PoS - Proceedings of Science
Volume 390 - 40th International Conference on High Energy physics (ICHEP2020) - Parallel: Higgs Physics
Searching for Light Boson via the Yukawa Process at Lepton Colliders
T. Mondal,* E. Jin Chun
*corresponding author
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Pre-published on: December 14, 2020
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I will present the prospect of Yukawa production process of a light boson which can exist in an extended Higgs sector. A particularly interesting case is the light pseudoscalar in Type-X two Higgs doublet model which can explain the anomalous magnetic moment of muon at large $\tan\beta$. Considering ILC “Higgs factory” with center-of-mass energy of 250 GeV, we show that the available parameter space can be fully examined by the (tau) Yukawa process at 5$\sigma$ with an integrated luminosity of $2000 \rm{fb}^{−1}$. We also demonstrate the mass reconstruction of such a light particle which helps to minimize the background events considerably. This proceeding is based on ref [1].
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