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Mass reversal and the universal interaction

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Il Nuovo Cimento (1955-1965)

Summary

It is assumed that the results of relativistic quantum theories should be invariant under the change in sign of the mass term in the Dirac Equation. The consequences of this principle for the Universal Fermi Interaction are that only mixtures of scalar, pseudoscalar and tensor (S, P, T) interactions or mixtures of vector and axial vector interactions (V, A) are possible. Thus no Fierz interferences are allowed. In order to obtain further restrictions on the Fermi interaction, symmetry principles of the kind proposed byPursey are considered. It is found that the only possible interactions are the following mutually excluding ones: (S+P±T), (A±V), (S+P±T/3), (S, P),A, V andT.

Riassunto

Si fa l’ipotesi che i risultati delle teorie quantiche relativistiche siano invarianti rispetto al cambiamento di segno del termine di massa nell’equazione di Dirac. In conseguenza di questo principio, solo miscele di interazioni fra scalari, pseudoscalari e tensori (S, P, T) o miscele di interazioni fra vettori e vettori assiali (V, A) sono possibili nell’interazione universale di Fermi. Pertanto non sono permesse interferenze di Fierz. Per ottenere ulteriori restrizioni all’interazione di Fermi, si considerano principi di simmetria del genere proposto daPursey. Si trova che le sole interazioni possibili sono le seguenti che si escludono reciprocamente: (S+P±T), (A±V), (S+P±T/3), (S, P),A, V 3T.

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References

  1. D. C. Peaslee:Phys. Rev.,91, 1447 (1953).

    Article  ADS  Google Scholar 

  2. C. N. Yang andJ. Tiomno:Phys. Rev.,79, 495 (1950).

    Article  MathSciNet  ADS  Google Scholar 

  3. M. Fierz:Zeits. Phys.,104, 553 (1947).

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  4. D. Pursey:Physica,18, 1017 (1952).

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Work supported in part by the Conselho Nacional de Pesquisas.

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Tiomno, J. Mass reversal and the universal interaction. Nuovo Cim 1, 226–232 (1955). https://doi.org/10.1007/BF02731766

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  • DOI: https://doi.org/10.1007/BF02731766

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