https://doi.org/10.1051/epjconf/201612900038
Theta Dependence in Yang-Mills from Holography
1 INFN, Sezione di Firenze;, Via G. Sansone 1, I-50019 Sesto Fiorentino (Firenze), Italy
2 Dipartimento di Fisica e Astronomia, Università di Firenze;, Via G. Sansone 1, I-50019 Sesto Fiorentino (Firenze), Italy
3 Department of Mathematics, University of Surrey, Guildford, GU2 7XH, UK
* e-mail: bigazzi@fi.infn.it
Published online: 25 November 2016
In this contribution we review how holographic tools can be used to study the dependence on the CP-breaking θ parameter of various observables in a large Nc Yang-Mills model. Relevant examples are the ground-state energy density, the string tension, the glueball mass spectrum and the critical temperature for deconfinement. These observables have been also studied, in the small θ regime and up to very few powers of θ2, in pure Yang-Mills on the Lattice. The holographic results qualitatively agree with available Lattice data and, being exact in θ, provide benchmarks for higher order corrections.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
