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Pontificia Universidad Católica de Chile

Charged higgs triplet model signals at the LHC. Pontificia Universidad Católica de Chile . 4 th International High Energy Physics in the LHC Era January 9, 2012 - UTFSM, Valparaiso, Chile. Sebastián Andrés Olivares Pino. Introduction. Why we introduce Higgs triplet fields ?.

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Pontificia Universidad Católica de Chile

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  1. Charged higgs triplet model signals at the LHC Pontificia Universidad Católica de Chile 4th International High Energy Physics in the LHC Era January 9, 2012 - UTFSM, Valparaiso, Chile Sebastián Andrés Olivares Pino

  2. Introduction Whyweintroduce Higgstripletfields? Standard Model All SM particles, except neutrinos oneHiggsdoublet Supersymmetricpartners MSSM addoneHiggsdoublet Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile HiggsTripletModel Neutrinos addoneHiggsdoublet and a triplet

  3. HiggsTripletModel Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile VacuumExpectationValues (VEVs)

  4. HiggsTripletModel TadpoleEquations Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  5. HiggsTripletModel Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  6. HiggsTripletModel Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile • and gauge fields • and SU(2) and U(1) groupcouplings • and groupgenerators

  7. ParametersRestrictions Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  8. ModelAproximations Massesaproximation () κmust be little →0…0.0005 Must be negativefor Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  9. LeptonicLagrangian : Yukawa coupling Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  10. LeptonicLagrangian : Yukawa coupling : Conjugatechargeoperator Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile neutrino mass!

  11. HiggsTripletModel Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  12. Phenomenology Single ChargedDecays LowEnergy: High Energy: Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile small:

  13. Phenomenology DoubleChargedDecays Low Energy: High Energy: Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile small: leptonicdecaysdominates.

  14. Cross Section MC VEGAS Integrationmethod Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile StructureFunctions Partonic Cross Section

  15. Number of Events Luminosity registeredby ATLAS November 2011= Single Charged DoubleCharged Cross Sectionreaches in channel C in channels More events at lowenergy. More events at lowenergy At lowenergythefavoritechannelis: The model predicts events! Veryfewevents at themoment At lowenergythefavoritechannelis: The model predictsevents! Veryfewevents at themoment. Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  16. Conclusions • TheHiggsTripletModel can explainthe neutrino masswiththeinclusion of new fields. • Theleptoniccouplings are proportionaltothematrix, givingtheadvantage of measurethemodelphenomenology in neutrino and colliderexperiments. • Themost probable decayfortheDoublechargedHiggs at lowenergiesisto a pair of leptons, at highisto a Single Charged and a W boson. • Themost probable decayfortheSingle chargedHiggs at lowenergiesisto a Majoron and a W boson, at highisto a CP-OddHiggs and a W boson. • There are more events at lowenergyforthe Single and DoubleChargedHiggs, beingevents withtoday’s ATLAS luminosity. Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  17. Thanks Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  18. BACKUP Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  19. HiggsTripletModel 16 combinaciones que coinciden en 4 casos. Conservación CP fases complejas (Violación CP) Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile Jerarquia Normal (NH): ∆ con

  20. HiggsTripletModel Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  21. HiggsTripletModel Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  22. HiggsTripletModel Aproximaciones de las Masas () κ debe ser pequeño →0…0.0005 debe ser negativo para que Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile

  23. HiggsTripletModel Decaimientos Simplemente Cargados Bajas energías: Altas energías: Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile pequeño:

  24. HiggsTripletModel Decaimientos Doblemente Cargados Bajas energías: Altas energías: Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile pequeño: dominan decaimientos leptónicos

  25. HiggsTripletModel Luminosidad registrada por ATLAS Agosto 2011= A bajas energías el canal predilecto: Se encontraron eventos! Muy pocos eventos por el momento. A bajas energías el canal predilecto: Se encontraron eventos! Sin embargo, existen complicaciones al medir un canal con MET. Sección eficaz solo alcanza ~ Canal Sección eficaz alcanza Canales Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile Más eventos a bajas energías Más eventos a bajas energías

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