NNLO QCD corrections to event shapes at the LHC

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Alvarez, M 
Cantero, J 
Czakon, M 
Llorente, J 
Mitov, A 

jats:titleAjats:scbstract</jats:sc> </jats:title>jats:pIn this work we perform the first ever calculation of jet event shapes at hadron colliders at next-to-next-to leading order (NNLO) in QCD. The inclusion of higher order corrections removes the shape difference observed between data and next-to-leading order predictions. The theory uncertainty at NNLO is comparable to, or slightly larger than, existing measurements. Except for narrow kinematical ranges where all-order resummation becomes important, the NNLO predictions for the event shapes considered in the present work are reliable. As a prime application of the results derived in this work we provide a detailed investigation of the prospects for the precision determination of the strong coupling constant and its running through TeV scales from LHC data.</jats:p>

5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 51 Physical Sciences
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Journal of High Energy Physics
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Springer Science and Business Media LLC