Proceedings of the Erice workshop: A new baseline for the hybrid, asymmetric, linear Higgs factory HALHF

The HALHF collaboration has discussed a new baseline for the project, taking into account comments from the accelerator community on various aspects of the original design. In particular, these concerned the practicality of the dual-purpose linac to accelerate both colliding positron bunches and the drive beams required for the plasma linac. In addition, many other aspects of the project were also considered; the discussion and conclusions are documented in this paper. Finally, a new baseline is outlined that has been optimised and addresses several weaknesses in the original design, has higher luminosity, reduced centre-of-mass energy boost and additional features such as two interaction points and positron polarisation as well as electron polarisation. Although HALHF has become longer and more expensive, it remains significantly smaller and cheaper than other mature Higgs factory designs currently under discussion.

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Publication Details

Journal
Physics Open
Published
2025-03-19
DOI
https://doi.org/10.1016/j.physo.2025.100261
Citations
2
Primary Topic
Particle Accelerators and Free-Electron Lasers
Type
article
Field-Weighted Citation Impact
1.46
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article

Proceedings of the Erice workshop: A new baseline for the hybrid, asymmetric, linear Higgs factory HALHF

Kristjan Põder, Spencer Gessner, C. A. Lindstrøm, Jonathan Wood et al.
2 citations
Physics Open
Particle Accelerators and Free-Electron Lasers
1.46
article

Proceedings of the Erice workshop: A new baseline for the hybrid, asymmetric, linear Higgs factory HALHF

Kristjan Põder, Spencer Gessner, C. A. Lindstrøm, Jonathan Wood, Maxence Thévenet, Jian Bin Ben Chen, B. Foster, Nicholas Walker, A. Seryi, Jenny List, Mark Hogan, P. Drobniak, Kyrre Sjobak, Stewart Boogert, Richard D’Arcy, E. Adli, M. Berggren, Gudrid Moortgat Pick, A. Laudrain, Xueying Lu, S. M. Farrington, Benno List, Timothy L. Barklow, Daniel Kalvik
article en
2 citations

Abstract

The HALHF collaboration has discussed a new baseline for the project, taking into account comments from the accelerator community on various aspects of the original design. In particular, these concerned the practicality of the dual-purpose linac to accelerate both colliding positron bunches and the drive beams required for the plasma linac. In addition, many other aspects of the project were also considered; the discussion and conclusions are documented in this paper. Finally, a new baseline is outlined that has been optimised and addresses several weaknesses in the original design, has higher luminosity, reduced centre-of-mass energy boost and additional features such as two interaction points and positron polarisation as well as electron polarisation. Although HALHF has become longer and more expensive, it remains significantly smaller and cheaper than other mature Higgs factory designs currently under discussion.

Physics OpenVol. 23
Argonne National Laboratory (US), Rutherford Appleton Laboratory (GB), Universität Hamburg (DE), University of Oslo (NO), Cockcroft Institute (GB), SLAC National Accelerator Laboratory (US), Thomas Jefferson National Accelerator Facility (US), University of Oxford (GB)
Openalex Percentile: Top 19%
Particle Accelerators and Free-Electron Lasers
1.46
DOIOpen Access PDFOpenAlex
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