Summary
The groud-state interaction potentials for the Ne(1S) and Ar(1S) systems with H+ as a partner have been obtained in a rather simple analytic form and with a parameter optimization that took into consideration a broad range of experimental data, thus extending and verifying earlier work which considered only scattering experiments. It is clearly shown by the present work that the available spectroscopic data on the location of the diatomic bound states and on the transitions between them, the measured differential cross-sections at various collision energies and the mobility coefficients at variousE/N values are all well reproduced by our final potential forms, as apposed to the poorer performances of earlier analytic potential forms, as apposed to the poorer performances of earlier analytic potentials that had been suggested for the same systems. As a consequence of the present analysis very accurate, multiproperty potential functions are thus obtained and provided for the two systems under study.
Riassunto
I potenziali di integrazione per gli stati fondamentali di Ne(1S) ed Ar(1S) con H+ sone stati ottenuti in forma analitica semplice e con un’ottimizzazione dei parametri presenti che ha tenuto in considerazione un ampio spettro di dati sperimentali. Si mostra chiaramente nel presente lavoro che i dati spettroscopici esistenti per gli stati legati delle due specie biatomiche e per le transizioni fra loro, le sezioni d’urto differenziali misurate e i coefficienti di mobilità sono tutti ben riprodotti dai presenti potenziali, i quali migliorano marcatamente le forme di interazione già esistenti in letteratura per questi sistemi.
Резюме
Определяются потенциалы взаимодействия для систем Ne(1S) и Ar(1S) с H+ в довольно простой аналитической форме и с оптимизацией параметров, которая учитывает щирокую область экспериментальных данных. Этот подход позволяет обобщить и проверить результаты предыдущей работы, где рассматривались только эксперименты по рассеянию. Сравнение с предыдущей работой показывает, что имеющиеся спектроскопические данные по локализации двухатомных связанных состояний и по перехдам между ними, измеренные дифференциальные поперечные сечения при различных энергиях соударения и коэффициенты подвижности при различных значенияхE/N хорошо воспроизводятся с помощью предложенных нами потенциалов. Таким образом для двух рассматриаемых систем получаются точные многоцелевые функции потенциалов.
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Gianturco, F.A., Patriarca, M. Accurate Ne−H+ and Ar−H+ interactions from spectroscopic and scattering states: A comparison of theory with experiments. Il Nuovo Cimento D 11, 1287–1305 (1989). https://doi.org/10.1007/BF02450546
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DOI: https://doi.org/10.1007/BF02450546