Measurement of the inelastic proton-proton cross section at √s = 7 TeV

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A measurement is presented of the inelastic proton-proton cross section at a centre-of-mass energy of √s=7 TeV. Using the CMS detector at the LHC, the inelastic cross section is measured through two independent methods based on information from (i) forward calorimetry (for pseudorapidity 3<|η|<5), in collisions where at least one proton loses more than 5×10-6 of its longitudinal momentum, and (ii) the central tracker (|η|<2.4), in collisions containing an interaction vertex with more than one, two, or three tracks with transverse momenta pT >200 MeV/c. The measurements cover a large fraction of the inelastic cross section for particle production over about nine units of pseudorapidity and down to small transverse momenta. The results are compared with those of other experiments, and with models used to describe high-energy hadronic interactions. © 2013 CERN.

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dc.contributor.authorChatrchyan, S.
dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A.M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAguilo, E.
dc.contributor.authorBergauer, T.
dc.contributor.authorDragicevic, M.
dc.contributor.authorErö, J.
dc.contributor.authorFabjan, C.
dc.contributor.authorFriedl, M.
dc.contributor.authorFrühwirth, R.
dc.contributor.authorGhete, V.M.
dc.contributor.authorHammer, J.
dc.contributor.authorHörmann, N.
dc.contributor.authorHrubec, J.
dc.contributor.authorJeitler, M.
dc.contributor.authorKiesenhofer, W.
dc.contributor.authorKnünz, V.
dc.contributor.authorKrammer, M.
dc.contributor.authorKrätschmer, I.
dc.contributor.authorLiko, D.
dc.contributor.authorMikulec, I.
dc.contributor.authorPernicka, M.
dc.contributor.authorRahbaran, B.
dc.contributor.authorRohringer, C.
dc.contributor.authorRohringer, H.
dc.contributor.authorSchöfbeck, R.
dc.contributor.authorStrauss, J.
dc.contributor.authorTaurok, A.
dc.contributor.authorWaltenberger, W.
dc.contributor.authorWalzel, G.
dc.contributor.authorWidl, E.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorMossolov, V.
dc.contributor.authorShumeiko, N.
dc.contributor.authorSuarez Gonzalez, J.
dc.contributor.authorBansal, M.
dc.contributor.authorBansal, S.
dc.contributor.authorCornelis, T.
dc.contributor.authorDe Wolf, E.A.
dc.contributor.authorGartner, J.
dc.contributor.authorJanssen, X.
dc.contributor.authorLuyckx, S.
dc.contributor.authorMucibello, L.
dc.contributor.authorOchesanu, S.
dc.contributor.authorRoland, B.
dc.contributor.authorRougny, R.
dc.contributor.authorSelvaggi, M.
dc.contributor.authorStaykova, Z.
dc.date.accessioned2026-10-18T20:30:43.476361879Z
dc.date.available2026-10-18T20:30:43.476361879Z
dc.date.issued2013
dc.description.abstractA measurement is presented of the inelastic proton-proton cross section at a centre-of-mass energy of √s=7 TeV. Using the CMS detector at the LHC, the inelastic cross section is measured through two independent methods based on information from (i) forward calorimetry (for pseudorapidity 3<|η|<5), in collisions where at least one proton loses more than 5×10-6 of its longitudinal momentum, and (ii) the central tracker (|η|<2.4), in collisions containing an interaction vertex with more than one, two, or three tracks with transverse momenta pT >200 MeV/c. The measurements cover a large fraction of the inelastic cross section for particle production over about nine units of pseudorapidity and down to small transverse momenta. The results are compared with those of other experiments, and with models used to describe high-energy hadronic interactions. © 2013 CERN.
dc.description.sponsorshipWe congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staffs at CERN and other CMS institutes, and acknowledge support from BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq , CAPES , FAPERJ , and FAPESP (Brazil); MEYS (Bulgaria); CERN ; CAS , MoST , and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER , SF0690030s09 and ERDF (Estonia); Academy of Finland , MEC , and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF , DFG , and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV , CONACYT , SEP , and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON , RosAtom , RAS and RFBR (Russia); MSTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEP , IPST and NECTEC (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).
dc.identifier.doi10.1016/j.physletb.2013.03.024
dc.identifier.endpage27
dc.identifier.issn0370-2693
dc.identifier.issue1-3
dc.identifier.scopus2-s2.0-84939493306
dc.identifier.startpage5
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/15873
dc.identifier.volume722
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCMS
dc.subjectForward energy
dc.subjectInelastic cross section
dc.subjectLHC
dc.subjectPhysics
dc.subjectTotal cross section
dc.subjectTracking efficiency
dc.titleMeasurement of the inelastic proton-proton cross section at √s = 7 TeV
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus94
rdl.oa.statusgold
rdl.source.indexSCOPUS