Resonance contributions to the decay b → s l + l −
1991; American Physical Society; Volume: 43; Issue: 7 Linguagem: Inglês
10.1103/physrevd.43.r2067
ISSN1538-4500
AutoresPatrick O’Donnell, Humphrey K. K. Tung,
Tópico(s)Atomic and Subatomic Physics Research
ResumoWe comment on a discrepancy in sign between two recent papers [C. S. Lim, T. Morozumi, and A. I. Sanda, Phys. Lett. B 218, 343 (1989); N. G. Deshpande, J. Trampetic, and K. Panose, Phys. Rev. D 39, 1461 (1989)]; regarding the resonance contributions to the decay $b\ensuremath{\rightarrow}s{l}^{+}{l}^{\ensuremath{-}}$. We find that the problem can be settled by considering the unitarity limit in the Argand plot of the transition amplitude.
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