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Invariant spectrum for the equivalent-photon method

Инвариантный спектр для метода зквивалентных фотонов

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Il Nuovo Cimento A (1965-1970)

Summary

The equivalent-photon method is carefully studied and formulated in an invariant way for electroproductionlike processes. The invariant spectrum obtained is specified for two interesting limits: infinitely heavy target and quasi-real photon target. An application to the two-photon mechanism for the production of a state of effective massW is given and the fixed-W 2 cross-section is computed.

Riassunto

Si studia accuratamente il metodo dei fotoni equivalenti e se ne dà una formulazione invariante per processi del tipo della elettroproduzione. Si specifica lo spettro invariante che ne risulta per due casi limite interessanti: bersaglio di massa infinita e bersaglio di fotoni quasi reali. Si espone un’applicazione al meccanismo a due fotoni per la produzione di uno stato di massa effettivaW si calcola la sezione d’urto aW 2 fissato.

Реэюме

Внимательно исследуется метод зквлвалентных фотонов. Инвариант-ным обраэом метод зквивалентных фотонов формулируется для процессов, подо-бных злектророждению. Полученный инвариантный спектр определяется в двух интересных предельных случаях: бесконечно тяжелая мищень и кваэиреальная фо-тонная мищень. Рассматривается применение двухфотонного механиэма для рож-дения состояния с зффективной массойW. Вычисляется поперечное сечение при фиксированномW 2.

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Authors and Affiliations

  1. Laboratoire de Physique Théorique et des Hautes Energies, Paris

    G. Bonneau & F. Martin

Authors
  1. G. Bonneau
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  2. F. Martin
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Additional information

Postal address: Laboratoire de Physique Théorique et Hautes Energies, Tour 16, ler étage, Université Paris VI, 4 Place Jussieu, 75230 Paris CEDEX 05.

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Bonneau, G., Martin, F. Invariant spectrum for the equivalent-photon method. Nuov Cim A 21, 611–622 (1974). https://doi.org/10.1007/BF02731360

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