50CR 50MN EC DECAY (1.75 M) 1972RA14,2013SU07 19NDS 201906
50CR H TYP=FUL$AUT=Jun Chen and Balraj Singh$CIT=NDS 157, 1 (2019)$
50CR2 H CUT=15-Apr-2019$
50CR c 1972Ra14: {+50}Mn source was produced in {+50}Cr(p,n) reaction at ORNL.
50CR2c Measured E|g, I|g with Ge(Li) detectors. Deduced levels, J, |p, parent
50CR3c T{-1/2}.
50CR c 2013Su07: {+50}Mn produced in Ni({+58}Ni),X) reaction.
50CR2c {+58}Ni primary beam at E=68.6 MeV/nucleon provided by the Heavy Ion
50CR3c Research Facility in Lanzhou (HIRFL). Target=147 |mg/cm{+2} Ni at the
50CR4c Radioactive Ion Beam Line in Lanzhou (RIBLL). Measured |b-delayed
50CR5c protons, (proton)|g-coin, E|g, I|g, time-of-flight, energy loss,
50CR6c T{-1/2} using two plastic scintillator films, a thick silicon detector,
50CR7c a double-sided silicon strip detector (DSSSD) and five segmented clover
50CR8c detectors.
50CR c 1974FiZI (conference paper): measured T{-1/2}
50CR c Evaluators' note: 1976Au07 and 1984Al29 assigned states at 3595, 3875,
50CR3c and 3898 and associated gammas observed from these states by 1972Ra14
50CR4c in (p,p'|g) experiment, but not in |e,|b{++} decay. The evaluators
50CR5c consider this decay scheme as incomplete due to large number of
50CR6c possible states above 3.8 MeV which could be fed.
50CR c All data are from 1972Ra14, unless otherwise stated.
50CR cE $Coincidences shown on drawing are from 1962Su10.
50CR cG $Coincidences shown on drawing are from 1962Su10.
50CR cG E,RI$From 1972Ra14. All the gamma rays are also reported by 2013Su07
50CR cG M,MR,CC$From the Adopted Gammas.
50CR cG E(A)$Possible but unobserved transition.
50CR cG E(B)$Also observed by 1973Mc11 (|DE{-|g}=2 keV).
50CR cG RI(D)$From intensity balancing at the 783 state. 103 {i4} measured
50CR2cG (corrected for small contribution from {+116}In 1097|g).
50CR cG RI(E)$Corrected for small contribution from 1434.2+|g{+|+} summing.
50CR cL E$From E|g data. Level scheme in 2013Su07 is the same as in 1972Ra14
50CR cL J$From the Adopted Levels.
50MN P 225.28 9 5+ 1.75 M 3 7634.48 7
50MN cP E,J$From {+50}Mn Adopted Levels
50MN cP T$weighted average of 1.74 min {I10} (2013Su07, decay curve for
50MN2cP |g-spectrum gated by |b rays and |DE-tof); 1.76 min {i3} (1972Ra14,
50MN4cP decay curves for 783|g and 1098|g, 1 h counting period); 1.72 min {i4}
50MN3cP (1962Su10, |b{++} decay curve). The same value is adopted in Adopted
50MN4cP Levels of {+50}Mn
50MN cP QP$From 2017Wa10
50CR N 1.0 1 1
50CR cN NR$From I|g=100 for 783|g. Since J=5+ for {+50m}Mn, and J|p=4,5,6 for
50CR2cN levels in {+50}Cr above the 783 level fed in {+50m}Mn |b{++} decay,
50CR3cN the 783|g is probably the only g.s. transition. There can be no |b{++}
50CR4cN branch to the {+50}Cr g.s.
50CR PN 4
50CR G 1793.5 6 0.5 1 ?
50CR G 2404.4 8 0.16 5 ?
50CR L 0.0 0+
50CR L 783.3 1 2+
50CR G 783.3 1 100 2 E2 BC
50CR cG $E|g=783, I|g=100 {I5} (2013Su07)
50CR L 1881.3 2 4+
50CR G 1098.0 2 98.5 23 E2 BC
50CRF G FLAG=D
50CR cG $E|g=1098, I|g=97 {I5} (2013Su07)
50CR L 3163.9 4 6+
50CR E 8.0 230.047 13 6.0 2 8.0 23
50CRS E EAV=1672 4$CK=0.00522 3$CL=0.000543 3$CM+=9.42E-5 6
50CR G 1282.4 3 33 2 E2 BC
50CR cG $E|g=1282, I|g=31 {I2} (2013Su07)
50CR L 3324.6 3 4+
50CR E 69 5 0.46 3 5.0 1 69 5 ?
50CRS E EAV=1595 4$CK=0.00596 4$CL=0.000621 4$CM+=0.0001075 7
50CR G 161 2 LE[E2] 0.0674 A ?
50CRS G KC=0.0596$LC=0.00583
50CR G 1443.3 2 69 5 (M1(+E2)) -0.02 +16-52 BC
50CR cG $E|g=1443, I|g=61 {I3} (2013Su07)
50CR G 2541 1 LE A ?
50CR L 3825.5 4 (6)+
50CR E 28.5 120.304 13 5.03 2 28.8 12
50CRS E EAV=1355 4$CK=0.00942 7$CL=0.000980 7$CM+=0.00017
50CR G 661.5 3 25 1 BC
50CR cG $E|g=661, I|g=27 {I2} (2013Su07)
50CR G 1944.5 5 3.8 5 E
50CR cG $E|g=1944, I|g=3.8 {I6} (2013Su07)
50CR G 3042 2 LE A ?
50CR cG E$(6)+ to 2+ transition is highly unlikely, |g not included in Adopted
50CR2cG Levels, Gammas dataset. This |g may correspond to 3045|g assigned to
50CR3cG {+50}Mn decay by 1994Ha43, and placed from a 3827,(0+) level