Exploring SMEFT couplings using the forward–backward asymmetry in neutral current Drell–Yan production at the LHC
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 $$A_{\textrm{FB}}$$ A FB ne...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13480-4 |
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| author | the xFitter Developers’ team |
| author_facet | the xFitter Developers’ team |
| author_sort | the xFitter Developers’ team |
| collection | DOAJ |
| description | 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 $$A_{\textrm{FB}}$$ A 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 $$A_{\textrm{FB}}$$ A 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 $$A_{\textrm{FB}}$$ A FB asymmetry for the electroweak SMEFT fit and precision Z-boson physics at the LHC and high-luminosity HL-LHC. |
| format | Article |
| id | doaj-art-5c600befeb0549a0a1c6e59986f6ca0e |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-5c600befeb0549a0a1c6e59986f6ca0e2025-02-02T12:38:56ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-12-01841212210.1140/epjc/s10052-024-13480-4Exploring SMEFT couplings using the forward–backward asymmetry in neutral current Drell–Yan production at the LHCthe xFitter Developers’ team0Hamburg UniversityAbstract 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 $$A_{\textrm{FB}}$$ A 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 $$A_{\textrm{FB}}$$ A 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 $$A_{\textrm{FB}}$$ A FB asymmetry for the electroweak SMEFT fit and precision Z-boson physics at the LHC and high-luminosity HL-LHC.https://doi.org/10.1140/epjc/s10052-024-13480-4 |
| spellingShingle | the xFitter Developers’ team Exploring SMEFT couplings using the forward–backward asymmetry in neutral current Drell–Yan production at the LHC European Physical Journal C: Particles and Fields |
| title | Exploring SMEFT couplings using the forward–backward asymmetry in neutral current Drell–Yan production at the LHC |
| title_full | Exploring SMEFT couplings using the forward–backward asymmetry in neutral current Drell–Yan production at the LHC |
| title_fullStr | Exploring SMEFT couplings using the forward–backward asymmetry in neutral current Drell–Yan production at the LHC |
| title_full_unstemmed | Exploring SMEFT couplings using the forward–backward asymmetry in neutral current Drell–Yan production at the LHC |
| title_short | Exploring SMEFT couplings using the forward–backward asymmetry in neutral current Drell–Yan production at the LHC |
| title_sort | exploring smeft couplings using the forward backward asymmetry in neutral current drell yan production at the lhc |
| url | https://doi.org/10.1140/epjc/s10052-024-13480-4 |
| work_keys_str_mv | AT thexfitterdevelopersteam exploringsmeftcouplingsusingtheforwardbackwardasymmetryinneutralcurrentdrellyanproductionatthelhc |