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CHINOWSKY 1955

Chinowsky, W.; Steinberger, J.;
Reaction π^– deuteron → n n π^o: Parity of the Neutral Meson
Phys. Rev. 100 (1955) 1476;

Abstracts
The branching ratio between the capture reactions π^– deuteron → 2n π^o and π^– deuteron → 2n γ been determined to be < 0.10%. Comparison with the previously measured branching ratio between the corresponding processes in hydrogen provides strong evidence for pseudoscalar π^o parity.

Accelerator NEVI-CYC Detectors CNTR

Related references
More (earlier) information appears in
W. Chinowsky and J. Steinberger, Phys. Rev. 95 (1954) 1561;
D. Bodansky et al., Phys. Rev. 93 (1954) 1367;
Analyse data from
R. Durbin, H. Loar, and J. Steinberger, Phys. Rev. 83 (1951) 646;
D. Clark, A. Roberts, and R. Wilson, Phys. Rev. 83 (1951) 649;
W. K. H. Panofsky, R. L. Aamodt, and J. Hadley, Phys. Rev. 81 (1951) 565;

Reactions

	π– deuteron 2n γ	<0.38 GeV (Plab)	cs
	π– deuteron 2n πo	<0.38 GeV (Plab)	cs
	πo 2γ

Particles studied

πo

qn

Record comments
First evidence for the odd parity of the π^o.

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