English

$CP$ violating mode of the stoponium decay into $Zh$

High Energy Physics - Phenomenology 2018-08-01 v2

Abstract

We show that a novel decay mode ZhZh of the bound state of stop-anti-stop pair in the ground state 1S0(t~1t~1)^1S_0(\widetilde t_1\widetilde t_1^*) may have a significant branching ratio if the CPCP violating mixing appears in the stop sector, even after we apply the stringent constraint from the measurement of the electric dipole moment (EDM) of the electron. We show that the branching ratio can be as large as 10% in some parameter space that it may be detectable at the LHC.

Keywords

Cite

@article{arxiv.1804.06089,
  title  = {$CP$ violating mode of the stoponium decay into $Zh$},
  author = {Kingman Cheung and Wai-Yee Keung and Po-Yan Tseng},
  journal= {arXiv preprint arXiv:1804.06089},
  year   = {2018}
}

Comments

16 pages, 4 figures