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arXiv 1502.02612hep-phhep-ex
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在LHC的中心衍射工艺中实现双$J/ψ$生产

Double $J/ψ$ production in central diffractive processes at the LHC

C. Brenner Mariotto, V. P. Goncalves

摘要:

本文研究了中心衍射过程中的双$J/ψ$产生。基于夸克偶素产生机制的非相对论性QCD(NRQCD)因子分解形式,我们估计了LHC能区双$J/ψ$产生截面的快度和横动量依赖性.对色单重态和色八重态通道的贡献进行了估计,并对LHC实验中运动学区域的总截面进行了预测。我们的结果表明,中心衍射过程的贡献是不可忽略的,它的研究可以是有用的,以检验分辨Pomeron模型。

英文摘要:

In this paper we study the double $J/ψ$ production in central diffractive processes considering the Resolved Pomeron model. Based on the nonrelativistic QCD (NRQCD) factorization formalism for the quarkonium production mechanism we estimate the rapidity and transverse momentum dependence of the cross section for the double $J/ψ$ production in diffractive processes at LHC energies. The contributions of the color-singlet and color-octet channels are estimated and predictions for the total cross sections in the kinematical regions of the LHC experiments are also presented. Our results demonstrate that the contribution of central diffractive processes is not negligible and that its study can be useful to test the Resolved Pomeron model.

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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