====== TTP01-36 Determination of the Quadratic Slope Parameter in eta to 3 pi0 Decay ======
 
 
<hidden TTP01-36  Determination of the Quadratic Slope Parameter in eta to 3 pi0 Decay > We have determined the quadratic slope parameter alpha for eta to 3 pi0
 to be alpha = -0.031(4) from a 99% pure sample of 10^6 eta to 3 pi0 decays
 produced in the reaction pi- p to n eta close to the eta threshold
 using the Crystal Ball detector at the AGS.  The result is four times
 more precise than the present world data and disagrees with current
 chiral perturbation theory calculations by about four standard deviations.
 </hidden>
|**W. B. Tippens, Hans-Martin Staudenmaier &amp; al.**  | 
|** Phys. Rev. Lett. 87 192001 2001  **  |
| {{preprints:2001:ttp01-36.pdf|PDF}} {{preprints:2001:ttp01-36.ps|PostScript}}   |
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