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arXiv · 1811.03530

Tritium beta decay with additional emission of new light bosons

Giorgio Arcadi·Julian Heeck·Florian Heizmann·Susanne Mertens·Farinaldo S. Queiroz·Werner Rodejohann·Martin Slezák·Kathrin Valerius
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Abstract

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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Giorgio Arcadi, Julian Heeck, Florian Heizmann, Susanne Mertens, Farinaldo S. Queiroz, Werner Rodejohann, Martin Slezák, Kathrin Valerius. 2018-11-08. Tritium beta decay with additional emission of new light bosons. https://doi.org/10.1007/jhep01(2019)206

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