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Determination of the $a_{0}-a_{2}$ pion scattering length from $K^{+} \to \pi^{+}\pi^{0}\pi^{0}$ decay

We present a new method for the determination of the pion-pion scattering lenght combination a0-a2, based on the study of the pi0-pi0 spectrum in K->pi+ pi0 pi0 in the vicinity of the pi+ pi- threshold. The method requires a minimum of theoretical input, and is potentially very accurate.

Detalles Bibliográficos
Autor principal: Cabibbo, Nicola
Lenguaje:eng
Publicado: 2004
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.93.121801
http://cds.cern.ch/record/733406