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Dielectron and Diphoton channels in 2HDM · Around

2008

Dielectron and Diphoton channels in 2HDM

Luo, Mingxing, Wang, Liucheng, Zhu, Guohuai

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It was observed recently by Randall and Wise that, any particle in the Standard Model cannot decay to $e^+e^-$ and $\gamma \gamma$ final states with comparably measurable branching ratios.

This is also true for most extensions of the Standard Model, with the Randall-Sundrum model as an outstanding exception.
In this paper, we show that two-Higgs-Doublet-Models (2HDM) yield another possible exception if certain parameters are properly chosen.
In addition, we have checked that this model survives the tests of low energy processes, including the anomalous magnetic moment and electric dipole moment of leptons, lepton-flavor-violating decays $\mu^- \to e^- \gamma$ and $e^- e^+ e^-$.

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Similar

L. Randall and R. Sundrum, Phys. Rev. Lett. 83, 3370 (1999) [ arXiv:9905221 [hep-ph] ]
1999
Cited alongside, same era.
E. Iltan, Phys. Rev. D64,013013(2001)[ arXiv:0101017[hep-ph] ]
Original
2001
Cited alongside, same era.
B.C. Regan, E.D. Commins, C.J. Schmidt and D. DeMille, Phys. Rev. Lett. 88,071805(2002)
2002
Cited alongside, same era.
L. Randall and Mark B. Wise,[ arXiv:0807.1746[hep-ph] ]
Original
Cited in the paper.

Then

E. Iltan, Mod. Phys. Lett. A19,2215-2226(2004)[ arXiv:0305199[hep-ph] ]
2004
Later among the works it cites.
Particle Data Group (C. Amsler et al.), Phys. Lett. B667,1(2008)
2008
Closest in time.
T. Aoyama, M. Hayakawa, T. Kinoshita and M. Nio, Phys. Rev. D77,053012(2008) [ arXiv:0712.2607 [hep-ph] ]
Original
2008
Closest in time.

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