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One mechanism leading to the q-power law distribution has been proposed in the self-gravitational system. The friction force in the stochastic process may be nonlinearly relevant to the momentum of particle, whose friction coefficient can be expressed as the function of the kinetic energy of the particle. The correlation strength of noises is inhomogeneous in the such system, maybe due to the strength...
We report here the first measurements of valence orbital momentum profiles and binding energy for n-butane using a high-resolution (e,2e) spectrometer. The impact energy was 1200 eV plus binding energy (i.e., 1206 to 1232 eV) and symmetric non-coplanar kinematics was employed. The agreement between theory and experiment of orbital electron momentum distributions is generally good.
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