Summary
We use the resonance model to analyse the inelastic electron-proton scattering. The resonances are described by a dynamical-group model. One can obtain the rapid decrease for the transition form factors for large values of momentum transfer and show that all resonances fall off according to a dipole formula. We investigate the existence of the Bjorken limits for the structure functions and show that the model gives finite Bjorken limits for the functionsF 1(ω) andF 2(ω). We study the threshold behaviour of these functions and obtain the Drell-Yan formula.
Riassunto
Si usa il modello a risonanze per analizzare lo scattering anelastico elettrone-protone. Le risonzanze sono descritte da un modello di gruppo dinamico. Si può ottenere il rapido decremento dei fattori di forma di transizione per grandi valori dell’impulso trasferito e dimostrare che tutte le risonanze decadono secondo una formula dipolare. Si esamina se esistono limiti di Bjorken per le funzioni di struttura e si mostra che il modello dà limiti di Bjorken finiti per le funzioniF 1(ω) eF 2(ω). Si studia il comportamento di soglia di queste funzioni e si ottiene la formula di Drell-Yan.
Реэюме
Мы испольэуем реэонансную модель для аналиэа неупругого рас-сеяния злектрона протоном. Реэонансы описываются с помошью модели динами-ческой группы. Можно получить реэкое уменьщение форм-факторов переходов для больщих величин передаваемого импульса и покаэать, что все реэонансы умень-щаются в соответствии дипольной формулой. Мы исследуем сушествование пре-делов Бьёркена для структурных функций и покаэываем, что рассмотренная модель дает конечные пределы Бьёркена для функции F1(щ) и Fг2(щ). Мы иэучаем пороговое поведение зтих функций и получаем формулу Дрелла-Яна.
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This study has been supported by the Scientific and Technical Research Council of Turkey (Project No. TBAG-103).
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Akçay, H. Inelastic electron-proton scattering with a dynamical group model. Nuov Cim A 15, 305–315 (1973). https://doi.org/10.1007/BF02822904
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DOI: https://doi.org/10.1007/BF02822904