TY - JOUR
AU - Abbas, G.
AU - Celis, A.
AU - Li, X. Q.
AU - Lu, J.
AU - Pich, A.
PY - 2015
DA - 2015//
TI - Flavour-changing top decays in the aligned two-Higgs-doublet model
T2 - J. High Energy Phys.
JO - Journal of High Energy Physics
SP - 005
EP - 26pp
VL - 06
IS - 6
PB - Springer
KW - Rare Decays
KW - Beyond Standard Model
KW - Heavy Quark Physics
AB - We perform a complete one-loop computation of the two-body flavour-changing top decays t --> ch and t --> cV (V = gamma, Z), within the aligned two-Higgs-doublet model. We evaluate the impact of the model parameters on the associated branching ratios, taking into account constraints from flavour data and measurements of the Higgs properties. Assuming that the 125 GeV Higgs corresponds to the lightest CP-even scalar of the CP-conserving aligned two-Higgs-doublet model, we find that the rates for such flavour-changing top decays lie below the expected sensitivity of the future high-luminosity phase of the LHC. Measurements of the Higgs signal strength in the di-photon channel are found to play an important role in limiting the size of the t --> ch decay rate when the charged scalar of the model is light.
SN - 1029-8479
UR - http://arxiv.org/abs/1503.06423
UR - https://doi.org/10.1007/JHEP06(2015)005
DO - 10.1007/JHEP06(2015)005
LA - English
N1 - WOS:000355745800001
ID - Abbas_etal2015
ER -