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arXiv 1802.02613hep-ex
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$\sqrt{s}=$ ~(13)TeV质子-质子非弹性截面的测量

Measurement of the inelastic proton-proton cross section at $\sqrt{s}=$ 13 TeV

CMS Collaboration

摘要:

本文介绍了在质心能量为$\sqrt{s} =$ 13 TeV下,用CMS探测器测量质子-质子非弹性截面的结果。该分析基于前向量热计中具有能量沉积的事件,其覆盖-6.6 $< η<$ -3.0和+3.0 $< η<$ +5.2的伪快速性。对于具有$M_\mathrm{X} >$ 4.1 GeV和/或$M_\mathrm{Y} >$ 13 GeV的事件,获得了68.6 $\pm$ 0.5(syst)$\pm$ 1.6(lumi)mb的非弹性截面,其中$M_\mathrm{X}$和$M_\mathrm{Y}$分别是在负和正赝势下衍射解离系统的质量。与其他实验的结果进行了比较,以及从高能强子-强子相互作用模型的预测。

英文摘要:

A measurement of the inelastic proton-proton cross section with the CMS detector at a center-of-mass energy of $\sqrt{s} =$ 13 TeV is presented. The analysis is based on events with energy deposits in the forward calorimeters, which cover pseudorapidities of -6.6 $< η<$ -3.0 and +3.0 $< η<$ +5.2. An inelastic cross section of 68.6 $\pm$ 0.5 (syst) $\pm$ 1.6 (lumi) mb is obtained for events with $M_\mathrm{X} >$ 4.1 GeV and/or $M_\mathrm{Y} >$ 13 GeV, where $M_\mathrm{X}$ and $M_\mathrm{Y}$ are the masses of the diffractive dissociation systems at negative and positive pseudorapidities, respectively. The results are compared with those from other experiments as well as to predictions from high-energy hadron-hadron interaction models.

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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