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20182026
most citedThe Present and Future Status of Heavy Neutral Leptons

181 citations · 584 across the 55 of their papers we have counts for

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hep-ph2026

SHiP as a (post-)discovery machine: identifying the diphoton signals' origin

Matei Climescu, Malte Fogde Mikkelsen, Maksym Ovchynnikov

The upcoming SHiP experiment may probe interaction strengths of decaying feebly coupled particles several orders of magnitude below existing limits. In the event of a discovery, it…

hep-ph2026

Rethinking search signatures: Hadronic decays of GeV-scale feebly coupled particles

Viktor Kryshtal, Maksym Ovchynnikov

Experimental searches for GeV-scale feebly interacting particles commonly target the simplest decay signatures with two charged particles, including hadrons. Hadronic modes often d…

hep-ph2026

Heavy neutral leptons beyond the BBN bound: probing the lepton asymmetry of the Universe

Kensuke Akita, Maksym Ovchynnikov, Vsevolod Syvolap

Hadronically decaying particles with lifetimes are excluded by Big Bang Nucleosynthesis almost independently of their abundance: the mesons from their decay…

hep-ph2026

Detector performance at SHiP for cascade-produced long-lived particles

Matei Climescu, Yehor Kyselov, Maksym Ovchynnikov

Previous studies have shown that cascade production in the thick target of the SHiP experiment may substantially enhance the number of light long-lived particles (LLPs) decaying in…

hep-ph2026

What does it take to have at CMB times?

Miguel Escudero, Maksym Ovchynnikov, Neal Weiner

The vast majority of extensions of the Standard Model affecting the number of effective relativistic neutrino species () do so additively, namely, they enhance this qu…

hep-ph2026

On Exclusive Coherent Production of Bosons in Electron-Proton Collisions

Reuven Balkin, Ta'el Coren, Alexander Jentsch +4

We study the exclusive electroproduction process , with a single-particle final state, in the forward-proton kinematics relevant for the future Electron-Ion Col…