Summary
It is shown how the problem of tensor-trace and triangle anomalies can be avoided in the treatment of the nonweak-decay processes σ → 2γ and π0→2γ.
Riassunto
Si mostra che il problema delle anomalie del triangolo e del tensore-traccia si possono evitare nel trattamento dei processi di decadimento non deboli σ → 2γ e π0 → 2γ.
Реэюме
Покаэывается, как можно обойти проблему аномалий при рассмо-трении процессов неслабых распадов σ → 2γ и π0→2γ.
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References
C. G. Bollini andJ. J. Giambiagi:Nuovo Cimento B,12, 20 (1972);G. ’t Hooft andM. Veltman:Nucl. Phys. B,44, 189 (1972).
For earlier work, seeM. S. Chanowitz andJ. Ellis:Phys. Lett. B,40, 397 (1972);R. J. Crewther:Phys. Rev. Lett.,28, 1421 (1972).
For reviews, seeS. L. Adler: inLectures on Elementary Particles and Quantum Field Theory, edited byS. Deser, M. Grisaru andH. Pendleton (Cambridge, Mass., 1970), p. 1;S. B. Treiman, R. Jackiw andD. J. Gross:Lectures on Current Algebra and Its Applications (Princeton, N. J., 1972), p. 97.
S. N. Gupta:Proc. Phys. Soc. London Ser. A,64, 426 (1951). See alsoS. N. Gupta:Quantum Electrodynamics (New York, N. Y., 1977), p. 161.
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Work supported in part by the U.S. Department of Energy under Contract EY-76-S-02-2302.
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Gupta, S.N. Anomalies in nonweak interactions. Nuov Cim A 56, 152–158 (1980). https://doi.org/10.1007/BF02730161
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DOI: https://doi.org/10.1007/BF02730161