A new measurement of K+(e4) decay and the s-wave pi-pi-scattering length a00

Preprint

19 June 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0106071

Abstract

A sample of 400000 events from the decay K+->pi+pi-e+nu(e)(K(e4)) has been collected in experiment E865 at the Brookhaven AGS. The analysis of these data yields new measurements of the K(e4) branching ratio (4.11+-0.01+-0.11)*10**(-5)), the s-wave pi-pi scattering length a00=0.228+-0.012+-0.003, and the form factors F, G, and H of the hadronic current and their dependence on the invariant pi-pi mass.

Keywords

ANALYSIS OF THESE DATA
SCATTERING LENGTH
MEASUREMENT OF K
NEW MEASUREMENT
PI SCATTERING
LENGTH A00
WAVE PI
PI PI

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Version 1, 2001-06-19, ArXiv

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