Banerjee, U., Chakrabortty, J., Englert, C. , Naskar, W., Rahaman, S. U. and Spannowsky, M. (2024) EFT, decoupling, Higgs boson mixing, and higher dimensional operators. Physical Review D, 109(5), 055035. (doi: 10.1103/PhysRevD.109.055035)
![[img]](https://eprints.gla.ac.uk/style/images/fileicons/text.png) |
Text
320914.pdf - Published Version Available under License Creative Commons Attribution. 904kB |
Abstract
The effective field theory (EFT) framework is a precise approximation procedure when the inherent assumptions of a large-scale separation between the Standard Model (SM) and new interactions alongside perturbativity are realized. Constraints from available data might not automatically guarantee these circumstances when contrasted with UV scenarios that the EFT analysis wishes to inform. From an EFT perspective, achieving sufficient precision in navigating the alignment or decoupling limits beyond the SM scenarios can necessitate moving beyond the SM’s leading, dimension six EFT deformation. Using the example of Higgs boson mixing, we demonstrated the importance of higher-dimensional terms in the EFT expansion. We analyze the relevance of virtual EFT corrections and dimension eight contributions for well-determined electroweak precision observables. We find that when moving away from the decoupling limit, the relevance of additional terms in the EFT expansion quickly becomes relevant. This demonstrates the necessity to move beyond dimension six interactions for any scenario that contains Higgs boson mixing.
| Item Type: | Articles |
|---|---|
| Additional Information: | C.E. is supported by the STFC under grant ST/T000945/1, by the Leverhulme Trust under grant RPG-2021-031, and the IPPP Associateship Scheme. M.S. is supported by the STFC under grant ST/P001246/1. W.N. is funded by a University of Glasgow College of Science and Engineering Scholarship. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Naskar, Mr Wrishik and Englert, Professor Christoph |
| Authors: | Banerjee, U., Chakrabortty, J., Englert, C., Naskar, W., Rahaman, S. U., and Spannowsky, M. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Physical Review D |
| Publisher: | American Physical Society |
| ISSN: | 2470-0010 |
| ISSN (Online): | 2470-0029 |
| Published Online: | 20 March 2024 |
| Copyright Holders: | Copyright © 2024 American Physical Society |
| First Published: | First published in Physical Review D 109(5):055035 |
| Publisher Policy: | Reproduced under a Creative Commons license |
University Staff: Request a correction | Enlighten Editors: Update this record
Funder and Project Information
Funder and Project Information