Summary
Angular correlation measurements in hyperon production by antiprotons in hydrogen yield a possible determination of the polarization of a high-energy p beam, to within the sign of its transverse component. The proposed method provides further a way of determining the transition matrix of the reaction, to within a similar ambiguity in sign.
Riassunto
Le misure della correlazione angolare nella produzione di iperoni da antiprotoni in idrogeno danno la possibilita di determinare la polarizzazione di nn fascio di p di alta energia, a meno del segno della sua oomponente trasversale. II metodo proposto fornisce un ulteriore mezzo per determinare la matrice di transizione della reazione, a meno di una simile ambiguita di segno.
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References
We assume as usual Tr ϱ9=l, but take for convenience a different normalization for ϱy. Tr ϱy is, to within phase-space factors, the cross-section for observing the YY pair.
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Cohen-Tannotjdji, G., Messiah, A.M.L. A measure of the polarization of high-energy p beam from angular correlation in reaction pp → YY. Nuovo Cim 33, 853–864 (1964). https://doi.org/10.1007/BF02749898
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DOI: https://doi.org/10.1007/BF02749898