PDF profiling broadens high-mass Drell-Yan SMEFT limits most for first-generation quark operators and far less for heavier flavours, both with current CMS data and at the HL-LHC.
Specialized minimal PDFs for optimized LHC calculations
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We present a methodology for the construction of parton distribution functions (PDFs) designed to provide an accurate representation of PDF uncertainties for specific processes or classes of processes with a minimal number of PDF error sets: specialized minimal PDF sets, or SM-PDFs. We construct these SM-PDFs in such a way that sets corresponding to different input processes can be combined without losing information, specifically on their correlations, and that they are robust upon smooth variations of the kinematic cuts. The proposed strategy never discards information, so that the SM-PDF sets can be enlarged by the addition of new processes, until the prior PDF set is eventually recovered for a large enough set of processes. We illustrate the method by producing SM-PDFs tailored to Higgs, top quark pair, and electroweak gauge boson physics, and determine that, when the PDF4LHC15 combined set is used as the prior, around 11, 4 and 11 Hessian eigenvectors respectively are enough to fully describe the corresponding processes.
fields
hep-ph 1years
2026 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
PDF effects in high-mass Drell-Yan SMEFT analyses across flavour space
PDF profiling broadens high-mass Drell-Yan SMEFT limits most for first-generation quark operators and far less for heavier flavours, both with current CMS data and at the HL-LHC.