Abstract
The first measurement of the cross section of inelastic proton-lead collisions at 5.02 TeV center-ofmass energy per nucleon-pair is presented. The cross section is corrected for effects beyond the experimental acceptance of CMS. Photon-induced interactions are studied in detail and are excluded from the result, as well as quasi-elastic excitation of the lead nuclei. The data is compared to measurements at much lower center-of-mass energies as well as to predictions of event generators and models. Also the inelastic cross section measured in pp collisions at different center-of-mass energies is reported. Presented at EPS-HEP 2015 European Physical Society Conference on High Energy Physics 2015 Inelastic cross section measurements performed with the CMS experiment Manfred Jeitler∗† Institute of High Energy Physics of the Austrian Academy of Sciences, Vienna, Austria E-mail: manfred.jeitler@cern.ch The first measurement of the cross section of inelastic proton-lead collisions at 5.02 TeV centerof-mass energy per nucleon-pair is presented. The cross section is corrected for effects beyond the experimental acceptance of CMS. Photon-induced interactions are studied in detail and are excluded from the result, as well as quasi-elastic excitation of the lead nuclei. The data is compared to measurements at much lower center-of-mass energies as well as to predictions of event generators and models. Also the inelastic cross section measured in pp collisions at different center-of-mass energies is reported. The European Physical Society Conference on High Energy Physics 22-29 July 2015 Vienna, Austria ∗Speaker. †For the CMS collaboration. c © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). http://pos.sissa.it/ Inelastic cross section measurements performed with the CMS experiment Manfred Jeitler
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