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Searching for Doubly-Charged Higgs at the LHC Sá Borges, Cieza Montalvo Mauro Tonasse Nelson Cortez Universidade do Estado do Rio de Janeiro - Instituto.

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Presentation on theme: "Searching for Doubly-Charged Higgs at the LHC Sá Borges, Cieza Montalvo Mauro Tonasse Nelson Cortez Universidade do Estado do Rio de Janeiro - Instituto."— Presentation transcript:

1 Searching for Doubly-Charged Higgs at the LHC Sá Borges, Cieza Montalvo Mauro Tonasse Nelson Cortez Universidade do Estado do Rio de Janeiro - Instituto de Física Universidade Estadual Paulista – Campus de Registro Universidade Estadual Paulista – Instituto de Física Teórica

2 Outline Introduction Left-Right Model Experimental Bounds Model Pair Production at the LHC Partial Widths Results and Conclusion

3 Left-Right Symmetric Model Broken to SM byInvariance requires Scalars

4 Couplings Experimental constraints Interactions (lepton number violation ) Bhabha Scattering Muonium-antiMuonium  +  e+ e+ e- (g-2)  small off-diagonal couplings left-handed

5 One Doubly Higgs Production Physical single charged scalars (proton –proton)

6 Conclusion W W fusion (H ++) Exceed Drell-Yan (H ++ H --) Cross Section Proton-Proton

7 Pair Production Cross section General

8 Tevatron LHC

9 Experimental Bounds

10 SU(3) c x SU(3) L x U(1) N SM chiral extension Solve family’s replication problem Colors anomaly cancelation Seesaw mechanism Charge Operator

11 Overview Left-Handed Leptons Quark Sector Scalar Sector Higgs Potential Gauge Bosons

12 Symmetry Breaking Neutral Sector Charged Sector

13 The Production of a Pair of Doubly Charged Higgs at LHC in the Model

14 Drell-Yan Mechanism Gauge Bosons Scalars

15 Gluon-Gluon Fusion only scalars

16 Quark loop contribution for the scalar and the quarks quark and scalar couplings

17 Exotic Particles Masses E M T Parameters

18 Numerical values for Total Cross Section Convolute parton momentum spectra using CTEQ5 Numerical Integration by VEGAS Quarks, gluons

19 Comparison

20 Left-Right Model

21 Comparison

22 Branching Ratios

23 Conclusion Large number of doubly charged scalars produced by Drell-Yan mechanism Small branching ratio for ordinary quarks and leptons production Thank you Pair of Doubly Charged Higgs Production at LHC 3-3-1


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