Measurement of the differential -jet cross section and the ratio in collisions at
We present the first measurements of the differential cross section dσ/dpγΤ for the production of an isolated photon in association with at least two b-quark jets. The measurements consider photons with rapidities |yγ | < 1.0 and transverse momenta 30 < pγΤ < 200 GeV. The b-quark jets are required to have pjetΤ > 15 GeVand |γjet| < 1.5. The ratio of differential production cross sections for γ + 2 b-jets to γ +b-jet as a function of pγΤ is also presented. The results are based on the proton–antiproton collision data at √s = 1.96 TeV collected with the D0 detector at the Fermilab Tevatron Collider. As a result, the measured cross sections and their ratios are compared to the next-to-leading order perturbative QCD calculations as well as predictions based on the kΤ-factorization approach and those from the sherpa and pythia Monte Carlo event generators.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- D0 Collaboration
- Grant/Contract Number:
- AC02-98CH10886; AC02-07CH11359
- OSTI ID:
- 1214413
- Alternate ID(s):
- OSTI ID: 1165708; OSTI ID: 1226277
- Report Number(s):
- BNL-107162-2014-JA; FERMILAB-PUB-14-135-E; S0370269314006571; PII: S0370269314006571
- Journal Information:
- Physics Letters B, Journal Name: Physics Letters B Vol. 737 Journal Issue: C; ISSN 0370-2693
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- Netherlands
- Language:
- English
Web of Science
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