Dominance of pion-exchange in R-parity violating supersymmetry contributions to neutrinoless double beta decay

Amand Faessler; Sergey Kovalenko; Fedor Šimkovic; Joerg Schwieger

doi:10.1103/PhysRevLett.78.183

Dominance of pion-exchange in R-parity violating supersymmetry contributions to neutrinoless double beta decay

Amand Faessler, Sergey Kovalenko, Fedor Šimkovic, Joerg Schwieger

Research output: Contribution to journal › Article › peer-review

125 Citations (Scopus)

Abstract

We present a new contribution of the R-parity-violating (R_p) supersymmetry (SUSY) to neutrinoless double beta decay (0νββ) via the pion exchange between decaying neutrons. The pion coupling to the final state electrons is induced by the R_p SUSY interactions. We have found this pion-exchange mechanism to dominate over the conventional two-nucleon one. The latter corresponds to direct interaction between quarks from two decaying neutrons without any light hadronic mediator like πmeson. The constraints on the certain R_p SUSY parameters are extracted from the current experimental 0νββ-decay half-life limit. These constraints are significantly stronger than those previously known or expected from the ongoing accelerator experiments.

Original language	English
Pages (from-to)	183-186
Number of pages	4
Journal	Physical Review Letters
Volume	78
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.78.183
Publication status	Published - 13 Jan 1997
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.78.183

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title = "Dominance of pion-exchange in R-parity violating supersymmetry contributions to neutrinoless double beta decay",

abstract = "We present a new contribution of the R-parity-violating (Rp) supersymmetry (SUSY) to neutrinoless double beta decay (0νββ) via the pion exchange between decaying neutrons. The pion coupling to the final state electrons is induced by the Rp SUSY interactions. We have found this pion-exchange mechanism to dominate over the conventional two-nucleon one. The latter corresponds to direct interaction between quarks from two decaying neutrons without any light hadronic mediator like πmeson. The constraints on the certain Rp SUSY parameters are extracted from the current experimental 0νββ-decay half-life limit. These constraints are significantly stronger than those previously known or expected from the ongoing accelerator experiments.",

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AU - Faessler, Amand

AU - Kovalenko, Sergey

AU - Šimkovic, Fedor

AU - Schwieger, Joerg

PY - 1997/1/13

Y1 - 1997/1/13

N2 - We present a new contribution of the R-parity-violating (Rp) supersymmetry (SUSY) to neutrinoless double beta decay (0νββ) via the pion exchange between decaying neutrons. The pion coupling to the final state electrons is induced by the Rp SUSY interactions. We have found this pion-exchange mechanism to dominate over the conventional two-nucleon one. The latter corresponds to direct interaction between quarks from two decaying neutrons without any light hadronic mediator like πmeson. The constraints on the certain Rp SUSY parameters are extracted from the current experimental 0νββ-decay half-life limit. These constraints are significantly stronger than those previously known or expected from the ongoing accelerator experiments.

AB - We present a new contribution of the R-parity-violating (Rp) supersymmetry (SUSY) to neutrinoless double beta decay (0νββ) via the pion exchange between decaying neutrons. The pion coupling to the final state electrons is induced by the Rp SUSY interactions. We have found this pion-exchange mechanism to dominate over the conventional two-nucleon one. The latter corresponds to direct interaction between quarks from two decaying neutrons without any light hadronic mediator like πmeson. The constraints on the certain Rp SUSY parameters are extracted from the current experimental 0νββ-decay half-life limit. These constraints are significantly stronger than those previously known or expected from the ongoing accelerator experiments.

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Dominance of pion-exchange in R-parity violating supersymmetry contributions to neutrinoless double beta decay

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