The CP-violating inert-doublet model - Scalars 2011

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Direct/indirect detection? • Interacts very weakly with ordinary matter • No strong (nuclear) interactions • Might be local enhancement near solar system • Ordinary particles might be scattered, recoil (CDMS-II) • Might annihilate in sun, look for photons/positrons • Might annihilate in space, Milky Way,... PAMELA, ATIC, Fermi-LAT,...
Scalar DM • “Inert (Scalar) Doublet Model”, Barbieri et al, 2006 Extend SM with additional scalar <strong>doublet</strong>, unbroken Z2 symmetry makes lightest “odd” particle stable. No vev, no direct coupling to SM matter. 2HDM Unbroken Z2: Coupling to non-<strong>inert</strong> Higgs
Page 1 and 2: Scalar dark matter work with Bohdan
Page 3 and 4: Dark Matter Astrophysical evidence:
Page 5 and 6: footnote: scales 1 light year ≈ (
Page 7 and 8: Ambition: •Problem at scales of 1
Page 9 and 10: The Big Picture 10 -40 cm 2 mass cr
Page 11: Simple estimate MPl Density of dark
Page 15 and 16: Motivation (Barbieri et al) May all
Page 18 and 19: Allowed regions LEP (PDG) LEP, Lund
Page 20 and 21: (standard) Coupling: (most general)
Page 22 and 23: “Dark democracy”
Page 24 and 25: Positivity Define: Plus additional
Page 26 and 27: Annihilation in the Early Universe
Page 28 and 29: Allowed regions in MS IDM LOW MEDIU
Page 30 and 31: Light DM: coupling to Higgs, can no
Page 32 and 33: forbidden, coannihilation too fast
Page 34 and 35: Allowed regions in MS, M1 3 10 Allo
Page 36 and 37: Allowed regions High region: Allowe
Page 38 and 39: CP violation Measured in terms of i
Page 40 and 41: CP violation: electron edm Unit: (~
Page 42 and 43: Direct detection S nucleus ionizes
Page 44 and 45: Compare CDMS-II and XENON100 ] 2 [
Page 46 and 47: Md charged abundance scalars in tha
Page 48 and 49: Cross sections pp +, -, j M s=75 [

The CP-violating inert-doublet model - Scalars 2011

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