Novel search for heavy ν mixing from the β+ decay of 38mK confined in an atom trap

M. Trinczek, A. Gorelov, D. Melconian, W. P. Alford, D. Asgeirsson, D. Ashery, J. A. Behr, P. G. Bricault, J. M. D'Auria, J. Deutsch, J. Dilling, M. Dombsky, P. Dubé, S. Eaton, J. Fingler, U. Giesen, S. Gu, O. Häusser, K. P. Jackson, B. LeeJ. H. Schmid, T. J. Stocki, T. B. Swanson, W. Wong

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

A magneto-optical trap and the new technique of full neutrino momentum reconstruction were used to account for massive neutrino admixtures in nuclear β decay. It was possible to set the best direct limits on heavy vx admixtures into ve from mvx=0.7-3.6 MeV and the best model-independent direct limits from 2.9-3.6 MeV.

Original languageEnglish
Pages (from-to)012501/1-012501/4
JournalPhysical Review Letters
Volume90
Issue number1
StatePublished - Jan 10 2003
Externally publishedYes

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