• Corpus ID: 227238908

Average Doppler Shift of Gamma-ray Spectra of Positron Annihilation Process in Molecules

@article{Yuan2020AverageDS,
  title={Average Doppler Shift of Gamma-ray Spectra of Positron Annihilation Process in Molecules},
  author={Fang Yuan and Xiaoguang Ma and Yu Wu and Chuanlu Yang},
  journal={arXiv: Atomic and Molecular Clusters},
  year={2020}
}
This paper studies the gamma-ray spectra of positron annihilation processes in a series of molecules. The results show that the average valence electron energy of the molecules has a linear correlation with the full width at half maximum (FWHM) of the gamma-ray spectra. In addition, we defined a new physical quantity Average Doppler Shift (ADS), which can be used as the eigenvalue to describe the characteristics of the gamma-ray spectra. Since ADS contains all the information about the gamma… 

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