In light of the recent CMS analysis on lepton flavor violating (LFV) heavy Higgs searches and updated bounds on various search channels involving neutral and charged scalars, we provide the updated constraints on the Type-III two-Higgs-doublet model (2HDM) with a $\tau -\mu$ LFV. In doing so, we first extend the CMS analysis to cover the mass region below 200 GeV by recasting their data. After obtaining the bounds on the heavy Higgs production in the mass range between 130 and 450 GeV, we analyze the parameter space of the Type-III 2HDM with various scenarios of mass spectrum and heavy Higgs production strengths. We found that in most scenarios, searching for the heavy Higgs in the mass range lower than $2m_W$ is very important in constraining the parameter space of the Type-III 2HDM. Hence, we suggest for future analysis that the search window for the LFV heavy Higgs be extended to the lower mass region.

• Received 26 December 2019
• Accepted 1 March 2020

DOI:https://doi.org/10.1103/PhysRevD.101.055021

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Published by the American Physical Society