مورد إلكتروني
Studies of the Dynamics of One-Photon Double-Photoionization of D_2O
| العنوان: | Studies of the Dynamics of One-Photon Double-Photoionization of D_2O |
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| المؤلفون: | Streeter, Zachary Louis |
| بيانات النشر: | eScholarship, University of California 2021-01-01 |
| تفاصيل مُضافة: | McCurdy, Clyde W.1 Streeter, Zachary Louis |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | One-photon double-photoionization (DPI) is an exquisitely sensitive experimental probe of electron correlation. For more than three decades, DPI theoretical and experimental efforts have produced a rich literature investigating simple atoms and diatomics like H2, but remained stagnant in terms of complexity of the systems. No complete experiments (measuring body-frame double-ionization- differential-cross-sections) of polyatomic systems with more than two electrons were done prior to this work because the residual dications did not dissociate in their ground and low lying states required by the COLd Target Recoil Ion Momentum Spectroscopy (COLTRIMS) experimental technique. A COLTRIMS experiment performed at the Advanced Light Source (ALS) found that the water di-cation does dissociate completely in its ground and low lying excited electronic states, opening the door to such studies. This successful DPI experiment on water also allows an investigation into the differences between body-frame inter-shell (different orbitals) and intra-shell (same orbital) electron correlation for the first time. For example, the 1b1 orbital is the lone-pair orbital of water that is perpendicular to the plane of the molecule and, therefore is expected to produce a DPI intra-shell cross-section that resembles an atom’s cross-section. The other lone-pair orbital of water, the 3a1 orbital, is in the plane of the molecule and, therefore is expected to produce a DPI intra-shell cross-section that has a structure more indicative of a molecule due to the correlated electrons’ motion perturbed by the the nuclei. Moreover, a DPI example of inter-shell cross-section could be one electron from the 1b1 orbital and the other correlated electron from the 1a1 orbital, which has never been calculated before for the body-frame. Thus, an ab initio investigation of DPI of water provides a path to new physics not yet explored and will further our understanding of electron correlation that is fundamental in |
| مصطلحات الفهرس: | Molecular physics, publication |
| URL: | |
| الإتاحة: | Open access content. Open access content public |
| ملاحظة: | application/pdf English |
| أرقام أخرى: | CDLER oai:escholarship.org:ark:/13030/qt4cn6f14w qt4cn6f14w https://escholarship.org/uc/item/4cn6f14w https://escholarship.org/ 1287297000 |
| المصدر المساهم: | UC MASS DIGITIZATION From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1287297000 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |