Archivio Istituzionale della RicercaThe 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 (s(NN))=5.02 TeV is presented. The average value at midrapidity is measured to be 16.810.71 (syst), which corresponds to 2.140.17 (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 s(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.
Pseudorapidity density of charged particles in p+Pb collisions at (s(NN))=5.02 TeV / Abelev, B., Adam, J., Adamova, D., Adare, A.M., Aggarwal, M.M., Rinella, G., Agnello, M., Agocs, A.G., Agostinelli, A., Ahammed, Z., Ahmad, N., Ahmad, A., Ahn, S.A., Ahn, S.U., Ajaz, M., Akindinov, A., Aleksandrov, D., Alessandro, B., Alici, A., Alkin, A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 1079-7114. - STAMPA. - 110:3(2013), pp. 1-10.
Pseudorapidity density of charged particles in p+Pb collisions at (s(NN))=5.02 TeV.
AGNELLO, MICHELANGELO;BUFALINO, STEFANIA
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 (s(NN))=5.02 TeV is presented. The average value at midrapidity is measured to be 16.810.71 (syst), which corresponds to 2.140.17 (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 s(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.
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https://hdl.handle.net/11583/2543397
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