Il Nuovo Cimento A (1965-1970)

, Volume 99, Issue 1, pp 45–54 | Cite as

Inclusive weak decays of charmed mesons

  • L. Angelini
  • L. Nitti
  • M. Pellicoro
  • G. Preparata
Article
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Summary

We show that a complete understanding of the inclusive weak decays of the charmed meson D+ can be achieved within the realistic approach to quark interactions provided by anisotropic chromodynamics (ACD). A possible qualitative explanation is offered for the observed different behaviours of the D0 and F+ mesons. We find evidence against the nonleptonic «enhancement» predicted by asymptotic freedom.

PACS

14.40.Jz. - Charmed and other heavy mesons and meson resonances 

PACS

13.25. - Hadronic decays of mesons 

PACS

12.90. - Miscellaneous theoretical ideas and models 

Инклюэивные слабые распады очарованных меэонов

Реэюме

Мы покаэываем, что полное понимание инклюэивных слабых распадов очарованного меэона D+ может быть достигнуто в рамках реалистического подхода к вэаимодействию кварков, предполагая аниэотропную хромодинамику. Предлагается воэможное качественное общяснение для наблюденного раэличного поведения D0 и F+ меэонов. Мы получаем подтверждение против усиления нелептонных каналов, предскаэанного асимптотической свободой.

Riassunto

Si mostra che una comprensione completa dei decadimenti deboli inclusivi dei mesoni D+ può essere conseguita nell’ambito dell’approccio realistico alle interazioni tra quark fornito dalla cromodinamica anisotropa (ACD). Si presenta una possibile spiegazione qualitativa per il diverso comportamento osservato nel caso dei mesoni D0 ed F+. Ne consegue evidenza contraria all’amplificazione dei canali nonleptonici predetta dalla libertà asintotica.

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Copyright information

© Società Italiana di Fisica 1988

Authors and Affiliations

  • L. Angelini
    • 1
    • 2
  • L. Nitti
    • 1
    • 2
  • M. Pellicoro
    • 1
    • 2
  • G. Preparata
    • 3
  1. 1.Dipartimento di Fisica dell’UniversitàBariItalia
  2. 2.Istituto Nazionale di Fisica NucleareSezione di BariBariItalia
  3. 3.INFN-Laboratori Nazionali di FrascatiFrascatiItalia

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