Exploring SMEFT Couplings Using the Forward-Backward Asymmetry in Neutral Current Drell-Yan Production at the LHC
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866929623124672512 |
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| author | Anataichuk, Andrii Moch, Sven-Olaf Abdolmaleki, Hamed Amoroso, Simone Britzger, Daniel Dattola, Filippo Fiaschi, Juri Giuli, Francesco Glazov, Alexander Hautmann, Francesco Luszczak, Agnieszka Monfared, Sara Taheri Olness, Fred Vazzoler, Federico Zenaiev, Oleksandr |
| author_facet | Anataichuk, Andrii Moch, Sven-Olaf Abdolmaleki, Hamed Amoroso, Simone Britzger, Daniel Dattola, Filippo Fiaschi, Juri Giuli, Francesco Glazov, Alexander Hautmann, Francesco Luszczak, Agnieszka Monfared, Sara Taheri Olness, Fred Vazzoler, Federico Zenaiev, Oleksandr |
| contents | 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 perform a sensitivity study and 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_19638 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Exploring SMEFT Couplings Using the Forward-Backward Asymmetry in Neutral Current Drell-Yan Production at the LHC Anataichuk, Andrii Moch, Sven-Olaf Abdolmaleki, Hamed Amoroso, Simone Britzger, Daniel Dattola, Filippo Fiaschi, Juri Giuli, Francesco Glazov, Alexander Hautmann, Francesco Luszczak, Agnieszka Monfared, Sara Taheri Olness, Fred Vazzoler, Federico Zenaiev, Oleksandr High Energy Physics - Phenomenology 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 perform a sensitivity study and 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. |
| title | Exploring SMEFT Couplings Using the Forward-Backward Asymmetry in Neutral Current Drell-Yan Production at the LHC |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2310.19638 |