首页|Light axion-like particles and the pseudoscalar mesonic decays M→M'v(v)
Light axion-like particles and the pseudoscalar mesonic decays M→M'v(v)
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The axion-like particle(ALP)is one kind of the best-motivated new particles.We consider its production from the pseudoscalar mesonic decays M → M'a,with M being a pseudoscalar meson B or K.The upper limits on the flavor-conserving ALP-quark coupling parameter gu are obtained by assuming the ALP to be an invisible particle.We find that the most severe constraint on gu comes from the decay K+→π+v(v)for 0.05 GeV ≤ Ma ≤ 0.35 GeV,while the decays B+,0 → K+,0v(v)and B+,0 → π+,0v(v)can also generate significant constraints.
NETL
NSTL
万方数据
