Charged 2014

1. Eilam Gross, Weizmann Institute of Science Apologies: There were many great talks. I have learnt a lot. There is no way to cover it all in 30 minutes. So I concentrated on the mutual experimentalist/theorist lessons learnt If I did not include your presentation in my summary it does not mean it was not important or excellent….. I had to choose what suits the talk agenda. Charged 2014 cHarged 2014 Summary Talk, Eilam Gross, Weizmann

2. Introductory Remarks • cHarged’12 was right after the Higgs discovery • cHarged’14 is two years after Higgs discovery… Run 1 is over. We know a lot more…In particular about mass and couplings • The cHarge for this conference summary talk is an experimentalist cHarge : • Can we expect to discover a cHarged Higgs before any other BSM (in particular SUSY)? or How light can HPLus be? • Alignment vs Decoupling – an Important subtlety • What can we tell on heavy scalars prospects from the hitherto measurements of the Higgs @ the LHC (Precision vs Direct) • The experimental frontier and its readiness cHarged 2014 Summary Talk, Eilam Gross, Weizmann

3. A Wealth of Signatures • There can be many signatures when searching for cHarged Higgs LESSON O. Stal • Don’t disregard searches that appear to have low sensitivity • (nicely said, but I am afraid won’t work….) cHarged 2014 Summary Talk, Eilam Gross, Weizmann

4. Direct Experimental Searches&MC Tools cHarged 2014 Summary Talk, Eilam Gross, Weizmann

5. The Interplay • Experimentalists cannot produce reliable results without a precise understanding of the expected background (for discovery) and the expected signal (when limits are produced) • Theorists cannot fully explore their ideas without the input from the experimentalists. • What about 160<mH+<200 GeV? • This is the overlap region (“Its difficult to tell theories what to do, you must motivate them” S. Heinemeyer) What can be more motivating then such an empty playground? • One needs to do a full 23 process calculation @ NLO • Who’s the One? Karol Kovarik cHarged 2014 Summary Talk, Eilam Gross, Weizmann

6. The Tools Karol Kovarik Olivier Mattelaer • The goal is automation, be it 4f or 5f scheme. • However, sometimes you prefer the 4f scheme (say you tag a b in the final state) and sometimes 5f scheme is the only acceptable one (if the b is included in the pdf)… • The problem is not only to match between the 4f and 5f scheme (one scheme exists, the Santander matching) but the systematics applied to the prediction, which can affect the experimental result (in particular the exclusion sensitivity) in a dramatic way. • Work is going on in all frontiers to automate the processes in NLO targetting 2HDM Celine Degrande cHarged 2014 Summary Talk, Eilam Gross, Weizmann

7. This is not easier than NNLO • A lot of emphasis was put on BG modeling from data. • Here, to estimate the Z𝝉𝝉 BG, ATLAS and CMS use embedding. It reduces the systematics due to normalization, pile up, jets or simulation. • Yet embedding is a very delicate issue that should be handled with care due to potential biases. McCarn A. Kopp MattiKortelainen cHarged 2014 Summary Talk, Eilam Gross, Weizmann

8. Direct Searc for Charged Higgs PietroVischia A. Zucchetta A. Kopp cHarged 2014 Summary Talk, Eilam Gross, Weizmann

9. H+tb • CMS just published an analysis on H+tb • The production of signal is using Pythia, they will “check everything for the paper…..” • No systematics for 4f vs 5f (might change the distribution of the discriminator ) P. Vischia cHarged 2014 Summary Talk, Eilam Gross, Weizmann

10. H+cs G. Kole C. Sandoval • Big mystery… • How come the results are comparable? • We will probably never know…. NO LESSON Now that we have cs, tb and 𝝉v, its probably a good idea to interpret results within various models using the BR sum rule. IN short, increase sensitivity via combining! LESSON cHarged 2014 Summary Talk, Eilam Gross, Weizmann

11. H+Wh A New Explored Signature • Sensitivity is very weak C. Sandoval McCarn William Keller LESSON • More such cascades should be searched for and explored to cover these specific cHarged Higgs decay modes cHarged 2014 Summary Talk, Eilam Gross, Weizmann

12. Constraints from Precision Measurements cHarged 2014 Summary Talk, Eilam Gross, Weizmann

13. Discovered Particle Measurements • The discovered particle is perfectly consistent with Jp=0+ • Mass~125 GeVATLAS m=124.5±0.5(stat)±0.06(sys) CMS m=125.6±0.4(stat)±0.2(syst) • The mass is known to high accuracy (limited by statistics) and it is essential for both the decay mode BRs and the couplings measurements. • The mass is miraculous , we were lucky to have a Higgs with a mass allowing a rich decay spectrum and is compatible with SUSY. • This scalar can be taken as the light or heavy Higgs (depends on the scenario) in searches for Higgs multiplets BSM • Unfortunately, so far, the discovered particle shows no deviation from the SM Higgs C.Kourkoumelis P. Jez cHarged 2014 Summary Talk, Eilam Gross, Weizmann

14. An Immediate Implication of PM P. Sales de Bruin cHarged 2014 Summary Talk, Eilam Gross, Weizmann

15. An Immediate Implication of PM P. Sales de Bruin LESSON The light (heavy)125 GeV Scalar Should be taken Into account As a Constraint and conclusions should be drawn in accordance Benchmarks have indeed Changed, but Experiments still sticktoold benchmarks cHarged 2014 Summary Talk, Eilam Gross, Weizmann

16. Couplings P. Jez • The couplings to Vectors and Fermions is a probe to physics BSM. • In 2HDM, for example • Here , kV is measure to within 15%(assuming SM Higgs width) • Couplings can be used as precisionmeasurements and set constraints on variousBSM models (or benchmarks) • This is incredible! • What can we learn from it? cHarged 2014 Summary Talk, Eilam Gross, Weizmann

17. Decoupling vs Alignment • Indeed but this does not imply automatically that H,A and H+ are Heavy, degenerate and decoupled in the MSSM. • Z1 and Z6 are coefficients of terms in the 2HDM Lagrangian in the Higgs basis. • mH>>Z1v2Decoupling Z6~0Alignement • At tree level alignment is impossible (tgβ values make no sense) • However with MSSM and radiative corrections, an accidental cancellation can occur such that the numerator is ~0 Private Communication H. Haber and O. Stal cHarged 2014 Summary Talk, Eilam Gross, Weizmann

18. Decoupling vs Alignment • Alignment in MSSM allows 3 mass scales • SM<2HDM<SUSY  SUSY exist , yet, charged Higgs discovered first. Isn't that cute? Private Communication H. Haber and O. Stal LESSON In this specific scenario(mhalt) precision allows light mA while Direct searches exclude it mA>350 GeV ALIGNMENT At tgβ~16 LESSON Precision measurements anddirect searches complement each other Direct cHarged 2014 Summary Talk, Eilam Gross, Weizmann

19. B-Physics Precision Constraints Valery Pugatch Andreas Crivellin cHarged 2014 Summary Talk, Eilam Gross, Weizmann

20. B-Physics Precision Constraints Valery Pugatch Andreas Crivellin LESSON These are 95% Confidence Intervals, one should do a fit to take into account a possible fluctuation in one measurement cHarged 2014 Summary Talk, Eilam Gross, Weizmann

21. B-Physics Constraints Valery Pugatch Andreas Crivellin LESSON These measurements should be taken into account But, with lots of care Never give up a direct measurement Just because some B decay precision measurement does not motivate it cHarged 2014 Summary Talk, Eilam Gross, Weizmann

22. Is SUSY in Agony? M.J. Ramsey-Musolf T. Serre cHarged 2014 Summary Talk, Eilam Gross, Weizmann

23. What’s the 2HDM Motivation • Experimentalists also like to be motivated! • But… Somebody has already said that “all well motivated models have been excluded by now” • Why 2HDM? • The sort answer: “Because” • The long answer: “Why Not?” (Why not 3HDM?) • But perhaps it is more serious than that Stefano Moretti cHarged 2014 Summary Talk, Eilam Gross, Weizmann

24. What’s the 2HDM Motivation • 2HDM can explain much better the CP violation • Some theorists claim a lack of cut-clear motivation for 3 generations in the SM • Lack of FCNC motivate the softly broken Z2 symmetry • Which, when drafted to give mass to fermions give rise to various 2HDM types, and in particular the famous type I,II,LS and FLIPPED • And that makes life in 2HDM extremely interesting. • MSSM is just one implication of type II, but other types give us, the experimentalists, a rich possible spectrum of particles to search for, which maybe no less appealing than “sad Susy” and other exotic animals. And they allow for accessible low mass Higgs Bosons M.J. Ramsey-Musolf Stefano Moretti LESSON cHarged 2014 Summary Talk, Eilam Gross, Weizmann

25. Type II and MSSM • Type II ⇒MSSM • But • MSSM ⇏ Type 2 • Type 2 2HDM does not contain SUSY particles in the loops. • This is a delicate distinction • As a result: 2HDM type II is more constrained than MSSM • Yet, when interpreting results, both are important LESSON O. Stal cHarged 2014 Summary Talk, Eilam Gross, Weizmann

26. Charm and Bottom Tag will Help • The various types behave in a complementary way, a real coverage can only be achieved if we use heavy flavour tags LESSON G. Kole For type 2 and FLIPPED cb dominates over cs at high tg beta (also true for 3HDM) cb/cs Oscar Stal Typ2,FLIP Type 1,LS Stefano Moretti cHarged 2014 Summary Talk, Eilam Gross, Weizmann

27. Interpretations cHarged 2014 Summary Talk, Eilam Gross, Weizmann

28. Killing the Wrong Sign • In type II and type FLIPPED , taking α to –α, we get an agreement with sin(α-β)~1 also for the wrong sign of αsin(α+β)~1 • (kukV<1 or kdkV<1) • If we measured kγto 5% the wrongsign might be excluded. R. Santos sin(β - α) = 1 sin(β + α) = 1 I think it is no problem to do It already now, combining allchannels to exclude kukV<1 or kdkV<1 cHarged 2014 Summary Talk, Eilam Gross, Weizmann

29. MSSM (type II) Oscar Stal LESSON • Need to take SUSY decays of the Higgs into account cHarged 2014 Summary Talk, Eilam Gross, Weizmann

30. MSSM Interpretations • Recently every model gets its benchmarks • The pioneer of benchmarks was MSSM • But why do we still use irrelevant benchmarks • Here (mod) the light Higgs is filling the whole parameter space Sven Heinemyer cHarged 2014 Summary Talk, Eilam Gross, Weizmann

31. Low mH (Heavy Higgs=125) LESSON Sven Heinemyer PietroSlavich • RIP low mH scenario. Low mH Scenario • severely challenged, BUT that is a theoretician’s fit • and he himself casted a doubt on it ….. cHarged 2014 Summary Talk, Eilam Gross, Weizmann

32. Deep Exclusion for Light Charged Higgs • mH+=130 excluded in mhmax but BRs do not strongly depend on scenario LESSON PietroSlavich cHarged 2014 Summary Talk, Eilam Gross, Weizmann

33. Go Wild cHarged 2014 Summary Talk, Eilam Gross, Weizmann

34. Doubly Charged Higgs F. Nutti • Every model should be explored.A doubly charged Higgs (DCH) is a smoking gun for exotic BSM models, LR symmetric models and more. • A fine example of presenting results so various interpretations can be done in your favorite model, is a fiducial upper limit on the cross section differeniated with respect to the same sign di-lepton pair mass cHarged 2014 Summary Talk, Eilam Gross, Weizmann

35. Resurrect SUSY Florian Staub • MSSM does not work? • You do not like 2HDM, 3HDM, NHDM? • No problem, add degrees of freedom! • Extend…. Add CPV, add singlets (NMSSM….), Triplets(TMSSM…) • Just obey the rules of the game • Go beyond Tree Level • Make sure your model agrees with the data ( mh=125 at the one loop…..) • Do not patch good and old, yet, unfit MC, there are plenty of modern possibilities in the market (or write your own one that suits best your model) • Check vacuum stability • Watch the flavour cHarged 2014 Summary Talk, Eilam Gross, Weizmann

36. Request from Theoreticians • And……. • If you want us, the experimentalists to spend resources, make us curious, motivate us in our language • Theoretical motivations are not intriguing enough. Tell us where and what to look for and convince us it might not be completely useless. • Spend time on studying and suggesting detailed signatures and convince us they are well motivated, feasible and will take science a small step forward…. • Some examples: • Higgs Portal (ATLAS studied DM within the Higgs portal) 𝛄𝛄τυ, 𝛄𝛄bb • ATHDM: H+Wbb, W𝛄 Victor Iiisie • NMSSM: hAA/HH4b,2b2𝝉,4𝝉 Florian Staub • CPV 2HDM: ppH3H+W-𝝉vWGiovanni Marco Pruna LESSON M.J. Ramsey-Musolf ShoaibMunir cHarged 2014 Summary Talk, Eilam Gross, Weizmann

37. Finally • We have learnt many lessons in this conference • cHarged Higgs is one of THE smoking gunn for physics BSM. • It appears naturally in multiplet extensions of the SM, triplets, doublets. • Its most motivated appearance is within type 2, 2HDM, MSSM • But alas…. We might have to give up the main motivation for SUSY, naturality. • And then, in a natural way, everything goes (as long as it agrees with the data), “why not?”. cHarged 2014 Summary Talk, Eilam Gross, Weizmann

38. and Finally • It will be much easier to convince the funding agencies to support new machines, if this machine does more than setting limits and strengthen the SM nature of the discovered Higgs Boson. • Unfortunately, nature wrote the book of creation , not us. • However, we already have signs for BSM physics (CPV, Neutrino masses, DM), we just need not to give up, strengthen and enrich them and make the case. • Our time, luminosity, and center of mass energy are limited. • Let theoreticians suggest the signatures, help with the tools and calculations, and let experimentalists design sophisticated analyses to increase the sensitivities…. Why not? Who knows? • After all, HE-HL LHC is an ideal probe, to test physics at the TeV scale. And as we saw today, its coming. Lucio Rossi Susan GasconShotkin Flera RIZATDINOVA cHarged 2014 Summary Talk, Eilam Gross, Weizmann