Heavy quark contributions to Higgs production via gluon fusion

摘要: Abstract A primary mechanism for Higgs production at hardon colliders is gluon fusion through quark loops. It generally believed that the cross section independent of mass a sufficiently heavy quark: measurement process would then bound number quarks. However, two-loop corrections to due internal exchange grow with quark. These are calculated, and found be( m /520GeV) 2 f (r) where r boson top mass-squared ratio f(r) varies from 0.10 1 over region interest.