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Prompt photon pair production in association with top - anti-top pairs: An Important background to intermediate mass Higgs detection

Authors
  • Ballestrero, Alessandro
  • Maina, Ezio
Publication Date
Jan 01, 1991
Identifiers
DOI: 10.1016/0370-2693(91)91604-T
OAI: oai:inspirehep.net:317562
Source
INSPIRE-HEP
Keywords
License
Unknown
External links

Abstract

The reaction pp → t t ̄ γγ is studied for 80⩽ M γγ ⩽140 GeV, as a possible background to the detection of an intermedia te mass standard model Higgs in the rare ℓ νγγ final state. If the top is not too heavy the prompt photon production, integrated over a window of 6 GeV in M γγ around the Higgs mass, can be larger than the production of photon pairs from Higgs decay. Standard isolation cuts can effectively dispose of this background for m t ⩾150 GeV. For m t ∼100 GeV approximately the same nu mber of background and signal events pass the cuts.

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