TY  - JOUR
AU  - Han, X. F.
AU  - Wang, L.
AU  - Wu, L.
AU  - Yang, J. M.
AU  - Zhang, M. C.
PY  - 2016
DA  - 2016//
TI  - Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 309
EP  - 316
VL  - 756
PB  - Elsevier Science Bv
AB  - In this paper, we interpret the 750 GeV diphoton excess in the Zee-Babu extension of the two-Higgs-doublet model by introducing a top partner (T)/bottom partner (B). In the alignment limit, the 750 GeV resonance is identified as the heavy CP-even Higgs boson (H), which can be sizably produced via the QCD process pp -> T (T) over bar or pp -> B (B) over bar followed by the decay T -> Ht or B -> Hb. The diphoton decay rate of His greatly enhanced by the charged singlet scalars predicted in the Zee-Babu extension and the total width of H can be as large as 7 GeV. Under the current LHC constraints, we scan the parameter space and find that such an extension can account for the observed diphoton excess.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1601.00534
UR  - https://doi.org/10.1016/j.physletb.2016.03.035
DO  - 10.1016/j.physletb.2016.03.035
LA  - English
N1  - WOS:000373569200047
ID  - Han_etal2016
ER  -