Study of ϱ0 production in γd, γp and γn reactions at 7.5 GeV using linearly polarized photon beam

G. Alexander, J. Gandsman, A. Levy, D. Lissauer, L. M. Rosenstein

Research output: Contribution to journalArticlepeer-review

Abstract

The reaction γd→dππ, γp→pππ and γn→nππ were studied in the SLAC 82″ deuterium filled bubble chamber, exposed to a linearly polarized photon beam of 7.5 GeV. All three reactions are dominated by ρ{variant}0 production. The differential cross section has a slope of ∼6.5 GeV-2 for nucleon reactions and a slope of ∼27 GeV-2 for coherent deuteron reactions. The behaviour of the density matrix elements shows that ρ{variant} production conserves s-channel c.m.s. helicity and is dominated by natural parity exchange.

Original languageEnglish
Pages (from-to)445-453
Number of pages9
JournalNuclear Physics, Section B
Volume69
Issue number3
DOIs
StatePublished - 11 Feb 1974

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