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Isospin Dependence of the Meson Production in Nucleon-Nucleon Collisions
According to the quark model, the masses of and 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...
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Published in: | AIP conference proceedings 2005-10, Vol.796 (1), p.164-167 |
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Main Authors: | , , , , , , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | According to the quark model, the masses of and 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 - > 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 - > pp and pn - > pn total cross sections will allow to learn about the production of the meson in the channels of isospin I = 0 and I = 1 and to investigate aspects of the gluonium component of the meson. |
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ISSN: | 0094-243X 1551-7616 |
DOI: | 10.1063/1.2130156 |