P Moskal et al 2003 J. Phys. G: Nucl. Part. Phys. 29 2235 doi:10.1088/0954-3899/29/9/317
P Moskal1,2, H-H Adam3, A Budzanowski4, R Czyzykiewicz2, D Grzonka1, M Janusz2, L Jarczyk2, B Kamys2, A Khoukaz3, K Kilian1, C Kolf1, P Kowina1,5, T Lister3, W Oelert1, C Piskor-Ignatowicz2, J Przerwa2, C Quentmeier3, T Rozek1,5, R Santo3, G Schepers1, T Sefzick1, M Siemaszko5, J Smyrski2, A Strzałkowski2, A Täschner3, P Winter1, M Wolke1,7, P Wüstner6 and W Zipper5
Show affiliationsUtilizing a missing mass technique we investigate the pp → ppX reaction scanning beam energies in the range permitting to create a mass close to that of the f0(980) and a0(980) scalar resonances, but still below the K+K− threshold where they decay dominantly into ππ and πη mesons, respectively. Prior to the data analysis we introduce a notion of the close to threshold total cross-section for broad resonances. We estimated for the overlapping mesons a0 and f0 the total cross-section to be smaller than 430 nb at excess energy of Q = 5 MeV. The experiment has been performed at the Cooler Synchrotron (COSY) using the COSY-11 facility.
Issue 9 (September 2003)
Received 5 June 2003
Published 4 August 2003
P Moskal et al 2003 J. Phys. G: Nucl. Part. Phys. 29 2235
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