S. MuanzaMoriond QCD 2007 20 March 2007 Non SUSY Searches at the TEVATRON Run II OUTLINE I....

S. Muanza Moriond QCD 2007 20 March 2007

Non SUSY Searches at the TEVATRON Run II

OUTLINEI. INTRODUCTION II. FERMION SUB-STRUCTURE

• Search for Leptoquarks• Search for Leptons or Quarks Compositeness

III. EXTENDED GAUGE SYMMETRIES• Search for W’• Search for Z’

IV. EXTENDED NUMBER OF SPACE DIMENSIONS• Search for Randall-Sundrum gravitons• Search for Large Extra Dimensions

V. CONCLUSIONSVI. PROSPECTS FOR THE RUN II B

Steve MuanzaIPN Lyon, CNRS-IN2P3

on Behalf of the D0 & CDF Collaborations


NOTICE

• This talk is a NON EXHAUSTIVE overview of the numeroussearches for Exotic extensions of the SM at the TEVATRON Run II

• Each analysis status:• Prel.: preliminary• Acc.: accepted for publication• Pub.: already published

is mentioned in the last column of the tables. All exclusion limits are at the 95% CL

Not covered:• Technicolor• Littel Higgs• Model independent searches• CHAMPS• Monopoles,…


Extra D

SUSY

The Standard Model:• Gauge group: SU(3)c x SU(2)L x U(1)Y

• EWSB: the Higgs mechanism• Flavor symmetry: 3 generations of q & l• Space-Time symmetry: Poincaré group• Number of space D: 3

GUT

M-TheoryS-Strings

Compositeness

Technicolor

Little Higgs

4th generation fermions,excited fermions,LQ,…

techniparticles

SU(5), SO(10), E6, E8, …LQ, Z’, W’, …

Large, warped, TeV-1, UED,…

Higgs bosonssparticles

I. INTRODUCTION

Extending the SM

RGauginos / fermions TC

condensation

(3+1)-D [SU(2)L x U(1)Y

]N

N SU(2)L x U(1)Y

along the 4th space D

T, H triplet, W/Z/A,…


II. FERMIONS SUB-STRUCTURE

DECAY MODES:

Main search channels at the TEVATRON:

(0<i<4: generation index)

)( qLQBR

1)( qLQBR

iiiiii qqLQLQpp

iiiiii qqLQLQpp

iiiiii qqLQLQpp

PRODUCTION @ HADRON COLLIDERS:

• q+qbar LQ+LQbar• g+g LQ+LQbar• q+g LQ+l (smaller )

• independent of for SLQ (except for single LQ)=> (S,MSLQ)

• depends on 2 parameters G and G for VLQ

=> SVLQGG

SMGUT Compositeness

1. Search for LeptoQuarks

2

)1(2

2)1(


1. Search for LeptoQuarks

D0 CDF

• most results concern scalar LQ (simply denoted LQ) • just one result concerns vector LQ (denoted VLQ)


Channel Lint (pb-1) Status

VLQ3 pairs2+2b 322 06 Prel.

LQ2 pairs 2+2j 198 04 Pub

LQ2 pairs +2j 198 04 Pub

LQ1 pairs e+2j 200 04 Pub

LQ1 pairs e++2j 200 04 Pub

LQ1 pairs 2+2q 191 03 Pub

Scalar LQ1 pairs : comb. 3 analyses above

~200 05 Pub.

Scalar LQ2 pairs : comb. 2 analyses above

~200 06 Pub.


LQ2 pairs ++2q 1050 07 Prel.

LQ3 pairs 2+2b 310 06 Prel.

LQ2 pairs 2+2q

LQ2+ 2+q

300 06 Acc.

LQ pairs 2+2q 370 06 Pub.

LQ2 pairs 2+2q 290 06 Pub.

LQ1 pairs 2e+2q

LQ1 pairs e++2q

252 04 Pub.

DetailedNote


Search for SLQ2

• D0: • Analysis: LQ2 pairsjets

• Triggers: single • Data sample: 1050 pb-1

• Instr. background: QCD from data• Event selection:

• exactly 1 hard & isolated • 2 hard jets and large mET

• large mT(, mET) and large HT

• Main BKGD: W()+jets• Uncert.: int. L, ), B norm., …

• Results: • Hyp:=0.5• Signal window: |mLQ +/-100 GeV|• Nobs= 6• Nexp(B)=6.4+/-0.7 +/-0.8• (S)=7.9+/-0.1+/-0.7 (mSLQ2 =200 GeV)mSLQ2>214 GeV

Reco’d mSLQ2


Searches for VLQ3 pairs

• CDF: • Analysis:

VLQ3 pairs 2+2b1 had., 1 e/

• Data sample: 322 pb-1

• Triggers: • lepton+tracks• +1 hard e/• +1 -had

• Event selection:• very large HT:pT(h+pT(l)+pT(b)+pT(b)+mET

• Uncert.: ISR, FSR, -ID, isolation,…

• Results: Hyp: Y-M coulings & =100%

e+had +had

Channel Nobs Nexp(B)

e+had+2b 0 0.25+0.22-0.08

+had+2b 0 0.24+0.23-0.07

mLQ3>251 GeV (Min. couplings)

mLQ3>317 GeV (Y-M couplings)



2. Search for Leptons & Quarks Compositeness

SM

Compositeness

Gauge Mediation O(1%)

• Parameters: • : comp. Scale• m(f*): mass of excited fermion• L: factors of left-handed currents

•Modifications of the */Z cross section:

42*

2

cos

CIf

dMd

dSM

jj

gCI 2

2

2L

Contact Interaction O(99%)

hceBY

gfWfgE

LR

]

2''

2[

2

L

• Parameters:• compositeness scale • f and f’ that depend on the composite dynamics• Me*

)(

**''**'

RLhc

ffffffj LLLLLLLLL

Ref.: U. Baur et al, Phys. Rev. D42 (1990) 815-824

O. Cakir et al., Eur. Phys. JC32S2 (2004) 1



2. Search for Leptons & Quarks Compositeness

D0


e* e+ 1000 07 Prel.

q*q+Z(ee) 370 06 Pub.

*+ 380 06 Pub.

qqbarC 400 05 Prel.

qqbaree (CI) 271 04 Prel.

QCD Incl. Jet 800 06 Prel.


*+ 371 06 Pub.

QCD Incl. Jet 1040 06 Prel.

CDF

Detailed


Search for Excited

• D0: • Analysis: qqbar


• Triggers: di-muons• Event selection:

• 2 hard (at least 1 isolated)• +1 hard & isolated

• Uncert.: trigger reco & ID,…

• Results:• m(*)>618 GeV for =1 TeV

m

m(GeV)

(TeV)

CI


Search for Excited e

• D0: • Analysis: qqbar e*e ee

• Data sample: 1 fb-1

• Triggers: single e & di-e• Event selection:

• at least 2 hard & isolated e• +1 hard & isolated CC or EC)• optimization: m(e) and R(e2,)

• Uncert.: QCD estimation, fake rate, PDF, …

• Results:• m(e*)>756 GeV for =1 TeV (CI)• m(e*)>793 GeV for =m(e*) (CI)

me


Inclusive Jet Cross Section

• CDF: • Analysis: QCD d/dydpT

• Data sample: 1.04 fb-1

• Triggers: j20, j50, j70, j100• Samples processing:

• Theory: NLO from EKS• Data:

• particle lvl corr. + unfolding• parton lvl corr.

• Event reconstruction:• midpoint 0.7 cone jets

• Event selection:•|y|<2.1• low mET significance•|zPV|<60 cm

• Uncert.: PDF, scale, UE & fragm.,…• Results:

• no explicit limit on comp. scale or m(q*)• yet, no excess at the highest pT ever probed


III. EXTENDED GAUGE SYMMETRIES

1. Search for W’

• Larger gauge group (E6, SO(10),…)• Hypotheses:

• No gauge mixing• Same CKM as in SM• DK into light

• WW

WW m

m '

' 3

4

SMGUT

L. Higgs

Ext. TC

Extra-D2. Search for Z’

• Larger gauge group: E6

• Z’cosZsin• suppose SM-like couplings

zz

zzm

m '

'

)1()1()5()1()10(6 UUSUUSOE

YLC USUSUSU )1()2()3()5(


III. EXTENDED GAUGE SYMMETRIES

1. Search for W’

2. Search for Z’


W’e 205 06 Pub.

CDF


W’e 900 06 Prel.

D0


Z’ee 200 04 Prel.

Z’ 250 04 Prel.


Z’ee 1288 07 Prel.

Z’ 200 04 Prel.

Z’ 195 04 Prel.

Detailed


Search for W’

• D0: • Analysis: W’e

• Triggers: single e• Data sample: 900 pb-1


• at least 1 central, hard and isolated ew/ track match (but no E/p)• large mET significance

• Uncert.: norm., corr., PDF, EM scale, QCD scaling,…

• Results: • shape of mT tail above 150 GeV• Nobs= 630• Nexp(B)=622.93+/-17.91+82.65

-72.25

• Nexp(S)=16.64+/-0.39+6.86-6.06

(mW’= 900 GeV)mW’>965 GeV


Search for Z’

• CDF: • Analysis: Z’ee (G2• Triggers: di-EM• Data sample: 1288 pb-1

• MC:• Signal (Pythia):

• E6 (S=1) • and separately RS (S=2)

• Physics BKGD (Pythia)• Main BKGD:*/Zee

• Event selection: • 2 hard & isolated e (CC-CC or CC-EC)• track match for CC e

• Uncert.: lumi, PDF, ISR, (e ID),…

• Results: Mee tail above 150 GeV


Comb ee+

m(Z’)>923 GeV SM-like

m(G)>807 GeV (0.1)m(G)>889 GeV (0.1)


IV. EXTENDED NUMBEROF SPACE DIMENSIONS

2. Search for Randall-Sundrum Gravitons

1. Search for Large Extra-Dimensions

SM

Extra-D

ADD• 2 to 7 large (sub mm) EDs• gravity propagates freely in the bulk• KK excitations cannot be resolved• parameter: G =F/MS

4 (GRW: F=1)

RS • one 5th (infinite) ED with warped geometry• gravity is localized on a brane other than the SM brane• KK excitations have spacings of order TeV• parameters:

• M1: mass of the 1st KK excitation• 0.01 < )1/2/MPl < 0.1

GKK

gq

q GKK

gg

g

V

V

GKKGKK

f

ff

f

monojets

2int

*)(cos

2

GKKfGfSMfdMd

d


IV. EXTENDED NUMBEROF SPACE DIMENSIONS

1. Search for Large Extra-Dimensions

Channel Lint (pb-1) Date

qqbarG+g 85 04 Prel.

Gee/ 200 04 Prel.


qqbarG+g 1100 06 Prel.

2. Search for Randall-Sundrum Gravitons


Gee (see Z’) 1288 07 Prel.

G(see Z’) 200 04 Prel.

G 1200 06 Prel.

CDFD0


Gee/ 1000 06 Prel.

Detailed


Search for LED

• CDF: • Analysis: qqbar/g+g G+g, q+g G+q

• Triggers: j100• Data sample: 1100 pb-1

• Event selection: • remove events from:beam halo, cosmics • 1 very hihg pT jet: CC, track confirmed• pT(j2)<60 GeV

• Main BKGD: Z()+jets• Uncert.: PDF, ISR/FSR, JES,…

• Results: • Nobs= 779

• Nexp(B)=819+/-71


VII. CONCLUSIONS

• Many topologies have been covered

• Many analyses have been (or are being) updated to the full Run IIA dataset…

• Yet no evidence of New Physics…

Exclusion Limits


Search for LeptoQuarksSummary

D0 CDF

Channel Lint (pb-1) Limits (GeV)

VLQ3 pairs2+2b 322 317294 (=1) Y-M couplings

251223 (=1) Min. couplings

LQ1 pairs : comb. ~200

/channel

236 (=1)

205 (=0.5)

126 (=0)

LQ2 pairs : comb. ~200

/channel

226 (=1)

208 (=0.5)

125 (=0)


LQ2 pairs ++2q 1050 214 (=0.5)

LQ3 pairs 2+2b 310 219 (=0)

LQ2 pairs 2+2q

LQ2+ 2+q

300 274 (=1)

226 (=0.5)

(=1)

LQ pairs 2+2q 370 136 (=0)

LQ2 pairs 2+2q 290 251 (=1)

204 (=0.5)

LQ1 pairs 2e+2q

LQ1 pairs e++2q

252 241, 256 (=1)

218, 234 (=0.5)

Comb

.

Comb. w/ Run IRun II Alone

Th. Uncert. signal


Search for Leptons & Quarks Compositeness Summary

D0


q*q+Z(ee) 370 510

*+ 380 618

=1 TeV

qqbarC 400 >4.2 TeV ()

>9.8 TeV ()

qqbaree (CI) 271 >3.6 TeV ()

>9.1 TeV ()

QCD Incl. Jet 800 No excess


*+ 371 ~800

=1 TeV

QCD Incl. Jet 1040 No excess

CDF

Search for W’Summary

Channel Lint (pb-1) Limit (GeV)

W’e 205 788


W’e 900 965


Search for Z’Summary CDFD0


Z’ee 200 780 (SM-like)

Z’ 250 680 (SM-like)


Z’ee 1288 923 (SM-like)

Z’ee/Comb.

200 815 (SM-like)

Z’ 195 400 (SM-like)

Channel Lint (pb-1) M1 Limit (GeV)

Gee/

1000 865 (0.1)

240 (0.01)

k()1/2/MPl

Channel Lint (pb-1) M1 Limit (GeV)

Gee/Comb.

~1288 889 (0.1)

267 (0.01)

Gee/Comb.

200 700 (0.1)

200 (0.01)

E6 Z’

R-S


Search for Z’Summary CDFD0

Channel Lint (pb-1) MS Limit (TeV)

Gee/ 200 1.36 (Run IIA)

1.43 (Run I+IIA)

N=2

qqbar G+g 85 0.68 (N=4)

0.67 (N=5)

0.66 (N=6)

0.68 (N=7)

GRW Conventions

LED

Channel Lint (pb-1) MS Limit (TeV)

R (mm)

<

qqbar G+g 1000 1.33 (N=2)

1.09 (N=3)

0.99 (N=4)

0.92 (N=5)

0.88 (N=6)

0.27

3.1x10-6

9.9x10-9

3.2x10-10

3.1x10-11


VI. PROSPECTSFOR THE RUN II B

Z’

LEDCDF

D0

As of sept. 05 (P5)

1, fbLdt

Run II B… or LHC?


BACK-UP


Run(TeV) (fb-1)

I1992-1996

1.8 0.1

II A2001-2006

1.96 1.0

II B2006-2009

1.96 3.0-7.0

s Ldt

s5.3

Xt

ns396

ns396

The TEVATRON

This talk

Now


TEVATRON Luminosity

Instantaneous

Integrated


New @ Run IIa (tracking in B-field)

Silicon detectorFiber tracker, preshowers

Upgraded @ Run IIa Muon system, CAL

Electronics DAQ, (track) trigger

system Displaced-vtx trigger

p

Electronics

Tracker Solenoid Magnet

3 LayerMuon System

Preshowers

p

The D0 Detector


The CDF Detector

Addition or Improvments for the Run IIA• Si tracker• Central drift chamber• TOF• Secondary vertex trigger

Addition or Improvments for the Run IIA

• Forward calorimeters: "plugs" (1<||<3)

• Extended coverage


Run II A

<DAQ> ~ 80-85%

This talk:200-1300 pb-1

The TEVATRON Performances

I. INTRODUCTION


Searches for SLQ1/2 pairs

•D0: • Analysis: LQ pairs 2+2q

• Triggers: jets+mET


• Instr. background: QCD estimated from data • Event selection:

• at least 2 hard and acoplanar jets• no flavor tagging• large mET & HT

• Uncert.: Syst(B) ~ Stat(B) (JES),…

• Results: • Nobs=86

• Nexp(B)=75.2+14.6-15.5

• Nexp(S)=51.8+5.9-4.9

(mLQ =140 GeV)mLQ>136 GeV (95% CL)


Searches for SLQ1/2 pairs

• CDF Combination: • Analyses:

• 3 topologies 2l+jets, l+jets+mET, jets+mET

• for both LQ1 and LQ2 pair production• Bayesian combined likelihood

• Data samples: each ~200 pb-1

• Results: LQ1

LQ2

Channel Nobs Nexp(B) Main BKGD

2e+2q 4 6.24+/-2.16 ttbar

Z+jets

e+2q 4 5.4+/-1.2 ttbar

2+2q 2 2.87+/-1.0 Z+jets

+2q 3 3.74+/-0.62 ttbar

+2q 124 118.5+/-14.5 Z+jets

mLQ =160 GeV

mLQ =160 GeV


Searches for SLQ3 pairs

• D0: • Analysis: SLQ3 pairs 2+2b


• Triggers: jets+mET & +jets• Instr. background: QCD from data• Event selection:

• at least 2 hard acoplanar jets• large mET & HT

• reject isolated EM-clusters & isolated • 2 jets b-tagged

• Uncert.: BKGD , (b-tag), JES,…

• Results:

Nobs=1

Nexp(B)=3.47+/-0.24

Nexp(S)=8.8+/-0.2, =10.6% (mLQ =200 GeV)

QCD

Presel. mET

Final mET

mLQ3>213 GeV


Search for Excited • CDF:

• Analysis: qqbar *


• Triggers: incl. • Event selection:

• 2 hard & isolated • +1 hard & isolated

• Uncert.: and ID, PDF, trigger ,…

• Results:

• Hyp: CI BR(*) same as in GM • m(*)>853 GeV for =m(*in CI• m(*)>237 GeV for =m(*) in GM

• Comparison wrt D0:• Hyp: BR(includesCI• CDF: m*696 GeV for m* • D0: m(*)>688 GeV for =m(*)

m


Search for W’• CDF:

• Analysis: W’e

• Triggers: incl. e• Data sample: 205 pb-1


• 1 hard & isolated e• large mET

• cut on pT(e)/mET

• Uncert.: PDF, e E-scale & resolution, ISR,…

• Results:• shape of mT tail above 200 GeV


Search for LED

Very nice CDF monojet candidatepT (j)=384 GeV & mET =390 GeVRun 155313, Event 273486


Large ED Searches at Colliders

4107.9

36.3

248.0

1102.1

1

12

12

nm

nnm

nmm

nm

R

TeVM D

Eöt-Wash Experiment Test Newton’s Law downto

Ref: Adelberger et al, PRL 86 (2001))200( mO

ED Nbers and Radii

nSS

Pln MM

MR

1)(

8

1 2


Large ED Searches at Colliders

Courtesy of Eot-Wash group

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S. MuanzaMoriond QCD 2007 20 March 2007 Non SUSY Searches at the TEVATRON Run II OUTLINE I....

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