Shedding light on X17: community report

Accepted/In Press date: 23 January 2023

e-pub ahead of print date: 20 March 2023

Published date: 20 March 2023

Additional Information: Funding Information: LDR acknowledges the support from a fellowship from la Caixa Foundation (ID 100010434) and from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Action grant agreement No 847648. The fellowship code is LCF/BQ/ PI20/11760032. SK acknowledges the support from the Science, Technology and Innovation Funding Authority (STDF) under grant number 37272. SM is financed in part through the NExT Institute and the STFC Consolidated Grant No. ST/L000296/1. We would like to thank Attila Krasznahorkay for the update on their recent re-measurement of . This work was supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under the FRIB Theory Alliance award DE-SC0013617 and under award DE-FG02-97ER41014. This work is partly supported by the Italian Ministry of Foreign Affairs and International Cooperation (MAECI) under the grant PRG00226 (CUP I86D16000060005), the BG-NSF KP-06-DO02/4 from 15.12.2020 as part of MUCCA, CHIST-ERA-19-XAI-009, and TA-LNF as part of STRONG-2020 EU Grant Agreement 824093 projects. The author’s work is funded by the Federal Ministry of Education and Research (BMBF) and the Baden-Württemberg Ministry of Science as part of the Excellence Strategy of the German Federal and State Governments. The author further acknowledges the support by the German Research Foundation (DFG) funded Research Training Group “Particle Physics beyond the Standard Model” (GK 1994) on previous works on this subject. This work was supported by an Early Career Research award from Los Alamos National Laboratory’s LDRD program, and by the DOE Office of Science High Energy Physics under Contract No. DE-AC52-06NA25396. (LANL Unlimited Release Report No.: LA-UR-22-22927). I wish to thank A. Krasznahorkay (CERN), M. Csatlós, L. Csige, J. Gulyás and N.J. Sas for building and upgrading the data acquisition system of the experiment, for performing simulations for the spectrometer and for taking part in the experiments. The work of Z. Pintye and J. Molnár for the mechanical and for the electronic design of the experiments is also highly appreciated. This work has been supported by the Hungarian NKFI Foundation No. K124810 and by the GINOP-2.3.3-15-2016-00034 and GINOP-2.3.3-15-2016-00005 grants. The conference organising committee warmly thanks Prof. L. Pietronero and all the Centro Enrico Fermi staff for hosting the conference. This work is partly supported by the Sapienza University under the grant “Ricerca del bosone X17 nell’esperimento PADME ai laboratori Nazionali di Frascati” 2020, and by the grant “Chasing X17” by INFN fondo conferenze 2020.

Local EPrints ID: 477684

URI: http://eprints.soton.ac.uk/id/eprint/477684

DOI: doi:10.1140/epjc/s10052-023-11271-x

ISSN: 1434-6044

PURE UUID: 4c4dcce3-b533-4ab2-9989-97bf13eb152d

ORCID for Stefano Moretti: orcid.org/0000-0002-8601-7246

Date deposited: 13 Jun 2023 16:50

Last modified: 18 Mar 2024 02:57