247FM 251NO A DECAY (1.02 S) 2006HE27,2004HE28 15NDS 201503
247FM H TYP=FUL$AUT=C. D. NESARAJA$CIT=NDS 125, 395 (2015)$CUT=31-Mar-2014$
247FM c 2006He27: {+251}No produced by the {+206}Pb({+48}Ca,3n) reaction at
247FM2c E=4.80 MeV/nucleon {+48} beam at UNILAC accelerator at GSI, and from
247FM3c |a decay of {+255}Rf. Reaction products were separated from the
247FM4c primary beam by the SHIP velocity filter and implanted into a
247FM4c position-sensitive 16-strip PIPS detector.
247FM c Measured E|g, I|g, |g|g, |a-|g coin, ce, and lifetimes with a clover
247FM2c detector.
247FM c 2004He28: {+251}No was produced via {+206}Pb({+48}Ca,3n) reaction at
247FM2c E{-lab}=230.5 MeV {+48}Ca beam at UNILAC accelerator at GSI.
247FM3c Reaction products were separated from the primary beam by the SHIP
247FM4c velocity filter and implanted into a
247FM4c position-sensitive 16-strip PIPS detector for |a measurement.
247FM c Measured E|g, I|g, |g|g, |a-|g coin, ce, and lifetimes with a clover
247FM2c detector.
247FM cA E$Three types of uncertainties are combined in quadrature:
247FM2cA statistical uncertainty of 4-8 keV; systematic uncertainty of 15 keV
247FM3cA from calibration methods/standards; uncertainty of 3 keV due to
247FM4cA reproducibility of an |a peak energy.
247FM CA HF$R0(247FM)=1.4708 58, unweighted average of
247FM2CA r{-0}({+246}Fm)=1.465 7 and r{-0}({+248}Fm)=1.4765 19
247FM2CA 1998AK04) is used in calculations for hindrance factors.
251NO P 106 6 (1/2+) 1.02 S 3 8752 16
251NO cP E$Based upon difference in measured Q(|a) values for decays to the
251NO2cP 1/2+ isomer state in {+247}Fm from the ground and 1/2+ isomer state in
251NO3cP {+251}No (2006He27). Other: |?87 keV (2004He28)
251NO cP J$From Adopted Levels in {+251}No (2013Br09)
251NO cP T$From 2006He27. Other: 0.93 s {I6} (2004He28)
251NO cP QP$From 2012Wa38. Others: 8751 {I16} from E|a=8612 {I16} (2006He27)
251NO cP $Proposed configuration=1/2[631] (2006He27,2004He28)
247FM N 1
247FM cN BR$Assumed %|a=100; no |g-rays observed by 2006He27
247FM A 8625 18 2 AP 74 AP
247FM cA E$Tentatively assigned to the decay of the 1/2+ state in {+251}No
247FM2cA as its energy is higher than the g.s. to g.s. |a decay from {+251}No
247FM3cA to {+247}Fm. Statistical uncertainty=10 keV
247FM L 0.0 (7/2+) 31 S 1
247FM2 L %A=64 (2006He27)
247FM cL T$From 2006He27. Other: 29 s {I1} (2004He28)
247FM cL $Proposed configuration=7/2[624] (2006He27,2004He28)
247FM L 45 7 (1/2+) 5.1 S 2 M
247FM2 L %IT=12 2 (2006He27)
247FM cL E$From 2006He27 based on the mean value derived from the |a energy
247FM2cL in the |aK x-ray measurement and the difference in measured Q(|a)
247FM3cL values for decays from g.s. to g.s and g.s to isomeric states.
247FM cL T$From 2006He27. Other: 4.3 s {I4} (2004He28)
247FM cL $Proposed configuration=1/2[631] (2006He27,2004He28)
247FM A 8668 16 98 AP 1.1 AP
247FM cA E$Statistical uncertainty=4 keV. E|a=8665 {I8} (2004He28)