Charged particle transverse momentum spectra in pp collisions at √s = 0.9 and 7 TeV
Entity
UAM. Departamento de Física TeóricaPublisher
Springer Verlag; SISSA 2011Date
2011-08-19Citation
10.1007/JHEP08(2011)086
Journal of High Energy Physics 2011.8 (2011): 086
ISSN
1029-8479 (online); 1126-6708 (print)DOI
10.1007/JHEP08(2011)086Editor's Version
http://dx.doi.org/10.1007/JHEP08(2011)086Subjects
Hadron-hadron scattering; FísicaNote
Journal of High Energy Physics 2011.8 (2011): 086 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM
Rights
© SISSA 2011; Copyright CERNAbstract
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 ub-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-toleading order QCD and with an empirical scaling of measurements at di fferent collision energies using the scaling variable xT 2pT= √s over the pT range up to 200 GeV/c. Using a combination of xT scaling and direct interpolation at xed pT, a reference transverse momentum spectrum at √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
Files in this item
Google Scholar:Chatrchyan, S.
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Albajar Molera, Carmen
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Codispoti, G.
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Fernández Trocóniz Acha, Jorge
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