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Measurement of the Inelastic Proton-Proton Cross Section at $\sqrt{s} = 13$  TeV with the ATLAS Detector at the LHC

2016-10-26Artigo científico Acesso aberto
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dc.contributor.authorATLAS collaboration (2858 authors)
dc.contributor.authorAguilar-Saavedra, Juan Antonio
dc.contributor.authorAmor Dos Santos, Susana Patricia
dc.contributor.authorAnjos, Nuno
dc.contributor.authorAraque, Juan Pedro
dc.contributor.authorCantrill, Robert
dc.contributor.authorCarvalho, João
dc.contributor.authorCastro, Nuno Filipe
dc.contributor.authorConde Muiño, Patricia
dc.contributor.authorDa Cunha Sargedas De Sousa, Mario Jose
dc.contributor.authorFiolhais, Miguel
dc.contributor.authorGalhardo, Bruno
dc.contributor.authorGomes, Agostinho
dc.contributor.authorGonçalo, Ricardo
dc.contributor.authorJorge, Pedro
dc.contributor.authorLopes, Lourenco
dc.contributor.authorMachado Miguens, Joana
dc.contributor.authorMaio, Amélia
dc.contributor.authorManeira, José
dc.contributor.authorOleiro Seabra, Luis Filipe
dc.contributor.authorOnofre, António
dc.contributor.authorPedro, Rute
dc.contributor.authorSantos, Helena
dc.contributor.authorSaraiva, João
dc.contributor.authorSilva, José
dc.contributor.authorTavares Delgado, Ademar
dc.contributor.authorVeloso, Filipe
dc.contributor.authorWolters, Helmut
dc.date.accessioned2019-02-04T10:17:10Z
dc.date.available2019-02-04T10:17:10Z
dc.date.issued2016-10-26
dc.date.updated2019-02-04T10:17:10Z
dc.description.abstractThis 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 energy.
dc.description.versionPeer Reviewed
dc.identifierPhys.Rev.Lett. 117 (2016) 182002; DOI 10.1103/PhysRevLett.117.182002
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevLett.117.182002
dc.identifier.urihttp://hdl.handle.net/10400.26/27110
dc.language.isoeng
dc.titleMeasurement of the Inelastic Proton-Proton Cross Section at $\sqrt{s} = 13$  TeV with the ATLAS Detector at the LHC
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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LIP - AP - Física de Partículas e Astropartículas