European Physical Journal C: Particles and Fields (Mar 2023)
Shedding light on X17: community report
- Daniele S. M. Alves,
- Daniele Barducci,
- Gianluca Cavoto,
- Luc Darmé,
- Luigi Delle Rose,
- Luca Doria,
- Jonathan L. Feng,
- André Frankenthal,
- Ashot Gasparian,
- Evgueni Goudzovski,
- Carlo Gustavino,
- Shaaban Khalil,
- Venelin Kozhuharov,
- Attila J. Krasznahorkay,
- Tommaso Marchi,
- Manuel Meucci,
- Gerald A. Miller,
- Stefano Moretti,
- Marco Nardecchia,
- Enrico Nardi,
- Hugo Natal da Luz,
- Giovanni Organtini,
- Angela Papa,
- Ann-Kathrin Perrevoort,
- Vlasios Petousis,
- Gabriele Piperno,
- Mauro Raggi,
- Francesco Renga,
- Patrick Schwendimann,
- Rudolf Sýkora,
- Claudio Toni,
- Paolo Valente,
- Cecilia Voena,
- Cheuk-Yin Wong,
- Xilin Zhang
Affiliations
- Daniele S. M. Alves
- Theoretical Division, Los Alamos National Laboratory
- Daniele Barducci
- Dip. di Fisica Sapienza Univ.
- Gianluca Cavoto
- Dip. di Fisica Sapienza Univ.
- Luc Darmé
- Institut de Physique des 2 Infinis de Lyon (IP2I), UMR5822, CNRS/IN2P3
- Luigi Delle Rose
- Institut de Fisica d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology
- Luca Doria
- Johannes Gutenberg-Universität Mainz
- Jonathan L. Feng
- Department of Physics and Astronomy, University of California
- André Frankenthal
- Department of Physics, Princeton University
- Ashot Gasparian
- North Carolina A &T State University
- Evgueni Goudzovski
- School of Physics and Astronomy, University of Birmingham
- Carlo Gustavino
- INFN sez. Roma
- Shaaban Khalil
- Center for Fundamental Physics, Zewail City of Science and Technology
- Venelin Kozhuharov
- Faculty of Physics, Sofia University
- Attila J. Krasznahorkay
- Institute for Nuclear Research (Atomki)
- Tommaso Marchi
- INFN-Laboratori Nazionali di Legnaro
- Manuel Meucci
- Dip. di Fisica Sapienza Univ.
- Gerald A. Miller
- Department of Physics, University of Washington
- Stefano Moretti
- School of Physics and Astronomy, University of Southampton
- Marco Nardecchia
- Dip. di Fisica Sapienza Univ.
- Enrico Nardi
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
- Hugo Natal da Luz
- Institute of Experimental and Applied Physics, Czech Technical University in Prague
- Giovanni Organtini
- Dip. di Fisica Sapienza Univ.
- Angela Papa
- Paul Scherrer Institute
- Ann-Kathrin Perrevoort
- Institute of Experimental Particle Physics, Karlsruhe Institute of Technology
- Vlasios Petousis
- Institute of Experimental and Applied Physics, Czech Technical University in Prague
- Gabriele Piperno
- Dip. di Fisica Sapienza Univ.
- Mauro Raggi
- Dip. di Fisica Sapienza Univ.
- Francesco Renga
- INFN sez. Roma
- Patrick Schwendimann
- Paul Scherrer Institute
- Rudolf Sýkora
- Institute of Experimental and Applied Physics, Czech Technical University in Prague
- Claudio Toni
- Dip. di Fisica Sapienza Univ.
- Paolo Valente
- INFN sez. Roma
- Cecilia Voena
- INFN sez. Roma
- Cheuk-Yin Wong
- Physics Division, Oak Ridge National Laboratory
- Xilin Zhang
- Facility for Rare Isotope Beams, Michigan State University
- DOI
- https://doi.org/10.1140/epjc/s10052-023-11271-x
- Journal volume & issue
-
Vol. 83,
no. 3
pp. 1 – 66
Abstract
Abstract The workshop “Shedding light on X17” brings together scientists looking for the existence of a possible new light particle, often referred to as X17. This hypothetical particle can explain the resonant structure observed at $$\sim $$ ∼ 17 MeV in the invariant mass of electron-positron pairs, produced after excitation of nuclei such as $$^8\hbox {Be}$$ 8 Be and $$^4\hbox {He}$$ 4 He by means of proton beams at the Atomki Laboratory in Debrecen. The purpose of the workshop is to discuss implications of this anomaly, in particular theoretical interpretations as well as present and future experiments aiming at confirming the result and/or at providing experimental evidence for its interpretation.
