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The physics of the θ-angle for composite extensions of the standard model
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. The Niels Bohr Institute, University of Copenhagen, Denmark.
2014 (English)In: The European Physical Journal Plus, ISSN 2190-5444, E-ISSN 2190-5444, Vol. 129, no 12Article in journal (Refereed) Published
Abstract [en]

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
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-161655DOI: 10.1140/epjp/i2014-14262-4ISI: 000353765600001Scopus ID: 2-s2.0-84919946349OAI: oai:DiVA.org:kth-161655DiVA: diva2:795642
Note

QC 20150317

Available from: 2015-03-17 Created: 2015-03-13 Last updated: 2017-12-04Bibliographically approved

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