Searching for hidden signatures of physics beyond the Standard Model

A long-lived Higgs boson model produced in B meson decay is used to study the evolution of the LHCb trigger efficiency in a mass and lifetime region. Using the LHCb Simulation Software, the number of displaced vertex types has been estimated at generation and reconstructible level. The efficiency of the first stage of the LHCb trigger (HLT1) was directly computed from the reconstruction of Higgs samples and successfully compared to the prediction from the previous results. It is found that HLT1 efficiency is in general lower than 50% for lifetimes larger than 10 ps