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Supernova Detection

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ν+p elastic signal( ν+p→ ν+p) at liq. Scintillator<br />

detectors Beacom, Farr, and Vogel, PRD66, 033001(2002)<br />

Expected spectrum<br />

Sensitivity of temperature<br />

measurement<br />

ν e<br />

ν e<br />

ν µ<br />

ν µ<br />

ν τ<br />

ν τ<br />

Solid: s um of all<br />

~300 events/kt above 200keV<br />

~150 events/kt above 500keV<br />

Determine original ν µ , ν µ , ν τ , ν τ temperature<br />

with ~10% accuracy.<br />

(free from neutrino oscillation.)<br />

Current Borexino threshold: 200keV<br />

Current KamLAND threshold: 600~700keV(will be lowered after 2008 distillation.)

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