Massive QCD at θ = π breaks CP spontaneously and admits domain walls whose dynamics and phases depend on the number of flavors and their masses. We discuss these issues within the Witten-Sakai-Sugimoto model of holographic QCD. Besides showing that this model reproduces all QCD expectations, we address two interesting claims in the literature. The first is about the possibility that the QCD domain-wall theory is fully captured by three-dimensional physics, only. The second regards the existence of quantum phases in certain Chern-Simons theories coupled to fundamental matter. Both claims are supported by the string theory construction.

QCD domain walls, Chern-Simons theories and holography / Argurio, Riccardo; Bertolini, Matteo; Bigazzi, Francesco; Cotrone, Aldo L.; Niro, Pierluigi. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2018:9(2018), pp. 1-20. [10.1007/JHEP09(2018)090]

QCD domain walls, Chern-Simons theories and holography

Bertolini, Matteo;
2018

Abstract

Massive QCD at θ = π breaks CP spontaneously and admits domain walls whose dynamics and phases depend on the number of flavors and their masses. We discuss these issues within the Witten-Sakai-Sugimoto model of holographic QCD. Besides showing that this model reproduces all QCD expectations, we address two interesting claims in the literature. The first is about the possibility that the QCD domain-wall theory is fully captured by three-dimensional physics, only. The second regards the existence of quantum phases in certain Chern-Simons theories coupled to fundamental matter. Both claims are supported by the string theory construction.
2018
9
1
20
090
https://doi.org/10.1007/JHEP09(2018)090
https://arxiv.org/abs/1806.08292
Argurio, Riccardo; Bertolini, Matteo; Bigazzi, Francesco; Cotrone, Aldo L.; Niro, Pierluigi
File in questo prodotto:
File Dimensione Formato  
Argurio2018_Article_QCDDomainWallsChern-SimonsTheo.pdf

accesso aperto

Tipologia: Versione Editoriale (PDF)
Licenza: Creative commons
Dimensione 475.65 kB
Formato Adobe PDF
475.65 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/87506
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 18
  • ???jsp.display-item.citation.isi??? 19
social impact