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Measurement of p + d -> 3He + eta in S(11) Resonance

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arxiv nucl-ex/9912006 v2 pith:U7GKD44U submitted 1999-12-08 nucl-ex

classification nucl-ex
keywords detectorreactionsystemaboveachievedangularbeambreit
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We have measured the reaction p + d -> 3He + eta at a proton beam energy of 980 MeV, which is 88.5 MeV above threshold using the new ``germanium wall'' detector system. A missing--mass resolution of the detector system of 2.6% was achieved. The angular distribution of the meson is forward peaked. We found a total cross section of (573 +- 83(stat.) +- 69(syst.))nb. The excitation function for the present reaction is described by a Breit Wigner form with parameters from photoproduction.

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