Kaon pair production close to threshold

P. Winter , M. Wolke , H.-H. Adam , A. Budzanowski , R. Czyzykiewicz , D. Grzonka , M. Janusz , L. Jarczyk

show 19 more authors

B. Kamys A. Khoukaz K. Kilian P. Klaja P.Moskal W. Oelert C. Piskor-Ignatowicz J. Przerwa J. Ritman T. Rozek T. Sefzick M. Siemaszko J. Smyrski A. Taschner P. Wustner Z. Zhang W. Zipper (Forschungszentrum Julich IKP & ZEL; Jagellonian Univ.; Munster Univ.; Cracow INP; Silesia Univ.)

Authors on Pith no claims yet

classification ✦ hep-ex

keywords crossenhancementinvariantmassessectionsystemtotaladdition

0 comments

read the original 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.

This paper has not been read by Pith yet.

Kaon pair production close to threshold

discussion (0)