Atkinson, O., Black, M., Englert, C. , Lenz, A. and Rusov, A. (2022) MUonE, muon g − 2 and electroweak precision constraints within 2HDMs. Physical Review D, 106(11), 115031. (doi: 10.1103/PhysRevD.106.115031)
![[img]](https://eprints.gla.ac.uk/style/images/fileicons/text.png) |
Text
286254.pdf - Published Version Available under License Creative Commons Attribution. 4MB |
Abstract
Two Higgs doublet models are attractive scenarios for physics beyond the Standard Model. In particular, lepton-specific manifestations remain contenders to explain the observed discrepancy between the anomalous magnetic moment of the muon a μ predicted within the Standard Model and recent observations at Fermilab and BNL. Dominant uncertainties that affect a μ have motivated the MUonE experiment to access the hadronic vacuum polarisation contribution that impacts a μ via elastic muon-electron scattering. In this work, we contrast the high precision that is achievable within the MUonE context with constraints from flavour physics, precision electroweak constraints and LHC searches as well as their extrapolations for a range of two Higgs doublet models with a softly broken Z 2 symmetry. We find that the sensitivity of MUonE does not extend beyond the parameter regions that are already excluded by other constraints. MUonE will therefore provide a detailed measurement of the hadronic vacuum polarisation contribution which then transparently informs a μ interpretations in 2HDMs without modifications of correlations from beyond the Standard Model interactions. In passing we extend earlier results of LHC and flavour projections to lepton-specific 2HDM (Types X and Y) scenarios, and comment on the possibility of modifying the value of the W -boson mass; we briefly discuss the implications for a strong first-order electroweak phase transition for these models.
| Item Type: | Articles |
|---|---|
| Additional Information: | O.A. is funded by a STFC studentship under grant ST/V506692/1. The work of M.B. is supported by Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through TRR 257 “Particle Physics Phenomenology after the Higgs Discovery”. C.E. is supported by the STFC under grant ST/T000945/1, the Leverhulme Trust under grant RPG-2021-031, and the Institute for Particle Physics Phenomenology Associateship Scheme. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Englert, Professor Christoph and Atkinson, Mr Oliver |
| Authors: | Atkinson, O., Black, M., Englert, C., Lenz, A., and Rusov, A. |
| 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: | 27 December 2022 |
| Copyright Holders: | Copyright © 2022 American Physical Society |
| First Published: | First published in Physical Review D 106(11): 115031 |
| Publisher Policy: | Reproduced under a Creative Commons License |
| Related URLs: |
University Staff: Request a correction | Enlighten Editors: Update this record
Funder and Project Information
Funder and Project Information