2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/217972We have searched for hadronic axions which may be produced in the Sun by a bremsstrahlung-like process, and observed in the HPGe detector by an axioelectric effect. A conservative upper limit on the hadronic axion mass m_a < 334 eV at 95% C.L. is obtained. Our experimental approach is based on the axion-electron coupling and it does not include the axion-nucleon coupling, which suffers from the large uncertainties related to the estimation of the flavor-singlet axial-vector matrix element.9 pages, 3 figures; version to appear in PLBHigh Energy Physics - Experimenttext