Issue |
EPJ Web of Conferences
Volume 81, 2014
MESON 2014 – 13th International Workshop on Production, Properties and Interaction of Mesons
|
|
---|---|---|
Article Number | 05023 | |
Number of page(s) | 4 | |
Section | Theory - contributions | |
DOI | https://doi.org/10.1051/epjconf/20148105023 | |
Published online | 26 November 2014 |
https://doi.org/10.1051/epjconf/20148105023
Vector meson-baryon dynamics in photoproduction reactions around 2 GeV
1 Departament d’Estructura i Constituents de la Materia and Institut de Ciències del Cosmos, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain
2 Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigación de Paterna, Aptdo. 22085, 46071 Valencia, Spain
a e-mail: ramos@ecm.ub.edu
Published online: 26 November 2014
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.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.