New leptoquark mechanism of neutrinoless double [Formula presented] decay

M. Hirsch, H. V. Klapdor-Kleingrothaus, S. G. Kovalenko

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

A new mechanism for neutrinoless double [Formula presented] decay based on leptoquark exchange is discussed. Because of the specific helicity structure of the effective four-fermion interaction this contribution is strongly enhanced compared to the well-known mass mechanism of [Formula presented] decay. As a result the corresponding leptoquark parameters are severely constrained from nonobservation of [Formula presented] decay. These constraints are more stringent than those derived from other experiments. © 1996 The American Physical Society.
Original languageEnglish
Pages (from-to)R4207-R4210
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
DOIs
Publication statusPublished - 1 Jan 1996
Externally publishedYes

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