Accessing the gluonic structure of light nuclei at a future electron-ion collider

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dc.contributor.author Mäntysaari, Heikki
dc.contributor.author Schenke, Björn
dc.date.accessioned 2021-03-01T14:44:01Z
dc.date.available 2021-03-01T14:44:01Z
dc.date.issued 2020-01-13
dc.identifier.citation Mäntysaari , H & Schenke , B 2020 , ' Accessing the gluonic structure of light nuclei at a future electron-ion collider ' , Physical Review C , vol. 101 , no. 1 , 015203 . https://doi.org/10.1103/PhysRevC.101.015203
dc.identifier.other PURE: 135018335
dc.identifier.other PURE UUID: 9b045b25-0c03-488f-994b-b42610f9f3aa
dc.identifier.other WOS: 000506845300008
dc.identifier.other Scopus: 85078121995
dc.identifier.uri http://hdl.handle.net/10138/327287
dc.description.abstract We show how exclusive vector meson production off light ions can be used to probe the spatial distribution of small-x gluons in the deuteron and 3He wave functions. In particular, we demonstrate how short-range repulsive nucleon-nucleon interactions affect the predicted coherent J/Ψ production spectra. Fluctuations of the nucleon substructure are shown to have a significant effect on the incoherent cross section above |t|≳0.2GeV2. By explicitly performing the Jalilian-Marian–Iancu–McLerran–Weigert–Leonidov–Kovner (JIMWLK) evolution, we predict the x dependence of coherent and incoherent cross sections in the electron-ion collider energy range. In addition to the increase of the average size of the nucleus with decreasing x, both the growth of the nucleons and subnucleonic hot spots are visible in the cross sections. The decreasing length scale of color charge fluctuations with decreasing x is also present, but may not be observable for |t|<1GeV2, if subnucleonic spatial fluctuations are present. fi
dc.description.abstract We show how exclusive vector meson production off light ions can be used to probe the spatial distribution of small-x gluons in the deuteron and He-3 wave functions. In particular, we demonstrate how short-range repulsive nucleon-nucleon interactions affect the predicted coherent J/Psi production spectra. Fluctuations of the nucleon substructure are shown to have a significant effect on the incoherent cross section above vertical bar t vertical bar greater than or similar to 0.2 GeV2. By explicitly performing the Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner (JIMWLK) evolution, we predict the x dependence of coherent and incoherent cross sections in the electron-ion collider energy range. In addition to the increase of the average size of the nucleus with decreasing x, both the growth of the nucleons and subnucleonic hot spots are visible in the cross sections. The decreasing length scale of color charge fluctuations with decreasing x is also present, but may not be observable for vertical bar t vertical bar <1 GeV2, if subnucleonic spatial fluctuations are present. en
dc.format.extent 12
dc.language.iso eng
dc.relation.ispartof Physical Review C
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 114 Physical sciences
dc.subject P PLUS P
dc.subject COLLISIONS
dc.subject PROTON
dc.subject FLUCTUATIONS
dc.subject SATURATION
dc.subject EQUATION
dc.subject SCALE
dc.title Accessing the gluonic structure of light nuclei at a future electron-ion collider en
dc.type Article
dc.contributor.organization Helsinki Institute of Physics
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1103/PhysRevC.101.015203
dc.relation.issn 2469-9985
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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