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20112026
most citedObservation of ultrafast solid-density plasma dynamics using femtosecond X-ray pulses from a free-electron laser

26 citations · 79 across the 34 of their papers we have counts for

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hep-ph2026

Probing keV mass QCD axions with the SACLA X-ray free electron laser

Charles Heaton, Jack W. D. Halliday, Taito Osaka +12

Axions are hypothetical particles, proposed to account for the invariance of CP symmetry in quantum chromodynamics. While axions and axion-like-particles are well-motivated by stri…

hep-ph2024★ 9 cited

Bounds on heavy axions with an X-ray free electron laser

Jack W. D. Halliday, Giacomo Marocco, Konstantin A. Beyer +18

We present new exclusion bounds obtained at the European X-ray Free Electron Laser facility (EuXFEL) on axion-like particles (ALPs) in the mass range 10^{-3} eV < m_a < 10^4 eV. Ou…