Lepton Flavour Violation Experiments

Table 4

The results of the SINDRUM II experiment in various searches for 𝜇⁻𝐴→𝑒⁻𝐴 conversion [115, 116].

Year	Target	Period (days)	Number of 𝜇^−	Capture probability	𝜇𝑒 efficiency	B.R. upper limit
1989	Titanium	25	5×10^12	0.85	0.13	4.3×10^−12
1992	Lead	10	2×10^12	0.97	0.06	4.6×10^−11
1993	Titanium	50	3×10^13	0.85	0.146	6.1×10^−13
2003	Au	81	4.4×10^13	0.97	22	7.1×10^−13