256DB    260BH A DECAY (35 MS)         2008NE01                  17NDS    201704
256DB  H TYP=FUL$AUT=BALRAJ SINGH$CIT=NDS 141, 327 (2017)$CUT=22-Mar-2017$
256DB c  2008Ne01: production of {+260}Bh in {+209}Bi({+52}Cr,n) reaction;
256DB2c  {+256}Db, {+252}Lr and {+248}Md through successive |a-decay chain, and
256DB3c  {+256}Rf and {+248}Fm through |e decays.
256DB4c  E({+52}Cr{+12+})=257.0 MeV beam provided by 88-Inch Cyclotron at
256DB5c  LBNL. The nuclei were analyzed using Berkeley Gas-Filled Separator.
256DB6c  Detectors: A focal plan Si strip detector and a Si-strip detector
256DB7c  array, with a resolution of FWHM=55 keV.
256DB8c  Eight correlated decay chains were detected, which are listed
256DB9c  in {+260}Bh Adopted Levels in the ENSDF database.
256DB c  The alpha-particle energies measured from the eight chains are:
256DB2c  10.24, 10.17, 10.17, 10.08, 10.19, 10.13 and 10.03 MeV. 2008Ne01
256DB3c  assign a group of alpha-particle energies between 10.13 and 10.19
256DB4c  MeV to the same transition with an average of 10.16 MeV, assigned
256DB5c  here as g.s. to g.s. alpha transition. The other three alpha energies
256DB6c  may be transitions to other states in {+256}Db, and left here as
256DB7c  as unplaced transitions
256DB cA E(A)$Observed only in one decay chain. This |a group may be a
256DB2cA transition to an excited state in {+256}Db
260BH  P 0                             35 MS     +19-9          10400     50
260BH cP E$The 35-ms activity is assumed to belong to g.s. of {+260}Bh
260BH cP T$From (implants)|a-correlated events (2008Ne01)
260BH cP QP$From 2017Wa10. Other: 10320 {I30}, from average E|a=10.16 MeV {I3}
260BH2cP (2008Ne01) for four |a decay events with E|a=10.17, 10.17, 10.19 and
260BH3cP 10.13 MeV
256DB  N                        1      AP
256DB cN BR$%|a|?100 for |a decay of {+260}Bh
256DB  A 10.03E3                                                            A
256DB  A 10.08E3                                                            A
256DB  A 10.24E3                                                            A
256DB  L 0                              1.6 S    +5-3
256DB2 L %A=70 11$ %EC=30 11$ %SF=?
256DB cL E$the 1.6-s activity is assumed to belong to g.s. of {+256}Db
256DB cL T$from Adopted Levels
256DB cL %A$from 2008Ne01, based on %|e=36 {I12} (2001He35), thus %|a=64 {I12},
256DB2cL and %|a obtained by 2008Ne01, which is not stated but probably is
256DB3cL 76% {I11}
256DB  A 10.16E3   3   100
256DB cA E$from average of four |a decay events with E|a=10.17, 10.17, 10.19
256DB2cA and 10.13 MeV (2008Ne01). This |a group is assumed to feed the g.s.
256DB3cA of {+256}Db
256DB cA HF$value of 53 is quoted by 2008Ne01, without the method used to
256DB2cA deduce this value is not given. Authors cite 1997Sm03 reference, but
256DB3cA this paper deals with theoretical |a-decay half-lives only for
256DB4cA even-even alpha emitters