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Interplay between Flavour Physics and LHC - Tools and Applications

This presentation discusses the interplay between flavour physics and the Large Hadron Collider (LHC). It showcases available tools and their potential applications in interpreting LHC discoveries. The talk also emphasizes the importance of complementary data and the role of precision measurements in understanding new physics.

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Interplay between Flavour Physics and LHC - Tools and Applications

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  1. Toolsand potential applications Frédéric Ronga (CERN) Coseners forum on Heavy Flavour Physics June 22, 2007 Contents • Interplay between flavour Physics and LHC • Quick tour of available tools • New common tool development

  2. Complementarity and synergy • Flavour in the era of the LHC: November 2005 – March 2007 • “a workshop on the interplay of flavour and collider Physics” • Continued activities https://twiki.cern.ch/twiki/bin/view/Main/ColliderAndFlavour • Example interplay • interpretation of potential LHC discoveries • constraints on discovery potential (already today!) Interplay between flavour Physics and LHC F. Ronga (CERN) – Coseners forum – June 22, 20072

  3. LHC discovery reach in the MSSM sector From O. Buchmüller 4 Higgs observable at LHC 3 Higgs observable at LHC 2 Higgs observable at LHC 1 Higgs observable at LHC MSSM: 5 Higgs Bosons Neutral: h,H (CP-even); A (CP-odd) Charged: H+ H- (one observable) Large region where only the light SM-like h can be detected. Only in a relatively small region of phase space where all four Higgs bosons can be discovered Adding information from discoverable sparticles will help in the interpretation of the undetectable heavy Higgs sector. Yet, an unambiguous MSSM parameter extraction over the entire phase space cannot be guaranteed. Also the potential upgrade to SuperLHC (~3000 fb-1) does not change this conclusion (red line in plot). Though it would help to reduce the undetectable phase space. Interplay between flavour Physics and LHC F. Ronga (CERN) – Coseners forum – June 22, 20073

  4. Interpretation of New Physics Discoveries Key ingredients: Direct discoveries & all other data • Direct discoveries of new particles • at the LHC • at a high energy linear collider (ILC) “All other data” • Low Energy (precision) data: • Flavour Physics (e.g. B Physics) • Other low energy observables (e.g. muon magnetic moment g-2) • High Energy (precision) data • Precision electroweak observables (e.g. mW, mtop, etc.) • Cosmology/Astroparticle data • e.g. relic density constraints Interplay between flavour Physics and LHC F. Ronga (CERN) – Coseners forum – June 22, 20074

  5. B Physics observables From G. Isidori, FLHC workshop, http://indico.cern.ch/conferenceDisplay.py?confId=12011 Interplay between flavour Physics and LHC F. Ronga (CERN) – Coseners forum – June 22, 20075

  6. Quick tour of available tools

  7. Preliminary remarks • Compilation by tools subgroup of FLHC WG2 (B/D/K decays) • Not a reference… not exhaustive! • See forthcoming yellow report for details http://flavlhc.kek.jp/cernWS_0507/WG2/WG2.html Thanks to Sven Heinemeyer for the input… • Variety of flavour-related tools • Various models • Various assumptions • Different inputs • Different outputs (!) • Various languages (Fortran 77, Fortran 90, C, C++) • Not all available yet • Common interface would help • public availability (for comparison, systematic studies, etc.) • consistent use (e.g. in high-energy Physics community…) • comprehensive inclusion of all experimental constraints (more on that later) Quick tour of available tools F. Ronga (CERN) – Coseners forum – June 22, 20077

  8. Flavour-related tools • KK mixing, BB mixing, bs, bsll • L. Silvestrini et al., hep-ph/0603114 • Next to minimal flavour violation (NMFV) MSSM • Input parameters at “soft scale” • B Physics observables • G. Isidori, P. Paradisi, hep-ph/0605012 • MFV MSSM • Input parameters at “soft scale” • BRs, FB asymmetries in rare B and K decays • C. Bobeth, et al., hep-ph/0505110 • SM, SUSY, CMFV (constrained MFV) • Input parameters include scales • FCNC observables • P. Chankowski, S. Jäger, J. Rosiek, hep-ph/0408142 • MSSM • Input as in SLHA2 (not interfaced) Quick tour of available tools F. Ronga (CERN) – Coseners forum – June 22, 20078

  9. Higgs-related tools • FC Higgs/top decays • S. Bejar, J. Guasch, hep-ph/0307144 • Two-Higgs-Doublet model • Input/output similar to SLHA2 • FeynHiggs – Higgs phenomenology • S. Heinemeyer, T. Hahn, W. Hollik, G. Weiglein, hep-ph/0403228 • (N)MFV MSSM, CPV MSSM • Fully SLHA2compatible http://www.feynhiggs.de • FCHDECAY – FCNC Higgs decays • S. Bejar, J. Guasch, hep-ph/0601191 • NMFV MSSM • Fully SLHA2compatible http://fchdecay.googlepages.com Quick tour of available tools F. Ronga (CERN) – Coseners forum – June 22, 20079

  10. Cosmology tools • DarkSUSY – SUSY dark matter calculations • P. Gandolo et al., astro-ph/0406204 • MSSM • No interface to SLHA http://www.physto.se/~edsjo/darksusy/ • MicrOMEGAs – Relic density + bs, bsll, g–2 • G. Bélanger, F. Boudjema, A. Pukhov, A. Semenov, hep-ph/0607059 • (N)MSSM, CPV MSSM • Fully SLHA2compatible http://lappweb.in2p3.fr/lapth/micromegas/ Quick tour of available tools F. Ronga (CERN) – Coseners forum – June 22, 200710

  11. Spectrum generators • SoftSusy – SUSY spectrum generator • B. Allanach, hep-ph/01040145 • NMFV MSSM (+ high-scale constraint, e.g. mSUGRA) • Fully SLHA2compatible http://projects.hepforge.org/softsusy/ • Suspect – SUSY spectrum generator • A. Djouadi, J.-L. Kneur, G. Moultaka, hep-ph/02113331 • MSSM (+ high-scale constraint) • Fully SLHA2compatible http://www.lpta.univmontp2.fr/users/kneur/Suspect/ • SPheno – SUSY spectrum generator + some flavour observables • W. Porod, hep-ph/0601191 • NMFV MSSM (+ high-scale constraint) • Fully SLHA2compatiblehttp://ific.uv.es/~porod/SPheno.html Quick tour of available tools F. Ronga (CERN) – Coseners forum – June 22, 200711

  12. Towards a common input/output? • SUSY Les Houches Accord (SLHA – now version 2) • Text-file based interface between tools • Consistent definition of observables (on agreement…) • Flexible and extendable “block” structure • Version 2 to include flavour Physics • Reference: P. Skands et al., JHEP 0407 (2004) 036Latest draft available under http://home.fnal.gov/~skands/slha/ • Interfaces • SLHAlib: Fortran I/O libraries (T. Hahn) publicly available (http://www.feynarts.de/slha/) • SLHAio: C++ library w/C,Fortran bindings (S. Kreiss) – under development (http://www.svenkreiss.com/SLHAio/) • A good way to make calculations available! • Happy to help (technically…) Quick tour of available tools F. Ronga (CERN) – Coseners forum – June 22, 200712

  13. Example SLHA spectrum … Quick tour of available tools F. Ronga (CERN) – Coseners forum – June 22, 200713

  14. New common tool development

  15. The “Master Code” for indirect constraints • Collaboration of interested theorists and experimentalists: BUCHMULLER, Oliver (CERN) - Exp. CAVANAUGH, Richard (University of Florida) - Exp. HEINEMEYER, Sven (Santander) - Theo. ISIDORI, Gino (INFN Frascati) - Theo. PARADISI, Paride (University of Valencia) - Theo. RONGA, Frederic (CERN) - Exp. WEBER, Arne (Max Planck Inst. f. Phys. (Munich)) - Theo. WEIGLEIN, Georg (Durham) - Theo. • Work started at the LHC flavour workshop • Main focus of the work: • Development of a common tool for indirect constraints • Compilation (and integration) of state-of-the-art predictions • Application of the tool (proof of principle) • Goal: a framework for the consistent use of indirect constraints New common tool development F. Ronga (CERN) – Coseners forum – June 22, 200715

  16. Flow-chart: general overview Features (wish list) • Modularity • Platform independence • Configurability • Consistent error handling • Common interface New common tool development F. Ronga (CERN) – Coseners forum – June 22, 200716

  17. Use case I: input to external SUSY fitters • Provide consistent predictions (low-energy, EW, etc.) to LHC/ILC-oriented fitters. New common tool development F. Ronga (CERN) – Coseners forum – June 22, 200717

  18. Use case II: fit today’s data (2 minimisation) • Constrain SUSY parameter space • Will become even more stringent when combined with discoveries! New common tool development F. Ronga (CERN) – Coseners forum – June 22, 200718

  19. Example: mSUGRA fit Const. = Experimental Constraint value Pred.(MSSM) = Predicted value for a given MSSM parameter set mSUGRA parameters in the fit: m0 – common scalar mass m1/2 – common gaugino mass A0 – tri-linear mass paraemter tan– ratio of Higgs vacuum expectation values sign(µ) = +1 (fixed) New common tool development F. Ronga (CERN) – Coseners forum – June 22, 200719

  20. Indirect constraints used here Low energy observables BR(bs) MicrOMEGAs Isidori & Paradisi * ms Isidori & Paradisi* BR(Bs) MicrOMEGAs Isidori & Paradisi* BR(B) Isidori & Paradisi* BR(D) Isidori & Paradisi* BR(K) Isidori & Paradisi* g2 FeynHiggs *Soft scale only High energy EW observables RlA. Weber et al. Rb A. Weber et al. Rc A. Weber et al. Afb(b) A. Weber et al. Afb(c) A. Weber et al. Ab A. Weber et al. Ac A. Weber et al. Al(SLD) A. Weber et al. sin2eff A. Weber et al. mW A. Weber et al. Z A. Weber et al. Higgs sector observables mhlight FeynHiggs Cosmology observable h2 MicrOMEGAs DarkSUSY New common tool development F. Ronga (CERN) – Coseners forum – June 22, 200720

  21. Main contributors Fit result: SM vs. mSUGRA… SM Fit (LEP EW group) mSUGRA Fit (“Master Code”) VERY PRELIMINARY Prob(2)= 65% http://lepewwg.web.cern.ch/LEPEWWG/plots/summer2006/ New common tool development F. Ronga (CERN) – Coseners forum – June 22, 200721

  22. Lightest Higgs: SM vs. mSUGRA… theo&mtop SM: MH=7633 GeV mSUGRA MH=11385 GeV 24 exp VERY PRELIMINARY • All mSUGRA parameters minimised at each point • LEP Higgs mass limited not included in the fit (!) http://lepewwg.web.cern.ch/LEPEWWG/plots/summer2006/ New common tool development F. Ronga (CERN) – Coseners forum – June 22, 200722

  23.  95% contour* First look at contours • Two minima: • M0tan corridor • best 2 at low tan • second minimum: tan50 • To be further scrutinised! • B Physics observables will help to chose minimum • in particular B VERY PRELIMINARY 68% contour* All very preliminary and primarily for illustrative purpose! * Separate contours of same percentage needs to be added to get the full x%. New common tool development F. Ronga (CERN) – Coseners forum – June 22, 200723

  24. Summary • Indirect constraints (in particular flavour Physics!) areessential to restrict NP parameter space • Already today they are very constraining • Even more compelling when combined with LHC discoveries • Interplay between Atlas/CMS and LHCb/Super-B! • Consistent use of indirect constraints • State-of-the-art calculations for high precision • Requires common interface and input parameter sets (cf. SLHA) • Strong interest from flavour Physics community • First version of common tool • Including B Physics, electro-weak and cosmology observables • Ensures good communication between codes (SLHA…) • Still under development (available soon) • Could provide a forum for other codes to join in! • “Master Code” applications • Demonstrates powerful interplay Conclusions F. Ronga (CERN) – Coseners forum – June 22, 200724

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