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Colloquium by Jonathan Feng - Fermilab Center for Particle ...

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DIRECT DETECTION<br />

• Can look <strong>for</strong> normal matter<br />

recoiling from DM collisions<br />

• WIMP properties<br />

– m ~ 100 GeV<br />

– velocity ~ 10 -3 c<br />

– Recoil energy ~ 1-100 keV<br />

• Typically focus on ultrasensitive<br />

detectors placed<br />

deep underground<br />

• But first, what range of<br />

interaction strengths are<br />

possible to investigate?<br />

23 Mar 11 <strong>Feng</strong> 17<br />

DM

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