English

Central exclusive diffractive production of $K^{+} K^{-} K^{+} K^{-}$ via the intermediate $\phi \phi$ state in proton-proton collisions

High Energy Physics - Phenomenology 2019-05-29 v2 High Energy Physics - Experiment

Abstract

We present a study of the exclusive ppppK+KK+Kpp \to pp K^{+} K^{-} K^{+} K^{-} reaction at high energies. We consider diffractive mechanisms with the intermediate ϕϕ\phi \phi state with its decay into the K+KK+KK^{+} K^{-} K^{+} K^{-} system. We include the ϕ(1020)\phi(1020) t^/u^\hat{t}/\hat{u}-channel exchanges and the f2(2340)f_{2}(2340) ss-channel exchange mechanism. This f2f_{2} state is a candidate for a tensor glueball. We discuss the possibility to use the ppppϕϕpp \to pp \phi \phi process in identifying the odderon exchange. An upper limit for the POϕ\mathbb{P} \mathbb{O} \phi 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 ϕ\phi mesons, special ``glueball filter variable'', proton-proton relative azimuthal angle are presented. The distribution in rapidity difference of both ϕ\phi-mesons could shed light on the f2(2340)ϕϕf_{2}(2340) \to \phi \phi coupling, not known at present. We discuss the possible role of the f0(2100)f_{0}(2100), η(2225)\eta(2225), and X(2500)X(2500) resonances observed in the ϕϕ\phi \phi channel in radiative decays of J/ψJ/\psi. 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 ϕ\phi 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