Radiative Neutrino Mass Generation and Dark Matter - Institute for ...

More documents

Recommendations

Info

Dark MatterNature of DM· stable (or long lifetime)· non-relativistic particle· electrically neutral· no electromagnetic interaction (at tree level)DM candidateIn order to include DM we have to stabilize a particle.→ Z 2 parity· Neutralino, Lightest KK Particle, Right-handed neutrino,Gravitino, Axion etc..Takashi Toma (IPPP) Internal Seminar 7th June 2013 10 / 34
Dark MatterDM Thermal ProductionDM Thermal ProductionY = n/sDM number density is determined by decoupling from thermalbath in the universe.Number density follows the Boltzmann equation.dYdz = −ΓY eqHz[ ( YY eq) 2−1], z ≡ m T , Γ ≡ 〈σv〉n eq, Y ≡ n sapproximate solutionΩh 2 ≈ 1.04×109 [GeV −1 ]√g∗ m pl 〈σv〉= 0.12 (Planck)z = m/T↔ 〈σv〉 ≈ 3×10 −26 [cm 3 /s]= 3×10 −9 [GeV −2 ]Takashi Toma (IPPP) Internal Seminar 7th June 2013 11 / 34
Page 2: OutlineOutline1 Introduction2 Neutr
Page 7: Neutrino Mass GenerationExamples of
Page 12 and 13: Dark MatterNon-thermal ProductionNo
Page 14 and 15: Concrete ModelInteractions and Neut
Page 16 and 17: Concrete ModelConstraintsThe parame
Page 18 and 19: Concrete ModelConstraintsConstraint
Page 20 and 21: Concrete ModelCoannihilation of DMC
Page 22 and 23: Concrete ModelDirect Detection of D
Page 28 and 29: Extensions of Radiative Seesaw1. Su
Page 30 and 31: Extensions of Radiative Seesaw2. Fl
Page 32 and 33: SummarySummary1 The SM should be ex
Page 34: Thank you for your attention!Takash

Radiative Neutrino Mass Generation and Dark Matter - Institute for ...

Create successful ePaper yourself

Delete template?

Save as template?