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Analysis of the reaction pd → pdπ+π−at 7 GeV/c

Authors
Journal
Nuclear Physics B
0550-3213
Publisher
Elsevier
Publication Date
Volume
37
Issue
2
Identifiers
DOI: 10.1016/0550-3213(72)90508-1

Abstract

Abstract The coherent production of the final state pd π + π − is studied in pd interactions at 7 GeV/ c. The reaction is dominated by strong production of Δ ++(1236) and by a low-mass d π − enhancement (d ∗) at ∼ 2200 MeV. The pure I = 1 2 pπ +π − spectrum shows a significant narrow peak at ∼ 1470 MeV lying on a small background. A double-Regge fit describes the low mass region on the average, but does not reproduce the narrow peak.

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