First results on the running coupling in QCD with two massless flavours

We report on the non-perturbative computation of the running coupling of two-flavour QCD in the Schrödinger functional scheme. The corresponding Λ-parameter, which describes the coupling strength at high energy, is related to a low energy scale which still remains to be connected to a hadronic “exp...

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Main Authors:	Bode, Achim (Author) , Frezzotti, Roberto (Author) , Gehrmann, Bernd (Author) , Hasenbusch, Martin (Author) , Heitger, Jochen (Author) , Jansen, Karl (Author) , Kurth, Stefan (Author) , Rolf, Juri (Author) , Simma, Hubert (Author) , Sint, Stefan (Author) , Sommer, Rainer (Author) , Weisz, Peter (Author) , Wittig, Hartmut (Author) , Wolff, Ulli (Author)
Format:	Article (Journal)
Language:	English
Published:	9 August 2001
In:	Physics letters Year: 2001, Volume: 515, Issue: 1/2, Pages: 49-56
ISSN:	1873-2445
DOI:	10.1016/S0370-2693(01)00857-7
Online Access:	Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/S0370-2693(01)00857-7 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0370269301008577
Author Notes:	Achim Bode, Roberto Frezzotti, Bernd Gehrmann, Martin Hasenbusch, Jochen Heitger, Karl Jansen, Stefan Kurth, Juri Rolf, Hubert Simma, Stefan Sint, Rainer Sommer, Peter Weisz, Hartmut Wittig, Ulli Wolff