Central exclusive diffractive production of $K^{+} K^{-} K^{+} K^{-}$ via the intermediate $\phi \phi$ state in proton-proton collisions
Abstract
We present a study of the exclusive reaction at high energies. We consider diffractive mechanisms with the intermediate state with its decay into the system. We include the -channel exchanges and the -channel exchange mechanism. This state is a candidate for a tensor glueball. We discuss the possibility to use the process in identifying the odderon exchange. An upper limit for the coupling is extracted from the WA102 experimental data. The amplitudes for the processes are formulated within the tensor-pomeron and vector-odderon approach. We adjust parameters of our model to the WA102 data and present several predictions for the ALICE, ATLAS, CMS and LHCb experiments. Integrated cross sections of order of a few nb are obtained including the experimental cuts relevant for the LHC experiments. The distributions in the four-kaon invariant mass, rapidity distance between the two mesons, special ``glueball filter variable'', proton-proton relative azimuthal angle are presented. The distribution in rapidity difference of both -mesons could shed light on the coupling, not known at present. We discuss the possible role of the , , and resonances observed in the channel in radiative decays of . Using typical kinematic cuts for LHC experiments we find from our model that the odderon-exchange contribution should be distinguishable from other contributions for large rapidity distance between the mesons and in the region of large four-kaon invariant masses. At least, it should be possible to derive an upper limit on the odderon contribution in this reaction.
Keywords
Cite
@article{arxiv.1901.11490,
title = {Central exclusive diffractive production of $K^{+} K^{-} K^{+} K^{-}$ via the intermediate $\phi \phi$ state in proton-proton collisions},
author = {Piotr Lebiedowicz and Otto Nachtmann and Antoni Szczurek},
journal= {arXiv preprint arXiv:1901.11490},
year = {2019}
}
Comments
39 pages, 19 figures