How to tell apart non-standard EWSB mechanisms. Veronica Sanz CERN and YORK Moriond PDF Free Download

How to tell apart non-standard EWSB mechanisms Veronica Sanz CERN and YORK Moriond 2012

In this talk What is standard? EWSB by elementary scalar(s) includes SM and SUSY What is non-standard? EWSB by -composite scalar - no scalar at all includes Little Higgs, Extra-Dimensions and Technicolor

Composite Scalar - Motivation What if there is a Higgs? Light scalar Need stabilization mechanism (or we have no clue about QFT) Symmetries Fermionic SUSY Bosonic Goldstone since SUSY may not be there to save the day Higgs as a PGB like the pion of QCD composite Higgs

Composite Scalar - Realizations Composite Higgs is realized in Little Higgs, Extra-Dimensions and Technicolor symmetry PGB -Little Higgs, TC: new 4D symmetry -Extra-dimensions: SM 5D gauge= 4D gauge+gb

Composite Scalar-Generic features scalar resonance WW unitarization non-sm scalar: deviations ξ = v2 f 2 degree of fine-tuning Giudice, Grojean, Pomarol and Rattazzi ʻ07 Theory study 300 ifb @ 14 TeV for ξ> 0.2 4πf f composite Higgs already unitarize WW ξ 0 SM-like v generic features are too SM-like

Composite Scalar-Common features s=1 ex. Z, ρ TC, Z KK not crucial for WW scattering

Composite Scalar-Common features s=1 ex. Z, ρ TC, Z KK not crucial for WW scattering new gauge symms?

Composite Scalar-Common features s=1 ex. Z, ρ TC, Z KK not crucial for WW scattering new gauge symms? s=2 ex. G KK, f TC 2 Extra-Dimensions and TC-type see next

Composite Scalar-Common features s=1 ex. Z, ρ TC, Z KK not crucial for WW scattering new gauge symms? s=2 ex. G KK, f TC 2 Extra-Dimensions and TC-type see next s=1/2 ex. T, Q KK, techni-baryons New heavy quarks mix with SM quarks

How to tell apart a graviton from an impostor? Guimaraes, Fok, Lewis, VS in preparation i.e. massive spin-2 resonance = smoking gun of extra-dimensions?

How to tell apart a graviton from an impostor? Guimaraes, Fok, Lewis, VS in preparation i.e. massive spin-2 resonance = smoking gun of extra-dimensions? G KK-graviton Ĝ TC-type impostor

How to tell apart a graviton from an impostor? Guimaraes, Fok, Lewis, VS in preparation i.e. massive spin-2 resonance = smoking gun of extra-dimensions? G KK-graviton Ĝ TC-type impostor propagation

How to tell apart a graviton from an impostor? Guimaraes, Fok, Lewis, VS in preparation i.e. massive spin-2 resonance = smoking gun of extra-dimensions? G KK-graviton Ĝ TC-type impostor propagation Pauli-Fierz Pauli-Fierz

How to tell apart a graviton from an impostor? Guimaraes, Fok, Lewis, VS in preparation Ĝ couplings?

How to tell apart a graviton from an impostor? Guimaraes, Fok, Lewis, VS Ĝ couplings? in preparation Lorentz and gauge no dimension-4

How to tell apart a graviton from an impostor? Guimaraes, Fok, Lewis, VS Ĝ couplings? in preparation Lorentz and gauge flavor and CP invariant no dimension-4 dimension-5 same as in T µν

How to tell apart a graviton from an impostor? Guimaraes, Fok, Lewis, VS Ĝ couplings? in preparation Lorentz and gauge flavor and CP invariant no dimension-4 dimension-5 same as in T µν Ĝ couples like G same spin determination How do we distinguish them?

How to tell apart a graviton from an impostor? Guimaraes, Fok, Lewis, VS R g/γ = Br( gg) Br( γγ) = 8c2 g c 2 γ in preparation In any extra-dimension of the type ds 2 = w(z) 2 (η µν dx µ dx ν dz 2 ) example UED,RS G : R g/γ =8 Ĝ can produce any other ratio

How to tell apart 1st generation RH or LH compositeness? Composite baryons and elementary quarks mix Martin and VS JHEP (2010) Redi,VS, Weiler in preparation L mixing = λ u L,R u L,R Ū L +(u d) y λ L λ R 1st generation compositeness! Flavor? MFV if composite sector flavor invariant Left-handed compositeness: λ Lu Id, λ Ld Id λ Ru y u, λ Rd y d Right-handed compositeness: λ Lu y u, λ Ru Id, λ Ld y d λ Rd Id Redi, Weiler 11

How to tell apart 1st generation RH or LH compositeness? Composite baryons and elementary quarks mix Martin and VS JHEP (2010) Redi,VS, Weiler in preparation L mixing = λ u L,R u L,R Ū L +(u d) y λ L λ R 1st generation compositeness! Flavor? MFV if composite sector flavor invariant Redi, Weiler 11 MFV half of the proton could be composite

How to tell apart 1st generation RH or LH compositeness? Signature: single production heavy quark q Q ρ LH compositeness RH compositeness W,Z Q Q q

How to tell apart 1st generation RH or LH LH compositeness compositeness? Martin and VS JHEP (2010) W,Z Q q

How to tell apart 1st generation RH or LH LH compositeness compositeness? Martin and VS JHEP (2010) Q W,Z ATLAS-PH-EP-2011-193. Lepton channel w/ 1 ifb. q EW production

How to tell apart 1st generation RH or LH compositeness? RH compositeness Looking at current bounds and discovery prospects Redi,VS, Weiler in preparation Q BGs: multijet, W+jets, Z+jets, top pair and single top ATLAS-PH-EP-2011-154 Rejection: exclude dijet near W or Z and veto b-tagging, cut on leading jet QCD generated with ALPGEN -> PYTHIA signal xsecs mq=1 TeV, mg=2 TeV Log 10 (σ(fb)) 4 3 m G = 2 TeV 2 m G = 3 TeV 1 m G = 4 TeV 500 1000 1500 2000 m Q (GeV )

How to tell apart 1st generation RH or LH compositeness? RH compositeness Redi,VS, Weiler in preparation We use two methods: deltar and leading jet optimized for high-low mq -1 Number of Events for 10 fb 500 400 300 200 100 QCD Signal 0 0 500 1000 1500 2000 2500 3000 3500 4000 m 3j (GeV)

No Scalar-Generic features Realized in warped extra-dimensions and TC-type s=1 resonances do unitarize WW scattering THE problem: S parameter solutions do not abound Non-calculable, ignore TCSM Eichten, Lane Phys. Lett. B 89 Mechanisms to cancel, warped models Cured Higgsless (s=1)-(s=1/2) cancellation Holographic TC s=1 cancellation Cacciapaglia et al Phys. Rev. D 05 Hirn,VS Phys. Rev. Lett. 06

How to tell apart scenarios of dynamical EWSB? In dileptons... Banerjee, Martin and VS JHEP (2012) 1. Invariant mass 1200 1000 TCSM HTC CHL 3 10 CHL Arbitary Units 800 600 400 200 0 550 600 650 700 750 800 850 900 (GeV) m + - l l Arbitary Units 10 2 10 1 Z KK 1 0 200 400 600 800 1000 1200 (GeV) m + - l l Z2 KK MG> PYTHIA> ATLFAST and DELPHES @7 TeV

How to tell apart scenarios of dynamical EWSB? 2. Charge asymmetry A charge = N( η > 0) N( η < 0) N( η > 0) + N( η < 0) Banerjee, Martin and VS JHEP (2012) η = η l + η l eta asym is a good measure of chirality can tell V,A admixture Vector (R=L) Non-vector (R=(1/3)L) ( ) 2 A V A 2 + V 2 500 Chiral (R=0) 0.25 400 0.20 Arbitary Units 300 200 0.15 0.10 100 0.05 0.1 0.2 0.3 0.4 0-2.5-2 -1.5-1 -0.5 0 0.5 1 1.5 2 2.5! l + -! l - "# $%&# A after simulation

Conclusions Non-standard EWSB ideas abound and have a very rich phenomenology. May not be easy to discover by just looking at scalar EWSB sector. Need correlations with other signals. Tell apart Extra-Dimensions from TC-type: gravitons and its impostor Tell apart 1st gen RH or LH compositeness in multijets Tell apart different scenarios of DEWSB in dileptons

Operators

ratio to gluons gluon-jet from quark-jet? 1. most models: G coupling to light quarks suppressed 2. Angular correlations dσ (q q G) = d cos θ 1 + ( ) c2 θ 1 4s 2 θ to fermions = 1 c 4 θ to gluons, 3. Tag light jet using Galliccio-Schwartz techniques

How to tell apart non-standard EWSB mechanisms. Veronica Sanz CERN and YORK Moriond 2012