Abstract
The Obelix experiment at CERN collected samples of antiproton annihilations at rest in different gaseous targets, such as hydrogen, deuterium and helium. We analyze a set of the Obelix data using a new technique for measuring, for the first time, the cascade times independent of the capture energy and of the antiproton stopping power. We report on measurements of the cascade times for hydrogen at 3.4, 5.8, 9.8 and 150 mbar and for helium at 8.2, 50 and 150 mbar pressure. An estimate of the antiproton capture energy in hydrogen is also presented. (C) 2000 Elsevier Science B.V.
Lingua originale | Inglese |
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pagine (da-a) | 224-228 |
Numero di pagine | 5 |
Rivista | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 487 |
Numero di pubblicazione | 3-4 |
DOI | |
Stato di pubblicazione | Pubblicato - 17 ago 2000 |
Pubblicato esternamente | Sì |