| Título |
Measurement of the differential γ+2b-jet cross section and the ratio σ(γ+2b-jets)/σ(γ+b-jet) in pp collisions at √s = 1.96 TeV |
| Tipo |
Revista |
| Sub-tipo |
JCR |
| Descripción |
Physics Letters B |
| Resumen |
We present the first measurements of the differential cross section View the MathML source 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 View the MathML source. The b -quark jets are required to have View the MathML source and |yjet|<1.5. The ratio of differential production cross sections for γ+2b -jets to γ+b-jet as a function of View the MathML source is also presented. The results are based on the proton–antiproton collision data at View the MathML source collected with the D0 detector at the Fermilab Tevatron Collider. 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 kT-factorization approach and those from the sherpa and pythia Monte Carlo event generators. |
| Observaciones |
doi:10.1016/j.physletb.2014.09.007 |
| Lugar |
Amsterdam, Holanda |
| País |
Reino Unido |
| No. de páginas |
357–365 |
| Vol. / Cap. |
737 |
| Inicio |
2014-10-07 |
| Fin |
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| ISBN/ISSN |
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