Power corrections to event shapes using Eikonal dressed gluon exponentiation

• Published in: The journal of high energy physics Vol. 2021; no. 3; pp. 1 - 20
• Main Authors: Agarwal, Neelima, Mukhopadhyay, Ayan, Pal, Sourav, Tripathi, Anurag
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-03-2021; Springer Nature B.V; SpringerOpen
• Subjects: Approximation; Classical and Quantum Gravitation; Elementary Particles; Gluons; High energy physics; NLO Computations; Physics; Physics and Astronomy; Positron annihilation; QCD Phenomenology; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Regular Article - Theoretical Physics; Relativity Theory; String Theory; NLO Computations; QCD Phenomenology
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP03(2021)155

A
bstract
Event shapes are classical tools for the determination of the strong coupling and for the study of hadronization effects in electron-positron annihilation. In the context of analytical studies, hadronization corrections take the form of power-suppressed contributions to the cross section, which can be extracted from the perturbative ambiguity of Borel-resummed distributions. We propose a simplified version of the well-established method of Dressed Gluon Exponentiation (DGE), which we call Eikonal DGE (EDGE), which determines all dominant power corrections to event shapes by means of strikingly elementary calculations. We believe our method can be generalized to hadronic event shapes and jet shapes of relevance for LHC physics.