251ES 255MD A DECAY 1970Fi12,2000Ah02,2005He2723NDS 202305
251ES H TYP=ERR$AUT=C. Morse$DAT=4-Dec-2023$COM=Fixed malformed comment$
251ES H TYP=FUL$AUT=C. Morse$CIT=NDS 189, 111 (2023)$CUT=23-Sep-2022$
251ES cL E,J$From Adopted Levels, except for 513-keV level.
251ES c $ 2000Ah02 only places the 7326-keV |a in the level scheme. The
251ES2c remaining |a decays have been placed by the evaluator based on the
251ES3c similarity of the level energies deduced from the |a-decay energies
251ES4c to the level energies determined in the |e-decay and (|a,t) datasets.
251ES cA E,IA$From 2000Ah02, unless otherwise noted.
251ES cA HF$The nuclear radius parameter r{-0}({+251}Es)=1.4825 {I14} is
251ES2cA deduced from interpolation (or unweighted average) of radius
251ES3cA parameters of the adjacent even-even nuclides (2020Si16).
251ES CL BAND(A)$|p7/2+[633] band.
251ES CL BAND(B)$|p7/2-[514] band.
251ES c $ 2005He27: {+255}Md produced as grand-daughter of {+255}Lr (|e decay)
251ES2c produced in reaction: {+209}Bi({+48}Ca,2n) E=4.55-4.65 MeV/nucleon;
251ES3c and as daughter of {+255}No produced in reaction:
251ES4c {+208}Pb({+48}Ca,4n) E=4.45 MeV/nucleon. {+255}Lr decays by |e to
251ES5c {+255}No which further decays by |e decay to {+255}Md. Evaporation
251ES6c residues were separated from the primary beam by velocity SHIP at GSI
251ES7c facility. Measured (fragments)|a coin, |a|g coin, prompt and delayed
251ES8c |g rays, K-x rays. A Clover detector was used for |g rays.
255MD P 0 (7/2-) 27 M 2 7905.6 17
255MD cP T$From 1970Fi12.
255MD cP QP$From 2021Wa16
251ES N 1 0.07 1
251ES cN BR$From 1970Fi12.
251ES L 0 3/2-
251ES2 L CONF=|p3/2-[521]
251ES L 8.34 23 (7/2)+ A
251ES2 L CONF=|p7/2+[633]
251ES L 31.70 20 5/2-
251ES A 7752 8 1.0 2 7.7E3 20
251ES L 55.85 23 (9/2)+ A
251ES L 76.1 3 7/2-
251ES A 7714 8 1.0 2 5.6E3 15
251ES L 461.40 22 7/2- B
251ES2 L CONF=|p7/2-[514]
251ES G 405.35 21 75 5
251ES cG E$Weighted average of 405.5 {I3} keV (2000Ah02) and 405.2 {I3} keV
251ES2cG (2005He27).
251ES cG RI$Weighted average of 72.7 {I72} (normalized to the intensity of the
251ES2cG 453-keV transition in 2000Ah02) and 76 {I8} (2005He27).
251ES G 452.90 21 100
251ES cG E$Weighted average of 453.0 {I3} keV (2000Ah02) and 452.8 {I3} keV
251ES2cG (2005He27).
251ES A 7326 4 93 3 2.1 4
251ES cA E$Weighted average of 7327 {I4} keV (2000Ah02) and 7313 {I15} keV
251ES2cA (2005He27).
251ES L 513 6 (9/2-) B ?
251ES cL E$From |DE{-|a} assuming that the 7274-keV |a-decay populates the
251ES2cL 9/2{+-} member of the 7/2{+-}[514] band. This is rather different
251ES3cL than E(level)=523 {I2} keV from 250Cf(|a,t), and should be regarded
251ES4cL as tentative. Not included in Adopted Levels.
251ES A 7274 5 5.0 5 25 5