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Kinematical singularities and constraints of helicity amplitudes for five-particle processes

Кинематические сингулярности и свяэи между спиральными амплитудами для пяти-частичных процессов

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Il Nuovo Cimento A (1971-1996)

Summary

We have extended to the five-particle processes involving massive particles of any spin, Raynal’s method of getting the kinematical singularities of the helicity amplitudes. This procedure allows us to build regularized helicity amplitudes. Constraints between these amplitudes have been explicitly derived.

Riassunto

Si estende ai processi di cinque particelle che coinvolgono particelle dotate di massa, aventi qualsiasi spin, il metodo di Raynal per ottenere le singolarità cinematiche delle ampiezze di elicità. Questo procedimento permette di costruire ampiezze di elicità regolarizzate. Si sono dedotti esplicitamente i vincoli fra queste ampiezze.

Реэюме

Мы обобшили метод Рейнала для получения кинематических сингу-лярностей спиральных амплитуд на случай пяти-частичных процессов, включаюших массивные частицы с проиэвольным спином. Эта процедура поэволяет построить регуляриэованные спиральные амплитуды. Явно выводятся свяэи между зтими амплитудами.

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Authors and Affiliations

  1. CERN, Geneva, Switzerland

    H. Navelet

  2. Institut de Physique Théorique, Université de Genève, Genève, Switzerland

    E. Pittet

Authors
  1. H. Navelet
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  2. E. Pittet
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Navelet, H., Pittet, E. Kinematical singularities and constraints of helicity amplitudes for five-particle processes. Nuov Cim A 7, 185–225 (1972). https://doi.org/10.1007/BF02728687

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  • DOI: https://doi.org/10.1007/BF02728687

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