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Sensitivity of the SHiP experiment to Heavy Neutral Leptons

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Ahdida C., Albanese R., Alexandrov A., Anokhina A., Aoki S., Arduini G., Atkin E., Azorskiy N., Baaltasar Dos Santos F., Back J. J., Bagulya A., Baranov A., Bardou F., Barker G. J., Battistin M., Bauche J., Bay A., Bayliss V., Bencivenni G., Berdnikov Y. A., Berdnikov A. Y., Berezkina I., Bertani M., Betancourt C., et al. ,
Project Searches for Heavy Neutral Leptons at ShiP and LHCb
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Original article (peer-reviewed)

Journal Journal of High Energy Physics
Volume (Issue) 2019(4)
Page(s) 77 - 77
Title of proceedings Journal of High Energy Physics
DOI 10.1007/jhep04(2019)077

Abstract

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(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.
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