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| Author | Breso-Pla, V.; Falkowski, A.; Gonzalez-Alonso, M. | ||||
| Title | A(FB) in the SMEFT: precision Z physics at the LHC | Type | Journal Article | ||
| Year | 2021 | Publication | Journal of High Energy Physics | Abbreviated Journal | J. High Energy Phys. |
| Volume | 08 | Issue | 8 | Pages | 021 - 27pp |
| Keywords | Beyond Standard Model; Effective Field Theories | ||||
| Abstract | We study the forward-backward asymmetry A(FB) in pp -> l(+)l(-) at the Z peak within the Standard Model Effective Field Theory (SMEFT). We find that this observable provides per mille level constraints on the vertex corrections of the Z boson to quarks, which close a flat direction in the electroweak precision SMEFT fit. Moreover, we show that current A(FB) data is precise enough so that its inclusion in the fit improves significantly LEP bounds even in simple New Physics setups. This demonstrates that the LHC can compete with and complement LEP when it comes to precision measurements of the Z boson properties. | ||||
| Address | [Breso-Pla, Victor; Gonzalez-Alonso, Martin] Univ Valencia, Dept Fis Teor, IFIC, CSIC, Apt Correus 22085, E-46071 Valencia, Spain, Email: vicbreso@ific.uv.es; | ||||
| Corporate Author | Thesis | ||||
| Publisher | Springer | Place of Publication | Editor | ||
| Language | English | Summary Language | Original Title | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1029-8479 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | WOS:000683833600002 | Approved | no | ||
Is ISI  |
yes | International Collaboration | yes | ||
| Call Number | IFIC @ pastor @ | Serial | 4935 | ||
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