We have measured the K+ K-/pi+-pi- ratio R from pBAR annihilations in gaseous D2 and H-2 at atmospheric pressure. The measurement was performed with the OBELIX spectrometer. From the measured value in gaseous D2 (0.27+/-0.02) we infer a P wave contribution to p-pBAR annihilation in D2 of (18+/-7)%.
A Measurement of the K+k-/pi+pi- Ratio From (p)bar Annihilation In Deuterium and Hydrogen Gas
BALESTRA, Ferruccio;BRESSANI, Tullio;BUSSA, Maria Pia;BUSSO, Luigi;COSTA, Sergio;FERRERO, Livio;GARFAGNINI, Raffaello;GRASSO, Antonino;MARCELLO, Simonetta;PANZIERI, Daniele;PIRAGINO, Guido;ZOSI, Gianfranco
1992-01-01
Abstract
We have measured the K+ K-/pi+-pi- ratio R from pBAR annihilations in gaseous D2 and H-2 at atmospheric pressure. The measurement was performed with the OBELIX spectrometer. From the measured value in gaseous D2 (0.27+/-0.02) we infer a P wave contribution to p-pBAR annihilation in D2 of (18+/-7)%.
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