Phys. Rev. Lett. 93, 121801 (2004) [4 pages]Determination of the a0-a2 Pion Scattering Length from K+→π+π0π0 DecayReceived 20 May 2004; published 16 September 2004 We present a new method for the determination of the π-π scattering length combination a0-a2, based on the study of the π0π0 spectrum in K+→π0π0π+ in the vicinity of the π+π- threshold. The method requires a minimum of theoretical input, and is potentially very accurate. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.121801
DOI:
10.1103/PhysRevLett.93.121801
PACS:
13.25.Es, 11.30.Rd, 13.75.Lb
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