Accessing the gluonic structure of light nuclei at a future electron-ion collider
Mäntysaari, H., & Schenke, B. (2020). Accessing the gluonic structure of light nuclei at a future electron-ion collider. Physical Review C, 101(1), Article 015203. https://doi.org/10.1103/PhysRevC.101.015203
Published inPhysical Review C
© 2020 the Author(s)
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. ...
PublisherAmerican Physical Society
Publication in research information system
MetadataShow full item record
Related funder(s)Academy of Finland; European Commission
Funding program(s)Postdoctoral Researcher, AoF
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about fundingB.P.S. is supported under DOE Contract No. DE-SC0012704. H.M. is supported by the Academy of Finland, project 314764, and by the European Research Council, Grant No. ERC-2015-CoG-681707. H.M. wishes to thank the Nuclear Theory Group at BNL for hospitality during the final stages of this work. This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231, CSC—IT Center for Science in Espoo, Finland, and the Finnish Grid and Cloud Infrastructure (persistent identifier urn:nbn:fi:research-infras-2016072533). ...
Showing items with similar title or keywords.
Guzey, Vadim (Institute of Physics, 2019)An Electron-Ion Collider (EIC) in USA is currently discussed as a next-generation facility for high-energy nuclear physics. The main goal of the EIC is to study fundamental questions of Quantum Chromodynamics, which include ...
Mäntysaari, Heikki; Roy, Kaushik; Salazar, Farid; Schenke, Björn (American Physical Society, 2021)We study coherent diffractive photon and vector meson production in electron-proton and electron-nucleus collisions within the Color Glass Condensate effective field theory. We show that electron-photon and electron-vector ...
The importance of kinematic twists and genuine saturation effects in dijet production at the Electron-Ion Collider Boussarie, Renaud; Mäntysaari, Heikki; Salazar, Farid; Schenke, Björn (Springer, 2021)We compute the differential yield for quark anti-quark dijet production in high-energy electron-proton and electron-nucleus collisions at small x as a function of the relative momentum P⊥ and momentum imbalance k⊥ of the ...
Multigluon Correlations and Evidence of Saturation from Dijet Measurements at an Electron-Ion Collider Mäntysaari, Heikki; Mueller, Niklas; Salazar, Farid; Schenke, Björn (American Physical Society, 2020)We study inclusive and diffractive dijet production in electron-proton and electron-nucleus collisions within the color glass condensate effective field theory. We compute dijet cross sections differentially in both mean ...
Aschenauer, E. C.; Fazio, S.; Lamont, M. A. C.; Paukkunen, Hannu; Zurita, P. (American Physical Society, 2017)The quantitative knowledge of heavy nuclei’s partonic structure is currently limited to rather large values of momentum fraction x—robust experimental constraints below x ∼ 10−2 at low resolution scale Q2 are particularly ...