Strong-Coupling Constant with Flavor Thresholds at Five Loops in the MS-bar Scheme
B. A. Kniehl, A. V. Kotikov, A. I. Onishchenko, O. L. Veretin
Abstract
We present in analytic form the matching conditions for the strong-coupling constant alphas(nf)(mu) at the flavor thresholds to four loops in the modified minimal-subtraction scheme. Taking into account the present knowledge on the coefficient beta4 of the Callan-Symanzik beta function of quantum chromo-dynamics, we thus derive a five-loop formula for alphas(nf)(mu) together with appropriate relationships between the asymptotic scale parameters Lambda(nf) for different numbers of flavors nf.
Create a lesson
Related papers
Chiral soliton lattice in inhomogeneous magnetic fields
Tomas Brauner, Ramkumar Radhakrishnan
From the November Revolution toward the Millennium
Chris Quigg
An Axial UA(1)Lμ-Lτ: UV Completion and Experimental Searches
Rundong Fang, Jinhui Guo, Ming Li et al.
Hunting long-lived doubly charged scalars at the HL-LHC
Biplob Bhattacherjee, Rituparna Ghosh, Swagata Mukherjee et al.
Enigmatic properties of Ξ(1620) and Ξ(1690)
Taísa Veloso, K. P. Khemchandani, A. Martinez Torres et al.
Exploring Z/γ-mediated heavy FCNCs at the FCC-ee
Abhik Sarkar, Subhajit Kala, Amir Subba et al.