V. Falaleev
A5021286460- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Medical Imaging Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Particle Accelerators and Free-Electron Lasers
- Atomic and Subatomic Physics Research
Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
2023-2025
European Organization for Nuclear Research
2007-2025
Charles University
2023-2024
Joint Institute for Nuclear Research
2007-2023
UCLouvain
2022-2023
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
2022
The NA62 experiment reports the branching ratio measurement $BR(K^+\to\pi^+\nu\bar\nu)$ at 68% CL, based on observation of 20 signal candidates with an expected background 7.0 events from total data sample collected CERN SPS during 2016-2018. This provides evidence for very rare $K^+\to\pi^+\nu\bar\nu$ decay, observed a significance $3.4\sigma$. achieves single event sensitivity $(0.839\pm0.054)\times10^{-11}$, corresponding to 10.0 assuming Standard Model $(8.4\pm1.0)\times10^{-11}$. result...
Searches for heavy neutral leptons $N$ in the $K^+\to e^+N$ and \mu^+N$ decay channels using dataset collected by NA62 experiment at CERN between 2016-2018 are presented. Upper limits on corresponding mixing matrix elements reported level of $\mathcal{O}(10^{-9})$ $\mathcal{O}(10^{-8})$, respectively. This represents an improvement least order magnitude previous measurement, as well extension to higher masses than previously covered. Related searches set upper rate...