Potential discovery of staus through heavy Higgs boson decays at the LHC
| Autor: | Arganda, Ernesto, Martin-Lozano, Victor, Medina, Anibal D., Mileo, Nicolás |
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| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | JHEP 1809 (2018) 056 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1007/JHEP09(2018)056 |
| Popis: | In this work we present a new search strategy for the discovery of staus at the LHC in the context of the minimal supersymmetric standard model. The search profits from the large s-channel $b$-quark annihilation production of the heavy CP-even and CP-odd Higgs bosons (H/A) which can be attained in regions of $\tan\beta\gg 1$ that avoid the stringent $H/A \to \tau^+ \tau^-$ searches via decays into stau pairs. We also focus on regions where the staus branching ratios are dominated by the decays into a tau lepton and the lightest neutralino. Thus the experimental signature consists of final states made up of a tau-lepton pair plus large missing transverse energy. We take advantage of the large stau-pair production cross sections via heavy Higgs boson decays, which are between one or two orders of magnitude larger than the usual electroweak production cross sections for staus. A set of basic cuts allow us to obtain significances of the signal over the SM backgrounds at the discovery level (5 standard deviations) in the next LHC run with a center-of-mass energy of 14 TeV and a total integrated luminosity of only 100 fb$^{-1}$. Comment: 11 pages, 3 figures, 3 tables. This version v2 matches the manuscript published in JHEP |
| Databáze: | arXiv |
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