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Impact of ATLAS $V$ + jets data on PDF fits
Proceeding of the ATLAS talk given at the QCD20 conference, held in Montpellier (France), from the 27/10/2020 to the 31/10/2020
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| Lenguaje: | eng |
| Publicado: |
2020
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| Acceso en línea: | https://dx.doi.org/10.1016/j.nuclphysbps.2021.05.003 http://cds.cern.ch/record/2744705 |
| _version_ | 1780968641091600384 |
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| author | Giuli, Francesco |
| author_facet | Giuli, Francesco |
| author_sort | Giuli, Francesco |
| collection | CERN |
| description | Proceeding of the ATLAS talk given at the QCD20 conference, held in Montpellier (France), from the 27/10/2020 to the 31/10/2020 |
| id | cern-2744705 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2020 |
| record_format | invenio |
| spelling | cern-27447052021-09-09T02:32:40Zdoi:10.1016/j.nuclphysbps.2021.05.003http://cds.cern.ch/record/2744705engGiuli, FrancescoImpact of ATLAS $V$ + jets data on PDF fitsParticle Physics - PhenomenologyParticle Physics - ExperimentProceeding of the ATLAS talk given at the QCD20 conference, held in Montpellier (France), from the 27/10/2020 to the 31/10/2020This proceeding presents a new set of proton parton distribution functions, ATLASepWZVjet20, produced in an analysis at next-to-next-to-leading-order in QCD. The new datasets considered are the ATLAS measurements of W<sup loc="post">±</sup> and Z boson production in association with jets in pp collisions at <math altimg="si1.svg"><msqrt><mrow><mi>s</mi></mrow></msqrt><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>8</mn><mspace width="0.25em"/><mtext>TeV</mtext></math> at the LHC with integrated luminosities of 20.2 fb<sup loc="post">−1</sup> and 19.9 fb<sup loc="post">−1</sup> respectively. The analysis also considers the ATLAS measurements of differential W<sup loc="post">±</sup> and Z boson production at <math altimg="si2.svg"><msqrt><mrow><mi>s</mi></mrow></msqrt><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>7</mn><mspace width="0.25em"/><mtext>TeV</mtext></math> with an integrated luminosity of 4.6 fb<sup loc="post">−1</sup> and deep-inelastic scattering data from eThis proceeding presents a new set of proton parton distribution functions, ATLASepWZVjet20, produced in an analysis at next-to-next-to-leading-order in QCD. The new datasets considered are the ATLAS measurements of $W^{\pm}$ and $Z$ boson production in association with jets in $pp$ collisions at $\sqrt{s}$ = 8 TeV at the LHC with integrated luminosities of 20.2 fb$^{-1}$ and 19.9 fb$^{-1}$ respectively. The analysis also considers the ATLAS measurements of differential $W^{\pm}$ and $Z$ boson production at $\sqrt{s}$ = 7 TeV with an integrated luminosity of 4.6 fb$^{-1}$ and deep-inelastic scattering data from $e^{\pm}p$ collisions at the HERA accelerator. An improved determination of the sea-quark densities at high Bjorken $x$ is shown, while confirming a strange-quark density of similar size as the up-and down-sea quark densities in the range $x\sim$ 0.02 found by previous ATLAS analyses.arXiv:2011.08481ATL-PHYS-PROC-2020-108oai:cds.cern.ch:27447052020-11-16 |
| spellingShingle | Particle Physics - Phenomenology Particle Physics - Experiment Giuli, Francesco Impact of ATLAS $V$ + jets data on PDF fits |
| title | Impact of ATLAS $V$ + jets data on PDF fits |
| title_full | Impact of ATLAS $V$ + jets data on PDF fits |
| title_fullStr | Impact of ATLAS $V$ + jets data on PDF fits |
| title_full_unstemmed | Impact of ATLAS $V$ + jets data on PDF fits |
| title_short | Impact of ATLAS $V$ + jets data on PDF fits |
| title_sort | impact of atlas $v$ + jets data on pdf fits |
| topic | Particle Physics - Phenomenology Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/j.nuclphysbps.2021.05.003 http://cds.cern.ch/record/2744705 |
| work_keys_str_mv | AT giulifrancesco impactofatlasvjetsdataonpdffits |