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New leptoquark mechanism of neutrinoless double beta decay
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Hirsch, Martin; Klapdor-Kleingrothaus, H.V.; Kovalenko, S.G.
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This document is a artículoDate1996
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A new mechanism for neutrinoless double beta (0 nu beta beta) 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 0 nu beta beta decay. As a result the corresponding leptoquark parameters are severely constrained from nonobservation of 0 nu beta beta decay. These constraints are more stringent than those derived from other experiments. |
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