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Moskal, P. [Author]; Silarski, M. [Author]; Khoukaz, A. [Author]; Klaja, P. [Author]; Oelert, W. [Author]; Piskor-Ignatowicz, C. [Author]; Przerwa, J. [Author]; Rejdych, B. [Author]; Ritman, J. [Author]; Sefzick, T. [Author]; Siemaszko, M. [Author]; Smyrski, J. [Author]; Budzanowski, A. [Author]; Täschner, A. [Author]; Winter, P. [Author]; Wolke, M. [Author]; Wüstner, P. [Author]; Zielinski, M. J. [Author]; Zipper, W. [Author]; Zdebik, J. [Author]; Czerwinski, E. [Author]; Czyzykiewicz, R. [Author]; Gil, D. [Author]; Grzonka, D. [Author]; [...]

Study of the hadronic production of kaon pairs below the threshold for the phi meson

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  • Media type: E-Article
  • Title: Study of the hadronic production of kaon pairs below the threshold for the phi meson
  • Contributor: Moskal, P. [Author]; Silarski, M. [Author]; Khoukaz, A. [Author]; Klaja, P. [Author]; Oelert, W. [Author]; Piskor-Ignatowicz, C. [Author]; Przerwa, J. [Author]; Rejdych, B. [Author]; Ritman, J. [Author]; Sefzick, T. [Author]; Siemaszko, M. [Author]; Smyrski, J. [Author]; Budzanowski, A. [Author]; Täschner, A. [Author]; Winter, P. [Author]; Wolke, M. [Author]; Wüstner, P. [Author]; Zielinski, M. J. [Author]; Zipper, W. [Author]; Zdebik, J. [Author]; Czerwinski, E. [Author]; Czyzykiewicz, R. [Author]; Gil, D. [Author]; Grzonka, D. [Author]; [...]
  • imprint: Elsevier, 2008
  • Published in: Nuclear physics / B / Proceedings supplements 181-182, 194 - 198 (2008). doi:10.1016/j.nuclphysbps.2008.09.035
  • Language: English
  • DOI: https://doi.org/10.1016/j.nuclphysbps.2008.09.035
  • ISSN: 0920-5632
  • Keywords: Juelich COSY PS ; threshold: production ; K: pair production ; p p: interaction ; Phi(1020)
  • Origination:
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  • Description: The near threshold production of K+K- pairs in proton-proton collisions has been investigated at the cooler synchrotron COSY below and above the threshold for the $\phi$ meson using the COSY-11 and ANKE facilities, respectively. The excitation function determined for the pp-->ppK+K- reaction revealed a statistically significant enhancement close to the threshold which may plausibly be assigned to the influence of the K-p interaction. In addition, observed consistently by both groups, a strong enhancement at low values of the ratio of the K-p to K+p invariant mass distributions shows that the proton interacts much stronger with K- than with K+. In this report we focus on the measurements performed by the COSY-11 collaboration. We explain the experimental method used and present main results of completed analyses as well as a new qualitative elaboration of the ppK+K- events population on the Goldhaber plot. We conclude with the observation that event densities increase at the region where the influence from the K+K- interaction is expected.
  • Access State: Open Access