dc.contributor.author | ALICE Collaboration | |
dc.date.accessioned | 2019-04-15T09:59:58Z | |
dc.date.available | 2019-04-15T09:59:58Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | ALICE Collaboration. (2019). Charged-particle pseudorapidity density at mid-rapidity in p–Pb collisions at √sNN = 8.16 TeV. <i>European Physical Journal C</i>, <i>79</i>(4), Article 307. <a href="https://doi.org/10.1140/epjc/s10052-019-6801-9" target="_blank">https://doi.org/10.1140/epjc/s10052-019-6801-9</a> | |
dc.identifier.other | CONVID_29721354 | |
dc.identifier.other | TUTKAID_81185 | |
dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/63494 | |
dc.description.abstract | The pseudorapidity density of charged particles, dNch/dη, in p–Pb collisions has been measured at a centreof-mass energy per nucleon–nucleon pair of √sNN = 8.16 TeV at mid-pseudorapidity for non-single-diffractive events. The results cover 3.6 units of pseudorapidity, |η| < 1.8. The dNch/dη value is 19.1 ± 0.7 at |η| < 0.5. This quantity divided by Npart /2 is 4.73±0.20, where Npart is the average number of participating nucleons, is 9.5% higher than the corresponding value for p–Pb collisions at √sNN = 5.02 TeV. Measurements are compared with models based on different mechanisms for particle production. All models agree within uncertainties with data in the Pb-going side, while HIJING overestimates, showing a symmetric behaviour, and EPOS underestimates the p-going side of the dNch/dη distribution. Saturation-based models reproduce the distributions well for η > −1.3. The dNch/dη is also measured for different centrality estimators, based both on the chargedparticle multiplicity and on the energy deposited in the ZeroDegree Calorimeters. A study of the implications of the large multiplicity fluctuations due to the small number of participants for systems like p–Pb in the centrality calculation for multiplicity-based estimators is discussed, demonstrating the advantages of determining the centrality with energy deposited near beam rapidity. | fi |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | |
dc.publisher | Springer Berlin Heidelberg | |
dc.relation.ispartofseries | European Physical Journal C | |
dc.rights | CC BY 4.0 | |
dc.subject.other | p–Pb collisions | |
dc.title | Charged-particle pseudorapidity density at mid-rapidity in p–Pb collisions at √sNN = 8.16 TeV | |
dc.type | article | |
dc.identifier.urn | URN:NBN:fi:jyu-201904122166 | |
dc.contributor.laitos | Fysiikan laitos | fi |
dc.contributor.laitos | Department of Physics | en |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | |
dc.date.updated | 2019-04-12T09:15:16Z | |
dc.type.coar | http://purl.org/coar/resource_type/c_2df8fbb1 | |
dc.description.reviewstatus | peerReviewed | |
dc.relation.issn | 1434-6044 | |
dc.relation.numberinseries | 4 | |
dc.relation.volume | 79 | |
dc.type.version | publishedVersion | |
dc.rights.copyright | © CERN for the benefit of the ALICE collaboration 2019 | |
dc.rights.accesslevel | openAccess | fi |
dc.subject.yso | hiukkasfysiikka | |
dc.format.content | fulltext | |
jyx.subject.uri | http://www.yso.fi/onto/yso/p15576 | |
dc.rights.url | https://creativecommons.org/licenses/by/4.0/ | |
dc.relation.doi | 10.1140/epjc/s10052-019-6801-9 | |
dc.type.okm | A1 | |