https://doi.org/10.1051/epjconf/202227403001
Oriented Event Shapes for massive Quarks
1 Departamento de Física Teórica, Universidad Autónoma de Madrid, E-28049, Madrid, Spain
2 Instituto de Física Teórica UAM-CSIC, E-28049 Madrid, Spain
3 Departamento de Física Fundamental e IUFFyM, Universidad de Salamanca, E-37008 Salamanca, Spain
* e-mail: alejandro.bris@uam.es
** e-mail: ngonzalez@usal.es
*** e-mail: vmateu@usal.es
Published online: 22 December 2022
In this work we present the computation of so-called oriented eventshape distributions for massive quarks up to 𝒪(αs), along with the total oriented cross section in which one does not look at the geometric properties of the momentum distribution for particles in the final state. We consider the vector and axial-vector currents, and for the former, we find a non-vanishing result at 𝒪(α0s) that translates into a significant enhancement as compared to the massless approximation. Our results are an important ingredient for analyses that aim to determine the strong coupling with high accuracy.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
