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SUMMARY:Recent four- and five-loop results in QCD - Andreas Vogt\, Liverpo
 ol University
DTSTART:20180202T160000Z
DTEND:20180202T170000Z
UID:TALK98878@talks.cam.ac.uk
CONTACT:Francesca Chadha-Day
DESCRIPTION:We report on recent calculations in perturbative Quantum Chrom
 odynamics (QCD) and its generalization to Yang-Mills theories with fermion
 s. We summarize the present status of four-loop calculations of the splitt
 ing functions for the scale dependence (evolution) of the quark and gluon 
 distributions of hadrons.\nFive-loop results are presented for the beta fu
 nction\, i.e.\, the running of the coupling constant\, and for hadronic de
 cays of the Higgs boson.
LOCATION:Ryle Seminar Room no. 930\, Rutherford Building\, Cavendish Labor
 atory
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