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The HIBEAM instrument at the European spallation source

Santoro, V. LU ; Eriksson, H. ; Golubev, P. LU ; Hehl, V. ; Henriksson, H. ; Luzin, G. LU ; Meirose, B. LU ; Oskarsson, A. LU ; Pasechnik, R. LU and Persson, L.B. LU orcid , et al. (2025) In Journal of Physics G: Nuclear and Particle Physics 52(4).
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... (More)
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. © 2025 The Author(s). Published by IOP Publishing Ltd. (Less)
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author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
axion, baryon number violation, European spallation source, HIBEAM, neutron instrument, neutron oscillations, sterile neutron
in
Journal of Physics G: Nuclear and Particle Physics
volume
52
issue
4
article number
040501
publisher
IOP Publishing
external identifiers
  • scopus:105004174934
ISSN
0954-3899
DOI
10.1088/1361-6471/adc8c2
language
English
LU publication?
yes
id
20bf7fa8-3106-489f-a7eb-142a73b0efbf
date added to LUP
2026-03-11 09:57:00
date last changed
2026-03-11 09:58:21
@article{20bf7fa8-3106-489f-a7eb-142a73b0efbf,
  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. © 2025 The Author(s). Published by IOP Publishing Ltd.}},
  author       = {{Santoro, V. and Eriksson, H. and Golubev, P. and Hehl, V. and Henriksson, H. and Luzin, G. and Meirose, B. and Oskarsson, A. and Pasechnik, R. and Persson, L.B. and Rataj, B. and Ripa, A. and Åstrand, L.}},
  issn         = {{0954-3899}},
  keywords     = {{axion; baryon number violation; European spallation source; HIBEAM; neutron instrument; neutron oscillations; sterile neutron}},
  language     = {{eng}},
  number       = {{4}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Physics G: Nuclear and Particle Physics}},
  title        = {{The HIBEAM instrument at the European spallation source}},
  url          = {{http://dx.doi.org/10.1088/1361-6471/adc8c2}},
  doi          = {{10.1088/1361-6471/adc8c2}},
  volume       = {{52}},
  year         = {{2025}},
}