Sensitivity of the SHiP experiment to Heavy Neutral Leptons

By C. Ahdida, R. Albanese, A. Alexandrov, A. Anokhina, S. Aoki, G. Arduini, E. Atkin, N. Azorskiy, F. Baaltasar Dos Santos, J. Back and 325 more. Journal of High Energy Physics, 2018

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Heavy Neutral Leptons (HNLs) are hypothetical particles predicted by many extensions of the Standard Model. These particles can, among other things, explain the origin of neutrino masses, generate the observed matter-antimatter asymmetry in the Universe and provide a dark matter candidate. The SHiP experiment will be able to search for HNLs produced in decays of heavy mesons and travelling distances ranging between O\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \mathcal{O} $$\end{document}(50 m) and tens of kilometers before decaying. We present the sensitivity of the SHiP experiment to a number of HNL’s benchmark models and provide a way to calculate the SHiP’s sensitivity to HNLs for arbitrary patterns of flavour mixings. The corresponding tools and data files are also made publicly available.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/c445018d78b01dafc5c5a1134e66d2775a5327e2

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In Nuclear and High Energy Physics

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  2. Oleg Ruchayskiy
  3. D. Gorbunov
  4. K. Bondarenko
  5. M. Drewes
  6. M. Shaposhnikov
  7. Julien Lesgourgues
  8. Fedor Bezrukov

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