On the positivity of MS parton distributions
Candido, A., Forte, S., Giani, T., & Hekhorn, F. (2024). On the positivity of MS parton distributions. European Physical Journal C, 84(3), Article 335. https://doi.org/10.1140/epjc/s10052-024-12681-1
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European Physical Journal CDate
2024Copyright
© The Author(s) 2024
We revisit our argument that shows that parton distribution functions (PDFs) in the MS scheme are nonnegative in the perturbative region, with the dual goals of clarifying its theoretical underpinnings and elucidating its domain of validity. We specifically discuss recent results proving that PDFs can turn negative at sufficiently low scale, we clarify quantitatively various aspects of our derivation of positivity in the perturbative region, and we provide an estimate for the scale above which PDF positivity holds.
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1434-6044Keywords
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https://converis.jyu.fi/converis/portal/detail/Publication/207840938
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Research Council of FinlandFunding program(s)
Academy Research Fellow, AoF; Centre of Excellence, AoFAdditional information about funding
T. G. is supported by NWO via an ENW-KLEIN-2 project. F. H. is supported by the Academy of Finland project 358090 and is funded as a part of the Center of Excellence in Quark Matter of the Academy of Finland, project 346326.License
Except where otherwise noted, this item's license is described as CC BY 4.0