The charged-particle pseudorapidity density measured over four units of pseudorapidity in nonsingle-diffractive p + Pb collisions at a center-of-mass energy per nucleon pair root s(NN) = 5.02 TeV is presented. The average value at midrapidity is measured to be 16.81 +/- 0.71 (syst), which corresponds to 2.14 +/- 0.17 (syst) per participating nucleon, calculated with the Glauber model. This is 16% lower than in nonsingle-diffractive pp collisions interpolated to the same collision energy and 84% higher than in d + Au collisions at root s(NN) = 0.2 TeV. The measured pseudorapidity density in p + Pb collisions is compared to model predictions and provides new constraints on the description of particle production in high-energy nuclear collisions. DOI: 10.1103/PhysRevLett.110.032301

Pseudorapidity Density of Charged Particles in p plus Pb Collisions at root s(NN)=5.02 TeV / B., A., J., A., D., A., A. M., A., M. M., A., G. A., R., M., A., A. G., A., A., A., Z., A., N., A., A. A., M., S. U., A., S. A., A., M., A., A., A., D., A., B., A., R. A., M., A., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 110:3(2013), p. 032301. [10.1103/physrevlett.110.032301]

Pseudorapidity Density of Charged Particles in p plus Pb Collisions at root s(NN)=5.02 TeV

L. Cunqueiro;MEDDI, Franco;
2013

Abstract

The charged-particle pseudorapidity density measured over four units of pseudorapidity in nonsingle-diffractive p + Pb collisions at a center-of-mass energy per nucleon pair root s(NN) = 5.02 TeV is presented. The average value at midrapidity is measured to be 16.81 +/- 0.71 (syst), which corresponds to 2.14 +/- 0.17 (syst) per participating nucleon, calculated with the Glauber model. This is 16% lower than in nonsingle-diffractive pp collisions interpolated to the same collision energy and 84% higher than in d + Au collisions at root s(NN) = 0.2 TeV. The measured pseudorapidity density in p + Pb collisions is compared to model predictions and provides new constraints on the description of particle production in high-energy nuclear collisions. DOI: 10.1103/PhysRevLett.110.032301
2013
heavy ion collisions, particle production, ALICE experiments
01 Pubblicazione su rivista::01a Articolo in rivista
Pseudorapidity Density of Charged Particles in p plus Pb Collisions at root s(NN)=5.02 TeV / B., A., J., A., D., A., A. M., A., M. M., A., G. A., R., M., A., A. G., A., A., A., Z., A., N., A., A. A., M., S. U., A., S. A., A., M., A., A., A., D., A., B., A., R. A., M., A., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 110:3(2013), p. 032301. [10.1103/physrevlett.110.032301]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/552558
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