Brivio2017_Article_ALPsEffectiveFieldTheoryAndCol.pdf (4.93 MB)
ALPs effective field theory and collider signatures
Version 2 2023-06-12, 08:56
Version 1 2023-06-09, 16:23
journal contribution
posted on 2023-06-12, 08:56 authored by I Brivio, M B Gavela, L Merlo, Ken Mimasu, J M No, R del Rey, Veronica SanzWe study the leading effective interactions between the Standard Model fields and a generic singlet CP-odd (pseudo-) Goldstone boson. Two possible frameworks for electroweak symmetry breaking are considered: linear and non-linear. For the latter case, the basis of leading effective operators is determined and compared with that for the linear expansion. Associated phenomenological signals at colliders are explored for both scenarios, deriving new bounds and analyzing future prospects, including LHC and High Luminosity LHC sensitivities. Mono-Z, mono-W, W-photon plus missing energy and on-shell top final states are most promising signals expected in both frameworks. In addition, non-standard Higgs decays and mono-Higgs signatures are especially prominent and expected to be dominant in non-linear realisations.
History
Publication status
- Published
File Version
- Published version
Journal
The European Physical Journal C: Particles and FieldsISSN
1434-6044Publisher
Springer VerlagExternal DOI
Issue
572Volume
77Page range
1-40Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Theoretical Particle Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2019-01-08First Open Access (FOA) Date
2019-01-08First Compliant Deposit (FCD) Date
2019-01-03Usage metrics
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