Diphoton production in gluon fusion at small transverse momentum

We discuss the production of photon pairs in gluon–gluon scattering in the context of the position-space resummation formalism at small transverse momentum. We derive the remaining unknown coefficients that arise at O(αS), as well as the remaining O(αS2) coefficient that occurs in the Sudakov factor...

Full description

Saved in:
Bibliographic Details
Published inPhysics letters. B Vol. 558; no. 1-2; pp. 63 - 68
Main Authors Nadolsky, P.M., Schmidt, C.R.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 10.04.2003
Online AccessGet full text

Cover

More Information
Summary:We discuss the production of photon pairs in gluon–gluon scattering in the context of the position-space resummation formalism at small transverse momentum. We derive the remaining unknown coefficients that arise at O(αS), as well as the remaining O(αS2) coefficient that occurs in the Sudakov factor. We comment on the impact of these coefficients on the normalization and shape of the resummed transverse momentum distribution of photon pairs, which comprise an important background to Higgs boson production at the LHC.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(03)00218-1