Light neutralino dark matter

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Liu and SS, to appear Outline Introduction/Motiation Light neutralino dark matter A1 /H1

1 Light Neutralino Dark Matter Shufang Su U. of Arizona Mitchell Workshop Texas A&M May 15, 2014 S. Su T. Han, Z. Liu and SS, to appear Outline Introduction/Motiation Light neutralino dark matter A1 /H1 funnel region sbottom coannihilation stau coannihilation Direct and indirect detections LHC obserables Nearly degenerate sfermion signals at the ILC Conclusion S. Su 2

2 Dark Matter Dark Matter S. Su 3 Dark Matter Dark Matter S. Su 3

3 Dark Matter Dark Matter S. Su 3 Dark Matter Dark Matter S. Su 3

4 Dark Matter Dark Matter S. Su 3 WIMP Relic density M WIMP < g TeV Connection of WIMP dark matter to TeV scale new physics DM mass, coupling, relic density: model dependent S. Su 4

5 WIMP Relic density M WIMP < g TeV Connection of WIMP dark matter to TeV scale new physics DM mass, coupling, relic density: model dependent How light a WIMP dark matter can be? presere WIMP DM properties satisfy current experimental constraints S. Su 4 Light Dark Matter Direct detection B. AAAS 2014 Galactic center γ ray excess Daylan et. al S. Su 5

6 Complementarity consistent obserations among all approaches indirect detection relic density collider searches direct detection S. Su 6 Complementarity consistent obserations among all approaches indir ire rect det relic tectio co ion ollide er densit nsity yirect se ea arche es detection S. Su 6

7 Complementarity consistent obserations among all approaches DM DM indir ire rect det relic tectio co ion ollide er densit nsity yirect se ea arche es detection SM SM S. Su 6 Neutralino Dark MSSM Gauginos and Higgsinos ~ ~ Neutral ones: Bino, Wino, Hu 0, Hd 0 ~ charged ones: Winos, Hu + ~, Hd Neutralinos and charginos Parameters: M1, M2, μ, tanβ MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S S. Su 7

8 Neutralino Dark MSSM Gauginos and Higgsinos ~ ~ Neutral ones: Bino, Wino, Hu 0, Hd 0 ~ charged ones: Winos, Hu + ~, Hd Parameters: M1, M2, μ, tanβ Neutralinos and charginos MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S S. Su 7 Neutralino Dark MSSM Gauginos and Higgsinos ~ ~ Neutral ones: Bino, Wino, Hu 0, Hd 0 ~ charged ones: Winos, Hu + ~, Hd Neutralinos and charginos Parameters: M1, M2, μ, tanβ MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S S. Su 7

9 Neutralino Dark MSSM Gauginos and Higgsinos ~ ~ Neutral ones: Bino, Wino, Hu 0, Hd 0 ~ charged ones: Winos, Hu + ~, Hd Parameters: M1, M2, μ, tanβ Neutralinos and charginos MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S S. Su 7 Neutralino Dark MSSM Gauginos and Higgsinos ~ ~ Neutral ones: Bino, Wino, Hu 0, Hd 0 ~ charged ones: Winos, Hu + ~, Hd Neutralinos and charginos Parameters: M1, M2, μ, tanβ MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S S. Su 7

10 Dark Matter in MSSM (pb) σ p SI XENON 1T DAMA CoGeNT CRESST M1 CRESST M2 XENON 100 LUX lightest neutralino LSP in MSSM as good dark matter candidate m χ1 0 (GeV) TEXONO Han, Liu and Natarajan, S. Su 8 Dark Matter in MSSM (pb) σ p SI lightest neutralino LSP in MSSM as good dark matter candidate XENON 1T DAMA CoGeNT CRESST M1 CRESST M2 XENON 100 LUX Zfunnel m χ1 0 (GeV) TEXONO Han, Liu and Natarajan, S. Su 8

11 Dark Matter in MSSM (pb) σ p SI XENON 1T DAMA CoGeNT CRESST M1 CRESST M2 XENON 100 LUX lightest neutralino LSP in MSSM as good dark matter candidate Zfunnel hfunnel m χ1 0 (GeV) TEXONO Han, Liu and Natarajan, S. Su 8 Dark Matter in MSSM (pb) σ p SI lightest neutralino LSP in MSSM as good dark matter candidate XENON 1T DAMA CoGeNT CRESST M1 CRESST M2 XENON 100 LUX Zfunnel hfunnel m χ1 0 (GeV) TEXONO H/Afunnel Han, Liu and Natarajan, S. Su 8

12 Dark Matter in MSSM (pb) σ p SI XENON 1T DAMA CoGeNT CRESST M1 CRESST M2 XENON 100 LUX Zfunnel lightest neutralino LSP in MSSM as good dark matter candidate hfunnel m χ1 0 (GeV) TEXONO sfermioncoann H/Afunnel Han, Liu and Natarajan, S. Su 8 Dark Matter in MSSM (pb) σ p SI XENON 1T DAMA CoGeNT CRESST M1 CRESST M2 XENON 100 LUX lightest neutralino LSP in MSSM as good dark matter candidate Zfunnel hfunnel H/Afunnel blindspots m χ1 0 (GeV) TEXONO sfermioncoann Han, Liu and Natarajan, S. Su 8

13 Dark Matter in MSSM (pb) σ p SI XENON 1T DAMA CoGeNT CRESST M1 CRESST M2 XENON 100 LUX lightest neutralino LSP in MSSM as good dark matter candidate Zfunnel hfunnel H/Afunnel blindspots m χ1 0 (GeV) TEXONO sfermioncoann Han, Liu and Natarajan, S. Su 8 Binolike with Higgsino component Dark Matter in MSSM (pb) σ p SI lightest neutralino LSP in MSSM as good dark matter candidate DAMA CoGeNT TEXONO CRESST M1 CRESST M2 XENON 100 LUX XENON 1T Zfunnel hfunnel H/Afunnel blindspots m χ1 0 (GeV) sfermioncoann Han, Liu and Natarajan, S. Su 8 Binolike with Higgsino component

Dark Matter in MSSM (pb) σ p SI 10 3 10 4 10 5 10 6 10 7 10 8 10 9 10 10 10 11 10 12 10 13 lightest neutralino LSP in MSSM as good dark matter candidate DAMA CoGeNT TEXONO CRESST M1 CRESST M2 Low

14 Dark Matter in MSSM (pb) σ p SI lightest neutralino LSP in MSSM as good dark matter candidate DAMA CoGeNT TEXONO CRESST M1 CRESST M2 Low mass region XENON 100 (240 GeV) not Wino/Higgsino LUX hard to obtain fast enough annihilation need help from XENON 1T other particles Zfunnel m χ1 0 (GeV) sfermioncoann Han, Liu and Natarajan, S. Su 8 Light Neutralino NMSSM Draper et. al., Arbey et. al., ,... Coann Funnel Models DM (< 40 GeV) Annihilation MSSM & NMSSM Bino/Singlino χ 0 1 χ0 1 f f; χ 0 f 1 Vf; f f ff NMSSM Singlino/Bino χ 0 1 χ0 1 a 1,h 1 SM Study properties of those solutions Direct and indirect detection Obserational aspects at colliders ia SMlike Higgs light Higgses light sfermion S. Su 9

15 NMSSM Higgs Sector Type II Two Higgs Doublet Model plus singlet S W NMSSM = Y u û c Ĥ u ˆQ + Yd ˆdc Ĥ d ˆQ + Ye ê c Ĥ d ˆL + λ ŜĤuĤd + 1 ( 3 κŝ3 V H,Soft = m 2 H u H uh u + m 2 H d H d H d + MS S λa λ (Ht T ɛh d )S + 1 ) 3 κa κs 3 + c.c. SSB H u = H+ u H 0 u u / 2 H d = H0 d H d d / 2 S s / 2 (μ = λ s / 2) 2 u + 2 d = 2 = (246GeV) 2 tan β = u / d after EWSB, 7 physical Higgses CPeen Higgses: H1, H2, H3 CPodd Higgs: A1, A2 Charged Higgses: H ± S. Su 10 NMSSM MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ S. Su 11

16 NMSSM MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ S. Su 11 NMSSM MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S S. Su 11

17 NMSSM MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S S. Su 11 NMSSM MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S S. Su 11

18 NMSSM MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S S. Su 11 NMSSM MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S S. Su 11

19 NMSSM MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S Binolike LSP N 11 1, N 15 0, N 13 m Zs W μ s β, N 14 m Zs W μ c β, S. Su 11 NMSSM MÑ 0 = M 1 0 g d 1 2 M 2 g 1 u 2 0 g d 2 2 g u μ λ u 0 λ d 2 κ λ μ χ 0 1 = N 11 B + N12 W 0 + N 13 H0 d + N 14 H0 u + N 15 S Binolike LSP N 11 1, N 15 0, N 13 m Zs W μ s β, N 14 m Zs W μ c β, Singlinolike LSP N 11 0, N 15 1 N 13 λ μ c β, N 14 λ μ s β S. Su 11

20 NMSSMTools4 Parameter Scan General Sbottom Stau H 1, A 1 funnel m Atree [0,3000] tan β [1,55] μ [100,500] A κ [0,1000] λ [0,1] [0.01,0.6] κ [0,1] either κ [2, 30]λ/(2μ) M 1 [0,500] or M 1 [2, 30], or both M Q3, M U3 [0,3000] A t [0,4000] M D3 [0,3000] [0,80] 3000 A b [0,4000] 0 M L3,M E3 [0,3000] 3000 [0,500] 3000 A τ [0,4000] 0 [0,2000] 0 S. Su 12 Parameter Scan NMSSMTools4 General Sbottom Stau H 1, A 1 funnel m Atree [0,3000] tan β [1,55] μ [100,500] A κ [0,1000] λ [0,1] [0.01,0.6] κ [0,1] either κ [2, 30]λ/(2μ) M 1 [0,500] or M 1 [2, 30], or both M Q3, M U3 [0,3000] A t [0,4000] M D3 [0,3000] [0,80] 3000 A b [0,4000] 0 M L3,M E3 [0,3000] 3000 [0,500] 3000 A τ [0,4000] 0 [0,2000] 0 S. Su 12

21 NMSSMTools4 Parameter Scan General Sbottom Stau H 1, A 1 funnel m Atree [0,3000] tan β [1,55] μ [100,500] A κ [0,1000] λ [0,1] [0.01,0.6] κ [0,1] either κ [2, 30]λ/(2μ) M 1 [0,500] or M 1 [2, 30], or both M Q3, M U3 [0,3000] A t [0,4000] M D3 [0,3000] [0,80] 3000 A b [0,4000] 0 M L3,M E3 [0,3000] 3000 [0,500] 3000 A τ [0,4000] 0 [0,2000] 0 S. Su 12 Parameter Scan NMSSMTools4 General Sbottom Stau H 1, A 1 funnel m Atree [0,3000] tan β [1,55] μ [100,500] A κ [0,1000] λ [0,1] [0.01,0.6] κ [0,1] either κ [2, 30]λ/(2μ) M 1 [0,500] or M 1 [2, 30], or both M Q3, M U3 [0,3000] A t [0,4000] M D3 [0,3000] [0,80] 3000 A b [0,4000] 0 M L3,M E3 [0,3000] 3000 [0,500] 3000 A τ [0,4000] 0 [0,2000] 0 S. Su 12

22 NMSSMTools4 Parameter Scan General Sbottom Stau H 1, A 1 funnel m Atree [0,3000] tan β [1,55] μ [100,500] A κ [0,1000] λ [0,1] [0.01,0.6] κ [0,1] either κ [2, 30]λ/(2μ) M 1 [0,500] or M 1 [2, 30], or both M Q3, M U3 [0,3000] A t [0,4000] M D3 [0,3000] [0,80] 3000 A b [0,4000] 0 M L3,M E3 [0,3000] 3000 [0,500] 3000 A τ [0,4000] 0 [0,2000] 0 S. Su 12 Experimental Constraints Theoretical constraints such as Vacuum stability. Collider Higgs search limits from the LEP, the Teatron and the LHC. LEP, Teatron and LHC constrains on searches of supersymmetric particles, such as charignos, leptons and squarks; 2σ window of the SMlike Higgs boson mass: GeV (including linearly added estimated theoretical uncertainties of ±2 GeV). 2σ window of the SMlike Higgs bosons cross sections for γγ, ZZ, W + W, τ + τ and b b different production modes. Z boson inisible width and hadronic width as in Eq. (2.11) and Eq. (2.12). Bphysics constrains, including b sγ, B s μ + μ, B χ s μ + μ and B + τ + ν τ, as well as Δm s,δm d, m ηb (1S) and Υ(1S) aγ, hγ. S. Su 13

23 Experimental Constraints Theoretical constraints such as Vacuum stability. Collider Higgs search limits from the LEP, the Teatron and the LHC. LEP, Teatron and LHC constrains on searches of supersymmetric particles, such as charignos, leptons and squarks; 2σ window of the SMlike Higgs boson mass: GeV (including linearly added estimated theoretical uncertainties of ±2 GeV). 2σ window of the SMlike Higgs bosons cross sections for γγ, ZZ, W + W, τ + τ and b b different production modes. Z boson inisible width and hadronic width as in Eq. (2.11) and Eq. (2.12). Bphysics constrains, including b sγ, B s μ + μ, B χ s μ + μ and B + τ + ν τ, as well as Δm s,δm d, m ηb (1S) and Υ(1S) aγ, hγ. S. Su 13 Constraints for Low Mass Light neutralino LSP: inisible Z decay with ΔΓ in < 2.0 MeV 1 Z χ 0 1 χ0 1 coupling, N 2 14 N 2 13 Bino LSP: μ > 140 GeV Singlino LSP: μ/λ > 540 GeV neutralino LSP neutralino LSP S. Su 14

sbottom: mostly righthanded stau: een mixture of left and righthanded sbottom stau S.

24 Constraints for Low Mass Light sfermion: total Z decay width Z f 1 f1 : g L f cos2 θ f + g R f sin2 θ f, ΔΓ tot < 4.7 MeV p g pp tan 2 θ min = g f f L/gR f. sbottom: mostly righthanded stau: een mixture of left and righthanded sbottom stau S. Su 15 Dark Matter Properties (0.001) < Ω χ 0 1 h 2 < 0.142, Relic density Direct detection funnel sbcoann S. Su 16 staucoann

25 A1 /H1 funnel DM Properties S. Su 17 DM Properties A1 /H1 funnel A1funnel S. Su 17

26 A1 /H1 funnel H1funnel DM Properties A1funnel S. Su 17 DM Properties A1 /H1 funnel H1funnel Zcontribution A1funnel S. Su 17

27 A1 /H1 funnel DM Properties H1funnel Zcontribution coannihilation A1funnel S. Su 17 DM Properties A1 /H1 funnel H1funnel Zcontribution coannihilation A1funnel sbcoann S. Su 17

28 A1 /H1 funnel DM Properties H1funnel Zcontribution staucoann coannihilation A1funnel sbcoann S. Su 17 Indirect Detection S. Su 18

29 Indirect Detection FermiLAT exclusion (NFW profile) S. Su 18 Indirect Detection FermiLAT exclusion (NFW profile) GeV γ ray excess with 35 GeV DM XX bb S. Su 18

30 SM Higgs Obseration of a SMlike Higgs poses strong constraints mixture from other Higgses new decay modes open: χ 0 1 χ0 1, A 1A 1, H 1 H 1, τ 1 + τ 1 and b 1 b 1 light sbottom/stau appears in Hgg, Hγγ S. Su 19 SM Higgs S. Su 20

31 SM Higgs S. Su 20 Higgs Portal Dark matter production ia Higgs portal H XX S. Su 21

32 Light A1/H1 Coupling and Decay: singlet like S. Su 22 Light A1/H1 Production: < 10% SM rate ggh bbh tth VBF VH S. Su 23

Light Sbottom Light sbottom with compressed spectrum: small Δm Δm > mb: prompt sbottom decay Δm < mb: prompt, displaced ertex, Rhadron,... depend on the flaor structure LEP limits f m min (GeV) Ref.

33 Light Sbottom Light sbottom with compressed spectrum: small Δm Δm > mb: prompt sbottom decay Δm < mb: prompt, displaced ertex, Rhadron,... depend on the flaor structure LEP limits f m min (GeV) Ref. Condition 76 DELPHI [50] b χ 0 b,allθ b, Δm>7GeV b 89 ALEPH [48] b χ 0 b,allθ b, Δm>10 GeV ATLAS [51, 52] b χ 0 1 b, simplified, m χ 0 1 < 60 GeV for m b > 100 GeV S. Su 24 ATLAS limits: 2b+MET,bbj+MET [GeV] 0 m χ Light Sbottom ~ Sbottom pair production, b 1 ATLAS 1 Ldt = 20.1 fb, All limits at 95% CL s=8 TeV b χ 0 1 Obsered limit (±1 σ 1 CDF 2.65 fb 1 D0 5.2 fb 1 ATLAS 2.05 fb, SUSY theory Expected limit (±1 σ exp ) s=7 TeV ) ~ b 1 0 b χ 1 forbidden bbjmet bbmet S. Su m [GeV] 25 b ~ 1

34 Light Sbottom recast ATLAS sbottom search results for light sbottom msb=20 s GeV, mx=14 GeV, prompt decay bbmet ISR jet + bb bbjmet SRA SRB Lepton eto /E T > 150 GeV > 250 GeV P T (j 1 ) > 130 GeV > 150 GeV P T (j 2 ) > 50 GeV > 30 GeV P T (j 3 ) eto if > 50 GeV > 30 GeV Δφ(/E T, j 1 ) > 2.5 b tagging tagged b jet j 1, j 2 j 2, j 3 Δφ min > 0.4 > 0.4 /E T /m eff (k) /E T /m eff (2) > 0.25 /E T /m eff (3) > 0.25 m bb > 200 GeV H T,3 < 50 GeV m CT 250 GeV 300 GeV 350 GeV 95% C.L. upper limit σ is (fb) σ sig (fb) S. Su 26 They ran a theoristsimulation and see 20GeV sbottom is excluded. Light Sbottom recast ATLAS sbottom search results for light sbottom msb=20 GeV, mx=14 GeV, prompt decay bbmet bbjmet SRA SRB Lepton eto /E T > 150 GeV > 250 GeV P T (j 1 ) > 130 GeV > 150 GeV P T (j 2 ) > 50 GeV > 30 GeV P T (j 3 ) eto if > 50 GeV > 30 GeV Δφ(/E T, j 1 ) > 2.5 b tagging Δm > mb (prompt taggedsb b jet decay): j 1, j 2 ruled out j 2, j 3????? Δφ min > 0.4 > 0.4 Δm < mb: depends on the decay life time /E T /m eff (k) /E T /m eff (2) > 0.25 /E T /m eff (3) > 0.25 m bb > 200 GeV H T,3 < 50 GeV m CT 250 GeV 300 GeV 350 GeV 95% C.L. upper limit σ is (fb) σ sig (fb) S. Su 26

35 τ LEP limit Light Stau 1 χ 1 b 81.9 DELPHI [50] Δm >15 GeV, all θ τ, τ>45 GeV ALEPH [53, 54] Z ll (acoplanar), righthanded, Δm >2 5GeV 35 ALEPH [53, 54] Z inisible, righthanded, all Δm ALEPH [53, 54] Zdecoupling, Δm >2 15 GeV LHC limit with stau from neutralino/chargino decay not applicable with large MT2 cut of GeV ττ(j) + MET search difficult with WW(j)+MET background. light stau difficult at LHC as well. S. Su 27 Light ILC bbγ+met, ττγ+met S. Su 28

36 Conclusion light neutralino dark matter (2 40 GeV) A1/H1 funnel sbcoann staucoann DM Bino/Singlino Bino Bino/Singlino light particle ma1/h1~2mx singletlike msb~mx Δm < mb relic direct detection indirect detection ia SM Higgs LHC x x ILC mstau~mx mstau>30 GeV S. Su 29

Natural Electroweak Symmetry Breaking in NMSSM and Higgs at 100 GeV

Natural Electroweak Symmetry Breaking in NMSSM and Higgs at 100 GeV Radovan Dermíšek Institute for Advanced Study, Princeton R.D. and J. F. Gunion, hep-ph/0502105 R.D. and J. F. Gunion, hep-ph/0510322