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Lattice contribution to charm photoproduction momentum distributions

Вклад рещетки в импульсные распределения при фоторождении очарованных адронов

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Il Nuovo Cimento A (1965-1970)

Summary

Using the lattice Hamiltonian QCD theory of Drell and his collaborators, we compute the lattice contribution to the momentum distributions for charmed hadrons produced in γ+p→c\(\bar c\)+X. When this lattice effect is added to the usual perturbative photon-gluon fusion results for γ+p→c\(\bar c\)+X, there is no obvious disagreement between the corresponding theoretical predictions and the limited observation which now exists.

Riassunto

Usando la teoria hamiltoniana del reticolo QCD di Drell e coll., si calcola il contributo del reticolo alle distribuzioni degli impulsi per adroni con charm prodotti in γ+p→→c\(\bar c\)+X. Quando questo effetto del reticolo si aggiunge ai risultati usuali perturbativi della fusione fotone-gluone per γ+p→c\(\bar c\)+X, non c’è ovvio disaccordo tra le corrispondenti previsioni teoriche e le limitate osservazioni che attualmente esistono.

Реэюме

Испольэуя теорию квантовой хромодинамики на рещетке Дрелла и его сотрудников, мы вычисляем рещеточный вклад в импульсные распределения для очарованных адронов, обраэованных в реакции γ+p→c\(\bar c\)+X. С учетом зтого рещетчатого зффекта не сушествует очевидного расхождения между соответствуюшими теоретическими предскаэаниями и ограниченными наблюдениями, которые сушествуют в настояшее время.

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  1. Department of Physics and Astronomy, the University of Tennessee, 37996-1200, Knoxville, TN

    B. F. L. Ward

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Ward, B.F.L. Lattice contribution to charm photoproduction momentum distributions. Nuov Cim A 97, 299–317 (1987). https://doi.org/10.1007/BF02734940

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