Narrow resonance in an open channel

D. Horn, Daniel E. Novoseller

Research output: Contribution to journalArticlepeer-review


We discuss the possibility that a very narrow resonance will exist in a multiresonance system above the threshold of an open decay channel. We show that its width varies as the square of the commutator of the mass and width matrices near the vanishing point of this commutator. A hypothetical example of such an effect, relevant to narrow-resonance searches in e+e- annihilation, is discussed.

Original languageEnglish
Pages (from-to)1763-1765
Number of pages3
JournalPhysical review D
Issue number7
StatePublished - 1978


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