Resonance formation

The possibility that overlapping resonances interfere allows for the minimization of absorption of transient light through optical materials, which results in transparency for such systems under specific conditions. Two examples are discussed in this section the ORIT in the photoexcitation spectrum of pyrazine and the FIT with multicontinuum structures. The latter example is presented in detail since it elucidates the idea of overlapping resonances formation due to external laser fields, on which then the TOR can be applied. 

Abdoul-Carine H, Huels MA, lllenberger E, Sanche L (2001) Sensitizing DNA to secondary electron damage resonant formation of oxidative radicals from 5-halouracils. J Am Chem Soc 123 5354-5355... 

Although our measurements of epithermal resonant formation indicates molecular formation may no longer be a bottle-neck at appropraite conditions, the... 

Figure 10. Theta trajectories for the Be+ (Is-1) Auger pole from the zeroth (bi-variational SCF), second order ( 3), quasiparticle second order (Ej), diagonal Sph-TDA ( 3pA TIM) and quasiparticle diagonal Sph-TDA (E3ph TDA) decouplings of the dilated electron propagator. The disparity between the theta trajectories for the SCF and propagator poles makes apparent the magnitude of correlation and relaxation effects attending the Auger resonance formation.

The orbital picture is at the core of quantum-chemical thinking /122/ and a rigorous probe of this picture is clearly desirable. Though an orbital picture of resonance formation has persisted for long /18,19/, in the absence of a simple and unequivocal mechanism to identify the resonant orbital, its portrayal... 

Boudaiffa B, Cloutier P, Hunting D, Huels MA, Sanche L (2000). Resonant formation of DNA strand breaks by low-energy (3 to 20 eV) electrons. Science 287 1658-1660. 

It is evident that, in order to solve this problem, the SCF resonances of the composite system (A ) ought to be studied in full detail. However, in the numerical application described below, we have simplified the problem even further by assuming that one may obtain the resonances of the ionic system (A ) at least approximately by studying the "meta-stable" virtual (unoccupied) orbitals in the dilated SCF calculation performed on the target atom (A) alone. The details of such an approach for the study of a resonance formation and decay are given elsewhere10. 

We have here been very careful to refer to precise constructions and theorems in density matrix theory and resonance formation. It is clear, however, that the present development can be generalized to other more general processes in non-equilibrium quantum statistics, where the two natural basis partners g and f refer to density matrices and/or transition matrices [11],... 

The contribution from 7 exchange is of order TzIMz compared with Z exchange, so will be neglected in our qualitative discussion. It can easily be included. In fact, we will not actually evaluate the Feynman diagrams but derive the results in a fashion which highlights the physical ingredients. Thus, we shall view the process as a physical process of resonance formation and decay... 

In a recent work (Kumar and Sevilla 2007), the interaction of LEE with a model for DNA (S -dTMPH) was studied at the B3LYP level of theory considering both the vertical (TNI) and the adiabatic states of the radical anion. Since the TNI (shape resonance) formation has only a short life time of 10 to 10 s, the study was performed with the hypothesis that SSBs may occur before as well as after molecular relaxation, as shown in O Scheme 34-1. 

B. Boudaffa, P. Cloutier, D. Hunting, M. A. Huels, and L. Sanche, Science, 287,1658-1661 (2000). Resonance Formation of DNA Strand Breaks by Low-Energy (3 to 20eV) Electrons. 

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