2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/189796In the presence of large extra dimensions, the fundamental Planck scale can be much lower than the apparent four-dimensional Planck scale. In this setup, the weak gravity conjecture implies a much more stringent constraint on the UV cutoff for the U(1) gauge theory in four dimensions. This new energy scale may be relevant to LHC.8 pages; Refs added, version for publication in PLBHigh Energy Physics - TheoryHigh Energy Physics - Phenomenologytext