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Study of the production of charged pions, kaons, and protons in pPb collisions at vsNN = 5.02 TeV

Abstract: Spectra of identified charged hadrons are measured in pPb collisions with the CMS detector at the LHC at vsNN = 5.02 TeV . Charged pions, kaons, and protons in the transverse-momentum range pT˜0.1 –1.7 GeV/c and laboratory rapidity |y|<1 are identified via their energy loss in the silicon tracker. The average pT increases with particle mass and the charged multiplicity of the event. The increase of the average pT with charged multiplicity is greater for heavier hadrons. Comparisons to Monte Carlo event generators reveal that Epos Lhc, which incorporates additional hydrodynamic evolution of the created system, is able to reproduce most of the data features, unlike Hijing and Ampt. The pT spectra and integrated yields are also compared to those measured in pp and PbPb collisions at various energies. The average transverse momentum and particle ratio measurements indicate that particle production at LHC energies is strongly correlated with event particle multiplicity.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: European Physical Journal C, Vol. 74, Num. 6, Art. Num. 2847, (2014)

Editorial: Springer New York LLC

 Fecha de publicación: 01/06/2014

Nº de páginas: 27

Tipo de publicación: Artículo de Revista

 DOI: 10.1140/epjc/s10052-014-2847-x

ISSN: 1434-6044,1434-6052

Proyecto español: FPA2014-55295-C3-1-R ; FPA 2011-28694-C02-01

Url de la publicación: https://doi.org/10.1140/epjc/s10052-014-2847-x