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

U. Karshon; G. Yekutieli; D. Yaffe; A. Shapira; E. E. Ronat; Y. Eisenberg

doi:10.1016/0550-3213(72)90508-1

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

U. Karshon^*, G. Yekutieli, D. Yaffe, A. Shapira, E. E. Ronat, Y. Eisenberg

^*Corresponding author for this work

Department of Particle Physics and Astrophysics

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The coherent production of the final state pdπ⁺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 dπ^- 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.

Original language	English
Pages (from-to)	371-380
Number of pages	10
Journal	Nuclear Physics B
Volume	37
Issue number	2
DOIs	https://doi.org/10.1016/0550-3213(72)90508-1
Publication status	Published - 15 Feb 1972

Funding

We would like to thank Brookhaven National Laboratory for enabling us to obtain the pd exposure, and our scanning and measuring staff for their devoted efforts. We acknowledge the help of Mr. G.Berger and Dr. E.Hirsh in fitting the mass distributions.

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/0550-3213(72)90508-1

Cite this

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abstract = "The coherent production of the final state pdπ+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 dπ- 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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AU - Karshon, U.

AU - Yekutieli, G.

AU - Yaffe, D.

AU - Shapira, A.

AU - Ronat, E. E.

AU - Eisenberg, Y.

PY - 1972/2/15

Y1 - 1972/2/15

N2 - The coherent production of the final state pdπ+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 dπ- 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.

AB - The coherent production of the final state pdπ+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 dπ- 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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