## Abstract

We discuss the decays ψ';'→J/ψ+π^{0} and ψ';'→J/ψ+η. We obtain a reliable, model-independent theoretical prediction for the ratio of the decay rates based only on the QCD lagrangian and certain low-energy theorems. The theoretical formula, apart from kinematical factors, contains only the ratio of the current quark masses, m_{d}/m_{u}. Under a standard choice of m_{d}/m_{u} theory and experiment are in good agreement with each other.

Original language | English (US) |
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Pages (from-to) | 99-102 |

Number of pages | 4 |

Journal | "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics" |

Volume | 95 |

Issue number | 1 |

DOIs | |

State | Published - 1980 |

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