Vector meson-baryon dynamics in photoproduction reactions around 2 GeV
We investigate the role of vector mesons and coupled-channel unitarization on photoproduction reactions o_ the proton at energies around 2 GeV. We explain the sudden drop on the γp → K0Σ+ cross section, observed recently by the CBELSA/TAPS collaboration, by a delicate interference between amplitudes...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2014-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20148105023 |
| Summary: | We investigate the role of vector mesons and coupled-channel unitarization on photoproduction reactions o_ the proton at energies around 2 GeV. We explain the sudden drop on the γp → K0Σ+ cross section, observed recently by the CBELSA/TAPS collaboration, by a delicate interference between amplitudes having K*Λ and K*Σ intermediate states modulated by the presence of a nearby N* resonance produced by our model, a feature that we have employed to predict its properties. We also show the importance of coupled-channel unitarization in the γp → K*0Σ+ reaction, measured recently by CBELSA/TAPS and CLAS with conflicting results. |
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| ISSN: | 2100-014X |