[PPT] - Implications of early LHC Results Fermilab CMS limits CMS E PowerPoint Presentation

SLIDE 1

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

The Long View
Return to the Energy Frontier
Staging Physics Milestones
Summary

Toward an Energy Frontier Muon Collider

1

Estia Eichten Fermilab

2013 Community Summer Study

“Snowmass on the Mississippi” University of Minnesota July 29-Aug 6, 2013

WhitePapers

1. Enabling Intensity and Energy Frontier Science

with a Muon Accelerator Facility In the USA

2. Muon Collider Higgs Factory

SLIDE 2

No evidence for new physics beyond the Standard Model (BSM) to date:

–

BSM (SUSY, Strong Dynamics, Extra Dimensions, New fermions or gauge bosons,...)

ATLAS limits

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

2

Mass scale [TeV]

1

10 1 10

2

10

Other Excit.

ferm.

New quarks LQ V' CI Extra dimensions

jj

m Color octet scalar : dijet resonance,

µ e

m , µ )=1) : SS e µ e →

L ± ±

(DY prod., BR(H

L ± ±

H

ll

m ), µ µ ll)=1) : SS ee ( →

L ± ±

(DY prod., BR(H

L ± ±

H (LRSM, no mixing) : 2-lep + jets

R

W

Major. neutr. (LRSM, no mixing) : 2-lep + jets

,WZ T

m lll), ν Techni-hadrons (LSTC) : WZ resonance (

µ µ ee/

m Techni-hadrons (LSTC) : dilepton,

γ l

m resonance, γ Excited lepton : l-

jj

m Excited quarks : dijet resonance,

jet γ

m

jet resonance,

γ Excited quarks :

llq

m Vector-like quark : NC,

q ν l

m Vector-like quark : CC, )

T2

(dilepton, M A tt + A → Top partner : TT

Zb

m Zb+X, → New quark b' : b'b' WtWt → )

5/3

T

5/3

generation : b'b'(T

th

4 WbWb → generation : t't'

th

4 jj ν τ jj, τ τ =1) : kin. vars. in β Scalar LQ pair ( jj ν µ jj, µ µ =1) : kin. vars. in β Scalar LQ pair ( jj ν =1) : kin. vars. in eejj, e β Scalar LQ pair (

µ T,e/

m W* :

tb

m tb, SSM) : → (

R

W'

tq

m =1) :

R

tq, g → W' (

µ T,e/

m W' (SSM) :

τ τ

m Z' (SSM) :

µ µ ee/

m Z' (SSM) :

,miss T

E uutt CI : SS dilepton + jets +

ll

m , µ µ qqll CI : ee & )

jj

m ( χ qqqq contact interaction : )

jj

m (

χ

Quantum black hole : dijet, F

T

p Σ =3) : leptons + jets,

D

M /

TH

M ADD BH (

ch. part.

N =3) : SS dimuon,

D

M /

TH

M ADD BH (

tt,boosted

m l+jets, → tt (BR=0.925) : tt →

KK

RS g

ν l ν ,l T

m RS1 : WW resonance,

llll / lljj

m RS1 : ZZ resonance,

/ ll γ γ

m RS1 : diphoton & dilepton,

ll

m ED : dilepton,

2

/Z

1

S

,miss T

E UED : diphoton +

/ ll γ γ

m Large ED (ADD) : diphoton & dilepton,

,miss T

E Large ED (ADD) : monophoton +

,miss T

E Large ED (ADD) : monojet + Scalar resonance mass

1.86 TeV , 7 TeV [1210.1718]

1

=4.8 fb L

mass

L ± ±

H

375 GeV , 7 TeV [1210.5070]

1

=4.7 fb L

) µ µ mass (limit at 398 GeV for

L ± ±

H

409 GeV , 7 TeV [1210.5070]

1

=4.7 fb L

(N) < 1.4 TeV) m mass (

R

W

2.4 TeV , 7 TeV [1203.5420]

1

=2.1 fb L

) = 2 TeV)

R

(W m N mass (

1.5 TeV , 7 TeV [1203.5420]

1

=2.1 fb L

))

T

ρ ( m ) = 1.1

T

(a m ,

W

m ) +

T

π ( m ) =

T

ρ ( m mass (

T

ρ

483 GeV , 7 TeV [1204.1648]

1

=1.0 fb L

)

W

) = M

T

π ( m ) -

T

ω /

T

ρ ( m mass (

T

ω /

T

ρ

850 GeV , 7 TeV [1209.2535]

1

=4.9-5.0 fb L

= m(l*)) Λ l* mass (

2.2 TeV , 8 TeV [ATLAS-CONF-2012-146]

1

=13.0 fb L

q* mass

3.84 TeV , 8 TeV [ATLAS-CONF-2012-148]

1

=13.0 fb L

q* mass

2.46 TeV , 7 TeV [1112.3580]

1

=2.1 fb L

)

Q

/m ν =

qQ

κ VLQ mass (charge 2/3, coupling

1.08 TeV , 7 TeV [ATLAS-CONF-2012-137]

1

=4.6 fb L

)

Q

/m ν =

qQ

κ VLQ mass (charge -1/3, coupling

1.12 TeV , 7 TeV [ATLAS-CONF-2012-137]

1

=4.6 fb L

) < 100 GeV) (A m T mass (

483 GeV , 7 TeV [1209.4186]

1

=4.7 fb L

b' mass

400 GeV , 7 TeV [1204.1265]

1

=2.0 fb L

) mass

5/3

b' (T

670 GeV , 7 TeV [ATLAS-CONF-2012-130]

1

=4.7 fb L

t' mass

656 GeV , 7 TeV [1210.5468]

1

=4.7 fb L

gen. LQ mass

rd

3

538 GeV , 7 TeV [Preliminary]

1

=4.7 fb L

gen. LQ mass

nd

2

685 GeV , 7 TeV [1203.3172]

1

=1.0 fb L

gen. LQ mass

st

1

660 GeV , 7 TeV [1112.4828]

1

=1.0 fb L

W* mass

2.42 TeV , 7 TeV [1209.4446]

1

=4.7 fb L

W' mass

1.13 TeV , 7 TeV [1205.1016]

1

=1.0 fb L

W' mass

430 GeV , 7 TeV [1209.6593]

1

=4.7 fb L

W' mass

2.55 TeV , 7 TeV [1209.4446]

1

=4.7 fb L

Z' mass

1.4 TeV , 7 TeV [1210.6604]

1

=4.7 fb L

Z' mass

2.49 TeV , 8 TeV [ATLAS-CONF-2012-129]

1

=5.9-6.1 fb L

Λ

1.7 TeV , 7 TeV [1202.5520]

1

=1.0 fb L

(constructive int.) Λ

13.9 TeV , 7 TeV [1211.1150]

1

=4.9-5.0 fb L

Λ

7.8 TeV , 7 TeV [ATLAS-CONF-2012-038]

1

=4.8 fb L

=6) δ (

D

M

4.11 TeV , 7 TeV [1210.1718]

1

=4.7 fb L

=6) δ (

D

M

1.5 TeV , 7 TeV [1204.4646]

1

=1.0 fb L

=6) δ (

D

M

1.25 TeV , 7 TeV [1111.0080]

1

=1.3 fb L

mass

KK

g

1.9 TeV , 7 TeV [ATLAS-CONF-2012-136]

1

=4.7 fb L

= 0.1)

Pl

M / k Graviton mass (

1.23 TeV , 7 TeV [1208.2880]

1

=4.7 fb L

= 0.1)

Pl

M / k Graviton mass (

845 GeV , 7 TeV [1203.0718]

1

=1.0 fb L

= 0.1)

Pl

M / k Graviton mass (

2.23 TeV , 7 TeV [1210.8389]

1

=4.7-5.0 fb L

1

~ R

KK

M

4.71 TeV , 7 TeV [1209.2535]

1

=4.9-5.0 fb L

1
Compact. scale R

1.41 TeV , 7 TeV [ATLAS-CONF-2012-072]

1

=4.8 fb L

=3, NLO) δ (HLZ

S

M

4.18 TeV , 7 TeV [1211.1150]

1

=4.7 fb L

=2) δ (

D

M

1.93 TeV , 7 TeV [1209.4625]

1

=4.6 fb L

=2) δ (

D

M

4.37 TeV , 7 TeV [1210.4491]

1

=4.7 fb L

Only a selection of the available mass limits on new states or phenomena shown *

1

= (1.0 - 13.0) fb Ldt

∫

= 7, 8 TeV s

ATLAS

Preliminary

ATLAS Exotics Searches* - 95% CL Lower Limits (Status: HCP 2012)

Mass scale [TeV]

1

10 1 10

RPV Long-lived particles EW direct 3rd gen. squarks direct production 3rd gen. gluino mediated Inclusive searches

,miss T

E ) : 'monojet' + χ WIMP interaction (D5, Dirac Scalar gluon : 2-jet resonance pair

,miss T

E bs : 2 SS-lep + (0-3b-)j's + → t ~ t, t ~ → g ~ qqq : 3-jet resonance pair → g ~

,miss T

E + τ : 3 lep + 1

τ

ν τ ,e

e

ν τ τ →

1

χ ∼ , ...,

1

χ ∼

+ 1

χ ∼

,miss T

E : 4 lep +

e

ν µ ,e

µ

ν ee →

1

χ ∼ ,

1

χ ∼ W →

+ 1

χ ∼ ,

1

χ ∼

+ 1

χ ∼

,miss T

E Bilinear RPV CMSSM : 1 lep + 7 j's + resonance τ )+ µ e( →

τ

ν ∼ +X,

τ

ν ∼ → LFV : pp resonance µ e+ →

τ

ν ∼ +X,

τ

ν ∼ → LFV : pp + heavy displaced vertex µ (RPV) : µ qq →

1

χ ∼ : non-pointing photons G ~ γ →

1

χ ∼ GMSB, β : low τ ∼ GMSB, stable γ β , β , R-hadrons : low g ~ Stable

± 1

χ ∼ pair prod. (AMSB) : long-lived

± 1

χ ∼ Direct

,miss T

E : 3 lep +

1

χ ∼

)

*

(

Z

1

χ ∼

)

*

(

W →

2

χ ∼

± 1

χ ∼

,miss T

E ) : 3 lep + ν ν ∼ l(

L

l ~ ν ∼ ), l ν ν ∼ l(

L

l ~ ν

L

l ~ →

2

χ ∼

± 1

χ ∼

,miss T

E + τ ) : 2 ν ∼ τ ( ν τ ∼ →

+ 1

χ ∼ ,

1

χ ∼

+ 1

χ ∼

,miss T

E ) : 2 lep + ν ∼ (l ν l ~ →

+ 1

χ ∼ ,

1

χ ∼

+ 1

χ ∼

,miss T

E : 2 lep +

1

χ ∼ l → l ~ ,

L

l ~

L

l ~

,miss T

E ll) + 1 lep + b-jet + → +Z : Z(

1

t ~ →

2

t ~ ,

2

t ~

2

t ~

,miss T

E ll) + b-jet + → (natural GMSB) : Z( t ~ t ~

,miss T

E : 0 lep + 6(2b-)jets +

1

χ ∼ t → t ~ (heavy), t ~ t ~

,miss T

E : 1 lep + b-jet +

1

χ ∼ t → t ~ (heavy), t ~ t ~

,miss T

E : 2 lep +

± 1

χ ∼ b → t ~ (medium), t ~ t ~

,miss T

E : 1 lep + b-jet +

± 1

χ ∼ b → t ~ (medium), t ~ t ~

,miss T

E : 1/2 lep (+ b-jet) +

± 1

χ ∼ b → t ~ (light), t ~ t ~

,miss T

E : 2 SS-lep + (0-3b-)j's +

± 1

χ ∼ t →

1

b ~ , b ~ b ~

,miss T

E : 0 lep + 2-b-jets +

1

χ ∼ b →

1

b ~ , b ~ b ~

,miss T

E : 0 lep + 3 b-j's +

1

χ ∼ t t → g ~

,miss T

E : 0 lep + multi-j's +

1

χ ∼ t t → g ~

,miss T

E : 2 SS-lep + (0-3b-)j's +

1

χ ∼ t t → g ~

,miss T

E : 0 lep + 3 b-j's +

1

χ ∼ b b → g ~

,miss T

E Gravitino LSP : 'monojet' +

,miss T

E GGM (higgsino NLSP) : Z + jets +

,miss T

E + b + γ GGM (higgsino-bino NLSP) :

,miss T

E + lep + γ GGM (wino NLSP) :

,miss T

E + γ γ GGM (bino NLSP) :

,miss T

E + j's + τ NLSP) : 1-2 τ ∼ GMSB (

,miss T

E NLSP) : 2 lep (OS) + j's + l ~ GMSB (

,miss T

E ) : 1 lep + j's +

±

χ ∼ q q → g ~ (

±

χ ∼ Gluino med.

,miss T

E Pheno model : 0 lep + j's +

,miss T

E Pheno model : 0 lep + j's +

,miss T

E MSUGRA/CMSSM : 1 lep + j's +

,miss T

E MSUGRA/CMSSM : 0 lep + j's + M* scale

< 80 GeV, limit of < 687 GeV for D8) χ m ( 704 GeV , 8 TeV [ATLAS-CONF-2012-147]

1

=10.5 fb L

sgluon mass

(incl. limit from 1110.2693) 100-287 GeV , 7 TeV [1210.4826]

1

=4.6 fb L

mass g ~

)) t ~ ( m (any 880 GeV , 8 TeV [ATLAS-CONF-2013-007]

1

=20.7 fb L

mass g ~

666 GeV , 7 TeV [1210.4813]

1

=4.6 fb L

mass

+ 1

χ ∼ ∼

> 0) 133 λ ) > 80 GeV, 1 χ ∼ ( m ( 350 GeV , 8 TeV [ATLAS-CONF-2013-036]

1

=20.7 fb L

mass

+ 1

χ ∼ ∼

> 0) 121 λ ) > 300 GeV, 1 χ ∼ ( m ( 760 GeV , 8 TeV [ATLAS-CONF-2013-036]

1

=20.7 fb L

mass g ~ = q ~

< 1 mm) LSP τ (c 1.2 TeV , 7 TeV [ATLAS-CONF-2012-140]

1

=4.7 fb L

mass

τ

ν ∼

=0.05) 1(2)33 λ =0.10, , 311 λ ( 1.10 TeV , 7 TeV [1212.1272]

1

=4.6 fb L

mass

τ

ν ∼

=0.05) 132 λ =0.10, , 311 λ ( 1.61 TeV , 7 TeV [1212.1272]

1

=4.6 fb L

mass q ~

decoupled) g ~ < 1 m, τ (1 mm < c 700 GeV , 7 TeV [1210.7451]

1

=4.4 fb L

mass

1

χ ∼

) < 2 ns) 1 χ ∼ ( τ (0.4 < 230 GeV , 7 TeV [ATLAS-CONF-2013-016]

1

=4.7 fb L

mass τ ∼

< 20) β (5 < tan 300 GeV , 7 TeV [1211.1597]

1

=4.7 fb L

mass g ~

985 GeV , 7 TeV [1211.1597]

1

=4.7 fb L

mass

± 1

χ ∼

) < 10 ns) ± 1 χ ∼ ( τ (1 < 220 GeV , 7 TeV [1210.2852]

1

=4.7 fb L

mass

± 1

χ ∼

) = 0, sleptons decoupled) 1 χ ∼ ( m ), 2 χ ∼ ( m ) = ± 1 χ ∼ ( m ( 315 GeV , 8 TeV [ATLAS-CONF-2013-035]

1

=20.7 fb L

mass

± 1

χ ∼

) as above) ν ∼ , l ~ ( m ) = 0, 1 χ ∼ ( m ), 2 χ ∼ ( m ) = ± 1 χ ∼ ( m ( 600 GeV , 8 TeV [ATLAS-CONF-2013-035]

1

=20.7 fb L

mass

± 1

χ ∼

))) 1 χ ∼ ( m ) + ± 1 χ ∼ ( m ( 2 1 ) = ν ∼ , τ ∼ ( m ) < 10 GeV, 1 χ ∼ ( m ( 180-330 GeV , 8 TeV [ATLAS-CONF-2013-028]

1

=20.7 fb L

mass

± 1

χ ∼

))) 1 χ ∼ ( m ) + ± 1 χ ∼ ( m ( 2 1 ) = ν ∼ , l ~ ( m ) < 10 GeV, 1 χ ∼ ( m ( 110-340 GeV , 7 TeV [1208.2884]

1

=4.7 fb L

mass l ~

) = 0) 1 χ ∼ ( m ( 85-195 GeV , 7 TeV [1208.2884]

1

=4.7 fb L

mass

2

t ~

) + 180 GeV) 1 χ ∼ ( m ) = 1 t ~ ( m ( 520 GeV , 8 TeV [ATLAS-CONF-2013-025]

1

=20.7 fb L

mass t ~

) > 150 GeV) 1 χ ∼ ( m ( 500 GeV , 8 TeV [ATLAS-CONF-2013-025]

1

=20.7 fb L

mass t ~

) = 0) 1 χ ∼ ( m ( 320-660 GeV , 8 TeV [ATLAS-CONF-2013-024]

1

=20.5 fb L

mass t ~

) = 0) 1 χ ∼ ( m ( 200-610 GeV , 8 TeV [ATLAS-CONF-2013-037]

1

=20.7 fb L

mass t ~

) = 10 GeV) ± 1 χ ∼ ( m )- t ~ ( m ) = 0 GeV, 1 χ ∼ ( m ( 160-440 GeV , 8 TeV [ATLAS-CONF-2012-167]

1

=13.0 fb L

mass t ~

) = 150 GeV) ± 1 χ ∼ ( m ) = 0 GeV, 1 χ ∼ ( m ( 160-410 GeV , 8 TeV [ATLAS-CONF-2013-037]

1

=20.7 fb L

mass t ~

) = 55 GeV) 1 χ ∼ ( m ( 167 GeV , 7 TeV [1208.4305, 1209.2102]

1

=4.7 fb L

mass b ~

)) 1 χ ∼ ( m ) = 2 ± 1 χ ∼ ( m ( 430 GeV , 8 TeV [ATLAS-CONF-2013-007]

1

=20.7 fb L

mass b ~

) < 120 GeV) 1 χ ∼ ( m ( 620 GeV , 8 TeV [ATLAS-CONF-2012-165]

1

=12.8 fb L

mass g ~

) < 200 GeV) 1 χ ∼ ( m ( 1.15 TeV , 8 TeV [ATLAS-CONF-2012-145]

1

=12.8 fb L

mass g ~

) < 300 GeV) 1 χ ∼ ( m ( 1.00 TeV , 8 TeV [ATLAS-CONF-2012-103]

1

=5.8 fb L

mass g ~

)) 1 χ ∼ ( m (any 900 GeV , 8 TeV [ATLAS-CONF-2013-007]

1

=20.7 fb L

mass g ~

) < 200 GeV) 1 χ ∼ ( m ( 1.24 TeV , 8 TeV [ATLAS-CONF-2012-145]

1

=12.8 fb L

scale

1/2

F

eV)

4

) > 10 G ~ ( m ( 645 GeV , 8 TeV [ATLAS-CONF-2012-147]

1

=10.5 fb L

mass g ~

) > 200 GeV) H ~ ( m ( 690 GeV , 8 TeV [ATLAS-CONF-2012-152]

1

=5.8 fb L

mass g ~

) > 220 GeV) 1 χ ∼ ( m ( 900 GeV , 7 TeV [1211.1167]

1

=4.8 fb L

mass g ~

619 GeV , 7 TeV [ATLAS-CONF-2012-144]

1

=4.8 fb L

mass g ~

) > 50 GeV) 1 χ ∼ ( m ( 1.07 TeV , 7 TeV [1209.0753]

1

=4.8 fb L

mass g ~

> 18) β (tan 1.40 TeV , 8 TeV [1210.1314]

1

=20.7 fb L

mass g ~

< 15) β (tan 1.24 TeV , 7 TeV [1208.4688]

1

=4.7 fb L

mass g ~

)) g ~ ( m )+ χ ∼ ( m ( 2 1 ) = ± χ ∼ ( m ) < 200 GeV, 1 χ ∼ ( m ( 900 GeV , 7 TeV [1208.4688]

1

=4.7 fb L

mass q ~

) 1 χ ∼ ) < 2 TeV, light g ~ ( m ( 1.38 TeV , 8 TeV [ATLAS-CONF-2012-109]

1

=5.8 fb L

mass g ~

) 1 χ ∼ ) < 2 TeV, light q ~ ( m ( 1.18 TeV , 8 TeV [ATLAS-CONF-2012-109]

1

=5.8 fb L

mass g ~ = q ~

1.24 TeV , 8 TeV [ATLAS-CONF-2012-104]

1

=5.8 fb L

mass g ~ = q ~

1.50 TeV , 8 TeV [ATLAS-CONF-2012-109]

1

=5.8 fb L

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

1

= (4.4 - 20.7) fb Ldt

∫

= 7, 8 TeV s

ATLAS

Preliminary 7 TeV, all 2011 data 8 TeV, partial 2012 data 8 TeV, all 2012 data

ATLAS SUSY Searches* - 95% CL Lower Limits (Status: March 26, 2013)

Implications of early LHC Results

SLIDE 3

CMS limits

–

Scales already probed at the LHC suggest that to study BSM new physics the next energy frontier collider must have √ŝ in the multi-TeV range even for EW processes.

–

However there must be new physics !!! WHY? Let me list the reasons

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

3

q* (qg), dijet q* (qW) q* (qZ) q* , dijet pair q* , boosted Z e*, Λ = 2 TeV μ*, Λ = 2 TeV 1 2 3 4 5 6 Z’SSM (ee, µµ) Z’SSM (ττ) Z’ (tt hadronic) width=1.2% Z’ (dijet) Z’ (tt lep+jet) width=1.2% Z’SSM (ll) fbb=0.2 G (dijet) G (ttbar hadronic) G (jet+MET) k/M = 0.2 G (γγ) k/M = 0.1 G (Z(ll)Z(qq)) k/M = 0.1 W’ (lν) W’ (dijet) W’ (td) W’→ WZ(leptonic) WR’ (tb) WR, MNR=MWR/2 WKK μ = 10 TeV ρTC, πTC > 700 GeV String Resonances (qg) s8 Resonance (gg) E6 diquarks (qq) Axigluon/Coloron (qqbar) gluino, 3jet, RPV 1 2 3 4 5 6 gluino, Stopped Gluino stop, HSCP stop, Stopped Gluino stau, HSCP , GMSB hyper-K, hyper-ρ=1.2 TeV neutralino, cτ<50cm 1 2 3 4 5 6 Ms, γγ, HLZ, nED = 3 Ms, γγ, HLZ, nED = 6 Ms, ll, HLZ, nED = 3 Ms, ll, HLZ, nED = 6 MD, monojet, nED = 3 MD, monojet, nED = 6 MD, mono-γ, nED = 3 MD, mono-γ, nED = 6 MBH, rotating, MD=3TeV, nED = 2 MBH, non-rot, MD=3TeV, nED = 2 MBH, boil. remn., MD=3TeV, nED = 2 MBH, stable remn., MD=3TeV, nED = 2 MBH, Quantum BH, MD=3TeV, nED = 2 1 2 3 4 5

Sh. Rahatlou

1

LQ1, β=0.5 LQ1, β=1.0 LQ2, β=0.5 LQ2, β=1.0 LQ3 (bν), Q=±1/3, β=0.0 LQ3 (bτ), Q=±2/3 or ±4/3, β=1.0 stop (bτ) 1 2 3 4 5 b’ → tW, (3l, 2l) + b-jet q’, b’/t’ degenerate, Vtb=1 b’ → tW, l+jets B’ → bZ (100%) T’ → tZ (100%) t’ → bW (100%), l+jets t’ → bW (100%), l+l 1 2 3 4 5 C.I. Λ , Χ analysis, Λ+ LL/RR C.I. Λ , Χ analysis, Λ- LL/RR C.I., µµ, destructve LLIM C.I., µµ, constructive LLIM C.I., single e (HnCM) C.I., single µ (HnCM) C.I., incl. jet, destructive C.I., incl. jet, constructive 5 10 15

Heavy Resonances 4th Generation Compositeness Long Lived LeptoQuarks Extra Dimensions & Black Holes Contact Interactions 95% CL EXCLUSION LIMITS (TEV)

CMS EXOTICA

Implications of early LHC Results

SLIDE 4

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

1. The Standard Model is incomplete: –

dark matter; neutrino masses and mixing -> new fields or interactions;

–

baryon asymmetry in the universe -> more CP violation

–

gauge unification -> new interactions;

–

gravity: strings and extra dimensions

2. Experimental hints of new physics: (g-2)µ, top Afb, ...
3. Theoretical problems with the SM:

– Scalar sector problematic:

μ2 (Φ✝Φ) + λ (Φ✝Φ)2 + ΓijψiL✝ψjRΦ + h.c. –

The SM Higgs boson is unnatural. (mH2/µ2)

–

Solutions: SUSY, New Strong Dynamics, ...

4

mH2/M2planck ≈ 10-34 Hierarchy problem vacuum stability large range of fermion masses

Implications of early LHC Results

muon (g-2)

SLIDE 5

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

The SM Higgs and BSM

The strong case for a TeV scale hadron collider rested on two

arguments:

1. Unitarity required that a mechanism for EWSB was manifest at or below the

TeV scale.

2. The SM is unnatural (‘t Hooft conditions) and incomplete (dark matter,

insufficient CP violation for the observed baryon excess, gauge unification, gravity and strings)

If after the analysis of the 2012 CMS/ATLAS data, the 126 GeV state

is found to be a 0+ state with couplings consistent with the SM Higgs, the first argument is satisfied. –

The second argument remains strong. but is less strongly tied to the TeV scale.

–

Scales already probed at the LHC suggest that any new collider (of LHC level costs) should be able the probe the BSM physics in the multi-TeV range.

5

SLIDE 6

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Muon Collider

μ+μ- Collider:

–

Center of Mass energy: 1.5 - 10 TeV (3 Tev)

–

Luminosity > 1034 cm-2 sec-1 (440 fb-1/yr)

– Compact facility

3 TeV - ring circumference 3.8 km
2 Detectors

–

Superb Energy Resolution

MC: 95% luminosity in dE/E ~ 0.1%
CLIC: 35% luminosity in dE/E ~ 1%

6

SLIDE 7

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Muon Collider

Comparison of Lepton Colliders at

High Energy –

Increase of luminosity with energy. Needed for new physics.

–

Wall power in operation.

–

Only a Muon Collider provides a path to the energy frontier.

7

U.S.$Muon$Accelerator$Program$$

Figure A-3: Figure of merit: peak luminosity (within 1% colliding energy) normalized to wall-plug power !"!!# $"!!# %!"!!# %$"!!# &!"!!# &$"!!# '!"!!# '$"!!# (!"!!# !"!!# !"$!# %"!!# %"$!# &"!!# &"$!# '"!!# '"$!#

!"#!$%&' ()*+),'-.'%/00'1*),23'45)67'

8)9+-*'(-::;<),0'=;2>,)'-.'%),;+?''8>@;*-0;+3$&/::'A-B),'

)*+# +*)+# ,-./# 0123#+2445678#

SLIDE 8

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Muon Collider

For √s < 500 GeV

–

SM thresholds: Z0h ,W+W-, top pairs

–

Higgs factory (√s≈ 126 GeV) ✔

For √s > 500 GeV

–

Sensitive to possible Beyond SM physics.

–

High luminosity required. ✔

Cross sections for central (|θ| > 10o) pair production

~ R × 86.8 fb/s(in TeV2) (R ≈ 1)

At √s = 3 TeV for 100 fb-1 ~ 1000 events/(unit of R)
For √s > 1 TeV

–

Fusion processes important at multi-TeV MC

–

An Electroweak Boson Collider ✔

8

SLIDE 9

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Muon Collider

But muons decay:

–

The muon beams must be accelerated and cooled in phase space (factor ≈ 106) rapidly

> ionization cooling

–

requires a complex cooling scheme

–

The decay products (μ- -> νμνe e- ) have high energies.

Detector background issues
Neutrino beam issue -> Ecm ≾ 10 TeV.
The issues need dedicated R&D

–

MICE

–

MAP

–

nuStorm - Definitive 6D cooling demo.

9

Higgs Factory

10.0 102 103 104 1.0 10 102 DoE March, 2013 Transverse Emittance (micron) Longitudinal Emittance (mm) Final 4D Cooling 6D Cooling Merge 12→1 bunch 6D Cooling Phase Rotation to 12 bunches Initial Required for TeV Colliders Required for Higgs Factory

SLIDE 10

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Staging A Muon Collider

Provide a flexible staging scenerio with physics at each stage.

–

Proton driver - Project X

LBNE, rare K decays, mu to e conversion, (g-2)µ, EDM, N-Nbar
scillations, cold muons, ...

–

Neutrino Factory

–

Higgs Factory

–

High Energy Muon Collider

Staging plan has been developed.

10

Figure 15: Functional elements of a 5 GeV Neutrino Factory

!"#$%&'

()*+,%#'

,".%'/0&"&0#'

12'3004%#' 3"5&)#%'604%*078' 9++):)4"&0#' 30:5#%..0#'

'''-#0&0*'2#7;%#' '''<#0*&'=*8'

>$?@%&'!"#$%&'

'''9++%4%#"A0*'

2%+"B'3,"**%4'

'''! 6&0#"$%'/7*$' !" #"

'CDEFG'H:' 9++%4%#"&0#'!B5%.I' J7*"+K'/%+7#+)4"A*$'' J7*"+'L/J9M'0#'<<9N'

DEOPQEO'N%R' QEOP' G'N%R'

G'N%R'

2.4.3.1 Components%

Figure 26: Functional elements of a Higgs Factory/Muon Collider complex

WhitePapers
1. Enabling Intensity and Energy Frontier Science with a Muon Accelerator Facility In the USA.
2. Muon Collider Higgs Factory

SLIDE 11

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Neutrino Physics Staging Scenerio

Neutrino Physics Staging

–

Because 𝛊 13 is large a lower energy (5 GeV) and 1300 km works for a Neutrino Factory.

–

First a lower intensity (Project X phase 2) (2 x 1020 µ±/yr) neutrino factory NuMAX

–

Then higher intensity (1.2 x 1021 µ±/yr) NuMAX+

–

Unsurpassed performance is obtained for 34 kton magnetized LAr (TPC) at distance 1300 km (NuMAX+)

11

Table 1. Muon Accelerator Program baseline Neutrino Factory parameters for nuSTORM and two NuMAX phases located on the Fermilab site and pointed towards a detector at SURF. For comparison, the parameters of the IDS-NF are also shown. System Unit nuSTORM NuMAX NuMAX+ IDS-NF 8!1017 2!1020 1.2!1021 1!1021 3!1017 8!1019 5!1020 5!1020 Type SuperBIND MIND / Mag LAr MIND / Mag LAr MIND km 1.9 1300 1300 2000 kT 1.3 30 / 10 100 / 30 100 T 2 0.5-2 0.5-2 1-2 Type SuperBIND Suite Suite Suite m 50 100 100 100 kT 0.1 1 2.7 2.7 T Yes Yes Yes Yes GeV/c 3.8 5 5 10 m 480 600 600 1190 m 185 235 235 470 m 50 65 65 125 GeV/c

0.22

0.22 0.22 GeV/pass

0.95

0.95 0.56 MHz

325

325 201 GeV/pass

0.85

0.85 0.45 MHz

325

325 201 GeV/pass

1.6

MHz

201

Cooling No No 4D 4D MW 0.2 1 3 4 GeV 120 3 3 10 1!1021 0.1 41 125 25 Hz 0.75 70 70 50 Proton Beam Power Proton Beam Energy Protons/year Repetition Frequency Distance from Ring Mass Magnetic Field Distance from Ring Mass Magnetic Field Parameters Stored µ+ or µ-/year !e or !µ to detectors/yr Far Detector: Near Detector: Proton Source Perfor- mance Detector Neutrino Ring Acceleration 4.5-pass RLA Ring Momentum (Pµ) Circumference (C) Straight section Arc Length Initial Momentum Single-pass Linac RLA I RLA II CKM 2011

LBNE10 LBNE + Project X T2HK NuMAX NuMAX+ NuMAX+ 34kt LBNE

GLoBES 2013

Dd at 1s

q23=40È

10 20 30 40 50 0.0 0.2 0.4 0.6 0.8 1.0

Dd@°D Fraction of d

SLIDE 12

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Muon Collider Staging Scenerio

Staging Steps:

–

Higgs factory √s = mH ≃ 126 GeV

𝓜 = 1.7 x 1031 ~ 170 pb-1 /yr;

ΔE/E = 0.003%

𝓜 = 8 x 1031 ~ 800 pb-1 /yr;

ΔE/E = 0.004%

–

High Energy Muon Collider:

LHC at √s ≃ 14 TeV after 300 fb-1.

Muon collider design energy is

flexible. (ΔE/E = 0.1%)
√s = 1.5 TeV;

𝓜 =1.25 x 1034 ~ 125 fb-1 /yr;

√s = 3.0 TeV;

𝓜 = 4.4 x 1034 ~ 440 fb-1 /yr

√s = 6.0 TeV;

𝓜 =1.6 x 1035 ~ 1.6 ab-1 /yr 12

!"#"$%&%# '()&* !"#$"%&' (&)$#"*+,

$+.%/"*+,'

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µA 9<7 E< ; = G)#ADU)#A'-#$#A)")$'J'O- 7877< 787: 787X 787X

$+"+,'Y$*?)$'-+Z)$

1[ C! C C C !"##$%&'()*+,

./)"0123%4'$2/"52$
.*5%6*//"72+%4'$2/"52%8'+'92)2+$

0+%\.'U)3*,'+&)$#"*+,'Z*"V'-$+])/"'^'!"#3)':'U)#A

SLIDE 13

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

13

mµ me 2 = 4.28 × 10 4

A muon collider can directly produce the Higgs as an s-channel resonance.

–

Higgs couples to mass so rate enhanced by so the cross section is σ(µ+µ--> h) = 26 pb (for Δ=Γ and including ISR and a 15o forward cut.

–

To obtain the same sensitivity to Higgs decay modes in a electron collider via Zh process as s-channel production at a MC requires more than 100 times the integrated luminosity.

–

The excellent energy resolution Δ of a muon collider makes the process observable.

–

Results:

–

∆Br(µ+µ-)Br(WW*) ~ 2%

–

Finding the Higgs (5𝝉) requires 270 pb-1.

Muon Collider Higgs Factory

Channel δMH (MeV) δΓH (MeV) δBr(h → X) bb 0.1 0.4 0.05 WW ∗ 0.07 0.2 0.01 Combined 0.06 0.18 —

SLIDE 14

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

14

!"

#!

! !" !" * !" ) ! !" !"

*

R

ω ρ φ ρ J/ψ ψ(2S)

Υ Z

√s [GeV]

Beyond the Standard Model

New Z’, W‘

–

S-channel resonances - factories for lepton colliders

Additional scalars in all BSM ideas.
Two Higgs doublets (MSSM):

– Five scalar particles: h0, H0, A0, H± – Decay amplitudes depend on two parameters: (α, β) – decoupling limit mA0 >> mZ0 :

» h0 couplings close to SM values » H0, H± and A0 nearly degenerate in mass » H0 small couplings to VV, large couplings to ZA0 » For large tanβ, H0 and A0 couplings to charged leptons

and bottom quarks enhanced by tanβ. Couplings to top quarks suppressed by 1/tanβ factor.

– The LHC has difficulty in discovering H/A above 900 GeV even at √s = 14 TeV and 300 fb-1 – If H/A near present LHC bounds (≃300 GeV). The states can be cleanly separated because of the excellent energy resolution of the muon collider.

Born + elmg. Born + elmg. + QCD Born MSSM µ+µ− → b¯ b √s [GeV] σ [pb]

403 402 401 400 399 398 2 1.5 1 0.5

∆

D i t t m a i e r a n d K a i s e r [ h e p

p

h / 2 3 1 2 ]

SLIDE 15

Example of Natural SUSY

– Low-lying spectrum – For electroweakinos, sleptons, ... A ≥ 3TeV muon collider has discovery reach beyond a 100 TeV pp collider !

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

15

Beyond the Standard Model

SLIDE 16

19: Comparison of H/A resonance production at a Muon Collider with Z0h, Z0H a

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Beyond the Standard Model

Generally expect very heavy: H±, H0 and A0

–

LHC limits on H± : ~ 300 (ATLAS) (CMS)

–

SUSY models that evade the all present experimental constraints often have very heavy THDM scalars

The H/A are observable as s-channel

resonances at a MC! –

MH = MA ~ 1.5 TeV/c2 , Γ~ 15 GeV

–

Large tanβ ~ 20

–

Limited spectrum of SUSY particle decays.

–

Expect 106 H/A decays per 1 ab-1

The H/A resonances are a factory for study

BSM physics.

16

CLIC/MC MC

E.E and A. Martin (arXiv:1306.2609)

SLIDE 17

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Beyond the Standard Model

17

Electroweak Symmetry Breaking is generated dynamically at nearby scale

–

Technicolor, ETC, walking TC, topcolor, Two Scale TC, composite Higgs models, ...

–

New strong interaction at the Terascale:

What is the spectrum of low-lying states? s-channel production πT (technipion) (0-), ρT, ωT

(technirho, techniomega) nearly degenerate - needs good energy resolution

What is the ultraviolet completion? Gauge group? Fermion representations?
What is the energy scale of the new dynamics?
Any new insight into quark and/or lepton flavor mixing and CP violation?
Contact interactions

–

e.g. Compositeness, broken flavor symmetries, ...

–

Present LHC bounds ( ~ 10 TeV)

–

Muon collider sensitive to scales > 200 TeV

Forward cone cut not important
Polarization useful in determining chiral character of the

interaction.

100 200 300

[TeV]

LL RR RL LR VV AA V0 A0

1 ab-1, P-=0.8, e+e!!µ+µ-

CLIC(3 TeV): P+=0.6, "sys=0.5%, "L=0.5% LC (1TeV): P+=0.6, "sys=0.2%, "L=0.5% "P/P=0.5%

SLIDE 18

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Summary

The path from the intensity frontier back to the energy frontier has

physics at each step.

A staged Muon Collider can provide a Neutrino Factory to fully

disentangle neutrino physics.

The observation of a new state at 125 GeV by both ATLAS and CMS

revitalizes consideration of a Higgs factory as part of a staged multi-Tev muon collider. This is particularly attractive if there is an enlarged scalar sector (eg. THDM, SUSY)

The unique measurements of the Muon Higgs factory (4.2 fb-1)

–

Most precise measurement of Higgs mass: ΔmH = 0.06 MeV; direct Higgs width measurement: ΔΓH = 0.18 MeV; measurement of BR(µ+µ-) BR(WW*) to 2% and can separate nearly degenerate scalar resonances.

A multiTeV lepton collider will be required for full coverage of Terascale

physics.

–

The physics potential for a muon collider at √s ~ 3 TeV and integrated luminosity of 1 ab-1 is outstanding. Particularly strong case for SUSY and new strong dynamics.

–

Narrow s-channel states played an important role in past lepton colliders. If such states exist in the multi-TeV region, they will play a similar role in precision studies for new physics. 18

SLIDE 19

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

19

BACKUP SLIDES

SLIDE 20

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

What Happened to Naturalness?

Concept of naturalness.

–

K. Wilson, G. ‘t Hooft

–

A theory [L(µ)] is natural at scale µ ⇔ for any small dimensionless parameter λ (e.q. m/µ) in L(µ) the limit λ -> 0 enhances the symmetries of L(µ)

The SM Higgs boson is unnatural. (mH2/µ2)

–

Maybe no large gap in scales (Extra Dimensions)

Two potential solutions:

–

scalars not elementary

New strong dynamics (TC, walking TC, little Higgs, top color, ...)

–

fermion masses are natural

Symmetry coupling fermions and bosons (SUSY)
Quest for the “natural” theory to replace the SM has preoccupied theorists

since the early 80’s

Is a third way required after the discovery of a Higgs boson?

20

G. ‘t Hooft in Proceedings of

Recent Developments in Gauge Theories, Cargese, France (1980)

SLIDE 21

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Which Accelerator for Higgs Physics?

1. The LHC is the Higgs Accelerator - Continue -> HL-LHC

2. Continue research and development of lepton colliders. In particular the

muon collider needs a convincing proof of 6D cooling.

3. Push neutrino physics - Lepton sector
4. After 300 fb-1 of ~14 TeV running OR the discovery of BSM physics, chose

the next accelerator for Higgs physics.

21

New physics below √s = 1 TeV ? YES NO e+e- linear collider extendable to √s = 1 TeV e+e- circular collider in large tunnel --> hadron collider with √s ≥ 100 TeV muon higgs factory --> muon collider with √s ≥ 3 TeV Is a Muon Collider Feasible? NO YES

SLIDE 22

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

Staging Scenerio

A possible timeline

–

Project X Stages:

Stage I -> 1 GeV, 1 mA
Stage II -> 3 GeV, 3MW
Stage III -> 8 GeV
Stage IV -> 4MW

–

Decision points:

Finish ofMAP Feasibility

Assessment ~ 2018

Advanced System R&D makes

use of nuSTORM muon ring.

Decision point middle of

2020’s on collider program.

Program X Stage II can start

physics of neutrino or collider program. 22

$ $ U.S.$Muon$Accelerator$Program$

SLIDE 23

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

The LHC has difficulty observing the H, A especially for masses > 500 GeV

. Even at √s = 14 TeV and 300 fb-1.

Pair produced with easy at a multi-TeV lepton collider.

23

Beyond the Standard Model

SLIDE 24

Estia Eichten CSS 2013 @ Fermilab Aug 4, 2013

Fermilab

100 TeV pp Collider

100 TeV pp Collider (EHLQ)

24

1 TeV slepton pair ≈ 1 fb 2 TeV wino pair ≈ 4 fb