Isospin Dependence of the {eta}' Meson Production in Nucleon-Nucleon Collisions
- Nuclear Physics Department, Jagellonian University, 30-059 Cracow (Poland)
- Institut fuer Kernphysik, Universistaet Muenster, 48419 Muenster (Germany)
- Institute of Nuclear Physics, 31-342 Cracow (Poland)
- Institut fuer Kernpfysik, Forschungszentrum Juelich, 52425 Juelich (Germany)
According to the quark model, the masses of {eta} and {eta}' mesons should be almost equal. However, the empirical values of these masses differ by more than a factor of two. Similarly, though they have almost the same quark-antiquark content, the total cross section for the creation of these mesons close to the kinematical thresholds in the pp {yields} ppX reaction differs significantly. Using the COSY-11 detection setup we intend to determine whether this difference will also be so significant in the case of the production of these mesons in the proton-neutron scattering. Additionally, the comparison of the pp {yields} pp{eta}' and pn {yields} pn{eta}' total cross sections will allow to learn about the production of the {eta}' meson in the channels of isospin I = 0 and I = 1 and to investigate aspects of the gluonium component of the {eta}' meson.
- OSTI ID:
- 20726657
- Journal Information:
- AIP Conference Proceedings, Vol. 796, Issue 1; Conference: LEAP '05: 8. international conference on low energy antiproton physics, Bonn (Germany), 16-22 May 2005; Other Information: DOI: 10.1063/1.2130156; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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