Aad, G;
Aaboud, M;
Abbott, B;
Abdallah, J;
Abdinov, O;
Abeloos, B;
Aben, R;
... ATLAS Collaboration, .; + view all
(2016)
Measurement of the Inelastic Proton-Proton Cross Section at √s=13 Tev with the ATLAS Detector at the LHC.
Physical Review Letters
, 117
(18)
, Article 182002. 10.1103/PhysRevLett.117.182002.
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Abstract
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 sqrt[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=M_{X}^{2}/s>10^{-6}, where M_{X} 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 M_{X}>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 energy.
| Type: | Article |
|---|---|
| Title: | Measurement of the Inelastic Proton-Proton Cross Section at √s=13 Tev with the ATLAS Detector at the LHC |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.117.182002 |
| Publisher version: | http://doi.org/10.1103/PhysRevLett.117.182002 |
| Language: | English |
| Additional information: | © 2016 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1507514 |
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