Journal Article

PUBDB-2025-01967

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Exploring SMEFT couplings using the forward–backward asymmetry in neutral current Drell–Yan production at the LHC

Abdolmaleki, H.Extern* ; Amoroso, S.DESY* ; Britzger, D. ; Dattola, F.DESY* ; Fiaschi, J. ; Giuli, F. ; Glazov, A.DESY* ; Hautmann, F. ; Luszczak, A. ; Taheri Monfared, S.DESY* ; Olness, F. ; Vazzoler, F.Extern*DESY* ; Zenaiev, O. (Corresponding author)Extern* ; Anataichuk, A. ; Moch, S.-O.Extern*

2024
Springer Heidelberg

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Please use a persistent id in citations: doi:10.1140/epjc/s10052-024-13480-4  doi:10.3204/PUBDB-2025-01967

Report No.: DESY-23-160; arXiv:2310.19638

Abstract: Neutral current Drell–Yan (DY) lepton-pair production is considered to study Z-boson quark couplings. Using the open-source fit platform xFitter, we investigate the impact of high-statistics measurements of the neutral current DY (NCDY) forward–backward asymmetry $A_{\textrm{FB}}$ near the weak boson mass scale in the present and forthcoming stages of the Large Hadron Collider (LHC). Besides recovering earlier results on the $A_{\textrm{FB}}$ sensitivity to parton distribution functions, we analyze the precision determination of Z-boson couplings to left-handed and right-handed u-quarks and d-quarks, and explore Beyond-Standard-Model contributions using the Standard Model Effective Field Theory (SMEFT) framework. We perform a sensitivity study and comment on the role of the $A_{\textrm{FB}}$ asymmetry for the electroweak SMEFT fit and precision Z-boson physics at the LHC and high-luminosity HL-LHC.

Keyword(s): new physics ; effective field theory ; CERN LHC Coll: upgrade ; p p: scattering ; parton: distribution function ; neutral current ; Drell-Yan process ; lepton: pair production ; lepton: angular distribution ; angular distribution: asymmetry ; Z0: coupling ; electroweak interaction: precision measurement

Note: cc-by, Eur. Phys. J. C 84 (2024) 1277. Published version

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Contributing Institute(s):

1. LHC/CMS Experiment (CMS)
2. LHC/ATLAS Experiment (ATLAS)
3. Uni Hamburg / Theorie (UNI/TH)
4. BELLE II Experiment (BELLE)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. 05H21GUCCA - Verbundprojekt 05H2021 (ErUM-FSP T03) - Run 3 von CMS am LHC: Präzisionsbestimmung von Partondichtefunktionen und Top-Quark-Masse (BMBF-05H21GUCCA) (BMBF-05H21GUCCA)

Experiment(s):

1. No specific instrument

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Database coverage:
; ; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Anataichuk, A.Extern* ; Moch, S.-O.Extern* ; Abdolmaleki, H.Extern* ; Amoroso, S.DESY* ; Britzger, D.Extern* ; Dattola, F.DESY* ; Fiaschi, J. ; Giuli, F. ; Glazov, A.DESY* ; Hautmann, F.Extern* ; Luszczak, A.Extern* ; Taheri Monfared, S.DESY* ; Olness, F.Extern* ; Vazzoler, F.DESY* ; Zenaiev, O. (Corresponding author)Extern*
Exploring SMEFT Couplings Using the Forward-Backward Asymmetry in Neutral Current Drell-Yan Production at the LHC
[10.3204/PUBDB-2023-06277]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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