Test of CP invariance in Λ 0 decay

In an experiment at the CERN intersecting storage rings with √ s = 31 GeV, we have measured αP, the product of asymmetry parameter and polarization, for Λ 0's and Λ 0's produced in p p and pp interactions, respectively. The ratio, (αP) Λ/(αP Λ = −1.04±0.29 , is consistent with the value −1...

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Veröffentlicht in:	Physics letters. B 1985, Vol.163 (1), p.273-276
Hauptverfasser:	Chauvat, P., Erhan, S., Hayes, K., Smith, A.M., Meritet, L., Reyrolle, M., Vazeille, F., Bonino, R., Cousins, R., Kroll, I.J., Medinnis, M., Schlein, P.E., Sherwood, P., Zweizig, J.G., Alitti, J., Bloch-Devaux, B., Cheze, J.B., Mallet, J., Montag, A., Pichard, B., Zsembery, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	High Energy Physics - Experiment Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	In an experiment at the CERN intersecting storage rings with √ s = 31 GeV, we have measured αP, the product of asymmetry parameter and polarization, for Λ 0's and Λ 0's produced in p p and pp interactions, respectively. The ratio, (αP) Λ/(αP Λ = −1.04±0.29 , is consistent with the value −1, and constitutes the first test of CP invariance in Λ decay.
ISSN:	0370-2693 1873-2445
DOI:	10.1016/0370-2693(85)90236-9