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|a Charged particle transverse momentum spectra in pp collisions at √ s = 0.9 and 7 TeV
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|b Springer Science and Business Media LLC,
|c 2021-10-27T19:57:06Z.
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|z Get fulltext
|u https://hdl.handle.net/1721.1/133887
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|a 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. Copyright CERN.
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|a Article
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|t 10.1007/JHEP08(2011)086
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|t Journal of High Energy Physics
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