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Constraints on the new particle in Σ → p μμ. Yu-Kuo Hsiao With the collaborator C.Q. Geng National Tsing-Huang University, Taiwan Based on ph/0509175, to appear in PLB. Experiment Constraints from other modes Summary Comparison. New particles with different masses?. - PowerPoint PPT Presentation
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Constraints on the new particle in Σ→ pμμ
Yu-Kuo HsiaoWith the collaborator C.Q. Geng
National Tsing-Huang University, TaiwanBased on ph/0509175, to appear in PLB.
• Experiment• Constraints from other modes• Summary• Comparison
New particles with different masses?
Dark matter particle with mass of (ph/0508572)
Axion-like particle with mass of 0.7 meV-2 meV from PVLAS Collaboration. (ex/0507107)
A light scalar boson of mass 1-10 MeV, accounting for the fluxes of 511 keV gamma ray.(PLB 624, 162)
Intermediate boson with mass of 214.3 MeV from HyperCP Collaboration. (PRL94, 021801)
ExperimentExperiment
The effective Hamiltonian
The Amplitude
The form factors
The Form FactorsThe Form Factors
Constraints from K→ Constraints from K→ ππμμμμ
ConstraintsConstraints from KL→ from KL→μμμμ
Constraints from KL→μμ
The models?
The models?
Comparison
Summary
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