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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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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
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
HiggsTripletModel Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile VacuumExpectationValues (VEVs)
HiggsTripletModel TadpoleEquations Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile
HiggsTripletModel Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile
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
ParametersRestrictions Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile
ModelAproximations Massesaproximation () κmust be little →0…0.0005 Must be negativefor Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile
LeptonicLagrangian : Yukawa coupling Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile
LeptonicLagrangian : Yukawa coupling : Conjugatechargeoperator Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile neutrino mass!
HiggsTripletModel Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile
Phenomenology Single ChargedDecays LowEnergy: High Energy: Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile small:
Phenomenology DoubleChargedDecays Low Energy: High Energy: Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile small: leptonicdecaysdominates.
Cross Section MC VEGAS Integrationmethod Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile StructureFunctions Partonic Cross Section
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
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
Thanks Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile
BACKUP Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile
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
HiggsTripletModel Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile
HiggsTripletModel Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile
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
HiggsTripletModel Decaimientos Simplemente Cargados Bajas energías: Altas energías: Charged Higgs Triplet Model Signals at the LHC - January 2012, UTFSM Valparaiso Chile pequeño:
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
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