The HIBEAM instrument at the European spallation source
Abstract The European spallation source (ESS) will be the world’s brightest neutron source and will open a new intensity frontier in particle physics. The HIBEAM collaboration aims to exploit the unique potential of the ESS with a dedicated ESS instrument for particle physics which offers world-leading capability in a number of areas. The HIBEAM program includes the first search in thirty years for free neutrons converting to antineutrons and searches for sterile neutrons, ultralight axion dark matter and nonzero neutron electric charge. This paper outlines the capabilities, design, infrastructure, and scientific potential of the HIBEAM program, including its dedicated beamline, neutron optical system, magnetic shielding and control, and detectors for neutrons and antineutrons. Additionally, we discuss the long-term scientific exploitation of HIBEAM, which may include measurements of the neutron electric dipole moment and precision studies of neutron decays.
Authors
- P. Fierlinger (ORCID: https://orcid.org/0000-0002-5171-392X)
- J. Barrow (ORCID: https://orcid.org/0000-0002-7319-3339)
- W. M. Snow (ORCID: https://orcid.org/0000-0002-8931-5513)
- Phillip M. Bentley (ORCID: https://orcid.org/0000-0003-1235-1011)
- G. Brooijmans
- Jorge Amaral (ORCID: https://orcid.org/0000-0001-6580-5668)
- Madalin-Alexandru Bartis
- V. Santoro (ORCID: https://orcid.org/0000-0001-5379-8771)
- David Milstead
- Linnéa Björk
Institutions
- Uppsala University (SE)
- Jagiellonian University (PL)
- Oak Ridge National Laboratory (US)
- Centre National de la Recherche Scientifique (FR)
- The University of Sydney (AU)
- Universidade Federal Fluminense (BR)
- Stockholm University (SE)
- Tel Aviv University (IL)
- Universidade Estadual de Campinas (UNICAMP) (BR)
- Lund University (SE)
- Universidade Estadual de Feira de Santana (BR)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Université Paris-Saclay (FR)
- European Spallation Source (SE)
- Universidade do Estado do Rio de Janeiro (BR)
- Institute of Physics (PL)
- Institute of Nuclear Physics, Polish Academy of Sciences (PL)
- Laboratoire Léon Brillouin (FR)
- Indiana University Bloomington (US)
- CEA Paris-Saclay (FR)
- Institute for the Science and Technology of Plasmas (IT)
- Technical University of Munich (DE)
- Massachusetts Institute of Technology (US)
- University of Milano-Bicocca (IT)
- Chalmers University of Technology (SE)
- University of Tennessee at Knoxville (US)
- Columbia University (US)
- University of Edinburgh (GB)
Publication Details
- Journal
- Journal of Physics G Nuclear and Particle Physics
- Published
- 2025-04-03
- DOI
- https://doi.org/10.1088/1361-6471/adc8c2
- Citations
- 2
- Primary Topic
- Nuclear reactor physics and engineering
- Type
- article
- Field-Weighted Citation Impact
- 9.99
Funders
- U.S. Department of Energy
- Stiftelsen för Strategisk Forskning
- Vetenskapsrådet
- Australian Research Council