par Khachatryan, Vardan;Chabert, Eric 
;Charaf, Othman ;Clerbaux, Barbara ;De Lentdecker, Gilles ;Dero, Vincent ;Gay, Arnaud ;Hammad, Grégory ;Hreus, Tomas ;Marage, Pierre ;Vander Velde, Catherine ;Vanlaer, Pascal ;Wickens, John H. ; [et al.]
Référence The Journal of high energy physics, 2010, 9, 091
Publication Publié, 2010
;Charaf, Othman ;Clerbaux, Barbara ;De Lentdecker, Gilles ;Dero, Vincent ;Gay, Arnaud ;Hammad, Grégory ;Hreus, Tomas ;Marage, Pierre ;Vander Velde, Catherine ;Vanlaer, Pascal ;Wickens, John H. ; [et al.]Référence The Journal of high energy physics, 2010, 9, 091
Publication Publié, 2010
Article révisé par les pairs
| Résumé : | Results on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7TeV are presented, using data collected with the CMS detector over a broad range of pseudorapidity (η) and azimuthal angle (φ). Short-range correlations in Δη, which are studied in minimum bias events, are characterized using a simple "independent cluster" parametrization in order to quantify their strength (cluster size) and their extent in η (cluster decay width). Long-range azimuthal correlations are studied differentially as a function of charged particle multiplicity and particle transverse momentum using a 980 nb -1 data set at 7TeV. In high multiplicity events, a pronounced structure emerges in the two-dimensional correlation function for particle pairs with intermediate px of 1-3 GeV/c, 2.0 < |
