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

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WARM SUPERWIMPS<br />

• SuperWIMPs are produced at “late”<br />

times with large velocity (0.1c – c)<br />

• Suppresses small scale structure,<br />

as determined <strong>by</strong> λ FS, Q<br />

• Warm DM with cold DM pedigree<br />

Dalcanton, Hogan (2000)<br />

Lin, Huang, Zhang, Brandenberger (2001)<br />

Sigurdson, Kamionkowski (2003)<br />

Profumo, Sigurdson, Ullio, Kamionkowski (2004)<br />

Kaplinghat (2005)<br />

Cembranos, <strong>Feng</strong>, Rajaraman, Takayama (2005)<br />

Strigari, Kaplinghat, Bullock (2006)<br />

Bringmann, Borzumati, Ullio (2006)<br />

Sterile ν<br />

Dodelson, Widrow (1993)<br />

SuperWIMP<br />

23 Mar 11 <strong>Feng</strong> 33<br />

Kaplinghat (2005)

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