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Charged particle transverse momentum spectra in pp collisions at s=09 and 7 TeV (CROSBI ID 176428)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Karlo ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Dželalija, Mile ; Brigljević, Vuko et al. Charged particle transverse momentum spectra in pp collisions at s=09 and 7 TeV // The Journal of high energy physics, (2011), 8; 86-1-86-. doi: 10.1007/JHEP08(2011)086

Podaci o odgovornosti

Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Karlo ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Dželalija, Mile ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Morović, Srećko ; ... ; White, A.

engleski

Charged particle transverse momentum spectra in pp collisions at s=09 and 7 TeV

The charged particle transverse momentum (p T) spectra are presented for pp collisions at s=09 and 7 TeV. The data samples were collected with the CMS detector at the LHC and correspond to integrated luminosities of 231 μb−1 and 2.96 pb−1, respectively. Calorimeter-based high-transverse-energy triggers are employed to enhance the statistical reach of the high-p T measurements. The results are compared with leading and next-to-leading order QCD and with an empirical scaling of measurements at different collision energies using the scaling variable xT2pTs over the p T range up to 200 GeV/c. Using a combination of x T scaling and direct interpolation at fixed p T, a reference transverse momentum spectrum at s=276 TeV is constructed, which can be used for studying high-p T particle suppression in the dense QCD medium produced in heavy-ion collisions at that centre-of-mass energy.

CERN; CMS; LHC

The CMS collaboration

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Podaci o izdanju

(8)

2011.

86-1-86-

objavljeno

1126-6708

10.1007/JHEP08(2011)086

Povezanost rada

Fizika

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