Cargando…
Improved constraints on parton distributions using LHCb, ALICE and HERA heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxes
The impact of measurements of heavy-flavour production in deep inelastic ep scattering and in pp collisions on parton distribution functions is studied in a QCD analysis at next-to-leading order. Recent combined results of inclusive and heavy-flavour produc- tion cross sections in deep inelastic sca...
Autores principales: | , , , , , , , |
---|---|
Lenguaje: | eng |
Publicado: |
2019
|
Materias: | |
Acceso en línea: | https://dx.doi.org/10.1007/JHEP04(2020)118 http://cds.cern.ch/record/2704558 |
_version_ | 1780964698209910784 |
---|---|
author | Zenaiev, O. Garzelli, M.V. Lipka, K. Moch, S.O. Cooper-Sarkar, A. Olness, F. Geiser, A. Sigl, G. |
author_facet | Zenaiev, O. Garzelli, M.V. Lipka, K. Moch, S.O. Cooper-Sarkar, A. Olness, F. Geiser, A. Sigl, G. |
author_sort | Zenaiev, O. |
collection | CERN |
description | The impact of measurements of heavy-flavour production in deep inelastic ep scattering and in pp collisions on parton distribution functions is studied in a QCD analysis at next-to-leading order. Recent combined results of inclusive and heavy-flavour produc- tion cross sections in deep inelastic scattering at HERA are investigated together with heavy-flavour production measurements at the LHC. Differential cross sections of charm- and beauty-hadron production measured by the LHCb collaboration at the centre-of-mass energies of 5, 7 and 13 TeV as well as the recent measurements of the ALICE experiment at the centre-of-mass energies of 5 and 7 TeV are explored. These data impose additional constraints on the gluon and the sea-quark distributions at low partonic fractions x of the proton momentum, down to x ≈ 10$^{−6}$. The impact of the resulting parton distribution function in the predictions for the prompt atmospheric-neutrino fluxes is studied.[graphic not available: see fulltext] |
id | cern-2704558 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2019 |
record_format | invenio |
spelling | cern-27045582023-09-02T04:26:54Zdoi:10.1007/JHEP04(2020)118http://cds.cern.ch/record/2704558engZenaiev, O.Garzelli, M.V.Lipka, K.Moch, S.O.Cooper-Sarkar, A.Olness, F.Geiser, A.Sigl, G.Improved constraints on parton distributions using LHCb, ALICE and HERA heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxeshep-phParticle Physics - PhenomenologyThe impact of measurements of heavy-flavour production in deep inelastic ep scattering and in pp collisions on parton distribution functions is studied in a QCD analysis at next-to-leading order. Recent combined results of inclusive and heavy-flavour produc- tion cross sections in deep inelastic scattering at HERA are investigated together with heavy-flavour production measurements at the LHC. Differential cross sections of charm- and beauty-hadron production measured by the LHCb collaboration at the centre-of-mass energies of 5, 7 and 13 TeV as well as the recent measurements of the ALICE experiment at the centre-of-mass energies of 5 and 7 TeV are explored. These data impose additional constraints on the gluon and the sea-quark distributions at low partonic fractions x of the proton momentum, down to x ≈ 10$^{−6}$. The impact of the resulting parton distribution function in the predictions for the prompt atmospheric-neutrino fluxes is studied.[graphic not available: see fulltext]The impact of measurements of heavy-flavour production in deep inelastic $ep$ scattering and in $pp$ collisions on parton distribution functions is studied in a QCD analysis at next-to-leading order. Recent combined results of inclusive and heavy-flavour production cross sections in deep inelastic scattering at HERA are investigated together with heavy-flavour production measurements at the LHC. Differential cross sections of charm- and beauty-hadron production measured by the LHCb collaboration at the centre-of-mass energies of 5, 7 and 13 TeV as well as the recent measurements of the ALICE experiment at the centre-of-mass energies of 5 and 7 TeV are explored. These data impose additional constraints on the gluon and the sea-quark distributions at low partonic fractions $x$ of the proton momentum, down to $x\approx10^{-6}$. The impact of the resulting parton distribution function in the predictions for the prompt atmospheric-neutrino fluxes is studied.arXiv:1911.13164DESY-19-211DESY 19-211oai:cds.cern.ch:27045582019-11-29 |
spellingShingle | hep-ph Particle Physics - Phenomenology Zenaiev, O. Garzelli, M.V. Lipka, K. Moch, S.O. Cooper-Sarkar, A. Olness, F. Geiser, A. Sigl, G. Improved constraints on parton distributions using LHCb, ALICE and HERA heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxes |
title | Improved constraints on parton distributions using LHCb, ALICE and HERA heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxes |
title_full | Improved constraints on parton distributions using LHCb, ALICE and HERA heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxes |
title_fullStr | Improved constraints on parton distributions using LHCb, ALICE and HERA heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxes |
title_full_unstemmed | Improved constraints on parton distributions using LHCb, ALICE and HERA heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxes |
title_short | Improved constraints on parton distributions using LHCb, ALICE and HERA heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxes |
title_sort | improved constraints on parton distributions using lhcb, alice and hera heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxes |
topic | hep-ph Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1007/JHEP04(2020)118 http://cds.cern.ch/record/2704558 |
work_keys_str_mv | AT zenaievo improvedconstraintsonpartondistributionsusinglhcbaliceandheraheavyflavourmeasurementsandimplicationsforthepredictionsforpromptatmosphericneutrinofluxes AT garzellimv improvedconstraintsonpartondistributionsusinglhcbaliceandheraheavyflavourmeasurementsandimplicationsforthepredictionsforpromptatmosphericneutrinofluxes AT lipkak improvedconstraintsonpartondistributionsusinglhcbaliceandheraheavyflavourmeasurementsandimplicationsforthepredictionsforpromptatmosphericneutrinofluxes AT mochso improvedconstraintsonpartondistributionsusinglhcbaliceandheraheavyflavourmeasurementsandimplicationsforthepredictionsforpromptatmosphericneutrinofluxes AT coopersarkara improvedconstraintsonpartondistributionsusinglhcbaliceandheraheavyflavourmeasurementsandimplicationsforthepredictionsforpromptatmosphericneutrinofluxes AT olnessf improvedconstraintsonpartondistributionsusinglhcbaliceandheraheavyflavourmeasurementsandimplicationsforthepredictionsforpromptatmosphericneutrinofluxes AT geisera improvedconstraintsonpartondistributionsusinglhcbaliceandheraheavyflavourmeasurementsandimplicationsforthepredictionsforpromptatmosphericneutrinofluxes AT siglg improvedconstraintsonpartondistributionsusinglhcbaliceandheraheavyflavourmeasurementsandimplicationsforthepredictionsforpromptatmosphericneutrinofluxes |