منابع مشابه
Particle decay of 12 Be excited states
The breakup of E/A = 50 MeV 12Be fragments following inelastic scattering off of hydrogen and carbon target nuclei has been studied. The breakup channels α+8He, 6He+6He, t + 9Li, and p+11Li were observed. Two doublets at excitation energies of 12.8 and 15.5 MeV were found for the α+8He channel. A low-energy shoulder in the excitation-energy spectra at 10.2 MeV indicates one or more additional s...
متن کاملParticle decay of Be excited states
The breakup of E/A=50 MeV Be fragments following inelastic scattering off of hydrogen and carbon target nuclei has been studied. The breakup channels α+He, He+He, t+Li , and p+Li were observed. Two doublets at excitation energies of 12.8 and 15.5 MeV were found for the α+He channel. A low-energy shoulder in the excitation-energy spectra at 10.2 MeV indicates additional states. Peaks at 13.5 and...
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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...
متن کاملSpontaneous decay of excited atomic states near a carbon nanotube.
The spontaneous decay process of an excited atom placed inside or outside a carbon nanotube is analyzed. Calculations have been performed for various achiral nanotubes. The effect of the nanotube surface is shown to increase the atomic spontaneous decay rate by up to 6 orders of magnitude compared with that of the same atom in vacuum. This increase is associated with nonradiative decay via surf...
متن کاملSemiclassical decay of excited string states on leading Regge trajectories.
We study the decay of hadrons based on a semiclassical string model. By including quark mass effects we find that the width to mass ratio Γ/m is an increasing function of m, which increases most rapidly for massive quarks. This is consistent with the available data. The decay probability of hadrons on the leading Regge trajectories is computed taking the effect of the string rotation into accou...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics Supplement
سال: 2013
ISSN: 0375-9687
DOI: 10.1143/ptp.60.161