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24 April 2024

» arxiv » hep-ex/0409048

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New results on the pd --> 3He eta production near threshold
H.-H. Adam ; A. Khoukaz ; N. Lang ; T. Lister ; R. Santo ; S. Steltenkamp ; R. Czyzykiewicz ; M. Janusz ; L. Jarczyk ; B. Kamys ; P. Moskal ; C. Piskor-Ignatowicz ; J. Przerwa ; J. Smyrski ; D. Grzonka ; K. Kilian ; W. Oelert ; T. Sefzick ; P. Winter ; M. Wolke ; P. Wuestner ; A. Budzanowski ; T. Rozek ; M. Siemaszko ; W. Zipper ;
Date:	22 Sep 2004
Journal:	Int.J.Mod.Phys. A20 (2005) 643-645
Subject:	hep-ex
Affiliation:	Munster U. & Jagellonian U. & Julich, Forschungszentrum & ZEL, Julich & Cracow, INP & Silesia U.
Abstract:	Measurements on the eta meson production in proton-deuteron collisions have been performed using the COSY-11 facility at COSY Juelich. Here we present preliminary results on total and differential cross sections for the pd --> 3He eta reaction at five excess energies between Q = 5.1 and Q = 40.6 MeV. The obtained angular distributions for the emitted eta mesons in the center of mass system expose a transition from an almost isotropic emission to a highly anisotropic distribution. The extracted total cross sections support a strong eta-3He final state interaction and will be compared with model predictions.
Source:	arXiv, hep-ex/0409048
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