Gauge-Higgs Dark Matter

Transcription

1 Toshifumi Yamashita (Nagoya University) 5 Mar. in preparation with N. Haba (Osaka Univ.) S. Matsumoto (Toyama Univ.) N. Okada (KEK)

2 Introduction Motivations for beyond the SM hierarchy problem dark matter dark energy inflation DM in gauge-higgs unification New DM candidate in general XD apply it to GHU SUSY Technicolor Extra dimension(s) ADD (large XD) RS (warped XD) GHU (TeV XD)

3 Plan Introduction New DM candidate Summary

4 New DM candidate What s the DM? dark (NR) matter (quasi) stable neutral, colorless massive, superweak coupling axion, gravitino, protecting symmetry by hand R-parity, T-parity, accidental KK-parity,

5 New DM candidate KK parity in a flat XD on not work in RS Boundary terms must respect the symmetry. Metric must respect the symmetry. there can be an accidental symmetry : parity around

6 New DM candidate Anti-periodic another possibility? fields in a general XD on N.Haba, S.Matsumoto, N.Okada and T.Y. in preparation Boundary terms must respect the symmetry. Fields may not be invariant! anti-periodic B.C. can be imposed, while the should be periodic. AP fields must appear in pairs. accidental Z2 periodic : even anti-periodic : odd

7 Plan Overview New DM candidate Summary

8 Review of GHU 5D theory gauge field D.B. Fairlie (1979) N.S. Manton (1979) compactification 4D theory with KK modes gauge field scalar field Higgs 5D gauge invariance protects the Higgs mass!! H.Hatanaka, T.Inami & C.S.Lim (1998)

9 warped GHU Problems in flat GHU are solved automatically. A lot of studies have been made. R. Contino, Y. Nomura and A. Pomarol (2003) K. Oda and A. Weiler (2005) K. Agashe, R. Contino and A. Pomarol (2005) Y. Hosotani, S. Noda, Y. Sakamura and S. Shimasaki (2006) Y. Sakamura and Y. Hosotani (2007) A. Medina, N. Shah and C. Wagner (2007) M. Carena, A. Medina, B. Panes, N. Shah and C. Wagner (2007) G. Panico, E. Ponton, J. Santiago and M. Serone (2008) N. Haba, S. Matsumoto, N. Okada and T.Y. (2008) Y. Hosotani, K. Oda, T. Ohnuma and Y. Sakamura (2008) M. Carena, A. Medina, N. Shah and C. Wagner (2009) The EW observables tend to get large corrections. small VEV Agashe & Contino (2005) AP fermions DM? Haba, Hosotani, Kawamura & T.Y. (2004)

10 N.Haba, S.Matsumoto, N.Okada and T.Y. in preparation DM in warped GHU The interactions of Higgs field are largely controlled by the gauge symmetry. model gauge & Higgs Those to the DM are related with its mass. B.C. boundary Higgs EW Higgs Hosotani, Oda, Ohnuma & Sakamura (2008) massless doublet scalar by radiative potential

11 N.Haba, S.Matsumoto, N.Okada and T.Y. in preparation DM in warped GHU The interactions of Higgs field are largely controlled by the gauge symmetry. Those to the DM are related with its mass. model gauge & Higgs B.C. boundary Higgs EW Higgs DM : AP fermion in Hosotani, Oda, Ohnuma & Sakamura (2008) SM fermions : assumed going well

12 Preliminary relic abundance parameters N.Haba, S.Matsumoto, N.Okada and T.Y. in preparation KK is heavy

13 Preliminary relic abundance parameters 120 N.Haba, S.Matsumoto, N.Okada and T.Y. in preparation WMAP5 + BAO + SN 100 KK is heavy

14 Preliminary relic abundance parameters 120 N.Haba, S.Matsumoto, N.Okada and T.Y. in preparation WMAP5 + BAO + SN 100 KK is heavy

15 Summary A new candidate of DM in general XD Anti-periodic fields appear in always in pairs. accidental Z2 the lightest one may be the DM. In the GHU, AP fermions often introduced. The Higgs sector is largely controlled by the gauge symmetry. A partial calculation is done. Direct detection is interesting.