Khachatryan,V.Sirunyan,A.M.Tumasyan,A.Adam,W.Bergauer,T.Dragicevic,M.Marchica,C.2021-01-242021-01-2420111126-67081029-8479https://doi.org/10.1007/JHEP05(2011)029https://hdl.handle.net/11147/10745Bose-Einstein correlations between identical particles are measured in samples of proton-proton collisions at 0.9 and 7TeV centre-of-mass energies, recorded by the CMS experiment at the LHC. The signal is observed in the form of an enhancement of number of pairs of same-sign charged particles with small relative momentum. The dependence of this enhancement on kinematic and topological features of the event is studied. Anticorrelations between same-sign charged particles are observed in the region of relative momenta higher than those in the signal region.eninfo:eu-repo/semantics/closedAccessHadron-Hadron scatteringArticle2-s2.0-8005316596710.1007/JHEP05(2011)029