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" Charged-particle multiplicities in proton–proton collisions at √s=0.9 to 8 TeV "
Adam, J; Adamová, D; Aggarwal, MM; Rinella, GA; Agnello, M; Agrawal, N; Ahammed, Z; Ahmed, I; Ahn, SU; Aiola, S; Akindinov, A; Alam, SN; Aleksandrov, D; Alessandro, B; Alexandre, D; Molina, RA; Alici, A; Alkin, A; Almaraz, JRM; Alme, J; Alt, T; Altinpinar, S; Altsybeev, I; Prado, CAG; Andrei, C; Andronic, A; Anguelov, V; et al.
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AL
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| Record Number
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907398
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LA1zv7g9d6
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| Title & Author
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Charged-particle multiplicities in proton–proton collisions at √s=0.9 to 8nbsp;TeV [Article]\ Adam, J; Adamová, D; Aggarwal, MM; Rinella, GA; Agnello, M; Agrawal, N; Ahammed, Z; Ahmed, I; Ahn, SU; Aiola, S; Akindinov, A; Alam, SN; Aleksandrov, D; Alessandro, B; Alexandre, D; Molina, RA; Alici, A; Alkin, A; Almaraz, JRM; Alme, J; Alt, T; Altinpinar, S; Altsybeev, I; Prado, CAG; Andrei, C; Andronic, A; Anguelov, V; et al.
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2017
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Lawrence Berkeley National Laboratory
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© 2017, CERN for the benefit of the ALICE collaboration. A detailed study of pseudorapidity densities and multiplicity distributions of primary charged particles produced in proton–proton collisions, at s= 0.9, 2.36, 2.76, 7 and 8 TeV, in the pseudorapidity range | η| < 2 , was carried out using the ALICE detector. Measurements were obtained for three event classes: inelastic, non-single diffractive and events with at least one charged particle in the pseudorapidity interval | η| < 1. The use of an improved track-counting algorithm combined with ALICE’s measurements of diffractive processes allows a higher precision compared to our previous publications. A KNO scaling study was performed in the pseudorapidity intervals | η| < 0.5, 1.0 and 1.5. The data are compared to other experimental results and to models as implemented in Monte Carlo event generators PHOJET and recent tunes of PYTHIA6, PYTHIA8 and EPOS.
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