Parton Distribution Functions and Benchmark Cross Sections at NNLO

By S. Alekhin, J. Blumlein, Sven-Olaf Moch. 2012

315 citations recorded by the source corpus.

We present a determination of parton distribution function s (ABM11) and the strong coupling constantαs at next-to-leading order and next-to-next-to-leading ord er (NNLO) in QCD based on world data for deep-inelastic scattering and fixed-target d ata for the Drell-Yan process. The analysis is performed in the fixed-flavor number scheme for n f = 3, 4, 5 and uses the MS -scheme for αs and the heavy-quark masses. At NNLO we obtain the valueαs(MZ) = 0.1134± 0.0011. The fit results are used to compute benchmark cross sections at hadron colliders to NNLO accuracy and to compare to data from the LHC.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/af929d13ccd583d336fe2cf55a1f182d674b2f92

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Nuclear and High Energy Physics

Citations in the corpus

A facility to search for hidden particles at the CERN SPS: the SHiP physics case (2015, methodology): “Results for such NNLO PDF sets have been obtained by ABM11 [973], ABM12 [995], CT10 [999], HERAPDF (v1.”
Les Houches 2013: Physics at TeV Colliders: Standard Model Working Group Report (2014, methodology): “In order to examine the impact of the choice of different PDF sets, the plots further include the ratios of the NLO QCD predictions derived with various other PDF sets [227, 235, 237, 290].”
Progress in the Determination of the Partonic Structure of the Proton (2013, methodology): “Further PDFs based on smaller data sets have been produced recently: by the GJR/JR group [32, 33], following the “dynamical” approach of Reference [16]; by the ABKM/ABM group [34, 35], using mostly DIS data, following the approach of References [20, 36, 37]; and by the HERAPDF group, which only uses”
HatHor for single top-quark production: Updated predictions and uncertainty estimates for single top-quark production in hadronic collisions (2014, methodology): “ABM11 on the other hand leads to significantly larger cross sections at high energies for the tchannel, while for the Wt production the cross section is suppressed at low energies compared -16420-8 to other PDFs.”
Measurement of the t-channel single-top-quarkproduction cross section and of the |Vtb| CKM matrixelement in pp collisions at √s = 8 TeV (2014, unknown): “5 NLO [44], ABM11 [45], CT10, CT10w [36], and NNPDF [37].”
Handbook of LHC Higgs Cross Sections: 3. Higgs Properties (2013, methodology): “A new NLO and NNLO set, ABM11, has been made available by the AB M group [212], and a benchmarking exercise performed.”
Parton distribution benchmarking with LHC data (2012, background): “J H E P 0 4 ( 2 0 1 3 ) 1 2 5 PDF set Reference α (0) s (NLO) αs range (NLO) α (0) s (NNLO) αs range (NNLO) ABM11 Nf = 5 [3] 0.”
The Structure of the Proton in the LHC Precision Era (2017, methodology): “In the ABM11 fit [486], the heavy quark masses mc,b were included in the MS scheme for the first time, in contrast to other PDF fits which adopt instead the pole mass scheme.”