Higgs Boson Production at Hadron Colliders with Soft Gluon Effects: I. Backgrounds

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  • 2 November 1998
Abstract
We calculate the effects of the initial-state multiple soft-gluon emission on the kinematic distributions of photon and Z^0 boson pairs produced in hadron collisions. The Collins-Soper-Sterman formalism is extended to resum the large logarithmic terms due to soft-gluons. The resummed total rates, the invariant mass, transverse momentum, and rapidity distributions of the photon and Z^0 pairs, and the transverse momentum distributions of the individual vector bosons are presented and compared to the fixed order predictions in the whole kinematic range, for the CERN Large Hadron Collider energies and for the upgraded Fermilab Tevatron. Our conclusion is that the resummed predictions should be used when extracting the Higgs signal at the LHC.

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