782 citations · 1.7k across the 64 of their papers we have counts for
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Feebly Interacting Particles: FIPs at LHCb
J. Alimena, J. Boyd, G. Cacciapaglia +36
With the establishment and maturation of the experimental programs searching for new physics with sizeable couplings at the LHC, there is an increasing interest in the broader part…
Physics Briefing Book: Input for the 2026 update of the European Strategy for Particle Physics
Jorge de Blas, Monica Dunford, Emanuele Bagnaschi +127
The European Strategy for Particle Physics (ESPP) reflects the vision and presents concrete plans of the European particle physics community for advancing human knowledge in fundam…
Nucleosynthesis and CMB bounds on photophilic ALPs: a fresh look
Miguel Escudero, Clara Garcia-Perez, Maksym Ovchynnikov
We provide a fresh look at the cosmological constraints on axion-like particles (ALPs) that couple predominantly to photons, focusing on lifetimes …
Sub-GeV dark matter and multi-decay signatures from dark showers at beam-dump experiments
Elias Bernreuther, Nicoline Hemme, Felix Kahlhoefer +2
In models of strongly-interacting dark sectors, the production of dark quarks at accelerators can give rise to dark showers with multiple dark mesons in the final state. If some of…
Affleck-Dine Leptoflavorgenesis
Kensuke Akita, Koichi Hamaguchi, Maksym Ovchynnikov
We propose a scenario to produce large primordial lepton flavor asymmetries with vanishing total lepton asymmetry, based on the Affleck-Dine mechanism with Q-ball formation. This s…
The SND@LHC neutron shielding
LHC Collaboration
The design and construction of a neutron shielding for the SND@LHC detector, which utilizes a combination of plexiglass and borated polyethylene, is presented. FLUKA simulations we…
Precision calculation of with Neutrino Direct Simulation Monte Carlo
Oleksii Ihnatenko, Maksym Ovchynnikov
Neutrino Direct Simulation Monte Carlo (DSMC) is a Monte Carlo method for solving the neutrino Boltzmann equation in the early Universe, designed to track the evolution of cosmi…
Maximal parameter space of sterile neutrino dark matter with lepton asymmetries
Kensuke Akita, Koichi Hamaguchi, Maksym Ovchynnikov
We delineate the maximal parameter space of sterile neutrino dark matter in the presence of lepton flavor asymmetries. We focus on large flavor asymmetries with vanishing total lep…
Summary Report of the Physics Beyond Colliders Study at CERN
R. Alemany Fernández, M. Au, G. Arduini +80
The Physics Beyond Collider (PBC) Study Group was initially mandated by the CERN Management to prepare the previous European Particle Physics Strategy Update for CERN projects othe…
New physics particles mixing with mesons: production in the fragmentation chain
Yehor Kyselov, Stephen Mrenna, Maksym Ovchynnikov
A class of extensions to the Standard Model adds hypothetical long-lived particles (LLPs) that have mass- or kinetic-mixing with neutral mesons, such as pions or rho mesons. The mi…
Studies of Hadronic Showers in SND@LHC
LHC Collaboration
The SND@LHC experiment was built for observing neutrinos arising from LHC pp collisions. The detector consists of two sections: a target instrumented with SciFi modules and a hadro…
Input from the SND@LHC collaboration to the 2026 Update to the European Strategy for Particle Physics
LHC collaboration
By observing collider neutrino interactions of different flavours, the SND@LHC and Faser experiments have shown that the LHC can make interesting contributions to neutrino physics.…
Neutrino Theory in the Precision Era
Asmaa Abada, Gabriela Barenboim, Toni Bertólez-Martínez +76
This document summarises discussions on future directions in theoretical neutrino physics, which are the outcome of a neutrino theory workshop held at CERN in February 2025. The st…
PREFACE: A search for long-lived particles at the Large Hadron Collider
B. Hacisahinoglu, S. Ozkorucuklu, M. Ovchynnikov +3
The Standard Model (SM) fails to explain many problems (neutrino masses, dark matter, and matter-antimatter asymmetry, among others) that may be resolved with new particles beyond…
Di-decay signature of new physics particles at intensity frontier experiments
Giovani Dalla Valle Garcia, Maksym Ovchynnikov
We present a discovery-era strategy for Intensity Frontier experiments based on ``di-decay'' events, in which feebly interacting particles (FIPs) are produced in pairs and then bot…
Advancing the phenomenology of GeV-scale axion-like particles
Maksym Ovchynnikov, Andrii Zaporozhchenko
Searches for axion-like particles (ALPs) with masses in the GeV range are a central objective of present and future Intensity Frontier experiments. Interpreting these searches dema…