Erratum to: The minimal axion minimal linear \(\sigma \) model

  • L. MerloEmail author
  • F. Pobbe
  • S. Rigolin
Open Access

1 Erratum to: Eur. Phys. J. C

In this Erratum we clarify that in contrast to the statements made in the article the bounds on the axion coupling to two W’s and to two Z’s obtained from mono-W and mono-Z searches at the LHC are the following:
$$\begin{aligned} |g_{aWW}|\lesssim 1.6\times 10^{-3}\text { GeV}^{-1},\quad |g_{aZZ}|\lesssim 8\times 10^{-4}\text { GeV}^{-1}\,. \end{aligned}$$
The corresponding limits in terms of \(f_a/c_i\) are given by:
$$\begin{aligned} \dfrac{f_a}{|c_{aWW}|}\gtrsim 0.7\text { GeV},\quad \dfrac{f_a}{|c_{aZZ}|}\gtrsim 1.4\text { GeV}\,. \end{aligned}$$
This change has interesting phenomenological effects as the scale \(f_s\simeq f_a\) can be as low as \(1\text { TeV}\): this ML\(\sigma \)M ALP can then be tested both at colliders and at flavour factories. Moreover, this model does not present any fine-tuning.

Finally, a corrected version of the article is also available on the arXiv (arXiv:1710.10500).

Copyright information

© The Author(s) 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Authors and Affiliations

  1. 1.Departamento de Física Teórica and Instituto de Física Teórica UAM/CSICUniversidad Autónoma de MadridMadridSpain
  2. 2.Dipartimento di Fisica e AstronomiaUniversità di Padova and INFNPaduaItaly

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