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

Abstract

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.

8 pages, 2 figures, corrected typos in header

References in corpus (2)

• Near-Threshold Production of $\eta$-Mesons
• Are there eta-Helium bound states?

Cited by in corpus (24)

• Precision study of the eta-3He system using the d+p->3He+eta reaction
• Measurement of the dp -->3He eta reaction near threshold
• Close-to-threshold Meson Production in Hadronic Interactions
• Etaprime and Eta Mesons with Connection to Anomalous Glue
• Interaction of eta mesons with nuclei
• Near threshold eta meson production in the d+d->alpha+eta reaction
• Eta-N Final State Interaction in incoherent Photoproduction of Eta-mesons from the Deuteron near Threshold
• Precision study of the d+p->3He+eta reaction for excess energies between 20 and 60 MeV
• Study of the $pd{\to }^3\text{He}{K}^{+}{K}^{-}$ and $pd{\to }^3\text{He}\varphi$ reactions close to threshold
• Search for Quasi Bound $\eta$ Mesons
• Eta-mesic nuclei: past, present, future
• Bounds on the bound η^3He system
• The $\eta {-}^3$He scattering length revisited
• Three-body mechanism of $\eta$ production
• Cross section ratio and angular distributions of the reaction p + d -> 3He + eta at 48.8 MeV and 59.8 MeV excess energy
• Few-body aspects of the near threshold pseudoscalar meson production
• Total and differential cross sections of $\eta$-production in proton-deuteron fusion for excess energies between $Q_{\eta }=13\text{MeV}$ and $Q_{\eta }=81\text{MeV}$
• Comment on "Hadronic ${}^3$He$\eta$ production near threshold"
• Positive pion absorption on 3He using modern trinucleon wave functions
• Near threshold eta meson production in dp collisions
• New results on the pd --> 3He eta production near threshold
• Recent Physics At COSY--A Review
• $\eta$ bound state: theory and experiment
• Production of eta and 3pi mesons in the pd->3HeX reaction at 1360 and 1450 MeV