收集
发表于 2025-3-28 18:14:55
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类型
发表于 2025-3-28 21:46:33
Controlled Collapse and the Profiles of ‘Giant Resonances’r superficially paradoxical properties. In fact, they are in many ways far simpler than the more familiar autoionising resonances of atomic physics, with which it is constantly useful to contrast and compare them.
使残废
发表于 2025-3-28 23:02:34
Mayer-Fermi Theory and the Long Sequences in the Periodic Table5 and 60, and thereby explained the formation of the first rare-earth series of elements. In 1941, Maria Mayer. used the same model to predict the onset of a second rare-earth series with the orbital collapse of the 5f electron for atomic numbers between 86 and 91. She also showed that the abrupt ch
为现场
发表于 2025-3-29 06:44:07
Relativistic Correlations in Atomscause of two constructively interfering reasons: first of all, the laws describing the interactions of their constituents are the ones best known in all of Physics; secondly, their structure is comparatively simple and amenable to concise theoretical treatment. Because of these two reasons, physical
Left-Atrium
发表于 2025-3-29 09:43:30
Atomic Many Body Theory of Giant Resonances has centered on the large resonance structures which are observed in many cross sections. In particular, the rare gases show evidence of broad resonance-like structures, both for the outer (np). subshells and also for the inner (4d). subshell in the case of xenon. Similar structure has been also ob
Transfusion
发表于 2025-3-29 13:01:05
Giant Resonances in Atoms and in Fluorine Cage Moleculesabsorption spectra in this region it is necessary to generate columns of atomic vapour which will often be very hot and chemically aggressive, and to contain them without solid windows between two regions of high vacuum, the spectrometer and the light source, usually an electron synchrotron. The tec
Occupation
发表于 2025-3-29 17:59:27
Giant Resonances in the 4d Subshell Photoabsorption Spectra of Ba, Ba+, and Ba++on threshold by employing the time-dependent local density approximation (TDLDA). It is shown that for positive excitation frequencies, TOLDA is essentially equivalent to the conventional random phase approximation (RPA) which has been used so successfully in calculating photoabsorption of closed sh
助记
发表于 2025-3-29 22:13:52
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药物
发表于 2025-3-30 03:58:00
Giant Resonances in Heavy Elements: Open-Shell Effects, Multiplet Structure and Spin - Orbit Interacars later by Haensel et al. (2). Meanwhile, this effect characterised as the “delayed onset” of continuous absorption was explained in terms of a non Coulorabic central potential model by several theoreticians, e. g. Cooper (3), Combet Farnoux and Heno (4.), Fano and Cooper (5), Manson and Cooper (6
Femine
发表于 2025-3-30 05:31:56
Giant Resonances as a Probe of Collective Excitations in Atoms and Solidsn a metal, or other types of plasmas, it is well known and accepted that there are collective elementary excitations, the so called plasmons, which govern the response of the metal to external perturbations. It is then natural to ask the question whether a finite electronic system also may be charac