Heavy Sterile Neutrino in Dark Matter Searches

Table 2

Nuclides relevant for the search of the keV sterile neutrinos in the electron capture process. We give the life time , the -value, the electron binding energy for various captures, and the value of . For details see [66].

Nuclide		EC transition	(keV)	(keV)	(keV)	(keV)
	71 y		60.04	K: 50.2391	LI: 8.3756	9.76
	4570 y		2.555	MI: 2.0468	NI: 0.4163	0.51
	1.82 y		105.6	K: 65.3508	LI: 11.2707	40.2
	50 y		56.63	LI: 13.4185	MI: 3.1737	43.2
	52 ky		46	LI: 15.3467	MI: 3.7041	30.7
	13 My		50.6	LI: 15.3467	MI: 3.7041	35.3
	396 d		124.2	K: 115.6061	LI: 21.7574	8.6