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arXiv 1901.11490hep-phhep-ex
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质子-质子碰撞中中间态$ϕϕ$中心排他衍射产生$K^{+} K^{-} K^{+} K^{-}$

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

Piotr Lebiedowicz, Otto Nachtmann, Antoni Szczurek

备注：
39 pages, 19 figures
发表信息：
Phys. Rev. D 99, 094034 (2019)
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摘要：

本文研究了高能下的排他性$pp \to pp K^{+} K^{-} K^{+} K^{-}$反应。我们考虑的衍射机制与中间$ϕϕ$状态，其衰减到$K^{+} K^{-} K^{+} K^{-}$系统。我们包括$ϕ(1020)$ $\hat{t}/\hat{u}$通道交换和$f_{2}(2340)$ $s$通道交换机制。这个PDMATHAMT状态是张量胶球的候选者。我们讨论的可能性，使用$pp \to pp ϕϕ$过程中识别odderon交换。从WA 102实验数据中提取$\mathbb{P} \mathbb{O} ϕ$偶联的上限。在张量pomeron和矢量odderon的方法制定的过程中的振幅。我们调整我们的模型参数的WA 102数据，并提出了几个预测的ALICE，ATLAS，CMS和LHCb实验。积分截面的几个nb的顺序，包括相关的LHC实验的实验削减。给出了四K介子不变质量、两个$ϕ$介子之间的快度距离、特殊的“胶球过滤变量”、质子-质子相对方位角的分布。两个$ϕ$介子的快度差分布可以解释目前尚不清楚的$f_{2}(2340) \to ϕϕ$耦合.我们讨论了可能的作用的$f_{0}(2100)$，$η(2225)$，和$X(2500)$共振中观察到的$ϕϕ$通道中的辐射衰变的$J/ψ$。使用LHC实验的典型运动学切割，我们发现从我们的模型，odderon交换的贡献应该是可区分的$ϕ$介子之间的大快度距离和在该地区的大四k介子不变质量的其他贡献。至少，应该可以推导出该反应中odderon贡献的上限。

英文摘要：

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

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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