Il Nuovo Cimento A (1965-1970)

, Volume 68, Issue 3, pp 369–382 | Cite as

The B-meson andT-violation in radiative π decay

  • B. R. Holstein


It is shown that Kim and Primakoff’s suggestion that second-class axial vector currents are present in the semi-leptonic weak Hamiltonian leads toT-violating effects in π+→ℓ+vγ. Using Maiani’s model for these currents and dominating them by the B-meson, we estimate the size of possibleT-violating effects. Theoretical predictions are compared with current experimental evidence.


Покаэывается, что предположение Кима и Примакова о том, что аксиально-векторные токи второго класса присутствуют в полулептонном слабом Гамильтониане, приводит к Эффектам T-нарущения в π+→ℓ+vγ. Йспольэуя модель Майани для Этих токов и их доминантность, благодаря В-меэону, мы оцениваем величину воэможных Эффектов Г-нарущения. Теоретические предскаэания сравниваются с Эксперинментальным подтверждением токов.


Dispersion Relation Transverse Polarization Axial Vector Current Bjorken Limit Bremsstrahlung Contribution 
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B-меэон иT-нарущение в радиационном π-распаде


Si dimostra che il suggerimento di Kim e Primakoff che le correnti vettoriali assiali della seconda classe siano presenti nella hamiltoniana debole semileptonica porta a risultati che violanoT in π+→ℓ+vγ. Usando il modello di Maiani per queste correnti e dominandole col mesone B, si calcola l’ordine di grandezza degli effetti che violanoT. Si confrontano le previsioni teoriche con i dati sperimentali sulle correnti.


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Copyright information

© Società Italiana di Fisica 1970

Authors and Affiliations

  • B. R. Holstein
    • 1
  1. 1.Princeton UniversityPrinceton

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