Journal Article

PUBDB-2021-04069

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The anomalous case of axion EFTs and massive chiral gauge fields

Bonnefoy, Q. R. C.DESY* ; Di Luzio, L.DESY* ; Grojean, C.DESY* ; Paul, A.DESY* ; Rossia, A. N. (Corresponding author)DESY*

2021
SISSA [Trieste]

This record in other databases:        

Please use a persistent id in citations: doi:10.1007/JHEP07(2021)189  doi:10.3204/PUBDB-2021-04069

Report No.: DESY-20-194; HU-EP-20/32; arXiv:2011.10025

Abstract: We study axion effective field theories (EFTs), with a focus on axion couplings to massive chiral gauge fields. We investigate the EFT interactions that participate in processes with an axion and two gauge bosons, and we show that, when massive chiral gauge fields are present, such interactions do not entirely originate from the usual anomalous EFT terms. We illustrate this both at the EFT level and by matching to UV-complete theories. In order to assess the consistency of the Peccei-Quinn (PQ) anomaly matching, it is useful to introduce an auxiliary, non-dynamical gauge field associated to the PQ symmetry. When applied to the case of the Standard Model (SM) electroweak sector, our results imply that anomaly-based sum rules between EFT interactions are violated when chiral matter is integrated out, which constitutes a smoking gun of the latter. As an illustration, we study a UV-complete chiral extension of the SM, containing an axion arising from an extended Higgs sector and heavy fermionic matter that obtains most of its mass by coupling to the Higgs doublets. We assess the viability of such a SM extension through electroweak precision tests, bounds on Higgs rates and direct searches for heavy charged matter. At energies below the mass of the new chiral fermions, the model matches onto an EFT where the electroweak gauge symmetry is non-linearly realised.

Keyword(s): new physics ; effective field theory ; gauge field theory: chiral ; gauge boson: coupling ; axion: coupling ; coupling: anomaly ; symmetry: Peccei-Quinn ; fermion: matter ; fermion: heavy ; fermion: coupling ; electroweak interaction: precision measurement ; Anomalies in Field and String Theories ; Beyond Standard Model ; Effective Field Theories

Note: v2: Several clarifications added, results unchanged. Accepted for publication in JHEP

---

Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. EXC 2121 - Das Quantisierte Universum (390833306) (390833306)
3. AXIONRUSH - Rethinking Ultraviolet Scenarios for Hunting the AXION (840791) (840791)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2021

---

Database coverage:
; ; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; Nationallizenz ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---

---

Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Bonnefoy, Q. R. C. (Corresponding author)DESY* ; Di Luzio, L.DESY* ; Grojean, C.DESY* ; Paul, A.DESY* ; Rossia, A. N.DESY*
The Anomalous Case of Axion EFTs and Massive Chiral Gauge Fields
[10.3204/PUBDB-2020-04741]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

---