dc.contributor.author | ALICE Collaboration | |
dc.date.accessioned | 2017-07-03T08:44:28Z | |
dc.date.available | 2017-07-03T08:44:28Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | ALICE Collaboration. (2017). Production of π0 and η mesons up to high transverse momentum in pp collisions at 2.76 TeV. <i>European Physical Journal C</i>, <i>77</i>(5), Article 339. <a href="https://doi.org/10.1140/epjc/s10052-017-4890-x" target="_blank">https://doi.org/10.1140/epjc/s10052-017-4890-x</a> | |
dc.identifier.other | CONVID_27052244 | |
dc.identifier.other | TUTKAID_74058 | |
dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/54803 | |
dc.description.abstract | The invariant differential cross sections for inclusive
π0 and η mesons at midrapidity were measured in
pp collisions at √s = 2.76 TeV for transverse momenta
0.4 < pT < 40 GeV/c and 0.6 < pT < 20 GeV/c, respectively,
using the ALICE detector. This large range in pT
was achieved by combining various analysis techniques and
different triggers involving the electromagnetic calorimeter
(EMCal). In particular, a new single-cluster, shower-shape
based method was developed for the identification of highpT
neutral pions, which exploits that the showers originating
from their decay photons overlap in the EMCal. Above
4 GeV/c, the measured cross sections are found to exhibit a
similar power-law behavior with an exponent of about 6.3.
Next-to-leading-order perturbative QCD calculations differ
from the measured cross sections by about 30% for the π0,
and between 30–50% for the η meson, while generator-level
simulations with PYTHIA 8.2 describe the data to better than
10–30%, except at pT < 1 GeV/c. The new data can therefore
be used to further improve the theoretical description of
π0 and η meson production. | |
dc.language.iso | eng | |
dc.publisher | Springer Berlin Heidelberg | |
dc.relation.ispartofseries | European Physical Journal C | |
dc.subject.other | particel physics | |
dc.subject.other | proton-proton collisions | |
dc.subject.other | pions | |
dc.subject.other | eta mesons | |
dc.title | Production of π0 and η mesons up to high transverse momentum in pp collisions at 2.76 TeV | |
dc.type | article | |
dc.identifier.urn | URN:NBN:fi:jyu-201706283119 | |
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 | 2017-06-28T03:17:11Z | |
jyx.note | An erratum to this article is available at https://doi.org/10.1140/epjc/s10052-017-5144-7 | |
jyx.note.uri | https://doi.org/10.1140/epjc/s10052-017-5144-7 | |
dc.type.coar | http://purl.org/coar/resource_type/c_2df8fbb1 | |
dc.description.reviewstatus | peerReviewed | |
dc.relation.issn | 1434-6044 | |
dc.relation.numberinseries | 5 | |
dc.relation.volume | 77 | |
dc.type.version | publishedVersion | |
dc.rights.copyright | © CERN for the benefit of the CMS collaboration 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License. Funded by SCOAP3. | |
dc.rights.accesslevel | openAccess | fi |
dc.subject.yso | hiukkasfysiikka | |
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/s10052-017-4890-x | |
dc.type.okm | A1 | |