This Conceptual Design Report describes LUXE (Laser Und XFEL Experiment), an experimental campaign that aims to combine the high-quality and high-energy electron beam of the European XFEL with a powerful laser to explore the uncharted terrain of quantum electrodynamics characterised by both high energy and high intensity. We will reach this hitherto inaccessible regime of quantum physics by analysing high-energy electron-photon and photon-photon interactions in the extreme environment provided by an intense laser focus. The physics background and its relevance are presented in the science case which in turn leads to, and justifies, the ensuing plan for all aspects of the experiment: Our choice of experimental parameters allows (i) field strengths to be probed where the coupling to charges becomes non-perturbative and (ii) a precision to be achieved that permits a detailed comparison of the measured data with calculations. In addition, the high photon flux predicted will enable a sensitive search for new physics beyond the Standard Model. The initial phase of the experiment will employ an existing 40 TW laser, whereas the second phase will utilise an upgraded laser power of 350 TW. All expectations regarding the performance of the experimental set-up as well as the expected physics results are based on detailed numerical simulations throughout.
Bibliographical noteFunding Information:
We also thank the DESY directorate for funding this work through the DESY Strategy Fund. The work by B. Heinemann and C. Grojean was in part funded by the Deutsche Forschungsgemeinschaft under Germany’s Excellence Strategy—EXC 2121 “Quantum Universe”—390833306. H. Abramowicz and B. Heinemann would like to thank the German-Israel-Foundation (GIF) (grant number 1492). H. Abramowicz would also like to thank the Israel Academy of Sciences. The work by A. Hartin and M. Wing was supported by the Leverhulme Trust Research Project Grant RPG-2017-143 in the UK. The work of G. Perez is supported by grants from the BSF, ERC-COG, ISF, Minerva, and the Segre Research Award. A. Ilderton, B. King, S. Tang and A.J. Macleod acknowledge support from the Engineering and Physical Sciences Research Council (EPSRC) (Grant No. EP/S010319/1). G. Sarri wishes to acknowledge support from EPSRC (Grant Nos: EP/N027175/1 and EP/P010059/1). T. Blackburn acknowledges the use of resources provided by the Swedish National Infrastructure for Computing (SNIC) at the High Performance Computing Center North (HPC2N). The work of N. Tal Hod is supported by a research grant from the Estate of Moshe Glück, the Minerva foundation with funding from the German Ministry for Education and Research, the Israel Science Foundation (ISF) (Grant No. 708/20), the Anna and Maurice Boukstein Career Development Chair and the Estate of Emile Mimran. Y. Soreq and T. Ma are supported by grants from the ISF, BSF (NSF-BSF program), Azrieli Foundation and the Taub Family Foundation. A. Fedotov and A. Mironov were supported by the MEPhI Academic Excellence Project (Contract No. 02.a03.21.0005) and by the Russian Foundation for Basic Research (under grants No. 19-02-00643 and No. 20-52-12046). B. Heinemann, H. Harsh, X. Huang, R. Prasad, F. Salgado, U. Schramm, K Zeil and M. Zepf thank the Helmholtz Association and the Bundesministerium für Bildung und Forschung for the support via the 2018 Helmholtz Innovation Pool.
© 2021, The Author(s).
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ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry