The physics of the θ-angle for composite extensions of the standard model
2014 (English)In: The European Physical Journal Plus, ISSN 2190-5444, Vol. 129, no 12Article in journal (Refereed) Published
We analyse the θ-angle physics associated to extensions of the standard model of particle interactions featuring new strongly coupled sectors. We start by providing a pedagogical review of the θ-angle physics for Quantum Chromodynamics (QCD) including also the axion properties. We then move to analyse composite extensions of the standard model elucidating the interplay between the new θ-angle with the QCD one. We consider first QCD-like dynamics and then generalise it to consider several kinds of new strongly coupled gauge theories with fermions transforming according to different matter representations. Our analysis is of immediate use for different models of composite Higgs dynamics, composite dark matter and inflation.
Place, publisher, year, edition, pages
2014. Vol. 129, no 12
IdentifiersURN: urn:nbn:se:kth:diva-161655DOI: 10.1140/epjp/i2014-14262-4ISI: 000353765600001ScopusID: 2-s2.0-84919946349OAI: oai:DiVA.org:kth-161655DiVA: diva2:795642
QC 201503172015-03-172015-03-132015-06-12Bibliographically approved