Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 1, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP01(2019)206
Keywords
Beyond Standard Model; Neutrino Detectors and Telescopes (experiments); Rare decay
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Funding
- National Science Foundation [PHY-1620638]
- Feodor Lynen Research Fellowship of the Alexander von Humboldt Foundation
- DFG [RO 2516/7-1]
- MEC
- UFRN
- ICTP-SAIFR FAPESP [2016/01343-7]
- Helmholtz Young Investigator Group VH-NG-1055
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We consider tritium beta decay with additional emission of light pseudoscalar or vector bosons coupling to electrons or neutrinos. The electron energy spectrum for all cases is evaluated and shown to be well estimated by approximated analytical expressions. We give the statistical sensitivity of Katrin to the mass and coupling of the new bosons, both in the standard setup of the experiment as well as for future modifications in which the full energy spectrum of tritium decay is accessible.
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