Data di Pubblicazione:
2015
Citazione:
On the impact of lepton PDFs / V. Bertone, S. Carrazza, D. Pagani, M. Zaro. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2015:11(2015 Nov 27), pp. 194.1-194.33. [10.1007/JHEP11(2015)194]
Abstract:
In this paper we discuss the effect of the complete leading-order QED corrections to the DGLAP equations that govern the perturbative evolution of parton distribution functions (PDFs). This requires the extension of the purely QCD DGLAP evolution including a PDF for the photons and, consistently, also for the charged leptons e±, μ± and τ±. We present the implementation of the QED-corrected DGLAP evolution in the presence of photon and lepton PDFs in the APFEL program and, by means of different assumptions for the initial scale PDFs, we produce for the first time PDF sets containing charged lepton distributions. We also present phenomenological studies that aim to assess the impact of the presence of lepton PDFs in the proton for some relevant SM (and BSM) processes at the LHC at 13 TeV and the FCC-hh at 100 TeV. The impact of the photon PDF is also outlined for those processes.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
QCD Phenomenology
Elenco autori:
V. Bertone, S. Carrazza, D. Pagani, M. Zaro
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