Extraction of the strong coupling with HERA and EIC inclusive data

2023/07/03 by Cerci, Salim, Demiroglu, Zuhal Seyma, Deshpande, Abhay +4 · 2 citations
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.2307.01183

Abstract

Sensitivity to the strong coupling α_S(M²_Z) is investigated using existing Deep Inelastic Scattering data from HERA in combination with projected future measurements from the Electron Ion Collider (EIC) in a next-to-next-to-leading order QCD analysis. A potentially world-leading level of precision is achievable when combining simulated inclusive neutral current EIC data with inclusive charged and neutral current measurements from HERA, with or without the addition of HERA inclusive jet and dijet data. The result can be obtained with substantially less than one year of projected EIC data at the lower end of the EIC centre-of-mass energy range. Some questions remain over the magnitude of uncertainties due to missing higher orders in the theoretical framework.

Cited by

• The impact of inclusive electron ion collider data on the strong coupling determination in a global PDF fit
• A reassessment of the role of high x data on the MSHT global PDF fit

Related

• Precision Tests of QCD Using Final State Jets and Particles
• Inclusive Measurement of the Strong Coupling at HERA
• Determination of the strong coupling constant α_s(M_Z) in next-to-next-to-leading order QCD using H1 jet cross section measurements
• Determination of the strong coupling and its running from measurements of inclusive jet production
• Jet Measurements and Determination of α_S at HERA