Final taus and initial state polarization signatures from effective interactions of Majorana neutrinos at future $e^{+}e^{-}$ colliders
| Autor: | Duarte, Lucía, Zapata, Gabriel, Sampayo, Oscar A. |
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| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | European Physical Journal C 2019 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1140/epjc/s10052-019-6734-3 |
| Popis: | We study the possibility of future $e^{+}e^{-}$ colliders to disentangle different new physics contributions to the production of heavy sterile Majorana neutrinos in the lepton number violating channel $e^{+}e^{-}\rightarrow l^{+} l^{+}+ 4 jets$, with $l=e, \mu, \tau$. This is done investigating the final anti-tau polarization trails and initial beam polarization dependence of the signal on effective operators with distinct Dirac-Lorentz structure contributing to the Majorana neutrino production and decay, which parameterize new physics from a higher energy scale. We find both analyses could well disentangle possible vectorial and scalar operators contributions. Comment: 21 pages, 11 figures. arXiv admin note: text overlap with arXiv:1802.07620 |
| Databáze: | arXiv |
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