Proton structure functions at NLO in the dipole picture with massive quarks

We predict heavy quark production cross sections in Deep Inelastic Scattering at high energy by applying the Color Glass Condensate effective theory. We demonstrate that when the calculation is performed consistently at next-to-leading order accuracy with massive quarks it becomes possible, for the...

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Bibliographic Details
Published in:arXiv.org 2023-06
Main Authors: Hänninen, Henri, Mäntysaari, Heikki, Paatelainen, Risto, Penttala, Jani
Format: Article
Language:English
Subjects:
Cross-sections
Dipoles
Evolution
Inelastic scattering
Mathematical analysis
Quarks
Online Access:Get full text
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Summary:We predict heavy quark production cross sections in Deep Inelastic Scattering at high energy by applying the Color Glass Condensate effective theory. We demonstrate that when the calculation is performed consistently at next-to-leading order accuracy with massive quarks it becomes possible, for the first time in the dipole picture with perturbatively calculated center-of-mass energy evolution, to simultaneously describe both light and heavy quark production data at small \(x_\mathrm{Bj}\). We furthermore show how the heavy quark cross section data provides additional strong constraints on the extracted non-perturbative initial condition for the small-\(x_\mathrm{Bj}\) evolution equations.
ISSN:2331-8422
DOI:10.48550/arxiv.2211.03504