Summary of Cosmological Connections Working Group Sabine Kraml

Summary of „Cosmological Connections“ Working Group Sabine Kraml CERN & ÖAW S. Kraml Summary of Cosmo WG / Vienna

Overview n Review of ILC Cosmology by W. Porod (plenary) n 4 talks in working group parallel session: ¨ A. Djouadi: Updated constraints on m. SUGRA and Dark Matter ¨ G. Belanger: Dark matter in the NMSSM ¨ S. K. : Dark matter with CP violation ¨ F. Richard: Dark Matter with (very) heavy SUSY scalars S. Kraml Summary of Cosmo WG / Vienna 2

Updated constraints on m. SUGRA and DM (Abdelhak Djouadi) n Improved computation of SUSY spectrum in Suspect 2. 34 Full 2 -loop RGEs also for scalars ¨ Improved corrections in Higgs potential, Yukawa couplings, etc ¨ n Improved experimental constaints New top mass value, mt=173 Ge. V ¨ b→sγ, g-2, etc ¨ WMAP constraint on relic density ¨ Update constraints on m. SUGRA parameter space - re-apperance of h pole - map parameter space onto physical masses - upper/lower bounds on masses S. Kraml Summary of Cosmo WG / Vienna 3

Updated constraints on m. SUGRA and DM (Abdelhak Djouadi) Bounds on Higgs and sparticle masses from scans S. Kraml Summary of Cosmo WG / Vienna 4

Dark matter in the NMSSM (Genevieve Belanger) n n Implemented the NMSSM in micr. OMEGAs Larger particle content: 3 neutral scalar + 2 pseudosclar Higgs bosons, ¨ 5 neutralinos (2 gauginos, 2 higgsinos, 1 singlino) ¨ n Phenomenology can be markedly different from MSSM, very light Higgs not excluded n Implications for relic density: ¨ More Higgs resonances, even for small tan β ¨ Annihilation into light Higgs (Higgs-to-Higgs decays) ¨ Singlino LSP S. Kraml Summary of Cosmo WG / Vienna 5

Dark matter in the NMSSM (Genevieve Belanger) n More resonances, even at low tanβ n Annihilation into light Higgses (scalar or pseudoscalar) n Singlino LSP: can be compatible with WMAP Higgs resonance LEP constraints λ= κ =0. 1, tanβ=5, Aλ=500, Aκ=0 S. Kraml Summary of Cosmo WG / Vienna 6

Dark matter with CP violation (SK) n n n n CP-violating (CPV) phases in the MSSM can have important influence on phenomenology → SUSY summary Holds also for <σv> for the neutralino relic density Interesting also in point of view of baryon asymmetry Implemented CPV MSSM in micr. OMEGAs Investigated phase dependence of neutralino annihilation through Higgs exchange, O(50%) effects Interferences! Work in progress for other scenarios S. Kraml Summary of Cosmo WG / Vienna 7

Dark matter with CP violation (SK) S. Kraml Summary of Cosmo WG / Vienna 8

Dark Matter with (very) heavy SUSY scalars (Francois Richard) n EDM, FCNC, EGRET, LEP. . heavy sfermions? → consider focus point, split SUSY Only –inos accessible at LHC/ILC n Evaluating n c 0 relic density with high precision needs knowledge of LSP decomposition (higgsino fraction) ¨ some control of the heavy masses ¨ n Use c+c- production with polarized beams to determine gaugino-higgsino mixing (σR, AFB) ¨ put limit on sneutrino mass (t-channel, σL) ¨ S. Kraml Summary of Cosmo WG / Vienna 9

Dark Matter with (very) heavy SUSY scalars (Francois Richard) Focus point • M 1 from c 1 , µ from c 2 • f. L, R + µ → M 2 to 5%, tanb>3 • f. L, R + s. L → m 0 > 3 Te. V 90%CL • DM known to 2% H annihilation • 2 nd c known, only h. Z prod • AFB, cosf. L-cosf. R, masses • tanb=5± 0. 8 • cc->h extremly sensitive to m(h)-2 m(LSP) mass difference • DM only to 40% (need m!) S. Kraml Summary of Cosmo WG / Vienna 10

Comments n Here: 2 cosmology sessions scheduled, only 1 session filled n Americal ILC workshops are FULL of cosmology ¨ Very active cosmology working groups ¨ Cosmological implications in almost every ¨ Selling argument for ILC n BSM talk Strong case for the synergy of ILC precision measurements and cosmology ¨ Constraints on models ¨ 85% DM: neutralino, gravitino, axion/axino, KK, . . . ? ¨ CPV, baryon asymmetry, EW phase transtion, etc. We should go for it! S. Kraml Summary of Cosmo WG / Vienna 11