Skip to main content
SpringerLink
Log in

Contributions to positronium hyperfine splitting from second-order perturbation theory

Вклады в сверхтонкое расщепление позитрония из теории возмущений второго порядка

  • Published:
Il Nuovo Cimento A (1965-1970)

Summary

We investigate a perturbation theory for positronium energy levels, based on the Bethe-Salpeter equation. An analytic expression for the sum over intermediate states is obtained. Its application is illustrated by computing a second-order contribution to positronium hyperfine splitting.

Riassunto

Si ricerca una teoria della perturbazione per livelli di energia del positronio basandosi sull'equazione di Bethe e Salpether. Si ottiene un'espressione analitica per la somma di stati intermedi. Si illustra la sua applicazione calcolando un contributo del second'ordine alla separazione iperfina del positronio.

Резюме

На основе уравнения Бете-Солпитера мы исследуем теорию возмущений для уровней энергии позитрония. Получается аналитическое выражение для суммы по всем промежуточным состояниям. Полученное выражение применяется для вычисления вклада второго порядка в сверхтонкое расщепление позитрония.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. W. Buchmüller andE. Remiddi:Nucl. Phys. B,162, 250 (1980).

    Article  ADS  Google Scholar 

  2. R. Barbieri andE. Remiddi:Nucl. Phys. B,141, 413 (1978).

    Article  ADS  Google Scholar 

  3. W. E. Caswell andG. P. Lepage:Phys. Rev. A,18, 810 (1978).

    Article  ADS  Google Scholar 

  4. J. Schwinger:J. Math. Phys. (N. Y.),5, 1606 (1964).

    Article  MathSciNet  ADS  MATH  Google Scholar 

  5. This expression was first derived byW. E. Caswell andG. P. Lepage:Phys. Rev. A,18, 810 (1978).

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Laboratory of Nuclear Studies, Cornell University, 14853, Ithaca, N. Y.

    W. Buchmüller

  2. Istituto di Fisica dell'Università, Bologna

    E. Remiddi

  3. Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Bologna, Italia

    E. Remiddi

Authors
  1. W. Buchmüller
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. E. Remiddi
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Supported by the German Academic Exchange Service (Nato Science Fellowship).

Traduzione a cura della Redazione.

Переведено редакцуей.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Buchmüller, W., Remiddi, E. Contributions to positronium hyperfine splitting from second-order perturbation theory. Nuov Cim A 60, 109–119 (1980). https://doi.org/10.1007/BF02902439

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02902439

Search

Navigation