Parton distribution functions at LO, NLO and NNLO with correlated uncertainties between orders
作者: P. BelovD. BritzgerS. CamardaA. M. Cooper-SarkarC. DiaconuJ. FeltesseA. GizhkoA. GlazovV. KolesnikovK. LohwasserA. LuszczakV. MyronenkoH. PirumovR. PlačakytėK. RabbertzV. RadescuA. SapronovA. SchöningS. ShushkevichW. SlominskiP. StarovoitovM. SuttonJ. TomaszewskaO. TurkotG. WattK. WichmannM. Lisovyi
作者单位: 1DESY
2Department of Physics, University of Oxford
3CPPM, IN2P3-CNRS, Univ. Mediterranee
4Joint Institute for Nuclear Research (JINR)
5T. Kosciuszko Cracow University of Technology
6Institut für Experimentelle Kernphysik
7Institute of Physics, Jagiellonian University
8Department of Physics and Astronomy, Sussex House, University of Sussex
9Faculty of Physics, Warsaw University of Technology
10Physikalisches Institut, Universität Heidelberg
11Institute for Particle Physics Phenomenology, Durham University
12Department of Physics, St. Petersburg State University
13CEA, DSM/Irfu, CE-Saclay
刊名: The European Physical Journal C, 2014, Vol.74 (10), pp.1-10
来源数据库: Springer Nature Journal
DOI: 10.1140/epjc/s10052-014-3039-4
英文摘要: Abstract(#br)Sets of parton distribution functions (PDFs) of the proton are reported for the leading (LO), next-to-leading (NLO) and next-to-next-to-leading-order (NNLO) QCD calculations. The parton distribution functions are determined with the HERAFitter program using the data from the HERA experiments and preserving correlations between uncertainties for the LO, NLO and NNLO PDF sets. The sets are used to study cross-section ratios and their uncertainties when calculated at different orders in QCD. A reduction of the overall theoretical uncertainty is observed if correlations between the PDF sets are taken into account for the ratio of $$WW$$ W W di-boson to $$Z$$ Z boson production cross sections at the LHC.
全文获取路径: Springer Nature  (合作)
影响因子:5.247 (2012)

  • orders 定货量
  • correlated 相关
  • distribution 分布
  • between 在中间