EWPD in the SMEFT to dimension eight
Abstract
We calculate the O(⟨H†H⟩²/Λ⁴) corrections to LEP electroweak precision data using the geometric formulation of the Standard Model Effective Field Theory (SMEFT). We report our results in simple-to-use interpolation tables that allow the interpretation of this data set to dimension eight for the first time. We demonstrate the impact of these previously unknown terms in the case of a general analysis in the SMEFT, and also in the cases of two distinct models matched to dimension eight. Neglecting such dimension-eight corrections to LEP observables introduces a theoretical error in SMEFT studies. We report some preliminary studies defining such a theory error, explicitly demonstrating the effect of previously unknown dimension-eight SMEFT corrections on LEP observables.
Additional Information
© 2021 The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. Received 24 February 2021; Revised 26 May 2021; Accepted 30 May 2021; Published 11 June 2021. We thank Chris Hays for insightful discussions. M.T. acknowledges support from the Villum Fund, project number 00010102. T.C. acknowledges funding from European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 890787. The work of A.M. is partially supported by the National Science Foundation under Grant No. Phy-1230860. A.H. is supported by the U.S. Department of Energy (DOE) under Award Number DE-SC0011632 and by the Walter Burke Institute for Theoretical Physics.Attached Files
Published - Corbett2021_Article_EWPDInTheSMEFTToDimensionEight.pdf
Accepted Version - 2102.02819.pdf
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Additional details
- Eprint ID
- 109543
- Resolver ID
- CaltechAUTHORS:20210623-140038262
- 00010102
- Villum Foundation
- 890787
- Marie Curie Fellowship
- PHY-1230860
- NSF
- DE-SC0011632
- Department of Energy (DOE)
- Walter Burke Institute for Theoretical Physics, Caltech
- Created
-
2021-06-23Created from EPrint's datestamp field
- Updated
-
2021-06-23Created from EPrint's last_modified field
- Caltech groups
- Walter Burke Institute for Theoretical Physics