Jet fragmentation transverse momentum distributions in pp and p-Pb collisions at √s, √sNN = 5.02 TeV
| dc.contributor.author | ALICE collaboration | |
| dc.date.accessioned | 2021-11-18T12:32:44Z | |
| dc.date.available | 2021-11-18T12:32:44Z | |
| dc.date.issued | 2021 | |
| dc.identifier.citation | ALICE collaboration. (2021). Jet fragmentation transverse momentum distributions in pp and p-Pb collisions at √s, √sNN = 5.02 TeV. <i>Journal of High Energy Physics</i>, <i>2021</i>(9), Article 211. <a href="https://doi.org/10.1007/JHEP09(2021)211" target="_blank">https://doi.org/10.1007/JHEP09(2021)211</a> | |
| dc.identifier.other | CONVID_101930030 | |
| dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/78700 | |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | eng | |
| dc.publisher | Springer | |
| dc.relation.ispartofseries | Journal of High Energy Physics | |
| dc.rights | CC BY 4.0 | |
| dc.subject.other | Jet fragmentation transverse momentum (jT) distributions are measured in proton-proton (pp) and proton-lead (p-Pb) collisions at √sNN = 5.02 TeV with the ALICE experiment at the LHC. Jets are reconstructed with the ALICE tracking detectors and electromagnetic calorimeter using the anti-kT algorithm with resolution parameter R = 0.4 in the pseudorapidity range |η| < 0.25. The jT values are calculated for charged particles inside a fixed cone with a radius R = 0.4 around the reconstructed jet axis. The measured jT distributions are compared with a variety of parton-shower models. Herwig and PYTHIA 8 based models describe the data well for the higher jT region | |
| dc.subject.other | while they underestimate the lower jT region. The jT distributions are further characterised by fitting them with a function composed of an inverse gamma function for higher jT values (called the “wide component”) | |
| dc.subject.other | related to the perturbative component of the fragmentation process | |
| dc.subject.other | and with a Gaussian for lower jT values (called the “narrow component”) | |
| dc.subject.other | predominantly connected to the hadronisation process. The width of the Gaussian has only a weak dependence on jet transverse momentum | |
| dc.subject.other | while that of the inverse gamma function increases with increasing jet transverse momentum. For the narrow component | |
| dc.subject.other | the measured trends are successfully described by all models except for Herwig. For the wide component | |
| dc.subject.other | Herwig and PYTHIA 8 based models slightly underestimate the data for the higher jet transverse momentum region. These measurements set constraints on models of jet fragmentation and hadronisation. | |
| dc.title | Jet fragmentation transverse momentum distributions in pp and p-Pb collisions at √s, √sNN = 5.02 TeV | |
| dc.type | article | |
| dc.identifier.urn | URN:NBN:fi:jyu-202111185711 | |
| dc.contributor.laitos | Fysiikan laitos | fi |
| dc.contributor.laitos | Department of Physics | en |
| dc.type.uri | http://purl.org/eprint/type/JournalArticle | |
| dc.type.coar | http://purl.org/coar/resource_type/c_2df8fbb1 | |
| dc.description.reviewstatus | peerReviewed | |
| dc.relation.issn | 1126-6708 | |
| dc.relation.numberinseries | 9 | |
| dc.relation.volume | 2021 | |
| dc.type.version | publishedVersion | |
| dc.rights.copyright | © CERN, for the benefit of the ALICE Collaboration. Article funded by SCOAP3. | |
| 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 | 10.1007/JHEP09(2021)211 | |
| dc.type.okm | A1 |
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