HIGGS-PHOTON ASSOCIATED PRODUCTION AT HADRON COLLIDERS - ART. NO. 057301

We present cross sections for the reactions p (p) over bar-->H gamma a nd pp-->H gamma arising from the subprocess q (q) over bar-->H gamma. The calculation includes the complete one-loop contribution from all l ight quarks as well as the tree contributions from the light quarks an d c and b quarks. These are the main sources of Higgs-photon associate d production at hadron colliders. At Fermilab Tevatron energies, the c ross section is typically between 0.1 fb and 1.0 fb for 80 GeV less th an or equal to m(H)less than or equal to 160 GeV, while at CERN LHC en ergies it exceeds about 2.0 fb over the same range of m(H). While subs tantial, these cross sections are not large enough to produce a signal which is discernable above the backgrounds from q (q) over bar-->b (b ) over bar gamma and, gg-->b (b) over bar gamma. [S0556-2821(98)06317- 6].