TY  - JOUR
AU  - Cheng, L.
AU  - Eberhardt, O.
AU  - Murphy, C. W.
PY  - 2019
DA  - 2019//
TI  - Novel theoretical constraints for color-octet scalar models
T2  - Chin. Phys. C
JO  - Chinese Physics C
SP  - 093101
EP  - 11pp
VL  - 43
IS  - 9
PB  - Iop Publishing Ltd
KW  - beyond the Standard Model
KW  - extension of Higgs sector
KW  - EW symmetry breaking
AB  - We study the theoretical constraints on a model whose scalar sector contains one color octet and one or two color singlet SU(2)(L) doublets. To ensure unitarity of the theory, we constrain the parameters of the scalar potential for the first time at the next-to-leading order in perturbation theory. Moreover, we derive new conditions guaranteeing the stability of the potential. We employ the HEPfit package to extract viable parameter regions at the electroweak scale and test the stability of the renormalization group evolution up to the multi-TeV region. Furthermore, we set upper limits on the scalar mass splittings. All results are given for both cases with and without a second scalar color singlet.
SN  - 1674-1137
UR  - https://arxiv.org/abs/1808.05824
UR  - https://doi.org/10.1088/1674-1137/43/9/093101
DO  - 10.1088/1674-1137/43/9/093101
LA  - English
N1  - WOS:000482015900001
ID  - Cheng_etal2019
ER  -