A1 Journal article (refereed)
Accessing the gluonic structure of light nuclei at a future electron-ion collider (2020)


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


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Publication details

All authors or editorsMäntysaari, Heikki; Schenke, Björn

Journal or seriesPhysical Review C

ISSN2469-9985

eISSN2469-9993

Publication year2020

Volume101

Issue number1

Article number015203

PublisherAmerican Physical Society

Publication countryUnited States

Publication languageEnglish

DOIhttps://doi.org/10.1103/PhysRevC.101.015203

Publication open accessOpenly available

Publication channel open accessPartially open access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/67813

Publication is parallel publishedhttps://arxiv.org/abs/1910.03297


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.


Keywordsparticle physicsnuclear physics


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Ministry reportingYes

VIRTA submission year2020

JUFO rating2


Last updated on 2024-12-10 at 05:45