro08), 58 ns 6 (1985St16), 55 ns 8 (1981He07).
3 5 3 . 0 + x 4 ( 3 3 / 2 ) D 3 5 8 . 9 + x # 4 ( 2 5 / 2 -) D 3 6 0 . 7 + x 5 D 3 6 5 . 5 + x 4 ( 2 9 / 2+ ) D 3 6 7 . 8 + x # 5 ( 2 7 / 2 -) D 3 7 4 . 6 + x 5 D 3 7 4 . 7 + x 4 ( 2 9 / 2+ ) D 3 7 9 . 9 + x 4 ( 3 3 / 2 ) D 3 8 4 . 7 + x # 6 ( 2 9 / 2 -) D 3 8 5 . 9 + x 4 ( 3 1 / 2 ) D 3 8 5 . 3 + x 5 D 3 8 7 . 5 + x 4 ( 3 3 / 2 ) D 3 9 6 . 7 + x 5 D 4 0 0 . 3 + x 4 ( 2 9 / 2+ ) D 4 0 8 . 0 + x 4 ( 3 1 / 2+ ) D 4 1 0 . 1 + x 4 D 4 1 2 . 1 + x # 7 ( 3 1 / 2 -) D 4 1 4 . 3 + x 5 D 4 2 2 . 3 + x 5 ( 3 5 / 2 ) D 4 2 5 . 5 + x 5 ( 3 7 / 2+ ) D 4 2 9 . 6 + x 4 D 4 3 3 . 4 + x 5 ( 3 7 / 2 ) D 4 3 4 . 8 + x 4 ( 3 1 / 2 ) D 4 3 6 . 6 + x 4 ( 3 1 / 2 ) D 4 3 6 . 6 + x 5 ( 3 7 / 2 ) D 4 4 7 . 7 + x 5 ( 4 1 / 2+ ) D 4 0 n s 1 0 4 4 8 . 5 + x # 7 ( 3 3 / 2 -) D 4 5 4 . 3 + x 4 ( 3 7 / 2 ) D 4 7 6 . 0 + x 4 ( 3 3 / 2+ ) D 4 7 7 . 0 + x 4 ( 3 3 / 2+ ) D 4 7 7 . 2 + x 5 ( 4 1 / 2 ) D 4 7 7 . 6 + x 4 D 4 8 8 . 8 + x # 7 ( 3 5 / 2 -) D 5 0 6 . 1 + x 5 ( 4 1 / 2 ) D 5 1 2 . 4 + x 5 ( 4 1 / 2 ) D Continued on next page (footnotes at end of table) 4 0 1 19 8 9 2 Pb 19 8 9 2 Pb 117 NUCLEAR DATA SHEETS Adopted Levels, Gammas (continued) 199 Pb Levels (continued) E(level) † J π ‡ XREF T 1/2 § Comments 5 2 2 . 6 + x 5 ( 4 1 / 2 ) D 5 2 8 . 4 + x 5 ( 4 3 / 2 ) D 5 3 0 . 6 + x # 7 ( 3 7 / 2 -) D 5 3 1 . 9 + x 5 ( 4 1 / 2 ) D 5 3 3 . 9 + x 5 ( 4 1 / 2 ) D 5 4 7 . 7 + x 4 ( 4 3 / 2 ) D 5 4 9 . 4 + x 6 D 5 5 5 . 2 + x 6 19 8 9 2 Pb 19 8 9 2 Pb 117 NUCLEAR DATA SHEETS Adopted Levels, Gammas (continued) 199 Pb Levels (continued) E(level) † XREF Comments 7 3 . 5+ z a 6 D 6 7 . 5+ z a 6 D 1 4 9 . 7 + z a 6 D 1 4 3 . 8 + z a 6 D 2 2 7 . 4 + z a 7 D 2 3 8 . 0 + z a 7 D 3 5 6 . 8 + z a 7 D 3 9 5 . 0 + z a 8 D 0 . 0+u b D E(level): u>4149+x, since the level decays into states between 3216+x and 4149+x. J π : possibly 45/2, since the bandhead feeds levels near 41/2. 4 2 . 9+u b 3 D 5 0 . 3+u b 4 D 6 3 . 3+u b 4 D 1 4 7 . 9 + u b 5 D 1 6 2 . 0 + u b 5 D 2 4 9 . 2 + u b 5 D 2 2 0 . 9 + u b 6 D 0+ v D E(level): v>5484+x from possible decay to 5484+x. 0 2 . 6+ v 3 D 3 8 . 8+ v 4 D