Anomalije u kvantnim teorijama polja

  • Nicola Fabiano Univerzitet u Beogradu, Institut za nuklearne nauke „Vinča” - Institut od nacionalnog značaja za Republiku Srbiju, Beograd, Republika Srbija https://orcid.org/0000-0003-1645-2071
Ključne reči: simetrija, kvantne anomalije

Sažetak


Uvod/cilj: Neterina (Nöther) teorema povezuje simetrije Lagranžijana sa konzerviranim veličinama. Kvantni efekti poništavaju konzervirane veličine.

Metode: Dijagram trougla, integral puta, Pauli-Vilarsova  regularizacija.

Rezultati: Kvantni efekti koji kvare konzervirane veličine simetrija lokalne kalibracije ugrožavaju renormalizabilnost.

Zaključak: Anomalije je potrebno pažljivo tretirati kako bi se dobili tačni rezultati. Raspad π0 → γγ je možda najnaglašeniji „nemogući” efekat koji dozvoljavaju anomalije.

 

Reference

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Fabiano, N. 2022b. Regularization in quantum field theories. Vojnotehnički glasnik/Military Technical Courier, 70(3), pp.720-733. Available at: https://doi.org/10.5937/vojtehg70-34284

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Objavljeno
2023/01/30
Rubrika
Pregledni radovi