ANTONIO JOSÉ CUESTA VÁZQUEZ2026-01-292026-01-29202310.1088/1475-7516/2023/11/1032-s2.0-85179827484https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/37232Astronomy and AstrophysicsPhoton to axion conversion during Big Bang Nucleosynthesisresearch article