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

M. Betigeri; J. Bojowald; A. Budzanowski; A. Chatterjee; M. Drochner; J. Ernst; S. Foertsch; L. Freindl; D. Frekers; W. Garske; K. Grewer; A. Hamacher; S. Igel; J. Ilieva; R. Jahn; L. Jarczyk; G. Kemmerling; K. Kilian; S. Kliczewski; W. Klimala; D. Kolev; T. Kutsarova; J. Lieb; G. Lippert; H. Machner; A. Magiera; H. Nann; L. Pentchev; H. S. Plendl; D. Protic; B. Razen; P. von Rossen; B. R. Roy; R. Siudak; J. Smyrski; A. Strzalkowski; R. Tsenov; P. A. Zolnierczuk; K. Zwoll

doi:10.1016/s0370-2693(99)01456-2

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

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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.

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M. Betigeri, J. Bojowald, A. Budzanowski, A. Chatterjee, M. Drochner, J. Ernst, S. Foertsch, L. Freindl, D. Frekers, W. Garske, K. Grewer, A. Hamacher, S. Igel, J. Ilieva, R. Jahn, L. Jarczyk, G. Kemmerling, K. Kilian, S. Kliczewski, W. Klimala, D. Kolev, T. Kutsarova, J. Lieb, G. Lippert, H. Machner, A. Magiera, H. Nann, L. Pentchev, H. S. Plendl, D. Protic, B. Razen, P. von Rossen, B. R. Roy, R. Siudak, J. Smyrski, A. Strzalkowski, R. Tsenov, P. A. Zolnierczuk, K. Zwoll. 1999-12-09. Measurement of p + d -> 3He + eta in S(11) Resonance. https://doi.org/10.1016/s0370-2693(99)01456-2

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