Kaon pair production close to threshold
arXiv:hep-ex/0602030 · doi:10.1016/j.physletb.2006.02.037
Abstract
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.
accepted for publication in Phys. Lett. B
References in corpus (2)
Cited by in corpus (7)
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- General thoughts to the Kaon pair production in the threshold region
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