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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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 - 10 Jan 2003

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