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Measurement of beam-recoil observables Ox, Oz and target asymmetry T for the reaction γp → K+Λ

Abstract : The double polarization (beam-recoil) observables Ox and Oz have been measured for the reaction γp → K+Λ from threshold production to E ∼ 1500MeV. The data were obtained with the linearly polarized beam of the GRAAL facility. Values for the target asymmetry T could also be extracted despite the use of an unpolarized target. Analyses of our results by two isobar models tend to confirm the necessity to include new or poorly known resonances in the 1900MeV mass region.
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http://hal.in2p3.fr/in2p3-00365529
Contributor : Emmanuelle Vernay <>
Submitted on : Monday, March 15, 2010 - 8:09:25 AM
Last modification on : Thursday, November 19, 2020 - 12:58:50 PM

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A. Lleres, O. Bartalini, V. Bellini, J.P. Bocquet, P. Calvat, et al.. Measurement of beam-recoil observables Ox, Oz and target asymmetry T for the reaction γp → K+Λ. European Physical Journal A, EDP Sciences, 2009, 39, pp.149-161. ⟨10.1140/epja/i2008-10713-4⟩. ⟨in2p3-00365529⟩

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