The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Torsten ÅKESSON

Torsten Åkesson

Professor

Torsten ÅKESSON

Dark Sector Physics with a Primary Electron Beam Facility at CERN

Author

  • Torsten Åkesson

Summary, in English

In this Expression of Interest, we propose a primary electron beam facility with the main motivations being (i) dark sector experiments, and (ii) to enable a suite of development projects in acceleration technology. We also present a detailed description of an experiment, the Light Dark Matter eXperiment, LDMX, which could make use of this facility to probe thermal dark matter over a majority of the viable sub-GeV mass range. We show that LDMX can achieve orders of magnitude more sensitivity than any previous or currently envisioned experiment. LDMX uses missing momentum to search for dark matter produced via {\it dark bremsstrahlung} produced in the interaction of electrons on a thin target. This requires a low-current, high repetition rate electron beam, with optimal energy of ∼16 \GeV. We propose to create this electron beam at CERN by restoring the SPS's electron acceleration capability.

Department/s

  • Particle and nuclear physics

Publishing year

2018

Language

English

Publication/Series

CERN SPSC Expressions of Interest

Document type

Report

Publisher

CERN

Topic

  • Subatomic Physics

Status

Published

Report number

CERN-SPSC-2018-023 ; SPSC-EOI-018