DPG Phi
Verhandlungen
Verhandlungen
DPG

Münster 2002 – scientific programme

Parts | Days | Selection | Search | Downloads | Help

HK: Physik der Hadronen und Kerne

HK 5: Electromagnetic and Hadronic Probes I

HK 5.7: Talk

Monday, March 11, 2002, 18:15–18:30, D

Two Kaon Production at the φ - Meson Threshold with the MOMO-Experiment at COSY — •R. Jahn1, F. Bellemann1, A. Berg1, J. Bisplinghoff1, G. Bohlscheid1, J. Ernst1, F. Hinterberger1, R. Ibald1, L. Jarczyk2, R. Joosten1, A. Kozela3, H. Machner4, A. Magiera2, R. Maschuw1, T. Mayer-Kuckuk1, G. Mertler1, J. Munkel1, P.v. Rossen4, H. Schnitker1, J. Smyrski2, A. Strzalkowski2, and R. Tölle41Institut für Strahlen- und Kernphysik, Universität Bonn — 2Institute of Physics, Jagellonian University Cracow, Poland — 3Institute of Nuclear Physics, Cracow, Poland — 4Institut für Kernphysik, Forschungszentrum Jülich

The reaction pd3He K+ K was measured kinematically complete at the COSY synchroton at beam momenta near 2.6 GeV/c corresponding to c.m. energies above the K+ K threshold of 35 MeV, 40 MeV and 56 MeV. In total, some 6000 kaon pairs could be uniquely identified. The KK mass spectra are consistent with phase space topped by a clear signal of the φ meson, even at 35 MeV, which corresponds to just 2.8 MeV avbove the φ threshold. In contrast to the MOMO two pion production data measured with the reaction pd3He π+ π (Phys. Rev. C60 (1999) 061002) the two kaon angular distributions indicate pure s-wave production. The obtained cross sections, ranging into the sub-nanobarn domain, will be presented and discussed.
Supported by the BMBF.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2002 > Münster