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Accepted version

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2019-02-01

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cc-by-nc-nd (c) Gascón et.al ,2019
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/170966

Direct photon production at LHCb

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https://doi.org/10.1016/j.nuclphysa.2018.10.046

Abstract

At small Bjorken-x, the large gluon number density in the nucleon leads to gluon recombination competing with gluon splitting, which could result in saturation of the gluon PDF. This gluon saturation has yet to be conclusively observed. Direct photon production provides sensitivity to gluon densities in protons and nuclei, and the forward acceptance of LHCb detector allows for measurements of this process at low Bjorken-x, providing an ideal probe of saturation effects. Progress towards the measurement of forward direct photon production using the LHCb detector is presented.

Subject

Gluons, Gran Col·lisionador d'Hadrons, Ions

Subject (English)

Gluons, Large Hadron Collider (France and Switzerland), Ions

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Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

Citation

GASCÓN FORA, David, GRACIANI DÍAZ, Ricardo and LHCb Collaboration. Direct photon production at LHCb. Nuclear Physics A. 2019. Vol. 982, num. 251-254. ISSN 0375-9474. [consulted: 19 of August of 2026]. Available at: https://hdl.handle.net/2445/170966

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