منابع مشابه
Alpha decay of 0 excited states
The one-level B-matrix approach is used to calculate alpha decay widths for several low-lying 0+, 2+, and 4+ excited states of the 0 nucleus, The interior wave functions are calculated within the ZBM (pqy2, d5rq, sq12) shell-model space with various effective interactions. The exterior wave functions are calculated from an n+ C folding model potential obtained with the M3Y interaction. A new me...
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One of the relatively simple physical processes that can be described successfully in the framework of introductory quantum theory is alpha decay. In this process, two protons and two neutrons out of a relatively large nucleus dissociate from the rest of the nucleus, form a separate subsystem and subsequently depart. In its full complexity, this process is not be describable, however a reasonab...
متن کاملQuantum Mechanics of Alpha Decay
Quantum mechanical basis for the Geiger-Nuttal Law. Determination of the half-lives of several species in the Uranium, Thorium and Actinium series through the use of a scintillator, solid-state detector and coincidence circuitry. The half-lives of Po, Rn and Po are determined at 181 ± 5 s, 4.49 ± .01 days and 163 ± 1 μs, respectively. Verification of the theoretical relationship between half-li...
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The coupling between the OD stretch v=2 level and benzene-ring modes in 2-methoxyphenol-OD (hydroxyl H replaced by D) is observed with ultrafast two-dimensional (2D) IR vibrational echo spectroscopy. Because of this coupling, the 1-2 transition peak in the 2D spectrum is split into a doublet with peaks of approximately equal amplitudes. Several molecules and solvents were used to study this phe...
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1. INTRODUCTION Vacuum selection is one of the most important issues in string/M theory. The standard cartoon of string vacua (see figure 1.1) showing all the ten dimensional perturbative string asymptopia together with the eleven-dimensional limit, refers to solutions with a large number of supersymmetries, and flat directions (moduli) in the effective action. 11d I IIB heterotic IIA Figure 1....
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ژورنال
عنوان ژورنال: Physical Review
سال: 1963
ISSN: 0031-899X
DOI: 10.1103/physrev.130.2000