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.
Cite
@article{arxiv.2311.08326,
title = {The HIBEAM Instrument at the European Spallation Source},
author = {V. Santoro and D. Milstead and P. Fierlinger and W. M. Snow and J. Amaral and J. Barrow and M. Bartis and P. Bentley and L. Björk and G. Brooijmans and L. Broussard and A. Burgman and G. Croci and N. de la Cour and D. D. Di Julio and K. Dunne and L. Eklund and H. Eriksson and M. J. Ferreira and U. Friman-Gayer and P. Golubev and G. Gorini and G. P. Guedes and V. Hehl and A. Heinz and H. Henriksson and M. Holl and Y. Kamyshkov and E. Kemp and M. Kickulies and R. Kolevatov and A. Kozela and A. Kupsc and H. T. Johansson and B. Jönsson and W. T. Lee and W. Lejon and G. Luzin and P. Marciniewski and J. I. Marquez Damian and B. Meirose and G. Muhrer and A. Muraro and A. Nepomuceno and T. Nilsson and A. Oskarsson and T. Pałasz and R. Pasechnik and L. B. Persson and O. Putignano and K. Pysz and T. Quirino and B. Rataj and A. Ripa and J. Rogers and F. Scioscioli and S. Silverstein and Y. V. Stadnik and R. Wagner and M. Wolke and J. Womersley and S. C. Yiu and L. Zanini and L. Åstrand},
journal= {arXiv preprint arXiv:2311.08326},
year = {2025}
}
Comments
80 pages, 30 figures