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Title: Triphoton production at hadron colliders

We present next-to-leading order predictions for the production of triphoton final states at the LHC and the Tevatron. Our results include the effect of photon fragmentation for the first time and we are able to quantify the impact of different isolation prescriptions. We find that calculations accounting for fragmentation effects at leading order, and those employing a smooth cone isolation where no fragmentation contribution is required, are in reasonable agreement with one another. However, larger differences in the predicted rates arise when higher order corrections to the fragmentation functions are included. In addition we present full analytic results for the $$\gamma\gamma\gamma$$ and $$\gamma\gamma+$$jet one-loop amplitudes. These amplitudes, which are particularly compact, may be useful to future higher-order calculations. Our results are available in the Monte Carlo code MCFM.
Authors:
 [1] ;  [2]
  1. Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
  2. The Niels Bohr Inst., Univ. of Copenhagen (Denmark)
Publication Date:
OSTI Identifier:
1155859
Report Number(s):
FERMILAB-PUB-14-033-T
Journal ID: ISSN 1550-7998; PRVDAQ; ArticleNumber: 113001
DOE Contract Number:
AC02-07CH11359
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review D; Journal Volume: 89; Journal Issue: 11
Research Org:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS