The LHC and cosmology...Scalar gluon pair, sgluon ! t¯ 2e; (SS) 2b Yes 14.3 sgluon 350-800 GeV...

The LHC and CosmologyMathias Garny (CERN)

4.12.2014 Ferrara

Particle Physics and Cosmology

...

Collider exp.

Neutrino

exp.

+ ?

Baryonasymmetry

Dark Matter

...

LS 1 from 16th Feb 2013 to Dec 2014

13LHC Performance Workshop 2014 ConclusionsF. Bordry8th October 2014

PhysicsBeam commissioning

ShutdownPowering tests

F M A M J J A S O N D J F J FM A M J J A S O N D

2013 2014 2015

M A

LHC

SPS

PS

PS Booster

beam to beam

available for works

16th Feb. October 13th

LS 1 from 16th Feb. 2013 to Dec. 201419 months

from F. Boudry

The LHC timeline

The LHC timeline

L~7x1033

Pile-up~20-35

L=1.6x1034

Pile-up~30-45

L=2-3x1034

Pile-up~50-80 L=5x1034

Pile-up~ 130-200

L.Rossi

Higgs

) µSignal strength (

0 0.5 1 1.5 2

ATLAS Prelim.

-1Ldt = 4.5-4.7 fb∫ = 7 TeV s

-1Ldt = 20.3 fb∫ = 8 TeV s

= 125.36 GeVHm

arXiv:1408.7084

0.27-0.27+ = 1.17µ

γγ →H

0.11- 0.16+

0.23- 0.23+

arXiv:1408.5191

0.33-0.40+ = 1.44µ

4l→ ZZ* →H

0.11- 0.21+

0.31- 0.34+

0.20-0.22+ = 1.08µ

νlν l→ WW* →H

0.13- 0.16+

0.15- 0.16+

ATLAS-CONF-2014-060

arXiv:1409.6212

0.4-0.4+ = 0.5µ

b b→W,Z H

0.2- 0.2+

0.3- 0.3+

0.4-0.4+ = 1.4µ

ττ →H

0.3- 0.3+

0.3- 0.3+

ATLAS-CONF-2014-061

Total uncertaintyµ on σ1±

(stat.)σ

)theorysys inc.(σ

Higgs couplings projectionHiggs couplings fit at HL-LHC

CMS ProjectionAssumption NO invisible/undetectable contribution to H:

- Scenario 1: system./Theory err. unchanged w.r.t. current analysis- Scenario 2: systematics scaled by 1/sqrt(L), theory errors scaled by ½ loop at 2-5% level down-type fermion couplings at 2-10% level direct top coupling at 4-8% level gg loop at 3-8% level

CMS

Supersymmetry?

Model e, µ, τ, γ Jets Emiss

T

∫L dt[fb−1] Mass limit Reference

Inclu

siv

eS

ea

rch

es

3rd

ge

n.

gm

ed

.3rd

ge

n.

sq

ua

rks

dir

ect

pro

du

ctio

nE

Wd

ire

ct

Lo

ng

-liv

ed

pa

rtic

les

RP

VO

the

r

MSUGRA/CMSSM 0 2-6 jets Yes 20.3 m(q)=m(g) 1405.78751.7 TeVq, g

MSUGRA/CMSSM 1 e, µ 3-6 jets Yes 20.3 any m(q) ATLAS-CONF-2013-0621.2 TeVg

MSUGRA/CMSSM 0 7-10 jets Yes 20.3 any m(q) 1308.18411.1 TeVg

qq, q→qχ01 0 2-6 jets Yes 20.3 m(χ

01)=0 GeV, m(1st gen. q)=m(2nd gen. q) 1405.7875850 GeVq

gg, g→qqχ01 0 2-6 jets Yes 20.3 m(χ

01)=0 GeV 1405.78751.33 TeVg

gg, g→qqχ±1→qqW±χ01 1 e, µ 3-6 jets Yes 20.3 m(χ

01)<200 GeV, m(χ

±)=0.5(m(χ

01)+m(g)) ATLAS-CONF-2013-0621.18 TeVg

gg, g→qq(ℓℓ/ℓν/νν)χ01

2 e, µ 0-3 jets - 20.3 m(χ01)=0 GeV ATLAS-CONF-2013-0891.12 TeVg

GMSB (ℓ NLSP) 2 e, µ 2-4 jets Yes 4.7 tanβ<15 1208.46881.24 TeVg

GMSB (ℓ NLSP) 1-2 τ + 0-1 ℓ 0-2 jets Yes 20.3 tanβ >20 1407.06031.6 TeVg

GGM (bino NLSP) 2 γ - Yes 20.3 m(χ01)>50 GeV ATLAS-CONF-2014-0011.28 TeVg

GGM (wino NLSP) 1 e, µ + γ - Yes 4.8 m(χ01)>50 GeV ATLAS-CONF-2012-144619 GeVg

GGM (higgsino-bino NLSP) γ 1 b Yes 4.8 m(χ01)>220 GeV 1211.1167900 GeVg

GGM (higgsino NLSP) 2 e, µ (Z) 0-3 jets Yes 5.8 m(NLSP)>200 GeV ATLAS-CONF-2012-152690 GeVg

Gravitino LSP 0 mono-jet Yes 10.5 m(G)>10−4 eV ATLAS-CONF-2012-147645 GeVF1/2 scale

g→bbχ01 0 3 b Yes 20.1 m(χ

01)<400 GeV 1407.06001.25 TeVg

g→ttχ01 0 7-10 jets Yes 20.3 m(χ

01) <350 GeV 1308.18411.1 TeVg

g→ttχ01

0-1 e, µ 3 b Yes 20.1 m(χ01)<400 GeV 1407.06001.34 TeVg

g→btχ+1 0-1 e, µ 3 b Yes 20.1 m(χ

01)<300 GeV 1407.06001.3 TeVg

b1b1, b1→bχ01 0 2 b Yes 20.1 m(χ

01)<90 GeV 1308.2631100-620 GeVb1

b1b1, b1→tχ±1 2 e, µ (SS) 0-3 b Yes 20.3 m(χ

±1 )=2 m(χ

01) 1404.2500275-440 GeVb1

t1 t1(light), t1→bχ±1 1-2 e, µ 1-2 b Yes 4.7 m(χ

01)=55 GeV 1208.4305, 1209.2102110-167 GeVt1

t1 t1(light), t1→Wbχ01

2 e, µ 0-2 jets Yes 20.3 m(χ01) =m(t1)-m(W)-50 GeV, m(t1)<<m(χ

±1 ) 1403.4853130-210 GeVt1

t1 t1(medium), t1→tχ01

2 e, µ 2 jets Yes 20.3 m(χ01)=1 GeV 1403.4853215-530 GeVt1

t1 t1(medium), t1→bχ±1 0 2 b Yes 20.1 m(χ

01)<200 GeV, m(χ

±1 )-m(χ

01)=5 GeV 1308.2631150-580 GeVt1

t1 t1(heavy), t1→tχ01

1 e, µ 1 b Yes 20 m(χ01)=0 GeV 1407.0583210-640 GeVt1

t1 t1(heavy), t1→tχ01 0 2 b Yes 20.1 m(χ

01)=0 GeV 1406.1122260-640 GeVt1

t1 t1, t1→cχ01 0 mono-jet/c-tag Yes 20.3 m(t1)-m(χ

01 )<85 GeV 1407.060890-240 GeVt1

t1 t1(natural GMSB) 2 e, µ (Z) 1 b Yes 20.3 m(χ01)>150 GeV 1403.5222150-580 GeVt1

t2 t2, t2→t1 + Z 3 e, µ (Z) 1 b Yes 20.3 m(χ01)<200 GeV 1403.5222290-600 GeVt2

ℓL,R ℓL,R, ℓ→ℓχ01 2 e, µ 0 Yes 20.3 m(χ01)=0 GeV 1403.529490-325 GeVℓ

χ+1χ−1 , χ

+1→ℓν(ℓν) 2 e, µ 0 Yes 20.3 m(χ

01)=0 GeV, m(ℓ, ν)=0.5(m(χ

±1 )+m(χ

01)) 1403.5294140-465 GeVχ±

1

χ+1χ−1 , χ

+1→τν(τν) 2 τ - Yes 20.3 m(χ

01)=0 GeV, m(τ, ν)=0.5(m(χ

±1 )+m(χ

01)) 1407.0350100-350 GeVχ±

1

χ±1χ02→ℓLνℓLℓ(νν), ℓνℓLℓ(νν) 3 e, µ 0 Yes 20.3 m(χ

±1 )=m(χ

02), m(χ

01)=0, m(ℓ, ν)=0.5(m(χ

±1 )+m(χ

01)) 1402.7029700 GeVχ±

1, χ

0

2

χ±1χ02→Wχ

01Zχ

01

2-3 e, µ 0 Yes 20.3 m(χ±1 )=m(χ

02), m(χ

01)=0, sleptons decoupled 1403.5294, 1402.7029420 GeVχ±

1 , χ0

2

χ±1χ02→Wχ

01h χ

01

1 e, µ 2 b Yes 20.3 m(χ±1 )=m(χ

02), m(χ

01)=0, sleptons decoupled ATLAS-CONF-2013-093285 GeVχ±

1, χ

0

2

χ02χ03, χ

02,3 →ℓRℓ 4 e, µ 0 Yes 20.3 m(χ

02)=m(χ

03), m(χ

01)=0, m(ℓ, ν)=0.5(m(χ

02)+m(χ

01)) 1405.5086620 GeVχ0

2,3

Direct χ+1χ−1 prod., long-lived χ

±1 Disapp. trk 1 jet Yes 20.3 m(χ

±1 )-m(χ

01)=160 MeV, τ(χ

±1 )=0.2 ns ATLAS-CONF-2013-069270 GeVχ±

1

Stable, stopped g R-hadron 0 1-5 jets Yes 27.9 m(χ01)=100 GeV, 10 µs<τ(g)<1000 s 1310.6584832 GeVg

GMSB, stable τ, χ01→τ(e, µ)+τ(e, µ) 1-2 µ - - 15.9 10<tanβ<50 ATLAS-CONF-2013-058475 GeVχ0

1

GMSB, χ01→γG, long-lived χ

01

2 γ - Yes 4.7 0.4<τ(χ01)<2 ns 1304.6310230 GeVχ0

1

qq, χ01→qqµ (RPV) 1 µ, displ. vtx - - 20.3 1.5 <cτ<156 mm, BR(µ)=1, m(χ

01)=108 GeV ATLAS-CONF-2013-0921.0 TeVq

LFV pp→ντ + X, ντ→e + µ 2 e, µ - - 4.6 λ′311

=0.10, λ132=0.05 1212.12721.61 TeVντLFV pp→ντ + X, ντ→e(µ) + τ 1 e, µ + τ - - 4.6 λ′

311=0.10, λ1(2)33=0.05 1212.12721.1 TeVντ

Bilinear RPV CMSSM 2 e, µ (SS) 0-3 b Yes 20.3 m(q)=m(g), cτLS P<1 mm 1404.25001.35 TeVq, g

χ+1χ−1 , χ

+1→Wχ

01, χ

01→eeνµ, eµνe 4 e, µ - Yes 20.3 m(χ

01)>0.2×m(χ

±1 ), λ121,0 1405.5086750 GeVχ±

1

χ+1χ−1 , χ

+1→Wχ

01, χ

01→ττνe, eτντ 3 e, µ + τ - Yes 20.3 m(χ

01)>0.2×m(χ

±1 ), λ133,0 1405.5086450 GeVχ±

1

g→qqq 0 6-7 jets - 20.3 BR(t)=BR(b)=BR(c)=0% ATLAS-CONF-2013-091916 GeVg

g→t1t, t1→bs 2 e, µ (SS) 0-3 b Yes 20.3 1404.250850 GeVg

Scalar gluon pair, sgluon→qq 0 4 jets - 4.6 incl. limit from 1110.2693 1210.4826100-287 GeVsgluon

Scalar gluon pair, sgluon→tt 2 e, µ (SS) 2 b Yes 14.3 ATLAS-CONF-2013-051350-800 GeVsgluon

WIMP interaction (D5, Dirac χ) 0 mono-jet Yes 10.5 m(χ)<80 GeV, limit of<687 GeV for D8 ATLAS-CONF-2012-147704 GeVM* scale

Mass scale [TeV]10−1 1√s = 7 TeV

full data

√s = 8 TeV

partial data

√s = 8 TeV

full data

ATLAS SUSY Searches* - 95% CL Lower LimitsStatus: ICHEP 2014

ATLAS Preliminary√s = 7, 8 TeV

*Only a selection of the available mass limits on new states or phenomena is shown. All limits quoted are observed minus 1σ theoretical signal cross section uncertainty.

Supersymmetry?

Gluino mass [GeV]

800 1000 1200 1400 1600 1800 2000 2200 2400

Sq

ua

rk m

ass [

Ge

V]

800

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800Squarkgluinoneutralino model

=8 TeVs, 1

L dt = 20.3 fb∫0lepton, 26jets

ATLAS

)expσ1 ±)=0 GeV Exp. limit (1

0χ∼m(

)theory

SUSYσ1 ±)=0 GeV Obs. limit (1

0χ∼m(

)=395 GeV Exp. limit1

0χ∼m(

)=395 GeV Obs. limit1

0χ∼m(

)=695 GeV Exp. limit1

0χ∼m(

)=695 GeV Obs. limit1

0χ∼m(

)=0 GeV Obs.1

0χ∼) m(17TeV (4.7fb

ATLAS 1405.7875 N. Craig

Supersymmetry?

[GeV]q~

m

200 300 400 500 600 700 800 900 1000 1100

[G

eV

]0

1χ∼

m

0

100

200

300

400

500

600

700

0

1χ∼ q →q

~ production; q

~q~

=8 TeVs, 1

L dt = 20.3 fb∫0 leptons, 26 jets

allXsec_ ATLAS )

theory

SUSYσ1 ±Observed limit (

)expσ1 ±Expected limit (

, 7 TeV)1Observed limit (4.7 fb

, 7 TeV)1Expected limit (4.7 fb

q~

1 nondegen.

’sq~

8 degenerate

ATLAS 1405.7875N. Craig

Supersymmetry?

[GeV]q~

m

100 150 200 250 300

[G

eV

]0 1χ∼

mq~

m

5

10

15

20

25

30

35

40

45

50

51.0

75.4

39.2

49.3

31.1

39.6

25.6

31.0

24.3

27.5

218 92 61.3

305 162 116

ATLAS = 8 TeV,s1

Ldt = 20.3 fb∫

)theo

σ 1 ±Observed limit (

)expσ 1 ±Expected limit (

Nu

mb

ers

giv

e 9

5%

CL

exclu

de

d c

ross s

ectio

n [

fb]

ATLAS 1405.7875

q

q χ

χ

γ

N. Craig

SM extrapolation

102 104 106 108 1010 1012 1014 1016 1018 1020

0.0

0.2

0.4

0.6

0.8

1.0

RGE scale Μ in GeV

SM

coupli

ngs

g1

g2

g3yt

Λyb

m in TeV0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4

-2×10-4

0

2×10-4

4×10-4

Φ Lmax

VeffΦ

L

max

4

2-loop EW threshold, 3-loop running Buttazzo, Degrassi, Giardino, Giudice, Sala, Salvio,

Strumia 1307.3536

SM vacuum instability

Buttazzo, Degrassi, Giardino, Giudice, Sala, Salvio, Strumia 1307.3536

SM vacuum instability

6 8 10

0 50 100 150 200

0

50

100

150

200

Higgs pole mass Mh in GeV

Top

pole

mas

sM

tin

GeV

LI =104GeV5

67

8910

1214

1619

Instability

Non

-pertu

rbativ

ity

Stability

Meta-sta

bility

107 108

109

1010

1011

1012

1013

1014

1016

120 122 124 126 128 130 132168

170

172

174

176

178

180

Higgs pole mass Mh in GeVT

op

pole

mas

sM

tin

GeV

1017

1018

1019

1,2,3 Σ

Instability

Stability

Meta-stability

Buttazzo, Degrassi, Giardino, Giudice, Sala, Salvio, Strumia 1307.3536

SM vacuum instability and inflation

I EW vacuum meta-stable (for best-fit mt ,mh)

I Higgs could end up in unstable region in some Hubble patches if

Hinf & V 1/4max ∼ 109 GeV

I Observation of (prim.) r would imply some kind of beyond-SM(unless top mass 2− 3σ below best fit)

I Ways around: small non-minimal coupling, . . .

109

1010

1011

1012

1013

1014

10-3

10-2

10-1

1

10

H GeV

ΞEWI: Stability

II: Instability

Vmax14> H

Vmax14> 5H

Vmax14> 10H

P ∼ exp(−8π2Vmax/3H2

)Fairbairn, Hogan 1403.6786, Hinf = 1014 GeV

Herranen, Murkkanen, Nurmi, Rajantie 1407.3141

SM vacuum instability and inflation

I EW vacuum meta-stable (for best-fit mt ,mh)

I Higgs could end up in unstable region in some Hubble patches if

Hinf & V 1/4max ∼ 109 GeV

I Observation of (prim.) r would imply some kind of beyond-SM(unless top mass 2− 3σ below best fit)

I Ways around: small non-minimal coupling, . . .

109

1010

1011

1012

1013

1014

10-3

10-2

10-1

1

10

H GeV

ΞEWI: Stability

II: Instability

Vmax14> H

Vmax14> 5H

Vmax14> 10H

P ∼ exp(−8π2Vmax/3H2

)Fairbairn, Hogan 1403.6786, Hinf = 1014 GeV Herranen, Murkkanen, Nurmi, Rajantie 1407.3141

Baryogenesis and the LHC

Collider exp.

+ ?

Baryonasymmetry

Baryon asymmetry

YP = 4nHe/nb

yDP = nD/nH ·105

0.25

0.26

YP Aver et al. (2012) Standard BBN

0.018 0.020 0.022 0.024 0.026ωb

2.2

2.6

3.0

3.4

y DP

Iocco et al. (2008)

Pettini & Cooke (2012)

Planck+WP+highL

ωb = Ωbh2 = η/(2.74 · 10−8)

Consistent value BBN (T ∼ keV) and CMB (T ∼ eV)

η =nb − nb

nγ=

(6.15± 0.15) · 10−10 WMAP9(6.04± 0.08) · 10−10 Planck

WMAP9 1212.5226, Planck 1303.5076

Baryogenesis (' 109 + 1 : 109 particles vs antiparticles)

I CP violation, B violation, deviation from equilibrium

Electroweak baryogenesis

I The baryon asymmetry could be generated during a first order phasetransition

I Electroweak phase transition in the SM is a crossover formH & 70GeV

from T. Konstandin

EW baryogenesis

I MSSM: need very light RH stops, practically excluded

[GeV]1t

~m

200 300 400 500 600 700

[GeV

]10 χ∼

m

0

50

100

150

200

250

300

350

400

450

500

1

0χ∼ t →1t~

1

0χ∼ t →1t~

1

0χ∼ t →1t~

1

0χ∼ W b →1t~

1

0χ∼ c →1t~

1

0χ∼b f f’

1

0χ∼

+mt <

m1t~

m

1

0χ∼

+ m

W

+ m

b

< m

1t~m

10

χ∼

+ m

c

/mb

< m

1t~m

1

0χ∼ t →1t~

/ 1

0χ∼ W b →1t~

/ 1

0χ∼ c →1t~

/ 1

0χ∼ b f f’ →1t~

production, 1t~1t

~ Status: ICHEP 2014

ATLAS Preliminary

-1 = 4.7 fbintL -1 = 20 fbintL1

0χ∼W b -1 = 20.3 fbintL

1

0χ∼c

1

0χ∼b f f’

-1 = 20.3 fbintL

Observed limits Expected limitsAll limits at 95% CL

=8 TeVs -1 = 20 fbintL =7 TeVs -1 = 4.7 fbintL

0L [1406.1122]

1L [1407.0583]

2L [1403.4853]

1L [1407.0583], 2L [1403.4853]

0L [1407.0608]

0L [1407.0608], 1L [1407.0583]

0L [1208.1447]

1L [1208.2590]

2L [1209.4186]

-

-

-

Direct stop search pp → t t

[GeV]1t

~m

200 300 400 500 600 700

[GeV

]10 χ∼

m

0

50

100

150

200

250

300

350

400

450

500

1

0χ∼ t →1t~

1

0χ∼ t →1t~

1

0χ∼ t →1t~

1

0χ∼ W b →1t~

1

0χ∼ c →1t~

1

0χ∼b f f’

1

0χ∼

+mt <

m1t~

m

1

0χ∼

+ m

W

+ m

b

< m

1t~m

10

χ∼

+ m

c

/mb

< m

1t~m

1

0χ∼ t →1t~

/ 1

0χ∼ W b →1t~

/ 1

0χ∼ c →1t~

/ 1

0χ∼ b f f’ →1t~

production, 1t~1t


ATLAS Preliminary

-1 = 4.7 fbintL -1 = 20 fbintL1

0χ∼W b -1 = 20.3 fbintL

1

0χ∼c

1

0χ∼b f f’

-1 = 20.3 fbintL



0L [1406.1122]

1L [1407.0583]

2L [1403.4853]

1L [1407.0583], 2L [1403.4853]

0L [1407.0608]

0L [1407.0608], 1L [1407.0583]

0L [1208.1447]

1L [1208.2590]

2L [1209.4186]

-

-

-


98. 98.5

99.

99.5

99.9

99.99

500 1000 1500 200080

85

90

95

100

105

110

115

mA

mt

EWBG excluded at 97.2 % 98.5 % CL

Indirect from Higgs couplings togluon/photon via stop loopAtlas 1407.0608; 1406.1122 Curtin, Jaiswal, Meade 1203.2932

I SM+singlet, 2HDM, dim6 Curtin, Meade, Yu 1409.0005; Craig et al 1412.0258;. . .

⇒ Precision Higgs coupling, invisible decay, triple-Higgs measurementscrucial (sometimes challenging, HL-LHC)

EW baryogenesis

I MSSM: need very light RH stops, practically excluded

[GeV]1t

~m

200 300 400 500 600 700

[GeV

]10 χ∼

m

0

50

100

150

200

250

300

350

400

450

500

1

0χ∼ t →1t~

1

0χ∼ t →1t~

1

0χ∼ t →1t~

1

0χ∼ W b →1t~

1

0χ∼ c →1t~

1

0χ∼b f f’

1

0χ∼

+mt <

m1t~

m

1

0χ∼

+ m

W

+ m

b

< m

1t~m

10

χ∼

+ m

c

/mb

< m

1t~m

1

0χ∼ t →1t~

/ 1

0χ∼ W b →1t~

/ 1

0χ∼ c →1t~

/ 1

0χ∼ b f f’ →1t~

production, 1t~1t


ATLAS Preliminary

-1 = 4.7 fbintL -1 = 20 fbintL1

0χ∼W b -1 = 20.3 fbintL

1

0χ∼c

1

0χ∼b f f’

-1 = 20.3 fbintL



0L [1406.1122]

1L [1407.0583]

2L [1403.4853]

1L [1407.0583], 2L [1403.4853]

0L [1407.0608]

0L [1407.0608], 1L [1407.0583]

0L [1208.1447]

1L [1208.2590]

2L [1209.4186]

-

-

-


98. 98.5

99.

99.5

99.9

99.99

500 1000 1500 200080

85

90

95

100

105

110

115

mA

mt

EWBG excluded at 97.2 % 98.5 % CL

Indirect from Higgs couplings togluon/photon via stop loop

Atlas 1407.0608; 1406.1122 Curtin, Jaiswal, Meade 1203.2932

I SM+singlet, 2HDM, dim6 Curtin, Meade, Yu 1409.0005; Craig et al 1412.0258;. . .

⇒ Precision Higgs coupling, invisible decay, triple-Higgs measurementscrucial (sometimes challenging, HL-LHC)

Baryogenesis and neutrinos

Neutrino

exp.

+ ?

Baryonasymmetry

Vanilla leptogenesis vs neutrino mass

10-4

10-3

10-2

10-1

100

10-4

10-3

10-2

10-1

100

108

109

1010

1011

1012

1013

1014

1015

1016

108

109

1010

1011

1012

1013

1014

1015

1016

M1 (

Ge

V)

m1 (eV)

m1 < 0.12 eV

M1 t 3x10

9 GeV

⇒ Treh

t 109 GeV

Di Bari 1206.3168 (unflavoured)

0.0 0.2 0.4 0.6 0.8 1.0

Σmν [eV]

2.4

3.2

4.0

4.8

Neff

Planck+WP+highL

Planck+WP+highL+BAO

Planck 1303.5076

[eV]ν mΣ

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

max

)/P

ν m

ΣP

(

0

0.2

0.4

0.6

0.8

1

1.2Planck

Planck+Beutler2013

Planck+CFHTLenS

Planck+Beutler2013+CFHTLenS

BOSS 1403.4599

⇒ absolute neutrino mass scale is very important ingredient

Dark Matter and the LHC

Collider exp.

+ ?

Dark Matter

Dark Matter

Ωχh2 = 0.1199± 0.0027

Planck XVI 1303.5076

The production mechanism of dark matter particlesis very model dependent

Many dark matter candidates proposed, with very different characteristics...

A. Ibarra; Kolb/Turner

‘The decade of the WIMP’

Ωχh2 = 0.1199± 0.0027 ' 0.1 pb · c /〈σv〉

Planck XVI 1303.5076

Fermi, H.E.S.S., AMS02, Planck. . . , CTA, GAMMA-400e.g. 1305.5597 1310.0828, 1410.2242; 1301.1173

XENON100 1207.5988

LUX 1310.8214

. . .XENON1TLZ

LHC7+8, LHC13e.g. CMS 1402.4770, ATLAS 1405.7875

NB: other well-motivated possibilities: axions, ...

WIMPology

I Many experiments at edge of sensitivity for WIMPy cross sections

I Large uncertainties: need input from simulations, halo profile,substructures, velocity distribution, . . . ; foregrounds, cosmic raypropagation, . . .⇒ Collider/CMB bounds highly desirable

Counts, 2.12 - 3.32 GeV

0 14.1

Residuals (Counts - Model)

-3.84 3.84

Residuals, GCE templ. readded

-3.84 3.84

0 5 10 15 20

Galactic latitude |b| [deg], at ` = 0

10−7

10−6

10−5

10−4

dN/dE

[1/cm

2sr

sG

eV]

GeV excess emissionat E = 2 GeV

Hooper&Goodenough 2010

Boyarsky+ 2010

Hooper&Slatyer 2013

Gordon+ 2013

Abazajian+ 2014

Daylan+ 2014

Calore+ 2014

Fermi coll. (preliminary)

contracted NFW γ = 1.26

Fermi Bubbles (extrapolated)

HI + H2 (at z < 0.2 kpc)

Calore, Cholis, Weniger 1409.0042

Calore, Cholis, McCabe, Weniger 1411.4647; . . .

Galactic center excess?

B. Andersson, Fermi LAT dwarf Pass 8

Interplay of ID, DD, LHC

I Combination of different probes is crucial to confirm/identify/‘ruleout’ WIMPs

I How to compare different probes?

I Most complete: full models (MSSM)

I Motivated from particle physicsI Many free parameters

I Most model-independent: effective operator description

I Straightforward and systematicI Limited reach of validity @ LHC energies

DM and the LHC

[GeV]χM1 10 210 310

]2-N

ucle

on C

ross

Sec

tion

[cm

χ

-4610

-4510

-4410

-4310

-4210

-4110

-4010

-3910

-3810

-3710

-3610

-1CMS, 90% CL, 8 TeV, 19.7 fb

-1CMS, 90% CL, 7 TeV, 5.0 fb

LUX 2013

superCD

MS

CD

MS

lite

XENON100

COUPP 2012

SIMPLE 2012CoGeNT 2011

CDMS II

CMS

Spin Independent

2Λ

q)µγq)(χµ

γχ(

Vector

3Λ4

2)νµa(G

sαχχ

Scalar

-1CMS, 90% CL, 8 TeV, 19.7 fb

LV =χγµχ qγµq

Λ2

LS =χχ αsGµνG

µν

Λ3

LA =χγµγ5χ qγµγ5q

Λ2

. . .

CMS 1408.3583

Validity of contact int. limit?

Momentum transfer ∼ TeV, limit on suppression scale Λ ∼ TeVe.g. Busoni, De Simone, Morgante, Riotto 1402.1275; . . .

cf. also Goodman, Ibe, Rajamaran, Sheperd, Tait, Yu 10; Bai, Fox, Harnik 10

DM and the LHC

[GeV]χM1 10 210 310

]2-N

ucle

on C

ross

Sec

tion

[cm

χ

-4610

-4510

-4410

-4310

-4210

-4110

-4010

-3910

-3810

-3710

-3610

-1CMS, 90% CL, 8 TeV, 19.7 fb

-1CMS, 90% CL, 7 TeV, 5.0 fb

COUPP 2012

-W+

IceCube W

SIMPLE 2012

-W+

Super-K W

CMS

Spin Dependent

2Λ

q)5

γµγq)(χ5

γµ

γχ(Axial-vector operator

LV =χγµχ qγµq

Λ2

LS =χχ αsGµνG

µν

Λ3


Λ2

. . .

CMS 1408.3583




DM and the LHC

200 300 400 500 600 700 800 900 1000

Events

/ 2

5 G

eV

110

1

10

210

310

410

510

610

710 Data

/jetsγ)+ννZ(

/jetsγ)+νW(l

tt

Single t

QCD Multijets

Diboson

/jetsγZ(ll)+

= 3δ= 2 TeV, DADD M

= 2 TeVUΛ=1.7, U

Unparticles d

= 1 GeVχ

= 0.9 TeV, MΛDM

CMS

(8 TeV)119.7 fb

[GeV] T

missE

200 300 400 500 600 700 800 900 1000

MC

Da

ta

MC

2

1

0

1

2

LV =χγµχ qγµq

Λ2

LS =χχ αsGµνG

µν

Λ3


Λ2

. . .

CMS 1408.3583




Interplay of ID, DD, LHC

I Bottom-up approach: DM + mediator

s-channel t-channel

χ

χ

SM

SM

χ

χ

SM

SM

η

When is the mediator important?

I Collider searches (direct production of mediator for mη . 2− 3 TeV)

.g η

g η

gs

gs

g η

g η

g2s q η

q η

gs gs qq η

χ

η

f

f

I Indirect detection (internal bremsstrahlung for mη . 5mχ,Majorana)

χ q

η

χ q

γ χ η

χ q

γ χ q

γη

χ

Bergstrom 89; Bergstrom, Bringmann, Edsjo 0710.3169

I Direct detection (EFT OK, except resonance for mη ' mχ)

q

χ

η

χ

q

g

χχ η

g

g

χχ

g

· · ·

Hisano, Ishiwata, Nagata 1110.3719; Gondolo, Scopel 1307.4481; Drees, Nojiri; . . .

Complementarity (for thermal production)

102 103 10410-2

10-1

100

101

mΧ GeV

mΗm

Χ-

1DM coupling to u-quark

ATLAS

jets+ETmiss

underproduction

overproduction

non-pert.

y=0.33 Η=squark

MG, Ibarra, Rydbeck, Vogl 1403.4634


25.

50.

100

100

102 103 10410-2

10-1

100

101

mΧ GeV

mΗm

Χ-

1DM coupling to u-quark

ATLA

SM

onojet

ATLAS

jets+ETmiss

underproduction

overproduction

non-pert.

y=0.33 Η=squark

H.E.S.S.

XENON100

LUX



15.

25.

25.

50.

50.

100

102 103 10410-2

10-1

100

101

mΧ GeV

mΗm

Χ-

1DM coupling to u-quark prospects

ATLA

SM

onojet

ATLAS

jets+ETmiss

underproduction

overproduction

non-pert.

y=0.33 Η=squark

CTA

XENON100

XENON1T

LUX


DM coupling to leptons

MG, Ibarra, Pato, Vogl 1306.6342

Conclusion

I Most profound observational hints for physics beyond SM comefrom cosmology; way ahead of theory/laboratory

I Next LHC run(s) will have important consequences for manyscenarios of WIMP dark matter, EW baryogenesis, . . .

I Complementarity/combination with ID & DD will be crucial toidentify/rule out WIMPs

I Also many other interesting connections: neutrino mass,models/scale of inflation, DM self-interactions, topological defectsreheating vs heavy ion (QFT in extreme environments), . . .

image from T. Kamon

Conclusion

I Most profound observational hints for physics beyond SM comefrom cosmology; way ahead of theory/laboratory

I Next LHC run(s) will have important consequences for manyscenarios of WIMP dark matter, EW baryogenesis, . . .

I Complementarity/combination with ID & DD will be crucial toidentify/rule out WIMPs

I Also many other interesting connections: neutrino mass,models/scale of inflation, DM self-interactions, topological defectsreheating vs heavy ion (QFT in extreme environments), . . .

thank you! image from T. Kamon

Massive neutrinos and leptogenesis

m2ν1−m2

ν2= 7.02...8.09 · 10−5eV2 (3σ range)

|m2ν1−m2

ν3| = 2.31...2.60 · 10−3eV2

Add right-handed neutrinos to SM, seesaw explains why mν is so small

mν = −v2EW yM−1

νRyT

. . . and baryon asymmetry Fukugita, Yanagida 86

I B-L-violating Majorana masses MνR

I CP-violation via Yukawa couplings y (like for quarks)

I Out-of-equilibrium (inverse) decay νR ↔ `φ† and νR ↔ `cφ

(Γi/H)|T =Mi 'mν,i/8π

1.66g∗v2EW /Mpl

' mν,i/meV

∼ O(1− 100) ↔ leptogenesis works well

for observed ν mass scale

Direct production of the mediator gg , qq → ηη, η → χq

DM-SM-med.couplingstrength

mass splitting

MG, Ibarra, Rydbeck, Vogl 1403.4634; cf. also Papucci, Vichi, Zurek 1402.2285 for Dirac DM

Reinterpretation of ATLAS search for jets + missing energyL = 20.3 fb−1 (signal regions with 2-4jets; matching for two ad. jets)

ATLAS 1405.7875; ATLAS-CONF-2013-047

The LHC and cosmology...Scalar gluon pair, sgluon ! t¯ 2e; (SS) 2b Yes 14.3 sgluon 350-800 GeV...

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