This title appears in the Scientific Report :
2013
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevC.87.065203 in citations.
Please use the identifier: http://hdl.handle.net/2128/5397 in citations.
Production of K^{+}K^{−} pairs in proton-proton collisions below the ϕ meson threshold
Production of K^{+}K^{−} pairs in proton-proton collisions below the ϕ meson threshold
The pp -> ppK+K- reaction was measured below the phi threshold at a beam energy of 2.568 GeV using the COSY-ANKE magnetic spectrometer. By assuming that the four-body phase space is distorted only by the product of two-body final state interactions, fits to a variety of one-dimensional distributi...
Saved in:
Personal Name(s): | Ye, Q. J. (Corresponding author) |
---|---|
Hartmann, M. / Chiladze, D. / Dymov, S. / Dzyuba, A. / Gao, H. / Gebel, R. / Hejny, V. / Kacharava, A. / Lorentz, B. / Mchedlishvili, D. / Merzliakov, S. / Mielke, M. / Mikirtytchiants, S. / Ohm, H. / Papenbrock, M. / Polyanskiy, A. / Serdyuk, V. / Stein, H. J. / Trusov, S. / Valdau, Yu. / Wilkin, C. / Wüstner, P. / Stroeher, Hans | |
Contributing Institute: |
Zentralinstitut für Elektronik; ZEA-2 Kernphysikalische Großgeräte; IKP-4 Experimentelle Hadrondynamik; IKP-2 |
Published in: | Physical Review C Physical review / C, 87 87 (2013 2013) 6 6, S. 065203 065203 |
Imprint: |
Woodbury, NY
Inst.
2013
2013-06-12 2013-06-01 |
DOI: |
10.1103/PhysRevC.87.065203 |
Document Type: |
Journal Article |
Research Program: |
COSY Hadron Structure and Dynamics (HSD) |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/5397 in citations.
The pp -> ppK+K- reaction was measured below the phi threshold at a beam energy of 2.568 GeV using the COSY-ANKE magnetic spectrometer. By assuming that the four-body phase space is distorted only by the product of two-body final state interactions, fits to a variety of one-dimensional distributions permit the evaluation of differential and total cross sections. The shapes of the distributions in the Kp and Kpp invariant masses are reproduced only if the K-p interaction is even stronger than that found at higher energy. The cusp effect in the K+K- distribution at the K0K0bar threshold is much more clear and some evidence is also found for coupling between the K-p and K0bar n channels. However, the energy dependence of the total cross section cannot be reproduced by considering only a simple product of such pair-wise final state interactions. |