| Title |
|
|
|
Charged particle transverse momentum spectra in pp collisions at = 0.9 and 7 TeV
| |
| Author |
|
|
|
| |
| Institution/Organisation |
|
|
|
CMS Collaboration
| |
| Abstract |
|
|
|
| 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. | | |
| Language |
|
|
|
English
| |
| Source (journal) |
|
|
|
Journal of high energy physics. - Bristol | |
| Publication |
|
|
|
Bristol : 2011
| |
| ISSN |
|
|
|
1126-6708
1029-8479 [online]
| |
| Volume/pages |
|
|
|
8(2011), p. 1-39
| |
| Article Reference |
|
|
|
086
| |
| ISI |
|
|
|
000294901200075
| |
| Medium |
|
|
|
E-only publicatie
| |
| Full text (Publisher's DOI) |
|
|
| | |
| Full text (open access) |
|
|
| | |
|