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Multi-Component DM System and Their Observation Prospects

Multi-Component DM System and Their Observation Prospects. arXiv:1207.3318. by Jisuke Kubo, Kanazawa University(KU). in collaboration with Mayumi Aoki (KU&MPI,Heidelberg) Michael Duerr (MPI,Heidelberg) Hiroshi Takano(KU). Our Universe. Do you believe there exists only one kind of DM?.

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Multi-Component DM System and Their Observation Prospects

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  1. Multi-Component DM System and Their Observation Prospects arXiv:1207.3318 by Jisuke Kubo, Kanazawa University(KU) in collaboration with Mayumi Aoki (KU&MPI,Heidelberg) Michael Duerr (MPI,Heidelberg) Hiroshi Takano(KU)

  2. Our Universe Do you believe there exists only one kind of DM? 3 Neutrinos as hot DM ~1.3%

  3. In fact there are many thoughts.

  4. How does a multi-component DM emerge? [1] Boehm, Fayet+Silk,03, two R parities in N=2 SUSY to explain gamma rays of two different scales from our galaxy. [2] Hur, Lee+Nasri,07, SUSY x U(1) to soften the mu problem where U(1) -> Z2. [3] Cao, Ma, Wukuda+Yuan,07, R x Z2 to relax the MSSM parameter space. etc etc

  5. Radiative Seesaw coupled with mSUGRRA Aoki, Okawa, Takano+Kubo,11 cold DM candidates (R x Z2) Neutralino Inert Higgsino Inert Higgs RHD sneutrino RHD neutrino LHD sneutrino We assume: DM=

  6. CMSSM Higgsino like gaugino mass Bino like soft scalar mass mSUGRA+Radiative seesaw =>R x Z2 Bino like LHC Aoki,Okawa,Takano+Kubo,2011

  7. PLAN 1 Non-standard annihilations and relic abundance 2 Radiative See Saw and DMs 3 Indirect search of DM at Neutrino Telescopes 4 Conclusion

  8. 1 Non-standard annihilations and relic abundance standard conversion semi-annihilation

  9. Coupled Boltzmann eqs. see also:D‘Eramo+Thaler, 11,Belanger,Kannike, Pukov+Raidal,12 XX standard conversion X semi-annihilation

  10. A fictive model of 3-comp. DM system standard conversion semi- annihilation

  11. standard: Temperature evolution only standard standard+ conversion

  12. standard: Temperature evolution only standard standard+ semi-annihilation

  13. Dependence on the non-standard annihilations

  14. Small size area zoomed. Conversion Semi-annihilation

  15. 2 Radiative See Saw and DMs Radiative Neutrino Mass Generation (Zee,‘80;86; Wolfenstein,80; Babu,88, etc) Radiative See Saw (Kraus, Nasri + Trodden,02; Ma,06; Aoki, Kanemura+ Seto,08; etc) Unbroken Z2: NR, Inert Higgs, DM

  16. Z2-odd One-loop See-Saw with an unbroken Z2 Ma, 06 Inert SU(2) doublet Higgs NR and eta are DM candidates.

  17. NR DM studied by Kraus, Nasri and Trodden,02; Kubo, Ma, Suematsu, ’06, etc CDM eta DM studied by Barbieri, Hall and Rychkov, '06; Lopez, Oliver and Tytgat,’06; Dolle and Su,’09 etc Promotion of Z2 to Z2 x Z2 by Aoki, Duerr, Kubo and Tankano, 12 Promotion to a three component DM system

  18. , Radiative see-saw (Ma)+ Majorana + Scalar with Conversion CDM candidates Semi-annihilation We assume :DM=

  19. Model with only was studied by Relic abundance Lopez, Oliver and Tytgat,’06 Only low mass and higher mass regimes are allowed.

  20. total WMAP

  21. Dependence of total WMAP

  22. Including all the constraints: Without and : Dolle and Su,’09 DD DS PB For LEP VEV

  23. With and : For

  24. 3 Indirect search of DMs at Neutrino Telescopes DM can be captured and annihilated in the Sun producing neutrinos that escape from the Sun DM diffuse DM DM

  25. Change of the DM number: 2 Fixed point at C=CA N =>equilibrium => maxi. rate 2X annihilation rate Capture rate Annihilation rate rate Only diffuse in the MSSM. N time normalized to

  26. Three component DM Semi-annihilation monochromatic Time Evolution of the numbers of DM in the Sun

  27. Time evolution diffuse fixed point monochromatic Annihilation rates Input: etc

  28. /sec Limits from Neutrino telescopes: IceCube(AMANDA) ANTARES SUPER-K /sec 0.05 events per year at Ice Cube

  29. 4 Conclusion Non-standard annihilations of DM can be very important, not only in calculating the relic abundance of DM, but also in indirect observation of DM. Especially, an observation of monochromatic neutrinos from the Sun may indicate multi-component DM in the Universe.

  30. THANK YOU VERY MUCH.

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