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タイトル
和文:Measurement of the Inelastic Proton-Proton Cross Section at $\sqrt{s} = 13$  TeV with the ATLAS Detector at the LHC 
英文:Measurement of the Inelastic Proton-Proton Cross Section at $\sqrt{s} = 13$  TeV with the ATLAS Detector at the LHC 
著者
和文: 山口洋平.  
英文: Youhei Yamaguchi.  
言語 English 
掲載誌/書名
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英文: 
巻, 号, ページ Vol. "117"    No. "18"    pp. "182002"
出版年月 2016年6月 
出版者
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英文: 
会議名称
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英文: 
開催地
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公式リンク http://inspirehep.net/record/1468167
 
DOI https://doi.org/10.1103/PhysRevLett.117.182002
アブストラクト This Letter presents a measurement of the inelastic proton-proton cross section using 60  μb-1 of pp collisions at a center-of-mass energy s of 13 TeV with the ATLAS detector at the LHC. Inelastic interactions are selected using rings of plastic scintillators in the forward region (2.07<|η|<3.86) of the detector. A cross section of 68.1±1.4  mb is measured in the fiducial region ξ=MX2/s>10-6, where MX is the larger invariant mass of the two hadronic systems separated by the largest rapidity gap in the event. In this ξ range the scintillators are highly efficient. For diffractive events this corresponds to cases where at least one proton dissociates to a system with MX>13  GeV. The measured cross section is compared with a range of theoretical predictions. When extrapolated to the full phase space, a cross section of 78.1±2.9  mb is measured, consistent with the inelastic cross section increasing with center-of-mass

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