activity
20132026
most citedNeutrino and axion bounds from the globular cluster M5 (NGC 5904)

247 citations · 1.7k across the 23 of their papers we have counts for

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Showing 2026Show all

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astro-ph.HE2026

Neutrino flavor instabilities intermediate between slow and fast

Nicolas Viaux, Lucas Johns

The neutrino flavor composition in supernovae and neutron star mergers is shaped by flavor instabilities, which are commonly classified into three types: slow (SFI), fast (FFI), an…

hep-ph2026

An effective topology-transfer nuisance for Genie-based neutrino-argon semi-inclusive analyses: a methodological proposal with MicroBooNE-constrained diagnostic

Nicolas Viaux

Liquid-argon TPC oscillation analyses increasingly split samples into proton-tagged (Np) and proton-less (0p) topologies at the ~35 MeV tracking threshold, but the standard GENIE R…

quant-ph2026

Quantum Magic Reveals CP Phases Invisible to Entanglement in Spin-0 Decays

Nicolas Viaux, Ariel Norambuena, Pedro Orellana

All standard scalar quantum-information measures -- concurrence, negativity, entanglement entropy, the optimized CHSH bound, and quantum Fisher information -- are CP-blind in ideal…

astro-ph.HE2026

Non-Monotonic Rotation Imprint on Time-Integrated Neutrino Spectral Moments in a 15\, Core-Collapse Supernova Sequence

Nicolas Viaux

We study the early post-bounce neutrino signal of the published Garching rotating core-collapse supernova (CCSN) sequence consisting of non-rotating (NR), slowly rota…

astro-ph.HE2026

An Analytic Threshold for LESA-Driven Negative ELN Flux Directions in Core-Collapse Supernovae: Derivation and Population Census

Nicolás Viaux, Lucas Johns

In core-collapse supernovae (CCSNe), deleptonization normally favors over emission. However, lepton-number emission self-sustained asymmetry (LESA) can make the ene…

hep-ph2026

Operator Identification in Charged Lepton-Flavor Violation: Global EFT Analysis with RG Evolution, Polarization Observables, and Bayesian Model Discrimination at Future Colliders

Nicolás Viaux M

Charged lepton-flavor violation is a null-test frontier of the Standard Model and a direct probe of physics beyond it. We present a global effective field theory (EFT) analysis acr…

astro-ph.HE2026

Which Neutron Stars Reach the Stiffening Regime? Multimessenger Constraints on Core Sound Speed and Stellar-Mass Thresholds

Nicolás Viaux, Sebastián Mendizabal

We present a concise multimessenger inference of the neutron-star core sound-speed profile using GW170817 and three \textit{NICER} mass--radius posteriors (PSR J00300451, PSR J0…