PSI

DAFNE

Gas Mixture

170 MeV/c Pion

440 MeV/c Proton

127 MeV/c Kaon

clu/cm

78.0 ± 2.7

Hydrogen 100

e−/clu

1.73 ± 0.01

clu/cm

4.0 ± 0.7

12.1±1.1

31.1 ± 1.8

Helium 100

e−/clu

2.05 ± 0.02

2.03 ± 0.01

2.21 ± 0.01

clu/cm

40.2 ± 2.0

122.2 ± 3.4

Ar/i-C4 H10 90/10

e− clu

2.05 ± 0.01

2.04 ± 0.01