Transition energies and optical oscillator strengths for inner-shell excitations of a quark nitrogen molecule

Experimental evidence for the model of quarks as the basic blocks of matter are only indirect. An alternative way to prove their existence is to look for changes in spectroscopic properties that could be influenced by fractionally charged nuclei, formed by the incorporation of an extra quark. In this Letter, we present results of ab initio calculations of the transition energies and optical oscillator strengths for a nitrogen molecule with fractionally charged nuclei. Our results show that both the transition energies and oscillator strengths for inner-shell excitation of the quark nitrogen molecule differ significantly from the normal molecule, being prone to experimental detection.