The electronic structure of the hypothetical two-electron quark molecular ions associating a quark hydrogen atom Q with an ordinary hydrogen atom is investigated. The quark hydrogen atom is a system consisting of a nucleus of charge Z(Q) = 1 +/- 1/3 or Z(Q) = 1 +/- 2/3 and an electron. Potential energy curves of the low lying singlet and triplet Sigma(+) and Pi electronic states of the HQ quark hydrogen molecular ions are presented. Full configuration interaction expansions upon extended Gaussian-type orbital basis sets are employed. Rovibrational parameters are given. A comparison with the 'ordinary' hydrogen moleculule is made. Absorption spectra from the ground states and emission spectra from some low lying excited states are studied. The results show that hypothetical two-electron quark hydrogen molecular ions are stable. This study is intended as a contribution to an understanding of the physicochemical properties of fractional charge systems, and possibly as a suggestion for experimentalists involved in the search for free quarks.
STRUCTURE AND PROPERTIES OF FRACTIONAL CHARGE MOLECULAR-SYSTEMS - QUARK MOLECULAR-HYDROGEN IONS
CACELLI, IVO;
1995-01-01
Abstract
The electronic structure of the hypothetical two-electron quark molecular ions associating a quark hydrogen atom Q with an ordinary hydrogen atom is investigated. The quark hydrogen atom is a system consisting of a nucleus of charge Z(Q) = 1 +/- 1/3 or Z(Q) = 1 +/- 2/3 and an electron. Potential energy curves of the low lying singlet and triplet Sigma(+) and Pi electronic states of the HQ quark hydrogen molecular ions are presented. Full configuration interaction expansions upon extended Gaussian-type orbital basis sets are employed. Rovibrational parameters are given. A comparison with the 'ordinary' hydrogen moleculule is made. Absorption spectra from the ground states and emission spectra from some low lying excited states are studied. The results show that hypothetical two-electron quark hydrogen molecular ions are stable. This study is intended as a contribution to an understanding of the physicochemical properties of fractional charge systems, and possibly as a suggestion for experimentalists involved in the search for free quarks.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
