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dc.contributor.authord'Enterria, David
dc.contributor.authorKrajczár, Krisztián
dc.contributor.authorPaukkunen, Hannu
dc.date.accessioned2015-08-24T06:53:04Z
dc.date.available2015-08-24T06:53:04Z
dc.date.issued2015
dc.identifier.citationd'Enterria, D., Krajczár, K., & Paukkunen, H. (2015). Top-quark production in proton–nucleus and nucleus–nucleus collisions at LHC energies and beyond. <i>Physics Letters B</i>, <i>746</i>, 64-72. <a href="https://doi.org/10.1016/j.physletb.2015.04.044" target="_blank">https://doi.org/10.1016/j.physletb.2015.04.044</a>
dc.identifier.otherCONVID_24781508
dc.identifier.otherTUTKAID_66541
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/46688
dc.description.abstractSingle and pair top-quark production in proton–lead (p–Pb) and lead–lead (Pb–Pb) collisions at the CERN Large Hadron Collider (LHC) and Future Circular Collider (FCC) energies, are studied with next-toleading-order perturbative QCD calculations including nuclear parton distribution functions. At the LHC, the pair-production cross sections amount to σtt¯ = 3.4 μb in Pb–Pb at √sNN = 5.5 TeV, and σtt¯ = 60 nb in p–Pb at √sNN = 8.8 TeV. At the FCC energies of √sNN = 39 and 63 TeV, the same cross sections are factors of 90 and 55 times larger respectively. In the leptonic final-state tt¯ → W +b W − ¯ b → b ¯ b νν with = e±,μ±, after typical acceptance and efficiency cuts, one expects about 90 and 300 top-quarks per nominal LHC-year and 4.7 · 104 and 105 per FCC-year in Pb–Pb and p–Pb collisions respectively. The total tt¯ cross sections, dominated by gluon fusion processes, are enhanced by 3–8% in nuclear compared to p–p collisions due to an overall net gluon antishadowing, although different regions of their differential distributions are depleted due to shadowing or EMC-effect corrections. The rapidity distributions of the decay leptons in tt¯ processes can be used to reduce the uncertainty on the Pb gluon density at high virtualities by up to 30% at the LHC (full heavy-ion programme), and by 70% per FCC-year. The cross sections for single-top production in electroweak processes are also computed, yielding about a factor of 30 smaller number of measurable top-quarks after cuts, per system and per year.fi
dc.language.isoeng
dc.publisherElsevier BV * North-Holland
dc.relation.ispartofseriesPhysics Letters B
dc.subject.otherp–Pb collisions
dc.subject.otherPb–Pb collisions
dc.subject.othertop-quark production
dc.titleTop-quark production in proton–nucleus and nucleus–nucleus collisions at LHC energies and beyond
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201508212726
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2015-08-21T09:15:22Z
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.format.pagerange64–72
dc.relation.issn0370-2693
dc.relation.numberinseries0
dc.relation.volume746
dc.type.versionpublishedVersion
dc.rights.copyright© 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
dc.rights.accesslevelopenAccessfi
dc.rights.urlhttp://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1016/j.physletb.2015.04.044
dc.type.okmA1


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© 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
Except where otherwise noted, this item's license is described as © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.