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- Two Higgs doublets to explain the excesses $pp\rightarrow \gamma\gamma(750\ {\rm GeV})$ and $h \to \tau^\pm \mu^\mp$ doi link

Auteur(s):

(Article) Publié: Journal Of High Energy Physics, vol. 03 p.073 (2016)
Texte intégral en Openaccess : arxiv


Ref HAL: in2p3-01269676_v1
Ref Arxiv: 1512.08508
DOI: 10.1007/JHEP03(2016)073
WoS: WOS:000375305900001
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
32 Citations
Résumé:

The two Higgs doublet model emerges as a minimal scenario in which to address, at the same time, the $\gamma\gamma$ excess at 750 GeV and the lepton flavour violating decay into $\tau^\pm \mu^\mp $ of the 125 GeV Higgs boson. The price to pay is additional matter to enhance the $\gamma\gamma$ rate, and a peculiar pattern for the lepton Yukawa couplings. We add TeV scale vector-like fermions and find parameter space consistent with both excesses, as well as with Higgs and electroweak precision observables.



Commentaires: 15 pages, 1 figure; v2: discussion of tau-->mu gamma added, leading to an additional constraint. v3: references added, figure 1 recovered and figure 2 added