Nonfactorizable QCD and Electroweak Corrections to the HadronicBoson Decay Rate
- 4 November 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 77 (19) , 3955-3958
- https://doi.org/10.1103/physrevlett.77.3955
Abstract
We present an analysis of two-loop mixed QCD and electroweak corrections to the decay of the boson into light quarks. We find that the naive factorization of QCD and electroweak corrections does not describe correctly the two-loop effects. The nonfactorizable corrections shift the width of the boson by approximately and increase the central value of the strong coupling constant determined at the CERN collider LEP by 0.001.
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