Introduces echo signatures from vector long-lived particles in nucleon decay, showing high geometric acceptance up to 80% in Super-K, Hyper-K and JUNO for a range of decay lengths.
Nucleon Decay into Dark Sector
3 Pith papers cite this work. Polarity classification is still indexing.
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abstract
A sub-GeV dark sector fermion X can have baryon number violating interactions induced by high scale physics, leading to nucleon decay into X + meson and neutron -> X + photon. Such processes can mimic standard search modes containing a neutrino, but have different kinematics and may have escaped detection. If a dark force mediated by a light vector Z_d acts on X, depending on parameters, neutron -> X + Z_d can be important. In typical scenarios, Z_d decays into l^+l^-, where l=e, mu, with order unity branching fraction. Nucleon decay searches can potentially uncover new dark states that are otherwise inaccessible, due to their negligible coupling to ordinary matter or cosmological abundance.
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hep-ph 3years
2026 3roles
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background 1representative citing papers
A UV-complete neutron portal model dynamically solves the dark matter-baryon coincidence via a supercooled dark confinement transition that generates GeV-scale asymmetric DM and links to observed gravitational waves.
In SMEFT, the (B-L)-violating decay n → K⁺ℓ⁻ appears at dimension seven while the conserving n → K⁻ℓ⁺ requires dimension ten and is accompanied by lower-dimensional (B+L)-violating modes, so n → Kℓ without modes like p → π⁰ℓ⁺ suggests (B-L) violation.
citing papers explorer
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Echoes of Nucleon Decay from Long-Lived Particles
Introduces echo signatures from vector long-lived particles in nucleon decay, showing high geometric acceptance up to 80% in Super-K, Hyper-K and JUNO for a range of decay lengths.
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Neutron Portal and Dark Matter-Baryon Coincidence: from UV Completion to Phenomenology
A UV-complete neutron portal model dynamically solves the dark matter-baryon coincidence via a supercooled dark confinement transition that generates GeV-scale asymmetric DM and links to observed gravitational waves.
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$n \to K\ell$ and the baryon asymmetry of the universe
In SMEFT, the (B-L)-violating decay n → K⁺ℓ⁻ appears at dimension seven while the conserving n → K⁻ℓ⁺ requires dimension ten and is accompanied by lower-dimensional (B+L)-violating modes, so n → Kℓ without modes like p → π⁰ℓ⁺ suggests (B-L) violation.