@article{10272/16068, year = {2017}, month = {9}, url = {http://hdl.handle.net/10272/16068}, abstract = {We unify two widely different approaches to understanding the infrared behaviour of quantum chromodynamics (QCD), one essentially phenomenological, based on data, and the other computa- tional, realised via quantum field equations in the continuum theory. Using the latter, we explain and calculate a process-independent running-coupling for QCD, a new type of effective charge that is an analogue of the Gell-Mann–Low effective coupling in quantum electrodynamics. The result is almost identical to the process-dependent effective charge defined via the Bjorken sum rule, which provides one of the most basic constraints on our knowledge of nucleon spin structure. This re- veals the Bjorken sum to be a near direct means by which to gain empirical insight into QCD’s Gell-Mann–Low effective charge.}, publisher = {American Physical Society}, title = {Process-independent strong running coupling}, doi = {https://doi.org/10.1103/PhysRevD.96.054026}, author = {Binosi, Daniele and Mezrag, Cédric and Papavassiliou, J. and Roberts, Craig D. and Rodríguez Quintero, José}, }