Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2006-02-15
Phys.Lett.B635:23-29,2006
Physics
High Energy Physics
High Energy Physics - Experiment
accepted for publication in Phys. Lett. B
Scientific paper
10.1016/j.physletb.2006.02.037
The total cross section of the reaction pp->ppK+K- has been measured at excess energies Q=10 MeV and 28 MeV with the magnetic spectrometer COSY-11. The new data show a significant enhancement of the total cross section compared to pure phase space expectations or calculations within a one boson exchange model. In addition, we present invariant mass spectra of two particle subsystems. While the K+K- system is rather constant for different invariant masses, there is an enhancement in the pK- system towards lower masses which could at least be partially connected to the influence of the Lambda(1405) resonance.
Adam H.-H.
Budzanowski Andrzej
Czyzykiewicz Rafal
Grzonka D.
Janusz M.
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