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Pseudorapidity densities of charged particles with transverse momentum thresholds in pp collisions at √s=5.02 and 13 TeV

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The pseudorapidity density of charged particles with minimum transverse momentum (𝑝T) thresholds of 0.15, 0.5, 1, and 2 GeV/𝑐 is measured in pp collisions at the center of mass energies of √𝑠 =5.02 and 13 TeV with the ALICE detector. The study is carried out for inelastic collisions with at least on...

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Main Authors: Acharya, Shreyasi (Author) , Angelov, Venelin (Author) , Berdnikova, Anastasia (Author) , Bergmann, Luisa (Author) , Bórquez Cárcamo, Andrés G. (Author) , Crkovská, Jana (Author) , Danisch, Meike (Author) , Feuillard, Victor (Author) , Fokin, Ilya D. (Author) , Glässel, Peter (Author) , Kim, Minjung (Author) , Kroesen, Martin (Author) , López, Jorge (Author) , Nath, Abhishek (Author) , Pachmayer, Yvonne C. (Author) , Reygers, Klaus (Author) , Schicker, Rainer (Author) , Schmah, Alexander (Author) , Skorodumovs, Georgijs (Author) , Stachel, Johanna (Author) , Stiefelmaier, Stephan (Author) , Veen, Casper Arie van (Author) , Völkl, Martin (Author) , Windelband, Bernd (Author) , Yüncü, Alperen (Author) , Zanone, Federica (Author)
Corporate Author: ALICE (Author)
Format: Article (Journal)
Language:English
Published: 11 Oktober 2023
In: Physical review
Year: 2023, Volume: 108, Issue: 7, Pages: 1-16
ISSN:2470-0029
DOI:10.1103/PhysRevD.108.072008
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevD.108.072008
Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.108.072008
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Author Notes:ALICE Collaboration, S. Acharya, V. Anguelov, Y. Berdnikov, A. Berdnikova, L. Bergmann, A.G. Borquez Carcamo, J. Crkovská, M.C. Danisch, V.J.G. Feuillard, I. Fokin, S. Fokin, P. Glässel, M. Kim, M. Kroesen, J.A. Lopez, A. Nath, Y. Pachmayer, Reygers, A. Riabov, R. Schicker, A. Schmah, C. Schmidt, H. R. Schmidt, M. O. Schmidt, M. Schmidt, N. V. Schmidt, A. R. Schmier, R. Schotter, A. Schröter, J. Schukraft, K. Schwarz, K. Schweda, G. Scioli, E. Scomparin, J. E. Seger, Y. Sekiguchi, D. Sekihata, I. Selyuzhenkov, S. Senyukov, J. J. Seo, D. Serebryakov, L. Šerkšnytė, A. Sevcenco, T. J. Shaba, A. Shabetai, R. Shahoyan, A. Shangaraev, A. Sharma, B. Sharma, D. Sharma, H. Sharma, M. Sharma, S. Sharma, G. Skorodumovs, M. J. Stachel, S.F. Stiefelmaier, C.A. van Veen, M.A. Völkl, B. Windelband, A. Yuncu, F. Zanone ... [und 1015 weitere]
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Summary:The pseudorapidity density of charged particles with minimum transverse momentum (𝑝T) thresholds of 0.15, 0.5, 1, and 2 GeV/𝑐 is measured in pp collisions at the center of mass energies of √𝑠 =5.02 and 13 TeV with the ALICE detector. The study is carried out for inelastic collisions with at least one primary charged particle having a pseudorapidity (𝜂) within ±0.8 and 𝑝T larger than the corresponding threshold. In addition, measurements without 𝑝T-thresholds are performed for inelastic and nonsingle-diffractive events as well as for inelastic events with at least one charged particle having |𝜂| <1 in pp collisions at √𝑠 =5.02 TeV for the first time at the LHC. These measurements are compared to the pythia 6, pythia 8, and epos-lhc models. In general, the models describe the 𝜂 dependence of particle production well. However, discrepancies are observed for the highest transverse momentum threshold (𝑝T >2 GeV/𝑐), highlighting the importance of such measurements for tuning event generators. The new measurements agree within uncertainties with results from the ATLAS and CMS experiments obtained at √𝑠 =13 TeV.
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Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.108.072008

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