HALHF Project

The Hybrid Asymmetric Linear Higgs Factory Project - HALHF

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Introduction & Latest News

Welcome to the Hybrid Asymmetric Linear Higgs Factory (HALHF) Collaboration page. HALHF is a novel concept to build a relatively cheap "Higgs Factory" with a luminosity comparable to the conventional International Linear Collider (ILC) and Compact Linear Collider (CLIC) proposals. The HALHF concept is based on a hybrid design in which positrons are accelerated to 31 GeV in a conventional linac, which also provides the drive beams for a plasma-wakefield arm that accelerates electrons to 500 GeV. The energies are selected to produce Higgs particles in conjunction with Z bosons. The HALHF Collaboration is dedicated to R&D to prepare a pre-conceptual design in the context of the European Lab Directors' Group ESPP  Plasma Accelerators Working Group. 

 

Archived News

Next Meetings

EAAS Meeting, Hotel Hermitage, Elba 17 - 22 September, 2023

HALHF Collaboration Kick-off Meeting, DESY, Hamburg, Afternoon of 23.10.2023 - Indico link to follow

Publications

B. Foster, R. D'Arcy, C.A. Lindstrøm, "A hybrid, asymmetric, linear Higgs factory based on plasma-wakefield and radio-frequency acceleration", New J. Phys. 25 093037 (2023)

Talks given

ALEGRO 2023, Hamburg, Germany, 23.03.2023

A Hybrid Asymmetric Linear Higgs Factory (HALHF): B. Foster 

LCWS 2023, SLAC, Stanford, CA, USA, 15.5.2023:

A hybrid, asymmetric, linear Higgs factory based on plasma-wakefield and radio-frequency acceleration: B. Foster

Community Report on Accelerators Roadmap, Frascati, Italy, 12.07.2023:

The HALHF Project: C.A. Lindstrøm

Implications for the future physics programme: B. Foster

EPS 2023, Hamburg, Germany, 23.08.2023:

The HALHF Project: B. Foster

Physics Performance and Detector Requirements at an Asymmetric Higgs Factory: A. Laudrain

EAAC 2023, Elba, Italy, 22.09.2023:

A Hybrid Asymmetric Linear Higgs Factory (HALHF): C.A. Lindstrøm

Readiness of electron plasma linacs for a collider application: E. Adli

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