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# Charged particle transverse momentum spectra in $pp$ collisions at $s = 0.9$ and 7 TeV

The CMS Collaboration (2011) Charged particle transverse momentum spectra in $pp$ collisions at $s = 0.9$ and 7 TeV. Journal of High Energy Physics, 2011, [086].

Record type: Article

## Abstract

The charged particle transverse momentum (pT) spectra are presented for pp collisions at s √ =0.9 s=0.9 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-pT 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 x T ≡2p T /s √ xT≡2pT/s over the pT range up to 200 GeV/c. Using a combination of xT scaling and direct interpolation at fixed pT, a reference transverse momentum spectrum at s √ =2.76 s=2.76 TeV 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.

Full text not available from this repository.

Published date: August 2011
Organisations: Physics & Astronomy

## Identifiers

Local EPrints ID: 411294
URI: http://eprints.soton.ac.uk/id/eprint/411294
ORCID for Alexander Belyaev: orcid.org/0000-0002-1733-4408

## Catalogue record

Date deposited: 16 Jun 2017 16:32

## Contributors

Author: Serguei Chatrchyan
Corporate Author: The CMS Collaboration