MOCD1

Journals of Accelerator Conferences Website (JACoW)

JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.

URL	https://doi.org/10.18429/JACoW-IPAC2025-MOCD1
Title	Updated baseline design for HALHF: the hybrid, asymmetric, linear Higgs factory
Authors	E. Adli, C. Lindstrøm, D. Kalvik, E. Hørlyk, J. Chen, K. Sjobak University of Oslo A. Seryi Thomas Jefferson National Accelerator Facility B. List, J. List, J. Wood, K. Poder, M. Thévenet, N. Walker Deutsches Elektronen-Synchrotron DESY B. Foster, R. D'Arcy John Adams Institute for Accelerator Science G. Moortgat-Pick Universität Hamburg M. Hogan, S. Gessner, T. Barklow SLAC National Accelerator Laboratory P. Burrows John Adams Institute P. Drobniak Laboratoire de Physique des 2 Infinis Irène Joliot-Curie, University of Oslo S. Boogert Cockcroft Institute V. Maslov National Science Centre, Deutsches Elektronen-Synchrotron DESY V. Cilento European Organization for Nuclear Research, John Adams Institute for Accelerator Science X. Lu Northern Illinois University
Abstract	Plasma accelerators promise significantly more compact, affordable and greener next-generation facilities, including linear colliders. While high-efficiency and -quality plasma acceleration of electron beams has been achieved, positron beams are much more challenging. The HALHF* (hybrid, asymmetric, linear Higgs factory) collider concept sidesteps the positron problem by accelerating them using RF cavities, while plasma acceleration to much higher energy is utilised for electrons. We report on an updated HALHF baseline design, which is more realistic, more upgradable to higher energies and includes additional capabilities such as positron polarization. Preliminary start-to-end simulations of the new baseline are also described.
Paper	download: MOCD1.pdf
Cite	BibTeX, LaTeX, Text/Word, RIS, EndNote
Conference	16th International Particle Accelerator Conference
Series
Location	Taipei, Taiwan
Date	01-06 Jun 2025
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	* Ming-Chyuan Lin - National Synchrotron Radiation Research Center * Yoichi Sato - KEK * Jui-Che Huang - National Synchrotron Radiation Research Center * David Button - Australian Nuclear Science and Technology Organisation * Ping-Shun Chuang - National Synchrotron Radiation Research Center
Online ISBN	978-3-95450-248-6
Online ISSN	2673-5490
Received	28 May 2025
Revised	01 June 2025
Accepted	02 June 2025
Issued	05 November 2025
DOI	10.18429/JACoW-IPAC2025-MOCD1
Pages	53-56
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.