A new measurements of the Pontecorvo reaction anti-p d ->p- p with the OBELIX spectrometer at LEAR
Articolo
Data di Pubblicazione:
1993
Abstract:
Antinucleon-nucleus annihilations into two-body final states containing only one or no meson
are unusual annihilations (Pontecorvo reactions), practically unexplored experimentally, with the
exception of the channel p d + r- p, for which only two low-statistics measurements exist. Their
physical interest lies in the possibility of exploring small-distance nuclear dynamics, in which an
important role can be played by non-nucleonic degrees of freedom. A new measurement of the
D d + r- p reaction rate at rest, performed with the OBELIX spectrometer at LEAR, with the
best statistics up to now and a careful evaluation of systematic effects is reported, together with
a critical analysis of the existing theoretical models. The measured branching ratio, which
confirms the previous results, can represent a reference point for the studies in the field.
Tipologia CRIS:
1.1 Articolo in rivista
Elenco autori:
V. G., Ableev h; A., Adamo a; M., Agnello b; F., Balestra g; G., Bendiscioli d; A., Bertin e; P., Boccaccio f; G., Bonazzola g; T., Bressani; M., Bruschi e; M. P., Bussa g; L., Busso g; D., Calve g; M., Capponi e; P., Cerello g; C., Cicalo a; M., Corradini ‘; S., Costa g; S., De Castro e; F., D’Isep g; A., Donzella ‘; I. V., Falomkin h; L., Fava *; A., Feliciello g; L., Ferrer0 g; A., Filippi g; V., Filippini d; D., Galli e; R., Garfagnini g; U., Gastaldi f; P., Gianotti i; A., Grass0 g; C., Guaraldo ‘; F., Iazzi b; A., Lanaro i; E., Lodi Rizzini ‘; M., Lombardi f; V., Lucherini i; A., Maggiora g; G., Maneva h; S., Marcello g; U., Marconi e; G. V., Margagliotti j; G., Maron f; A., Masoni a; I., Massa e; B., Minetti b; Montagna, PAOLO MARIA; M., Morando k; F., Nichitiu i; D., Panzieri g; G., Pauli j; M., Piccinini e; G., Piragino g; M., Poli ‘; G. B., Pontecorvo h; G., Puddu a; R. A., Ricci f*k; E., Rossetto g; Rotondi, Alberto; A. M., Rozhdes~ens~ h; P., Salvini d; L., Santi “‘; M. G., Sapozhnikov h; N., Semprini Cesari e; S., Serci a; R., Spighi e; P., Temnikov a; S., Tessaro j; F., Tosello *; V. I., Tretyak d; G., Usai a; L., Vannucci f; S., Vecchi e; G., Vedovato f; L., Venturelli ‘; M., Villa e; A., Vitale e; A., Zenoni n; A, ; Zoccoli, E; G., Zosi
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