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preprints:2000:ttp00-30 [2016/03/15 20:39] (current)
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 +====== TTP00-30 Search for the CP Forbidden Decay eta to 4 pi0 ====== 
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 +<hidden TTP00-30 ​ Search for the CP Forbidden Decay eta to 4 pi0 > We report the first determination of the upper limit for the branching ratio 
 + of the CP forbidden decay eta to 4 pi0.  No events were observed in a sample 
 + of 3.0×10^7 eta decays. ​ The experiment was performed with the Crystal Ball 
 + ​multiphoton spectrometer installed in a separated pi- beam at the AGS 
 + ​(Alternating Gradient Synchrotron). ​ At the 90% confidence limit, 
 + B(eta to 4 pi0) <= 6.9×10^-7.  
 + </​hidden>​ 
 +|**S. Prakhov, Hans-Martin Staudenmaier &amp; al.**  |  
 +|** Phys. Rev. Lett. 84 4802-4805 2000  **  | 
 +| {{preprints:​2000:​ttp00-30.pdf|PDF}} {{preprints:​2000:​ttp00-30.ps|PostScript}} ​  | 
 +| |