348444 20250630143500.0 10.17182/HEPDATA.133032 doi GSI-2024-00280 English ALICE Collaboration P:(DE-HGF)0 0 Corresponding author Underlying-event properties in pp and p$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV 2022 MISC BibTeX Dataset dataset dataset PUB:(DE-HGF)32 1705407875_3067158 PUB:(DE-HGF) Chart or Table 26 EndNote Dataset DataCite DATA_SET ORCID ResearchData DINI Journal Article GSI record: GSI-2024-00279 This article reports about the properties of the underlying event measured with ALICE at the LHC in pp and p-Pb collisions at $\sqrt{s_{\rm NN}}= 5.02$ TeV. The event activity, quantified by charged-particle number and summed-$p_{\rm T}$ densities, is measured as a function of the leading-particle transverse momentum ($p_{\rm T}^{\rm trig}$). These quantities are studied in three azimuthal-angle regions relative to the leading particle in the event: toward, away, and transverse. Results are presented for three different $p_{\rm T}$ thresholds (0.15, 0.5 and 1 GeV/$c$) at mid-pseudorapidity ($|\eta|<0.8$). The event activity in the transverse region, which is the most sensitive to the underlying event, exhibits similar behaviour in both pp and p-Pbcollisions, namely, a steep increase with $p_{\rm T}^{\rm trig}$ for low $p_{\rm T}^{\rm trig}$, followed by a saturation at $p_{\rm T}^{\rm trig} \approx 5 $GeV/$c$. The results from pp collisions are compared with existing measurements at other centre-of-mass energies. The quantities in the toward and away regions are also analyzed after the subtraction of the contribution measured in the transverse region. The remaining jet-like particle densities are consistent in pp and p-Pb collisions for $p_{\rm T}^{\rm trig} > 10$ GeV/$c$, whereas for lower $p_{\rm T}^{\rm trig}$ values the event activity is slightly higher in p-Pb than in pp collisions. The measurements are compared with predictions from the Monte Carlo event generators. 612 - Cosmic Matter in the Laboratory (POF4-612) G:(DE-HGF)POF4-612 POF4-612 POF IV 0 HGS-HIRe - HGS-HIRe for FAIR (HGS-HIRe) G:(DE-Ds200)HGS-HIRe HGS-HIRe 1 SUC-GSI-Heidelberg - Strategic university cooperation GSI-U Heidelberg (SUC-GSI-HE) G:(DE-Ds200)SUC-GSI-HE SUC-GSI-HE 2 SUC-GSI-Frankfurt - Strategic university cooperation GSI-U Frankfurt/M (SUC-GSI-FR) G:(DE-Ds200)SUC-GSI-FR SUC-GSI-FR 3 SUC-GSI-Darmstadt - Strategic university cooperation GSI-TU Darmstadt (SUC-GSI-DA) G:(DE-Ds200)SUC-GSI-DA SUC-GSI-DA 4 Dataset connected to DataCite LHC LHC: ALICE EXP:(DE-588)4398783-7 EXP:(DE-H253)LHC-Exp-ALICE-20150101 EXP:(DE-H253)LHC-Exp-ALICE-20150101 0 10.17182/HEPDATA.133032 Acharya, S. et.al. [Trieste] : SISSA, 2023 RelatedTo GSI-2024-00279 arXiv:2204.10389 ; CERN-EP-2022-041 Underlying-event properties in pp and p–Pb collisions at $ \sqrt{s_{\textrm{NN}}} $ = 5.02 TeV oai:repository.gsi.de:348444 VDB DE-HGF Forschungsbereich Materie Matter and the Universe G:(DE-HGF)POF4-610 G:(DE-HGF)POF4-612 G:(DE-HGF)POF4 G:(DE-HGF)POF4-600 G:(DE-HGF)POF Cosmic Matter in the Laboratory 0 2023 yes I:(DE-Ds200)ALI-20080822OR105 ALI ALICE 0 I:(DE-Ds200)DTL-20051214OR031 DTL Detektorlabor 1 I:(DE-Ds200)CIT-20110310OR121 CIT IT 2 I:(DE-Ds200)EXM-20080818OR100 EXM ExtreMe Matter Institute, EMMI 3 I:(DE-Ds200)Coll-CERN-ALICE ALICE@CERN Collaboration CERN: ALICE 4 dataset VDB I:(DE-Ds200)ALI-20080822OR105 I:(DE-Ds200)DTL-20051214OR031 I:(DE-Ds200)CIT-20110310OR121 I:(DE-Ds200)EXM-20080818OR100 I:(DE-Ds200)Coll-CERN-ALICE UNRESTRICTED