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| Hauptseite > Publikationsdatenbank > Production of pions, kaons and protons as a function of the transverse event activity in pp collisions at $\sqrt{s}=13$ TeV > print |
| 001 | 348436 | ||
| 005 | 20250630143500.0 | ||
| 024 | 7 | _ | |a 10.17182/HEPDATA.140124 |2 doi |
| 037 | _ | _ | |a GSI-2024-00272 |
| 041 | _ | _ | |a English |
| 100 | 1 | _ | |a ALICE Collaboration |0 P:(DE-HGF)0 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Production of pions, kaons and protons as a function of the transverse event activity in pp collisions at $\sqrt{s}=13$ TeV |
| 260 | _ | _ | |c 2023 |
| 336 | 7 | _ | |a MISC |2 BibTeX |
| 336 | 7 | _ | |a Dataset |b dataset |m dataset |0 PUB:(DE-HGF)32 |s 1705418489_3067155 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a Chart or Table |0 26 |2 EndNote |
| 336 | 7 | _ | |a Dataset |2 DataCite |
| 336 | 7 | _ | |a DATA_SET |2 ORCID |
| 336 | 7 | _ | |a ResearchData |2 DINI |
| 500 | _ | _ | |a Journal Article GSI record: GSI-2024-00271 |
| 520 | _ | _ | |a The production of $\pi^{\pm}$, $\mathrm{K}^{\pm}$, and $(\mathrm{\overline{p}})\mathrm{p}$ is measured in pp collisions at $\sqrt{s}\,= 13~\mathrm{TeV}$ in different topological regions of the events. Particle transverse momentum $(p_{\mathrm{T}})$ spectra are measured in the ``toward'', ``transverse'', and ``away'' angular regions defined with respect to the direction of the leading particle in the event. While the toward and away regions contain the fragmentation products of the near-side and away-side jets, respectively, the transverse region is dominated by particles from the Underlying Event (UE). The relative transverse activity classifier, $R_{\mathrm{T}} = N_{\mathrm{T}} / \langle N_{\mathrm{T}} \rangle$, is used to group events according to their UE activity, where $N_{\mathrm{T}}$ is the measured charged-particle multiplicity per event in the transverse region and $\langle N_{\mathrm{T}} \rangle$ is the mean value over all the analysed events. The first measurements of identified particle $p_{\mathrm{T}}$ spectra as a function of $R_{\mathrm{T}}$ in the three topological regions are reported. It is found that the yield of high transverse momentum particles relative to the $R_{\mathrm{T}}$-integrated measurement decreases with increasing $R_{\mathrm{T}}$ in both the toward and the away regions, indicating that the softer UE dominates particle production as $R_{\mathrm{T}}$ increases and validating that $R_{\mathrm{T}}$ can be used to control the magnitude of the UE. Conversely, the spectral shapes in the transverse region harden significantly with increasing $R_{\mathrm{T}}$. This hardening follows a mass ordering, being more significant for heavier particles. Finally, it is observed that the $p_{\mathrm{T}}$-differential particle ratios $(\mathrm{p} + \mathrm{\overline{p}})/(\pi^{+} + \pi^{-})$ and $(\mathrm{K}^{+} + \mathrm{K}^{-})/(\pi^{+} + \pi^{-})$ in the low UE limit $(R_{\mathrm{T}} \rightarrow 0)$ approach expectations from Monte Carlo generators such as PYTHIA 8 and EPOS LHC, where the jet-fragmentation models have been tuned to reproduce $\mathrm{e}^{+}\mathrm{e}^{-}$ results. |
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| 588 | _ | _ | |a Dataset connected to DataCite |
| 693 | _ | _ | |a LHC |e LHC: ALICE |1 EXP:(DE-588)4398783-7 |0 EXP:(DE-H253)LHC-Exp-ALICE-20150101 |5 EXP:(DE-H253)LHC-Exp-ALICE-20150101 |x 0 |
| 773 | _ | _ | |a 10.17182/HEPDATA.140124 |
| 787 | 0 | _ | |a Acharya, Shreyasi et.al. |d [Trieste] : SISSA, 2023 |i RelatedTo |0 GSI-2024-00271 |r arXiv:2301.10120 ; CERN-EP-2022-286 |t Production of pions, kaons, and protons as a function of the relative transverse activity classifier in pp collisions at $ \sqrt{s} $ = 13 TeV |
| 909 | C | O | |o oai:repository.gsi.de:348436 |p VDB |
| 913 | 1 | _ | |a DE-HGF |b Forschungsbereich Materie |l Matter and the Universe |1 G:(DE-HGF)POF4-610 |0 G:(DE-HGF)POF4-612 |3 G:(DE-HGF)POF4 |2 G:(DE-HGF)POF4-600 |4 G:(DE-HGF)POF |v Cosmic Matter in the Laboratory |x 0 |
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