Analysis of the charge-exchange reaction $pp \rightarrow (p\pi^{+}) (p\pi^{-}$ and of \delta^{++}\delta^{0}$ production at the CERN ISR

The results of a systematic analysis of charge-exchange double dissociation in proton-proton collisions at the CERN Intersecting Storage Rings are presented. The data cover the entire ISR energy range between square root s=23 GeV and square root s=63 GeV at five standard energies. Double resonance p...

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Detalles Bibliográficos
Autores principales: Goggi, Giorgio V, Cavalli-Sforza, M, Conta, C, Fraternali, M, Impellizzeri, F, Mantovani, G C, Pastore, F, Rimoldi, A, Rossini, B
Lenguaje:eng
Publicado: 1978
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/0550-3213(78)90058-5
http://cds.cern.ch/record/133020
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author Goggi, Giorgio V
Cavalli-Sforza, M
Conta, C
Fraternali, M
Impellizzeri, F
Mantovani, G C
Pastore, F
Rimoldi, A
Rossini, B
author_facet Goggi, Giorgio V
Cavalli-Sforza, M
Conta, C
Fraternali, M
Impellizzeri, F
Mantovani, G C
Pastore, F
Rimoldi, A
Rossini, B
author_sort Goggi, Giorgio V
collection CERN
description The results of a systematic analysis of charge-exchange double dissociation in proton-proton collisions at the CERN Intersecting Storage Rings are presented. The data cover the entire ISR energy range between square root s=23 GeV and square root s=63 GeV at five standard energies. Double resonance production is observed in the Delta /sup ++/ Delta /sup 0/ and Delta /sup ++/N/sup 0/(1688) final states. The mass spectra of the p pi /sup -/ system show more pronounced resonant signals in the backward Jackson hemisphere. A detailed analysis ofdifferential cross sections shows a forward peak typical of absorbed pion exchanges decreasing as s/sup -1.81+or-0.06/, followed by a much gentler exponential behaviour associated with a trajectory typical of rho -A/sub 2/ exchange. The high-energy transition to this regime is also indicated by a dramatic change in the s-dependence of total cross sections as compared with low-energy data. (20 refs).
id cern-133020
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1978
record_format invenio
spelling cern-1330202019-09-30T06:29:59Zdoi:10.1016/0550-3213(78)90058-5http://cds.cern.ch/record/133020engGoggi, Giorgio VCavalli-Sforza, MConta, CFraternali, MImpellizzeri, FMantovani, G CPastore, FRimoldi, ARossini, BAnalysis of the charge-exchange reaction $pp \rightarrow (p\pi^{+}) (p\pi^{-}$ and of \delta^{++}\delta^{0}$ production at the CERN ISRParticle Physics - ExperimentThe results of a systematic analysis of charge-exchange double dissociation in proton-proton collisions at the CERN Intersecting Storage Rings are presented. The data cover the entire ISR energy range between square root s=23 GeV and square root s=63 GeV at five standard energies. Double resonance production is observed in the Delta /sup ++/ Delta /sup 0/ and Delta /sup ++/N/sup 0/(1688) final states. The mass spectra of the p pi /sup -/ system show more pronounced resonant signals in the backward Jackson hemisphere. A detailed analysis ofdifferential cross sections shows a forward peak typical of absorbed pion exchanges decreasing as s/sup -1.81+or-0.06/, followed by a much gentler exponential behaviour associated with a trajectory typical of rho -A/sub 2/ exchange. The high-energy transition to this regime is also indicated by a dramatic change in the s-dependence of total cross sections as compared with low-energy data. (20 refs).oai:cds.cern.ch:1330201978-07-14
spellingShingle Particle Physics - Experiment
Goggi, Giorgio V
Cavalli-Sforza, M
Conta, C
Fraternali, M
Impellizzeri, F
Mantovani, G C
Pastore, F
Rimoldi, A
Rossini, B
Analysis of the charge-exchange reaction $pp \rightarrow (p\pi^{+}) (p\pi^{-}$ and of \delta^{++}\delta^{0}$ production at the CERN ISR
title Analysis of the charge-exchange reaction $pp \rightarrow (p\pi^{+}) (p\pi^{-}$ and of \delta^{++}\delta^{0}$ production at the CERN ISR
title_full Analysis of the charge-exchange reaction $pp \rightarrow (p\pi^{+}) (p\pi^{-}$ and of \delta^{++}\delta^{0}$ production at the CERN ISR
title_fullStr Analysis of the charge-exchange reaction $pp \rightarrow (p\pi^{+}) (p\pi^{-}$ and of \delta^{++}\delta^{0}$ production at the CERN ISR
title_full_unstemmed Analysis of the charge-exchange reaction $pp \rightarrow (p\pi^{+}) (p\pi^{-}$ and of \delta^{++}\delta^{0}$ production at the CERN ISR
title_short Analysis of the charge-exchange reaction $pp \rightarrow (p\pi^{+}) (p\pi^{-}$ and of \delta^{++}\delta^{0}$ production at the CERN ISR
title_sort analysis of the charge-exchange reaction $pp \rightarrow (p\pi^{+}) (p\pi^{-}$ and of \delta^{++}\delta^{0}$ production at the cern isr
topic Particle Physics - Experiment
url https://dx.doi.org/10.1016/0550-3213(78)90058-5
http://cds.cern.ch/record/133020
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