Preprint

PUBDB-2023-06277

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

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*

2023

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Please use a persistent id in citations: doi:10.3204/PUBDB-2023-06277

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

Abstract: Neutral current Drell-Yan (DY) lepton-pair production is considered in the framework of the Standard Model Effective Field Theory (SMEFT). Using the open-source fit platform xFitter, we investigate the impact of high-statistics measurements of the neutral current DY (NCDY) forward-backward asymmetry $A_{\rm{FB}}$ near the weak boson mass scale in the present and forthcoming stages of the Large Hadron Collider (LHC). Besides recovering earlier results on the $A_{\rm{FB}}$ 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 SMEFT framework. We comment on the role of the $A_{\rm{FB}}$ asymmetry for the electroweak SMEFT fit and precision $Z$-boson physics at the LHC and high-luminosity HL-LHC.

Keyword(s): angular distribution, asymmetry ; parton, distribution function ; vector boson, mass ; mass, scale ; CERN LHC Coll, upgrade ; neutral current ; Drell-Yan process ; new physics ; sensitivity ; electroweak interaction ; left-handed ; right-handed ; effective field theory

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Contributing Institute(s):

1. Uni Hamburg / Theorie (UNI/TH)

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

Appears in the scientific report 2023

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Database coverage:
; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article 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*
Exploring SMEFT couplings using the forward–backward asymmetry in neutral current Drell–Yan production at the LHC
The European physical journal / C 84(12), 1277 (2024) [10.1140/epjc/s10052-024-13480-4]2024     Files  Fulltext Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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