activity
20242026
most citedQuantum pions

3 citations · 5 across the 7 of their papers we have counts for

collaborators

8 papers

hep-ph2026

Sensitivity targets for dark photon searches in charged kaon decays

M. Fabbrichesi, E. Gabrielli, K. Müürsepp

We investigate the prospects for detecting invisible dark photons in charged kaon decays through the two-pion channel and the one-pion radiative decay $K^+\toπ^…

hep-ph2025

Measuring CP violation using quantum state tomography

M. Fabbrichesi, R. Floreanini, E. Gabrielli +1

We investigate direct CP violation in neutral meson decays by reconstructing the associated density matrices and measuring their difference using the trace distance. Our results co…

hep-ph2025★ 3 cited

Quantum pions

M. Fabbrichesi, R. Floreanini, E. Gabrielli +1

We show that two- and three-pion states produced in the decay of neutral kaons are contextual, entangled, and Bell nonlocal in isospin space. By reinterpreting the experimental val…

hep-ph2025

Tests of quantum contextuality in particle physics

M. Fabbrichesi, R. Floreanini, E. Gabrielli +1

Quantum contextuality refers to the impossibility of assigning a predefined, intrinsic value to a physical property of a system independently of the context in which the property i…

hep-ph2025

Quantum contextuality of spin-1 massive particles

M. Fabbrichesi, R. Floreanini, E. Gabrielli +1

Contextuality is a fundamental property of quantum mechanics. Contrary to entanglement, which can only exist in composite systems, contextuality is also present for single entities…

hep-ph2024

Bell inequality is violated in charmonium decays

M. Fabbrichesi, R. Floreanini, E. Gabrielli +1

The experimental data on the helicity amplitudes of charmonium decays allow us to measure entanglement in final state spin correlations and test possible violations of the Bell ine…

hep-ph2024★ 2 cited

Testing the CKM unitarity at high energy via the production at the LHC and future colliders

E. Gabrielli, L. Marzola, K. Müürsepp

We propose a novel test to assess the unitarity of the Cabibbo-Kobayashi-Maskawa matrix, , at present and future collider experiments. Our strategy makes use of the $W…

hep-ph2024

Explaining the excess via a massless dark photon

E. Gabrielli, L. Marzola, K. Müürsepp +1

The Belle II collaboration has recently observed the rare decay , finding an excess with respect to the Standard Model prediction. We explore the possibility tha…