Researcher profile

F. Sargeni

· University of Rome Tor Vergata

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Search for hadronic decays of feebly-interacting particles at NA62
2025 · The European Physical Journal C · DOI 10.1140/epjc/s10052-025-14133-w

Abstract The NA62 experiment at CERN has the capability to collect data in a beam-dump mode, where 400 GeV protons are dumped on an absorber. In this configuration, New Physics particles, including dark photons, dark scalars, and axion-like particles, may be produced in the absorber and decay in the instrumented volume beginning approximately 80 m downstream of the dump. A search for these particles decaying in flight to hadronic final states is reported, based on an analysis of a sample of $$1.4 \times 10^{17}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>1.4</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mn>10</mml:mn> <mml:mn>17</mml:mn> </mml:msup> </mml:mrow> </mml:math> protons on dump collected in 2021. No evidence of a New Physics signal is observed, excluding new regions of parameter spaces of multiple models.

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Co-authors

E. Cortina

European Organization for Nuclear Research

1 shared publication
J. Jerhot

Max Planck Institute for Physics

1 shared publication
N. Lurkin

European Organization for Nuclear Research

1 shared publication
T. Numao

TRIUMF

1 shared publication
B. Velghe

TRIUMF

1 shared publication
V. W. S. Wong

TRIUMF

1 shared publication
D. Bryman

TRIUMF

1 shared publication
Z. Hives

Charles University

1 shared publication
T. Husek

Charles University

1 shared publication
Karol Kampf

Charles University

1 shared publication
Marián Kolesár

Charles University

1 shared publication
M. Koval

Charles University

1 shared publication