Projects per year
Abstract
We present NNPDF3.0, the first set of parton distribution functions (PDFs) determined with a methodology validated by a closure test. NNPDF3.0 uses a global dataset including HERA-II deep-inelastic inclusive cross-sections, the combined HERA charm data, jet production from ATLAS and CMS, vector boson rapidity and transverse momentum distributions from ATLAS, CMS and LHCb, W +c data from CMS and top quark pair production total cross sections from ATLAS and CMS. Results are based on LO, NLO and NNLO QCD theory and also include electroweak corrections. To validate our methodology, we show that PDFs determined from pseudo-data generated from a known underlying law correctly reproduce the statistical distributions expected on the basis of the assumed experimental uncertainties. This closure test ensures that our methodological uncertainties are negligible in comparison to the generic theoretical and experimental uncertainties of PDF determination. This enables us to determine with confidence PDFs at different perturbative orders and using a variety of experimental datasets ranging from HERA-only up to a global set including the latest LHC results, all using precisely the same validated methodology. We explore some of the phenomenological implications of our results for the upcoming 13 TeV Run of the LHC, in particular for Higgs production cross-sections.
Original language | English |
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Article number | 40 |
Number of pages | 145 |
Journal | Journal of High Energy Physics |
Volume | 2015 |
Issue number | 4 |
DOIs | |
Publication status | Published - 8 Apr 2015 |
Keywords
- QCD Phenomenology
- DEEP-INELASTIC-SCATTERING
- DEUTERON STRUCTURE FUNCTIONS
- PROTON STRUCTURE-FUNCTION
- PRODUCTION CROSS-SECTION
- UNCERTAINTIES NNPDF COLLABORATION
- D-ASTERISK(+/-) MESON PRODUCTION
- HIGH STATISTICS MEASUREMENT
- QED RADIATIVE-CORRECTIONS
- W LEPTON ASYMMETRY
- CHARM-QUARK MASS
Fingerprint
Dive into the research topics of 'Parton distributions for the LHC run II'. Together they form a unique fingerprint.Projects
- 3 Finished
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High-performance computing at the high-energy frontier: results for the LHC
1/01/15 → 31/12/19
Project: Research
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Particle Theory at the Higgs Centre
Ball, R., Berera, A., Boyle, P., Callison-Burch, C., Del Debbio, L., Gardi, E., Kennedy, A., O'Connell, D., Zwicky, R., Berera, A., Boyle, P., Buckley, A., Del Debbio, L., Gardi, E., Horsley, R., Kennedy, A., Kenway, R., O'Connell, D., Smillie, J. & Zwicky, R.
1/10/14 → 30/09/18
Project: Research
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Particle Theory at the Tait Institute
Ball, R., Berera, A., Boyle, P., Del Debbio, L., Figueroa-O'Farrill, J., Gardi, E., Horsley, R., Kennedy, A., Kenway, R., Pendleton, B. & Simon Soler, J.
1/10/11 → 30/09/15
Project: Research
Profiles
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Luigi Del Debbio
- School of Physics and Astronomy - Personal Chair in Theoretical High Energy Physics
Person: Academic: Research Active