2014/03/31 by Vladimir B. Kopeliovich, Galina K. Matushko, Irina K. Potashnikova · 2 citations
Physics and Astronomy · #nucl-th #hep-ph
published as J.Phys. G41 (2014) 125107 · The proof of the azimuthal focusing for arbitrary polar angles of the momenta of rescattered light particle is given (section 4). Amendments made in the text and figures. Presented at the International seminar Quarks-2014, Suzdal', Russia, 2-8 June 2014. 26 pages, 7 figures. To the memory of Lyonya Kondratyuk, outstanding scientist and person
arxiv created 2014/08/21 · arxiv updated 2014/11/12
We show analytically that in the cumulative particles production off nuclei multiple interactions lead to a glory-like backward focusing effect. Employing the small phase space method we arrived at a characteristic angular dependence of the production cross section dσ∼ 1/ √ π- θ near the strictly backward direction. This effect takes place for any number n≥ 3 of interactions of rescattered particle, either elastic or inelastic (with resonance excitations in intermediate states), when the final particle is produced near corresponding kinematical boundary. Such a behaviour of the cross section near the backward direction is in qualitative agreement with some of available data. Explanation of this effect and the angular dependence of the cross section near θ∼ π are presented for the first time.