Abstract:We determine the proton and electron radii by analyzing constructive resonances at minimum entropy for elements with atomic number Z ≥ 11.We note that those radii can be derived from entropy principles and published photoelectric cross sections data from the National Institute of Standards and Technology (NIST). A resonance region with optimal constructive interference is given by a principal wavelength λ of the order of Bohr atom radius. Our study shows that the proton radius deviations can be measured. Moreover, in the case of the electron, its radius converges to electron classical radius with a value of 2.817 fm. Resonance waves afforded us the possibility to measure the proton and electron radii through an interference term. This term, was a necessary condition in order to have an effective cross section maximum at the threshold. The minimum entropy means minimum proton shape deformation and it was found to be (0.830 ± 0.015) fm and the average proton radius was found to be (0.825 − 0.0341; 0.888 + 0.0405) fm.
El femtoscopio implica el discernimiento y la diferenciación de cada uno de los elementos presentes en un átomo y molécula, esto implica lógicamente medición de los radios, jamás la posición exacta de protones, neutrones, núcleo y electrones. Este trabajo incrementa el nivel de precisión en la medición atómica y nuclear de los nanómetros, característico del átomo al orden de femtómetros característico de los nucleones.Utilizando los conceptos de resonancia y la ecuación de Schrödinger, se estudia la interacción de electrones y fotones de baja energía con la materia y se mide los radios, atómico y nuclear, para los elementos de la tabla periódica. Se trabajó con los datos públicos del NIST y la información de cromatografía de GC/MS de la FIQ-UCE.En síntesis, la resonancia de rayos X a bajas energías (<70keV) da la geometría atómica y nuclear de la capa K. En tanto que la resonancia de electrones a bajas energías (<2keV) entrega las energías de los electrones de las capas externas y los radios promedios de los átomos.
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