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<strong>Supernova</strong> Relic Neutrinos<br />
Neutrino Flux (/cm2 /sec /MeV)<br />
10 6<br />
10 5<br />
10 4<br />
10 3<br />
10 2<br />
10<br />
1<br />
10 -1<br />
10 -2<br />
10 -3<br />
10 -4<br />
10 -5<br />
10 -6<br />
Reactor ν (ν e )<br />
Solar 8 B (ν e )<br />
Solar hep (ν e )<br />
Constant SN rate (Totani et al., 1996)<br />
Totani et al., 1997<br />
Hartmann, Woosley, 1997<br />
Malaney, 1997<br />
Kaplinghat et al., 2000<br />
Ando et al., 2005<br />
Lunardini, 2006<br />
Fukugita, Kawasaki, 2003(dashed)<br />
SRN predictions<br />
(ν e fluxes)<br />
Atmospheric ν e<br />
Neutrino Energy (MeV)<br />
Expected number SRN events<br />
0.8 -5.0 events/year/22.5kton<br />
(10-30MeV)<br />
0.3 -1.9 events/year/22.5kton<br />
(18-30MeV)<br />
Large target mass and high<br />
background reduction are<br />
necessary.<br />
10 7 0 10 20 30 40 50 60 70 80
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