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      https://www.ias.ac.in/article/fulltext/joaa/036/04/0623-0634

    • Keywords

       

      Atomic and molecular processes; plasmas; spectral line profiles.

    • Abstract

       

      Inour previous research, it has been demonstrated that inelastic processes in atom Rydberg-atom collisions, such as chemi-ionization and ($n-n'$) mixing, should be considered together. Here we will review the present state-of-the-art and the actual problems. In this context, we will consider the influence of the ($n-n'$)-mixing during a symmetric atom Rydberg-atom collision processes on the intensity of chemi-ionization process. It will be taken into account H(1s) + H*(𝑛) collisional systems, where the principal quantum number is $n \gg 1$. It will be demonstrated that the inclusion of ($n-n'$) mixing in the calculation, influences significantly on the values of chemi-ionization rate coefficients, particularly in the lower part of the block of the Rydberg states. Different possible channels of the ($n-n'$)-mixing influence on chemi-ionization rate coefficients will be demonstrated. The possibility of interpretation of the ($n-n'$)-mixing influence will be considered on the basis of two existing methods for describing the inelastic processes in symmetrical atom Rydberg-atom collisions.

    • Author Affiliations

       

      A. A. Mihajlov1 V. A. Srećković1 Lj. M. Ignjatović1 A. N. Klyucharev2 M. S. Dimitrijević3 4 5 N. M. Sakan1

      1. Institute of Physics, Univesity of Belgrade, P.O. Box 57, 11001, Belgrade, Serbia.
      2. Department of Physics, St-Petersburg University, Ulianovskaya 1, 198904 St. Petersburg, Petrodvorets, Russia.
      3. Astronomical Observatory, Volgina 7, 11060 Belgrade 74, Serbia.
      4. Observatoire de Paris, 92195 Meudon Cedex, France.
      5. IHIS Techno Experts, Batajnički put 23, 11080 Zemun, Serbia.
    • Dates

       
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