Table 1 Experimental results for 63Ge, 64,65As and 66,67Se nuclei

From: Mass measurements show slowdown of rapid proton capture process at waiting-point nucleus 64Ge

Atom

T1/2 (ms)

Events

MEIMS (keV)

MEAME’20 (keV)

ΔME (keV)

Sp (keV)

63Ge

153.6(1.1)

279

−46,978(15)

−46,921(37)

−57(40)

2,280(15)

64As

69.0(1.4)

6

−39,710(110)

−39,530(200)#

−180(230)#

21(111)

65As

130.3(0.6)

33

−46,806(42)

−46,937(85)

131(95)

–221(42)

66Se

54(4)

20

−41,982(61)

−41,660(200)#

−320(210)#

2,465(74)

67Se

133(4)

174

−46,549(20)

−46,580(67)

31(70)

1,813(21)

  1. The following data are obtained from this work: the number of measured ions (Events), mass excess values (MEIMS) and proton separation energies (Sp). The literature half-lives (T1/2) are from the NUBASE’20 (ref. 20). ΔME (MEIMS – MEAME’20) values are the differences from literature mass values (MEAME’20) taken from AME2036). The symbol # indicates the extrapolated values in AME’20 (refs. 20,36).
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