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dc.contributor.authorKhachatryan, Vardan
dc.contributor.authorSirunyan, A.M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, Wolfgang
dc.contributor.authorBergauer, T.
dc.contributor.authorBaarmand, Marc M.
dc.contributor.authorHohlmann, Marcus
dc.contributor.authorKalakhety, Himali
dc.contributor.authorYumiceva, Francisco
dc.contributor.authorAdams, M.R.
dc.date.accessioned2015-11-30T17:25:37Z
dc.date.available2015-11-30T17:25:37Z
dc.date.issued2015-07-06
dc.identifier.citationKhachatryan, V., A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, J. Ero, et al. “Measurement of Diffractive Dissociation Cross Sections in pp Collisions at √s = 7 TeV.” Phys. Rev. D 92, no. 1 (July 2015). © 2015 CERN, for the CMS Collaborationen_US
dc.identifier.urihttp://hdl.handle.net/11141/776
dc.description.abstractMeasurements of diffractive dissociation cross sections in pp collisions at √s = 7  TeV are presented in kinematic regions defined by the masses M[subscript X] and M[subscript Y] of the two final-state hadronic systems separated by the largest rapidity gap in the event. Differential cross sections are measured as a function of ξ[subscript X] = M[2 over X]/s in the region −5.5 < log[subscript 10]ξ[subscript X] < −2.5, for log[subscript 10]M[subscript Y] < 0.5, dominated by single dissociation (SD), and 0.5 < log[subscript 10]M[subscript Y] < 1.1, dominated by double dissociation (DD), where M[subscript X] and M[subscript Y] are given in GeV. The inclusive pp cross section is also measured as a function of the width of the central pseudorapidity gap Δη for Δ[subscript η] > 3, log[subscript 10]M[subscript X] > 1.1, and log[subscript 10]M[subscript Y] > 1.1, a region dominated by DD. The cross sections integrated over these regions are found to be, respectively, 2.99 ± 0.02(stat)[+0.32 over −0.29](syst)  mb, 1.18 ± 0.02(stat) ± 0.13(syst)  mb, and 0.58 ± 0.01(stat)[+0.13 over −0.11](syst)  mb, and are used to extract extrapolated total SD and DD cross sections. In addition, the inclusive differential cross section, dσ/dΔη[superscript F], for events with a pseudorapidity gap adjacent to the edge of the detector, is measured over Δη[superscript F] = 8.4 units of pseudorapidity. The results are compared to those of other experiments and to theoretical predictions and found compatible with slowly rising diffractive cross sections as a function of center-of-mass energy.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is made available in accordance with the publisher's policy. It may be subject to U.S. copyright law.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.titleMeasurement of diffractive dissociation cross sections in pp collisions at s =7TeVen_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevD.92.012003


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