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

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HOW MODEL-INDEPENDENT IS THIS? Neutralinos need an efficient annihilation channel Co-annihilation region χ τ τ τ̃ Bulk region Degenerate χ and stau γ Light sfermions Focus point region Mixed Higgsino-Bino Neutralinos 23 Mar 11 <strong>Feng</strong> 26
23 Mar 11 THE SIGNIFICANCE OF 10 -44 CM 2 • The LHC is eliminating one process. If M 2 > M 1, no coannihilation, resonances, this fixes the neutralino’s coupling to Ws • But this also fixes the DM scattering through Higgs χ q h • Predictions collapse to a band χ q Aprile et al. (2010) (updated) <strong>Feng</strong> 27
Page 1 and 2: WIMP PARADIGM: CURRENT STATUS FNAL
Page 3 and 4: THE COSMIC CONNECTION, c. 1977 “O
Page 5 and 6: DARK MATTER Known DM properties •
Page 7 and 8: 23 Mar 11 THE WEAK MASS SCALE • F
Page 9 and 10: 23 Mar 11 THE WIMP MIRACLE 10-3 σ0
Page 11 and 12: LEP’S COSMOLOGICAL LEGACY Gauge H
Page 13 and 14: INDIRECT DETECTION Dark Matter anni
Page 15 and 16: ARE THESE DARK MATTER? • Energy s
Page 17 and 18: DIRECT DETECTION • Can look for n
Page 19 and 20: LOWER LIMIT ON DIRECT DETECTION •
Page 21 and 22: LOW MASS FRONTIER Collision rate sh
Page 23 and 24: SPIN-DEPENDENT SCATTERING 23 Mar 11
Page 25: CURRENT BOUNDS FOR SUSY Yellow: pre
Page 29 and 30: BEYOND WIMPS • Does the WIMP para
Page 31 and 32: FREEZE OUT WITH SUPERWIMPS WIMPs fr
Page 33 and 34: WARM SUPERWIMPS • SuperWIMPs are
Page 35 and 36: • In SUSY, however, there may be
Page 37: CONCLUSIONS • Particle Dark Matte

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