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Inclusive K(S);(0)K(S);(0) resonance production in ep collisions at HERA |
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| Authors: | Chekanov S Derrick M Magill S Musgrave B Nicholass D Repond J Yoshida R Mattingly M C K Antonioli P Bari G Bellagamba L Boscherini D Bruni A Bruni G Cindolo F Corradi M Iacobucci G Margotti A Nania R Polini A Antonelli S Basile M Bindi M Cifarelli L Contin A De Pasquale S Sartorelli G Zichichi A Bartsch D Brock I Hartmann H Hilger E Jakob H-P Jüngst M Nuncio-Quiroz A E Paul E Samson U Schönberg V Shehzadi R Wlasenko M Brook N H Heath G P Morris J D Capua M Fazio S Mastroberardino A Schioppa M Susinno G Tassi E Kim J Y Ibrahim Z A Kamaluddin B Wan Abdullah W A T Ning Y Ren Z Sciulli F |
| Affiliation: | Argonne National Laboratory, Argonne, Illinois 60439-4815, USA. |
| Abstract: | Inclusive K_{S};{0}K_{S};{0} production in ep collisions at the DESY ep collider HERA was studied with the ZEUS detector using an integrated luminosity of 0.5 fb;{-1}. Enhancements in the mass spectrum were observed and are attributed to the production of f_{2}(1270)/a_{2};{0}(1320), f_{2};{'}(1525) and f_{0}(1710). Masses and widths were obtained using a fit which takes into account theoretical predictions based on SU(3) symmetry arguments, and are consistent with the Particle Data Group values. The f_{0}(1710) state, which has a mass consistent with a glueball candidate, was observed with a statistical significance of 5 standard deviations. However, if this state is the same as that seen in gammagamma-->K_{S};{0}K_{S};{0}, it is unlikely to be a pure glueball state. |
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