Quark effects, meson-exchange currents and background in the d(e,e'p)delta reaction
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Quark effects, meson-exchange currents and background in the d(e,e'p)delta reaction

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Quark effects, meson-exchange currents and background in the d(e,e'p)delta reaction

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Gómez Tejedor, José Antonio; Oset Báguena, Eulogio Perfil
Aquest document és un/a article, creat/da en: 1994
We have studied in detail the cross section for the d( e, e' p) Δ reaction leading to the emission of a fast nucleon and a Δ at rest, which has been advocated as a tool to investigate quark effects in nuclei. We find that ordinary meson-exchange currents mechanisms dominate the quark-exchange effects in the region of excitation of the Δ nd could be competitive at higher energies. Furthermore, at these higher energies, the small cross sections for the quark signal, together with the presence of a background about one order of magnitude bigger than the quark signal, make in any case the extraction of information about quark-exchange currents effects extraordinarily difficult.

    Gómez Tejedor, José Antonio Oset Báguena, Eulogio 1994 Quark effects, meson-exchange currents and background in the d(e,e'p)delta reaction Nuclear Physics A 580 4 577 594
http://dx.doi.org/10.1016/0375-9474(94)90782-X
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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