Proceedings

PUBDB-2021-05687

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Longitudinal Z-boson polarization and the Higgs boson production cross-section

Amoroso, S.DESY* ; xFitter Collaboration (Collaboration Author)

2021

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Please use a persistent id in citations: doi:10.3204/PUBDB-2021-05687

Abstract: We present a study of the LHC (and HL-LHC) potential towards a precise determination of the gluon parton distribution function of the proton at intermediate Bjorken-$x$ from measurements of Drell-Yan production. To this extent, we exploit a clean and theoretically well predicted observable: the Drell-Yan lepton angular coefficient $A_0$, associated with the longitudinal polarization of the Z boson. Through a detailed numerical analysis using the open-source xFitter platform, we illustrate how this observable can provide significant sensitivity over current determinations of the gluon PDF, and a reduction in the PDF uncertainty on the Higgs boson production cross-section by a factor of over 50%.

Keyword(s): Z0: polarization ; Higgs particle: production ; parton: distribution function ; Z0: longitudinal ; CERN LHC Coll: upgrade ; p: distribution function ; polarization: longitudinal ; gluon ; Drell-Yan process ; lepton ; sensitivity

Note: Contribution to the XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2021), April 12-16, 2021. Submission to SciPost Physics Proceedings

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Contributing Institute(s):

1. LHC/CMS Experiment (CMS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. LHC: Other
2. No specific instrument

Appears in the scientific report 2021

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Database coverage:
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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Conference Presentation Amoroso, S. (Corresponding author)DESY*
Longitudinally polarised Z-bosons and the Higgs cross-section at the LHC
2021XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS2021, Stony Brook, NY (ONLINE)Stony Brook, NY (ONLINE), virutal world, 12 Apr 2021 - 16 Apr 20212021-04-122021-04-16     Files  Fulltext BibTeX | EndNote: XML, Text | RIS

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