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The HIBEAM Instrument at the European Spallation Source

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arxiv 2311.08326 v3 pith:3JNTH7OO submitted 2023-11-14 physics.ins-det

classification physics.ins-det
keywords hibeamneutronneutronssourceantineutronsdedicatedelectriceuropean
verification ladder T0 review T1 audit T2 compute T3 formal
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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.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Advancements in Computing and Simulation Techniques for the HIBEAM-NNBAR Experiment

    physics.ins-det 2025-07 reject novelty 3.0 of 10

    A technical status report on ML-based event selection, fast detector simulations, TPC simulations, and readout modeling for the HIBEAM-NNBAR experiment, with several methodological caveats.

  2. Fundamental Nuclear and Particle Physics At Neutron Sources

    nucl-ex 2025-06 unverdicted novelty 2.0 of 10

    A community whitepaper makes the case that ESS and neutron sources offer a competitive, complementary route to search for new physics, with proposed experiments in neutron decay, EDM, baryon number violation, neutrino...

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