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dc.contributor.authorHelenius, I.
dc.contributor.editord'Enterria, David
dc.contributor.editorMorsch, Andreas
dc.contributor.editorCrochet, Philippe
dc.date.accessioned2019-10-17T05:13:30Z
dc.date.available2019-10-17T05:13:30Z
dc.date.issued2019
dc.identifier.citationHelenius, I. (2019). Probing nuclear PDFs with dijets in ultra-peripheral Pb+Pb collisions. In D. d'Enterria, A. Morsch, & P. Crochet (Eds.), <i>Hard Probes 2018 : International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions</i> (Article 118). Sissa Medialab srl. POS Proceedings of Science, 345. <a href="https://doi.org/10.22323/1.345.0118" target="_blank">https://doi.org/10.22323/1.345.0118</a>
dc.identifier.otherCONVID_33246152
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/65917
dc.description.abstractIn this talk we apply the photoproduction framework recently implemented into the PYTHIA 8 Monte Carlo event generator to study the potential of photo-nuclear dijets in ultra-peripheral Pb+Pb collisions at the LHC to further constrain the nuclear PDFs. These events can be described as γA collisions where the relevant part of the flux of quasi-real photons from heavy-ions is obtained by using the equivalent photon approximation and cutting out impact-parameter values which would lead to hadronic interactions between the beam particles. In particular, we quantify the small-x reach with different jet kinematics and show how well the values of x derived from reconstructed jet momenta are correlated with the actual values of partonic momentum fractions probed in these measurements. Also the contributions from direct and resolved photons are separately presented. To demonstrate the potential, we compare the expected experimental uncertainties to the current nuclear-PDF errors and discuss other theoretical uncertainties including the uncertainty arising from poorly-constrained photon PDFs. We find that such a measurement would potentially provide a considerable reduction of the nuclear PDF uncertainties in a region 10−4 ≲ x ≲ 10−2.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherSissa Medialab srl
dc.relation.ispartofHard Probes 2018 : International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions
dc.relation.ispartofseriesPOS Proceedings of Science
dc.rightsCC BY-NC-ND 4.0
dc.titleProbing nuclear PDFs with dijets in ultra-peripheral Pb+Pb collisions
dc.typeconferenceObject
dc.identifier.urnURN:NBN:fi:jyu-201910174489
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/ConferencePaper
dc.description.reviewstatuspeerReviewed
dc.relation.issn1824-8039
dc.type.versionpublishedVersion
dc.rights.copyright© The Authors 2019
dc.rights.accesslevelopenAccessfi
dc.relation.conferenceInternational Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions
dc.relation.grantnumber308301
dc.subject.ysohiukkasfysiikka
dc.subject.ysoydinfysiikka
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p15576
jyx.subject.urihttp://www.yso.fi/onto/yso/p14759
dc.rights.urlhttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.relation.doi10.22323/1.345.0118
dc.relation.funderSuomen Akatemiafi
dc.relation.funderAcademy of Finlanden
jyx.fundingprogramAkatemiatutkijan tehtävä, SAfi
jyx.fundingprogramResearch post as Academy Research Fellow, AoFen
jyx.fundinginformationThe work has been supported by the Carl Zeiss Foundation and the Academy of Finland, Project 308301.


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