Journal
PHYSICAL REVIEW D
Volume 103, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.103.055023
Keywords
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Funding
- National Natural Science Foundation of China [12075326]
- Guangdong Basic and Applied Basic Research Foundation [2019A1515012216]
- Original innovation project of Chinese Academy of Sciences (CAS) [ZDBS-LY-SLH009]
- CAS Center for Excellence in Particle Physics (CCEPP)
- SYSU startup funding
- National Science Foundation of China (NSFC) [12005254, 11805001, 11935001]
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This article discusses the prospect of using the Muonium-to-Antimuonium Conversion Experiment (MACE) to probe models with a triplet Higgs boson, particularly its variants. The study shows that MACE could explore a parameter space for the doubly charged Higgs boson that is beyond the reach of other experiments.
The spontaneous muonium-to-antimuonium conversion is one of the interesting charged lepton flavor violation processes. The Muonium-to-Antimuonium Conversion Experiment (MACE) is the next generation experiment to probe such a phenomenon. In models with a triplet Higgs boson to generate neutrino masses, such as the type-II seesaw and its variant, this process can be induced by the doubly charged Higgs boson contained in it. In this article, we study the prospect of MACE to probe these models via the muonium-to-antimuonium transitions. After considering the limits from mu(+) -> e(+)gamma and mu(+)( )-> e(+)e(-)e(+), we find that MACE could probe a parameter space for the doubly charged Higgs boson, which is beyond the reach of LHC and other flavor experiments.
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