Highlights of LHC Run I and first 13 TeV results. Markus Klute (MIT) on behalf of ATLAS and CMS Linear Collider Workshop 2015 Whistler, Canada

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1 Highlights of LHC Run I and first 13 TeV results Markus Klute (MIT) on behalf of ATLAS and CMS Linear Collider Workshop 2015 Whistler, Canada

2 Large Hadron Collider - Run I and II Higgs Discovery LHCb ATLAS CMS ALICE LHC Run-II, 13 TeV

3 Higgs Boson Discovery Observation by ATLAS and CMS Summer 2011 Independent confirmation by two experiments and two final states ATLAS and CMS paper with more than 5000 citations each (> 4/day) End of 2011 Summer 2012 End of 2012 PDG review 3

Overview of Higgs Results Combined ATLAS and CMS measurements using LHC Run-1 dataset Precision (0.2%) limited by statistical uncertainty m H = 125.09 ± 0.21 (stat.) ± 0.

4 Overview of Higgs Results Combined ATLAS and CMS measurements using LHC Run-1 dataset Precision (0.2%) limited by statistical uncertainty m H = ± 0.21 (stat.) ± 0.11 (syst) GeV Established that particle masses and couplings to the Higgs boson relate Discovered particle looks in all aspects like the SM Higgs boson No additional Higgs bosons or BSM decays observed 4

Higgs Coupling Measurements ATLAS-CONF-2015-044 CMS-PAS-HIG-15-002 Coupling modifier measured

5 Higgs Coupling Measurements ATLAS-CONF CMS-PAS-HIG Coupling modifier measured with varying assumptions on total width Precision already ~10% for Z, W, and photon couplings 5

6 First Observation First B s μμ observation Combined CMS and LHCb analysis Concluded a three decade long search SM: BSM: Nature, 522, 68-72, 2015 arxiv:

7 Precision Top Mass Measurements CDF D0 ATLAS CMS Updated CMS combination yields: ± 0.13 ± 0.47 GeV 7

$minor fraction of the total LHC physics$

8 Precision Cross Sections More than 800 paper between ATLAS and CMS, not even counting LHCb and ALICE results Selected highlights are minor fraction of the total LHC physics program 8

9 LHC SUSY Searches 9 Similar picture from CMS

10 LHC Non-SUSY Searches LQ1(ej) x2 LQ1(ej)+LQ1(νj) LQ2(μj) x2 LQ2(μj)+LQ2(νj) LQ3(νb) x2 LQ3(τb) x2 LQ3(τt) x2 LQ3(vt) x2 Single LQ1 (λ=1) Single LQ2 (λ=1) RS1(γγ), k=0.1 RS1(ee,μμ), k=0.1 RS1(jj), k=0.1 RS1(WW 4j), k=0.1 CMS Preliminary SSM Z'(ττ) SSM Z'(jj) SSM Z'(bb) SSM Z'(ee)+Z'(µµ) SSM W'(jj) SSM W'(lv) SSM W'(WZ lvll) SSM W'(WZ 4j) e* (M=Λ) μ* (M=Λ) q* (qg) q* (qγ) b* coloron(jj) x2 coloron(4j) x2 gluino(3j) x2 gluino(jjb) x2 Leptoquarks RS Gravitons Heavy Gauge Bosons Excited Fermions TeV Multijet Resonances TeV TeV TeV TeV CMS Exotica Physics Group Summary Moriond, 2015! 10 stopped gluino (cloud) stopped stop (cloud) HSCP gluino (cloud) HSCP stop (cloud) q=2/3e HSCP q=3e HSCP chargino, ctau>100ns, AMSB neutralino, ctau=25cm, ECAL time j+met, vector DM=100 GeV, Λ j+met, axial-vector DM=100 GeV, Λ j+met, scalar DM=100 GeV, Λ γ+met, vector DM=100 GeV, Λ γ+met, axial-vector DM=100 GeV, Λ l+met, ξ=+1, SI/SD DM=100 GeV, Λ l+met, ξ=-1, SI/SD DM=100 GeV, Λ l+met, ξ=0, SI/SD DM=100 GeV, Λ ADD (γ+met), ned=4, MD ADD (j+met), ned=4, MD ADD (ee,μμ), ned=4, MS ADD (γγ), ned=4, MS ADD (jj), ned=4, MS QBH, ned=4, MD=4 TeV NR BH, ned=4, MD=4 TeV QBH (jj), ned=4, MD=4 TeV Jet Extinction Scale String Scale (jj) dijets, Λ+ LL/RR dijets, Λ- LL/RR dimuons, Λ+ LLIM dimuons, Λ- LLIM dielectrons, Λ+ LLIM dielectrons, Λ- LLIM single e, Λ HnCM single μ, Λ HnCM inclusive jets, Λ+ inclusive jets, Λ- Long-Lived Particles Dark Matter Large Extra Dimensions TeV 9 Compositeness TeV TeV TeV Similar picture from ATLAS

To watch out for We have a number of > 2σ deviations which might be first indication of new physics All have been vetted by the community and some generated considerable excitement Eyeballing the

11 To watch out for We have a number of > 2σ deviations which might be first indication of new physics All have been vetted by the community and some generated considerable excitement Eyeballing the probability to have a few 3σ deviations is NOT small. No detailed statistical evaluation has been performed These excesses are interesting highlights of Run I. Run II will clear the clouds and confusion 11

12 To watch out for in Higgs Lepton-Flavor-Violating Higgs searches CMS reports an excess of 2.5σ ATLAS has less sensitivity and also a few more events than expected arxiv: arxiv: CMS ATLAS 12

To watch out for in SUSY Search for SUSY in events with jets, missing ET, and

5σ excess for a lower mass non-resonant decay ATLAS saw a ~3σ excess when

13 To watch out for in SUSY Search for SUSY in events with jets, missing ET, and two leptons CMS saw a ~2.5σ excess for a lower mass non-resonant decay ATLAS saw a ~3σ excess when leptons came from a Z boson Neither confirmed by the other experiment events / 5 GeV Data/Bgnd CMS -1 Preliminary 19.4 fb (8 TeV) Data Background DY (data-driven) Sys. Stat m ll [GeV] m ll [GeV] Central Leptons 13

To watch out for in Exotics Another ATLAS and

14 To watch out for in Exotics Another ATLAS and CMS excess; ATLAS at 2.5σ Constistent(ish) with 2 TeV W -like particle Using boosted jets and hadronic W and Z boson tagging arxiv: arxiv: (84 citation since June) similar events in those two distributions 14

15 Commissioning Year 2015 peak lumi E34 cm -2 s -1 day of proton physics approx. int lumi [fb -1 ] 50ns 25ns 2015 ~ TeV Higgs 15

16 First 13 TeV Results Measurements of event properties and production rates The first of the first pseudorapidity distribution of charge hadrons inelastic cross sections arxiv: ATLAS-CONF

17 First 13 TeV Results: W and Z bosons Precision tests of QCD Constraints on proton structure Commissioning electrons, muons, and missing transverse energy Luminosity calibration not final ATLAS-CONF

18 First 13 TeV Results: Top top-pair production rate next year: 1Hz single-top 18

19 First 13 TeV Results: Jet Resonances M=5.2 TeV M=5.4 TeV 19

20 First 13 TeV Results: Jet Resonances Searches for black holes HT is sum of transverse momenta of all jets Superseded Run I results early in Run II 8.8 TeV invariant mass! 20 Run I energy Run I limit

21 First 13 TeV Results: Jet Resonances 8.8 TeV invariant mass! 21

22 First 13 TeV Results: W and Z searches electron-positron pair with di-lepton mass of 2.9 TeV 8.8 TeV invariant mass! 22

23 Exploiting the LHC Physics with the HL-LHC HL-LHC needs new technology in iteration region: Nb 3 SN 12T quadrupoles with 150mm aperture to shrink β* HL-LHC enables 20+ year program with large discovery potential Baseline detector upgrades endorsed. Experiments moving towards the developing of Phase-II TDRs 23

Exploiting the LHC Physics with the HL-LHC Run I Combination CMS projection 300fb -1, 14 TeV CMS projection 3000fb -1, 14 TeV Δκγ ΔκW ΔκZ Δκg Δκb Δκt Δκτ Δκμ 12 10 10 15 25 29 15 5 4 4 6 10 14 (9) 6

24 Exploiting the LHC Physics with the HL-LHC Run I Combination CMS projection 300fb -1, 14 TeV CMS projection 3000fb -1, 14 TeV Δκγ ΔκW ΔκZ Δκg Δκb Δκt Δκτ Δκμ (9) (4) 2 8 (5) Precision measurements of SM parameters, including the Higgs boson, and potentially of BSM parameter Sensitivity to rare SM & BSM processes Extension of discovery reach in high-mass region 24 CMS-PAS-FTR bbγγ Evidence and ~30% precision for di-higgs production combining multiple channel in ATLAS and CMS

25 Conclusion Fantastic results - in quality and quantity - from LHC Run I Exploration of Higgs Physics at the LHC on its way New information on Higgs physics expected in 2016 HL-LHC will set a high bar for Higgs physics Non-Higgs Run I searches yield null results Stringent limits on new physics And a handful of intriguing channels to look out for First 13 TeV (Run II) results on limited dataset available Understanding often already comparable to Run I First measurements completed, many searches under way Sensitivity of Run I and II comparable for m X = ~2 TeV HL-LHC enables a 20+ year research project with large discovery potential 25

How, Then, Will We Find BSM Physics? Gustaaf Brooijmans

How, Then, Will We Find BSM Physics? Experimental Thoughts What s new? LHC 3 era has started Hard to say how much data in 25: 5 fb - ±?? But 26 should be rich Higgs exists, light Naturalness: Increased