constraints on the new particle in Σ → p μμ
DESCRIPTION
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 PresentationTRANSCRIPT
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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
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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)
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ExperimentExperiment
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The effective Hamiltonian
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The Amplitude
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The form factors
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The Form FactorsThe Form Factors
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Constraints from K→ Constraints from K→ ππμμμμ
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ConstraintsConstraints from KL→ from KL→μμμμ
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Constraints from KL→μμ
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The models?
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The models?
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Comparison
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Summary