Report on the Workshop: "From the LHC To Future Colliders"
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1 Report on the Workshop: "From the LHC To Future Colliders" Georg Weiglein IPPP Durham Tsukuba, 04/2009 Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.1
2 Introduction: on the way to the TeV scale 1 TeV 1000 m proton m mev Temperature / Energy ev kev MeV GeV TeV Atomic physics Nuclear physics Particle physics Cathode ray tube Cyclotron LEP, SLC Tevatron ILC, LHC W, Z Higgs W, topz SUSY Higgs Extra Dimensions Inflation CMB BBN Baryogenesis photon Neutrino WIMP Decoupling Decoupling Decoupling Lambda Matter Radiation dominated now 10^17 10^12 10^6 1 Time (s) 10^ 6 10^ 12 Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.2
3 What can we learn from exploring the new territory of TeV-scale physics? How do elementary particles obtain the property of mass: what is the mechanism of electroweak symmetry breaking? Do all the forces of nature arise from a single fundamental interaction? Are there more than three dimensions of space? Are space and time embedded into a superspace? Can dark matter be produced in the laboratory?... Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.3
4 Hints from electroweak precision data? SM Higgs: ew. prec. data + direct search at LEP & Tevatron [LEPEWWG 09] [TEVNPH Working Group 09] χ March 2009 Theory uncertainty α had = α (5) ± ± incl. low Q 2 data m Limit = 163 GeV 95% CL Limit/SM 10 Tevatron Run II Preliminary, L= fb -1 LEP Exclusion Expected Observed ±1σ Expected ±2σ Expected Tevatron Exclusion 1 Excluded Preliminary m H [GeV] 1 SM March 5, m H (GeV/c 2 ) Preference for a light Higgs Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.4
5 Global CMSSM fit using indirect experimental and cosmological constraints Global χ 2 fit in the Constrained MSSM (CMSSM): m 1/2, m 0, A 0 (GUT scale), tan β, sign(µ) (weak scale) Fit includes (MasterCode, Markov-chain Monte Carlo sampling): [O. Buchmueller, R. Cavanaugh, A. De Roeck, J. Ellis, H. Flächer, S. Heinemeyer, G. Isidori, K. Olive, P. Paradisi, F. Ronga, G. W. 08] All observables used in the SM fit of the LEPEWWG + Cold dark matter (CDM) density (WMAP,... ), Ω CDM h 2 = ± (g 2) µ + BPO: BR(b sγ), BR(B s µ + µ ), BR(B τν),... + Kaon decay data: BR(K µν),... Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.5
6 Indirect limits on the light Higgs mass in the CMSSM EWPO + BPO + dark matter constraints χ 2 fit for M h, without imposing direct search limit [O. Buchmueller, R. Cavanaugh, A. De Roeck, S. Heinemeyer, G. Isidori, P. Paradisi, F. Ronga, A. Weber, G. W. 07] 2 χ 4 SM CMSSM 3.5 arxiv: LEP excluded [GeV] Accurate indirect prediction; Higgs just around the corner? Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.6 m H
7 Comparison: preferred region in m 0 m 1/2 plane vs. LHC discovery reach 68% and 95% C.L. contours from the fit vs. LHC discovery reach for 1, 0.1, 0.05 fb 1 of understood data [O. Buchmueller, R. Cavanaugh, A. De Roeck, J. Ellis, H. Flächer, S. Heinemeyer, G. Isidori, K. Olive, P. Paradisi, F. Ronga, G. W. 08] m 1/2 [GeV] τ LSP 1 1/fb tanβ = 10, A 0 = 0, µ > 0 jets + MET (CMS) 0 lepton + 4 jets (ATLAS) 1 lepton + 4 jets (ATLAS) SS 2µ (CMS) m 1/2 [GeV] τ LSP 1 jets + MET (CMS) tanβ = 10, A 0 = 0, µ > 0 14 TeV 14 TeV 10 TeV 500 Higgs (2/fb ) (CMS) full CMSSM 300 parameter space 68% C.L % C.L. 100 NO EWSB m 0 [GeV] 400 full CMSSM 300 parameter space 68% C.L % C.L. 100 NO EWSB m 0 [GeV] Preferred region would lead to early discovery Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.7
8 Early LHC data: shaping the future of particle physics Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.8
9 Early LHC data: shaping the future of particle physics Results from the LHC will drastically improve our knowledge of TeV scale physics Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.8
10 Early LHC data: shaping the future of particle physics Results from the LHC will drastically improve our knowledge of TeV scale physics Complexity and size of possible future accelerator experiments need to plan ahead for future programme Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.8
11 Early LHC data: shaping the future of particle physics Results from the LHC will drastically improve our knowledge of TeV scale physics Complexity and size of possible future accelerator experiments need to plan ahead for future programme LC status so far: there is a strong physics case for a 500 GeV LC as the next step beyond the LHC, even before we know what the LHC will tell us (consensus documents,... ) Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.8
12 Early LHC data: shaping the future of particle physics Results from the LHC will drastically improve our knowledge of TeV scale physics Complexity and size of possible future accelerator experiments need to plan ahead for future programme LC status so far: there is a strong physics case for a 500 GeV LC as the next step beyond the LHC, even before we know what the LHC will tell us (consensus documents,... ) Early LHC data shape the future of particle physics We will need to reassess our future options in the light of results of the LHC Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.8
13 Early LHC data: shaping the future of particle physics Results from the LHC will drastically improve our knowledge of TeV scale physics Complexity and size of possible future accelerator experiments need to plan ahead for future programme LC status so far: there is a strong physics case for a 500 GeV LC as the next step beyond the LHC, even before we know what the LHC will tell us (consensus documents,... ) Early LHC data shape the future of particle physics We will need to reassess our future options in the light of results of the LHC and the Tevatron Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.8
14 Early LHC results: a possible window of opportunity Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.9
15 Early LHC results: a possible window of opportunity Exciting results from the early LHC data could open up a window of opportunity for securing a long-term future of the field: possibility to bring a new major facility on the way Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.9
16 Early LHC results: a possible window of opportunity Exciting results from the early LHC data could open up a window of opportunity for securing a long-term future of the field: possibility to bring a new major facility on the way The particle physics community will have to act quickly and speak with a unanimous voice: We will need to come up with a convincing and scientifically solid conclusion on how to proceed Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.9
17 Early LHC results: a possible window of opportunity Exciting results from the early LHC data could open up a window of opportunity for securing a long-term future of the field: possibility to bring a new major facility on the way The particle physics community will have to act quickly and speak with a unanimous voice: We will need to come up with a convincing and scientifically solid conclusion on how to proceed It is useful to discuss possible ways ahead already before the first LHC data become available Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.9
18 What will we know after the first 10 fb 1 of data at the LHC? Early LHC data: 10 fb 1 Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.10
19 What will we know after the first 10 fb 1 of data at the LHC? Early LHC data: 10 fb 1 Need to discuss possible signatures rather than to assume certain models Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.10
20 What will we know after the first 10 fb 1 of data at the LHC? Early LHC data: 10 fb 1 Need to discuss possible signatures rather than to assume certain models Whatever the early LHC results will look like, they will definitely rule out many models of new physics Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.10
21 What will we know after the first 10 fb 1 of data at the LHC? Early LHC data: 10 fb 1 Need to discuss possible signatures rather than to assume certain models Whatever the early LHC results will look like, they will definitely rule out many models of new physics But it is expected that there will still be significant room for interpretation concerning the nature of new physics Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.10
22 Possible scenarios of early LHC results Detection of a state in the first 10 fb 1 of LHC data with properties that are compatible with those of a Higgs boson (either SM-type or non SM-type) + anything else No observation in the first 10 fb 1 of LHC data of a state with properties compatible with a Higgs boson (+ anything else) Detection of new states of physics beyond the Standard Model: leptonic resonances multi-gauge-boson signals missing energy (+nothing, leptons, jets) all other signatures of new states of BSM physics Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.11
23 First Workshop: The LHC early phase for the ILC, April 12 14, 2007, Fermilab Focus was on implications for the ILC; workshop charge: What could be the impact of early LHC results on the choice of the ultimate ILC energy range and the ILC upgrade path? Could there be issues that would need to be implemented into the ILC machine and detectors design from the start? Could there be cases that would change the consensus about the physics case for an ILC with an energy of about 500 GeV? What are the prospects for LHC / ILC interplay based on early LHC data? Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.12
24 CERN Theory Institute: "From the LHC to Future Colliders", February 9 27, 2009, at CERN Organisers: Albert De Roeck, John Ellis, Christophe Grojean, Sven Heinemeyer, Karl Jakobs, G. W., James Wells Goals: Past: Discuss recent physics developments Present: Anticipate near-term capabilities of Tevatron, LHC and other experiments Future: Have discussions on the most effective ways to be prepared for giving science input to plans of the post-lhc era Considered future options for accelerator-based facilities at the TeV scale beyond the first phase of the LHC: SLHC, ILC, CLIC, LHeC, Muon Collider,... Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.13
25 LHC luminosity upgrade: the SLHC SuperLHC (SLHC): upgrade of LHC design luminosity by a factor of 10 to about cm 2 s 1 Moderate extension of LHC mass reach More precise measurements of processes that are statistically limited Extended reach for rare processes Difficult experimental environment: higher radiation levels in the detectors, increased pile-up background Upgrades of ATLAS and CMS required Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.14
26 DLHC: energy doubling of the LHC Double beam energy to 14 TeV? DLHC needs new magnets new machine Significant increase of LHC search reach, but very good physics justification from future data needed Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.15
27 LHeC: electron proton collisions in the LHC tunnel Ring-Ring (RR) vs. Linac-Ring (LR) option RR: energy limited (70 GeV), better prospects for higher luminosity LR: energy not physics limited, 140 GeV; which luminosity can be reached with how much electrical power? Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.16
28 LHeC: Linac-Ring option [M. Klein, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.17
29 LC: ILC and CLIC [K. Desch, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.18
30 LC: ILC and CLIC [K. Desch, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.19
31 LC: ILC and CLIC [K. Desch, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.20
32 LHC2FC Workshop Programme Future Colliders Series: technology status and physics case 4 Working Groups, investigate for different signatures: How well do the observed signatures in the early LHC data constrain the possible physics scenario? What could be the impact of early LHC results on the choice of the next facility and its (ultimate) energy reach and luminosity? What would be the possible implications for the machine and the detector design? How would additional LHC luminosity further constrain / support the scenario and the choice of the future facility? What are the prospects for an interplay with results from the LHC, low-energy experiments and cosmological data? Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.21
33 WG 1: Detection of a state with properties that are compatible with a Higgs (SM-like or non-sm-like) Convenors: [Sally Dawson, Sven Heinemeyer, Chiara Mariotti, Markus Schumacher] measurement of mass and spin, quantum numbers self-couplings precision top studies and electroweak precision physics... Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.22
34 WG2: No Higgs signal No Higgs candidate in the first 10 fb 1 at the LHC (+ anything else) Convenors: [Georges Azuelos, Christophe Grojean, Mark Lancaster, G. W.] gauge boson self-couplings longitudinal vector boson scattering exotic Higgs scenarios invisibly decaying Higgs scenarios... Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.23
35 WG 3: Missing energy (+ nothing, leptons, jets) Convenors: [Ben Gripaios, Filip Moortgat, Gudrid Moortgat-Pick, Giacomo Polesello] measurement of mass and spin, quantum numbers dark matter / connection with cosmology... Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.24
36 WG 4: Other new signatures Convenors: [Tao Han, JoAnne Hewett, Albert De Roeck, Sabine Riemann] Leptonic resonances multi-gauge-boson signals measurement of mass and spin, quantum numbers leptoquark-type signatures flavour physics fourth generation-type signatures, exotic quarks TeV scale gravity-type signatures other possible signatures of new physics Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.25
37 LHC2FC Workshop More than 100 participants, very lively meeting Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.26
38 LHC2FC Workshop More than 100 participants, very lively meeting The workshop is not over yet Reports of the four working groups are currently being prepared (10 20 pages each) The aim is to have a document containing the four working group reports and overall introduction / conclusions sections by middle of June; will be submitted to the arxiv and possibly appear as a CERN Yellow Report In the following: some examples of issues discussed at the CERN meeting; far from a comprehensive coverage Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.26
39 A light Higgs candidate at the LHC [C. Mariotti, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.27
40 A light Higgs candidate at the LHC Initial information from the LHC: From decay to γγ or ZZ ( ) mass From production in WBF or decay to WW ( ), ZZ ( ) gauge coupling is present Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.28
41 A light Higgs candidate at the LHC Initial information from the LHC: From decay to γγ or ZZ ( ) mass From production in WBF or decay to WW ( ), ZZ ( ) gauge coupling is present new state will be produced at the LC in the HZ mode Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.28
42 A light Higgs candidate at the LHC Initial information from the LHC: From decay to γγ or ZZ ( ) mass From production in WBF or decay to WW ( ), ZZ ( ) gauge coupling is present new state will be produced at the LC in the HZ mode Bonanza for a < 350 GeV LC ( HTLC ): comprehensive info on the properties of the new state + top physics + GigaZ +... Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.28
43 HZ production at the ILC [K. Desch, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.29
44 If a Higgs candidate has been detected: Is it a Higgs boson? experimental questions What are its mass, spin and CP properties? What are its couplings to fermions and gauge bosons? Are they really proportional to the masses of the particles? What are its self-couplings? Are its properties compatible with the SM, the MSSM, the NMSSM,...? Are there indications that there are more than one Higgs bosons? Are there indications for other new states that influence Higgs physics? Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.30
45 Example: Higgs coupling determination LHC: no absolute measurement of total production cross section (no recoil method like LEP, ILC: e + e ZH, Z e + e,µ + µ ) Production decay at the LHC yields combinations of Higgs couplings (Γ prod, decay g 2 prod, decay ): σ(h) BR(H a + b) Γ prodγ decay Γ tot, Large uncertainty on dominant decay for light Higgs: H b b LHC can directly determine only ratios of couplings, e.g. g 2 Hττ /g2 HWW Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.31
46 Higgs coupling determination at the LHC Absolute values of the couplings at the LHC can be obtained with an additional (mild) theory assumption: [M. Dührssen, S. Heinemeyer, H. Logan, D. Rainwater, G. W., D. Zeppenfeld 04] g 2 HV V (g2 HV V )SM, V = W,Z Upper bound on Γ V Observation of Higgs production Lower bound on production couplings and Γ tot Observation of H V V in WBF Determines Γ 2 V /Γ tot Upper bound on Γ tot Absolute determination of Γ tot and Higgs couplings Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.32
47 Intermediate mass Higgs, M H < 180 GeV, at the LHC [C. Mariotti, LHC2FC Workshop 09] Higgs can be studied when produced via gg fusion and via WBF In the region GeV, LHC can measure very well the couplings to ZZ,WW Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.33
48 Intermediate mass Higgs, M H < 180 GeV, at the LHC [C. Mariotti, LHC2FC Workshop 09] Higgs can be studied when produced via gg fusion and via WBF In the region GeV, LHC can measure very well the couplings to ZZ,WW But: For a Higgs decaying into WW ( ),ZZ ( ), this region may soon be excluded by the Tevatron In the lower mass range ( GeV) also γγ and τ + τ couplings can be explored The couplings below 150 GeV crucially depend on the possibility to measure H b b Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.33
49 Measurement of the couplings [C. Mariotti, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.34
50 Measurement of the couplings [C. Mariotti, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.35
51 Higgs couplings: what precision do we need? [C. Mariotti, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.36
52 The Higgs as a composite object Renewed interest in composite Higgs models, mostly from extra dimensions [N. Arkani-Hamed, A. Cohen, H. Georgi 01] [K. Agashe, R. Contino, A. Pomarol 05],... Composite Higgs: light remnant of a strong force Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.37
53 The Higgs as a composite object Renewed interest in composite Higgs models, mostly from extra dimensions [N. Arkani-Hamed, A. Cohen, H. Georgi 01] [K. Agashe, R. Contino, A. Pomarol 05],... Composite Higgs: light remnant of a strong force Relation extra dimensions new strong forces? Correspondence (AdS/CFT): Warped gravity model Technicolour-like theory in 4D Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.37
54 The Higgs as a composite object Renewed interest in composite Higgs models, mostly from extra dimensions [N. Arkani-Hamed, A. Cohen, H. Georgi 01] [K. Agashe, R. Contino, A. Pomarol 05],... Composite Higgs: light remnant of a strong force Relation extra dimensions new strong forces? Correspondence (AdS/CFT): Warped gravity model Technicolour-like theory in 4D Signatures at LHC: new resonances, W, Z, t, KK excitations Under pressure from electroweak precision tests Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.37
55 Effective field-theory description of a composite Higgs Agreement with electroweak precision data can be improved if there is a strongly interacting light Higgs, e.g. Little Higgs [N. Arkani-Hamed, A. Cohen, E. Katz, A. Nelson 02] Holographic Higgs [R. Contino, Y. Nomura, A. Pomarol 03], [K. Agashe, R. Contino, A. Pomarol 05],... Effective Lagrangian formalism for model-independent analysis of effects of a Strongly-Interacting Light Higgs (SILH) [G. Giudice, C. Grojean, A. Pomarol, R. Ratazzi 07] Specific pattern of modified Higgs couplings Strong W W scattering at high energies despite light Higgs Need precision measurement of Higgs couplings + test of longitudinal gauge-boson scattering Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.38
56 Strongly-Interacting Light Higgs: deviation of σ BR from the case of a SM Higgs [G. Giudice, C. Grojean, A. Pomarol, R. Ratazzi 07] Sensitivity at LHC: 20 40%, ILC: 1% ILC can test scales up to 30 TeV Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.39
57 High-mass Higgs, M H > 180 GeV [C. Mariotti, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.40
58 Possible options: No Higgs candidate in the first 10 fb 1 at the LHC Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.41
59 No Higgs candidate in the first 10 fb 1 at the LHC Possible options: There is a Higgs boson (or more than one), but it has non-standard properties that make it difficult to detect: Suppressed couplings to gauge bosons and / or fermions Higgs decays into jets, invisible Higgs decays,... Examples: MSSM with complex parameters, NMSSM, Higgs radion mixing,... Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.41
60 No Higgs candidate in the first 10 fb 1 at the LHC Possible options: There is a Higgs boson (or more than one), but it has non-standard properties that make it difficult to detect: Suppressed couplings to gauge bosons and / or fermions Higgs decays into jets, invisible Higgs decays,... Examples: MSSM with complex parameters, NMSSM, Higgs radion mixing,... There is really no Higgs boson: Technicolour-like models, BESS models,... Higgsless models in extra dimensions Impact on longitudinal vector boson scattering, gauge boson self-couplings: anom. couplings, resonances,... Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.41
61 Scenarios with a light Higgs that is unexcluded by LEP searches [G. Azuelos, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.42
62 Example: MSSM with CP-violating phases [G. Azuelos, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.43
63 Scenarios without a fundamental Higgs [G. Azuelos, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.44
64 Non-standard couplings at the LHC [G. Azuelos, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.45
65 Resonances at the LHC [G. Azuelos, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.46
66 Sensitivity at ILC and CLIC [G. Azuelos, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.47
67 Non-standard couplings: ILC and CLIC [G. Azuelos, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.48
68 Strong scattering at the LHC: purely leptonic [G. Azuelos, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.49
69 Sensitivity to signals od strong EWSB [G. Azuelos, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.50
70 Summary on scenarios without a Higgs candidate in the early LHC data [G. Azuelos, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.51
71 Missing energy signatures SUSY thresholds at the LC: SPS1a scenario [K. Desch, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.52
72 Spin measurements at the LHC [F. Moortgat, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.53
73 LC: Determination of chiral quantum numbers [K. Desch, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.54
74 CP-violating effects at LHC and LC [G. Moortgat-Pick, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.55
75 Global fit for MSSM low-energy parameters: precision observables + LHC + ILC [P. Bechtle, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.56
76 Summary on missing energy signatures [F. Moortgat, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.57
77 Other new signatures [A. De Roeck, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.58
78 Z studies [A. De Roeck, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.59
79 Summary on Z -like objects [A. De Roeck, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.60
80 The top quark as a tool for new physics searches [A. De Roeck, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.61
81 Heavy charged stable particles [A. De Roeck, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.62
82 Non-pointing photons [A. De Roeck, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.63
83 4th-generation quarks at the LHC A hint from the Tevatron? [A. De Roeck, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.64
84 Leptoquarks at LHeC [E. Perez, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.65
85 Contact interactions at CLIC [A. De Roeck, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.66
86 Indicative physics reach of future colliders [A. De Roeck, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.67
87 To-do list for WG4 write-up [A. De Roeck, LHC2FC Workshop 09] Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.68
88 Conclusions Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.69
89 Conclusions The main future option beyond LHC / SLHC remains a Linear Collider (ILC / CLIC), with a likely first phase at 500 GeV or below; intense discussions at the workshop Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.69
90 Conclusions The main future option beyond LHC / SLHC remains a Linear Collider (ILC / CLIC), with a likely first phase at 500 GeV or below; intense discussions at the workshop Much less activity on the other options Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.69
91 Conclusions The main future option beyond LHC / SLHC remains a Linear Collider (ILC / CLIC), with a likely first phase at 500 GeV or below; intense discussions at the workshop Much less activity on the other options LC performance (machine and detector(s)) & cost will be crucial factors Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.69
92 Conclusions The main future option beyond LHC / SLHC remains a Linear Collider (ILC / CLIC), with a likely first phase at 500 GeV or below; intense discussions at the workshop Much less activity on the other options LC performance (machine and detector(s)) & cost will be crucial factors A Workshop Report is in preparation Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.69
93 Conclusions The main future option beyond LHC / SLHC remains a Linear Collider (ILC / CLIC), with a likely first phase at 500 GeV or below; intense discussions at the workshop Much less activity on the other options LC performance (machine and detector(s)) & cost will be crucial factors A Workshop Report is in preparation Looking forward to exciting results from the LHC! Report on the Workshop: From the LHC To Future Colliders, Georg Weiglein, TILC09, Tsukuba, 04/2009 p.69
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