Baum, L.
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A Study of the Charge Exchange Reaction p p --> n Delta++ (1232) at ISR Energies

de Kerret, H. ; Nagy, E. ; Orr, R.S. ; et al.
Phys.Lett.B 69 (1977) 372-376, 1977.
Inspire Record 120459 DOI 10.17182/hepdata.27539

We report on a study of the charge-exchange reaction pp → nΔ ++ (1232) at the CERN intersecting storage rings (ISR) in the energy range √ s = 23 to 53 GeV. From our analysis of the energy dependence of the total cross-section, of the differential cross-section d σ /d t and of the decay angular distributions we find evidence that pion exchange is dominant up to √ s = 23 GeV and that ( ϱ +A 2 ) exchange dominates the reaction for √ s ⩾ 30 GeV, as described by simple Regge-pole models.

6 data tables
Table 1

THE ERRORS ARE DUE TO STATISTICAL ERRORS AND BACKGROUND SUBTRACTION ERRORS COMBINED IN QUADRATURE.

Table 2

THE ERRORS ARE DUE TO STATISTICAL ERRORS AND BACKGROUND SUBTRACTION ERRORS COMBINED IN QUADRATURE.

Table 3

No description provided.

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