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Haug, E.G. (2023) Different Mass Definitions and Their Pluses and Minuses Related to Gravity. Foundations, 3, 199-219.
https://doi.org/10.3390/foundations3020017

has been cited by the following article:

• TITLE: Deriving the Relativistic Compton Wavelength Once Again: Correcting the Moving-Electron Derivation and Defending Relativistic Mass

  AUTHORS: Espen Gaarder Haug

  KEYWORDS: Compton Wavelength, Relativistic, de Broglie Wavelength, Planck Scale

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.14 No.7, July 14, 2026

  ABSTRACT: A previous paper argued that the Compton wavelength of a moving particle should be extended by using relativistic mass. We argue that the central result of that paper was correct, but that the derivation used to reach it contained an important error: the moving electron’s relativistic energy was included, while its initial relativistic momentum was omitted. This paper corrects the moving-electron Compton-scattering derivation and shows that the reduced relativistic Compton wavelength, λ C,r = ℏ mcγ , appears naturally when the full relativistic energy-momentum structure is included. Finally, we discuss the view that the Compton wavelength is the more fundamental matter wavelength, while the de Broglie wavelength is a derivative quantity. In Haug’s Planck-scale framework, the reduced relativistic Compton wavelength is bounded between the reduced rest-mass Compton wavelength and the Planck length, giving it a natural role in quantum-gravity considerations.