par Chatrchyan, Serguei;Clerbaux, Barbara
;De Lentdecker, Gilles
;Gay, Arnaud
;Hreus, Tomas
;Marage, Pierre
;Thomas, Laurent
;Vander Velde, Catherine
;Vanlaer, Pascal
;Charaf, Othman
;Dero, Vincent
;Hammad, Grégory
; [et al.]
Référence The Journal of high energy physics, 2011, 8, 086
Publication Publié, 2011











Référence The Journal of high energy physics, 2011, 8, 086
Publication Publié, 2011
Article révisé par les pairs
Résumé : | The charged particle transverse momentum (pT) spectra are presented for pp collisions at √s = 0:9 and 7TeV. The data samples were collected with the CMS detector at the LHC and correspond to integrated luminosities of 231 μb-1and 2.96 pb-1, respectively. Calorimeter-based high-transverse-energy triggers are employed to enhance the statistical reach of the high-pT measurements. The results are compared with leading and next-toleading order QCD and with an empirical scaling of measurements at different collision energies using the scaling variable xT - 2pT=ps over the pT range up to 136 GeV/c. Using a combination of xT scaling and direct interpolation at fixed pT, a reference transverse momentum spectrum at √s = 2:76TeV is constructed, which can be used for studying high-pT particle suppression in the dense QCD medium produced in heavy-ion collisions at that centre-of-mass energy. |