A complete basis of dimension-9 operators for three-lepton nucleon decays is constructed, matched to chiral perturbation theory, and constrained by experimental limits.
Chiral perturbation theory for baryon-number-violating nucleon decay into a vector meson
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Bounds on nucleon decays to three leptons are obtained from dim-6 LEFT Wilson coefficients constrained by two-body BNV limits, yielding results several orders of magnitude different from prior phase-space estimates for Δ(B-L)=0 modes.
Global EFT analysis without single-operator dominance improves lifetime bounds on charged-lepton three-body nucleon decays by over three orders of magnitude and sets first limits around 10^34 years for neutrino modes.
Using LEFT operators and chiral PT, the authors derive improved partial lifetime bounds for 31 three-body BNV nucleon decay modes by constraining Wilson coefficients from two-body experimental data.
citing papers explorer
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Nucleon decays into three leptons: contact contributions
A complete basis of dimension-9 operators for three-lepton nucleon decays is constructed, matched to chiral perturbation theory, and constrained by experimental limits.
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Nucleon decays into three leptons: Noncontact contributions
Bounds on nucleon decays to three leptons are obtained from dim-6 LEFT Wilson coefficients constrained by two-body BNV limits, yielding results several orders of magnitude different from prior phase-space estimates for Δ(B-L)=0 modes.
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Nucleon decays into one lepton plus two non-strange mesons
Global EFT analysis without single-operator dominance improves lifetime bounds on charged-lepton three-body nucleon decays by over three orders of magnitude and sets first limits around 10^34 years for neutrino modes.
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Comprehensive investigation of nucleon decays into one lepton plus two mesons
Using LEFT operators and chiral PT, the authors derive improved partial lifetime bounds for 31 three-body BNV nucleon decay modes by constraining Wilson coefficients from two-body experimental data.