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https://hdl.handle.net/2440/95662
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Type: | Journal article |
Title: | Same-sign tetra-leptons from type II seesaw |
Author: | Chun, E. Sharma, P. |
Citation: | The Journal of High Energy Physics, 2012; 2012(8):162-1-162-15 |
Publisher: | Springer |
Issue Date: | 2012 |
ISSN: | 1126-6708 1029-8479 |
Statement of Responsibility: | Eung Jin Chun, Pankaj Sharma |
Abstract: | The type II seesaw mechanism introduces a hypercharged Higgs triplet to explain the observed neutrino masses and mixing. Among three triplet components, the doubly charged Higgs boson can be the lightest and decay mainly to same-sign di-leptons. Furthermore, the heavier singly charged or neutral Higgs boson produces a doubly charged Higgs boson through its fast gauge decay. This leads to a novel signature of same-sign tetra-leptons resulting from a pair production of same-sign doubly charged Higgs bosons caused by the nearly degenerate neutral scalar mixing which can be sizable for an appropriate choice of the model parameters. After studying production cross-sections for the same-sign tetra-lepton signal in the parameter space of the mass splitting among triplet components and the triplet vacuum expectation value, we provide a LHC analysis of the same-sign tetra-lepton signal for a benchmark point chosen to maximize the event number. |
Keywords: | Higgs Physics Beyond Standard Model Neutrino Physics |
Rights: | © SISSA 2012 |
DOI: | 10.1007/JHEP08(2012)162 |
Published version: | http://dx.doi.org/10.1007/jhep08(2012)162 |
Appears in Collections: | Aurora harvest 7 Physics publications |
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