The annihilation frequency of the reaction ($) over bar pp --> pi(0) pi(0) has been measured, for the first time by stopping antiprotons in a NTP hydrogen target. The obtained result f(pi(0) pi(0))(NTP) = (12.7+/-0.5+/-2.0)X10(-4) is discussed in the frame of the study of the initial angular momentum of the ($) over bar pp system.
Measurement of the Frequency of the Annihilation Reaction (p)over-barp-]pi(0)pi(0) At Rest In A Ntp Hydrogen Target
BALESTRA, Ferruccio;BOTTA, Elena;BRESSANI, Tullio;BUSSA, Maria Pia;BUSSO, Luigi;COSTA, Sergio;FERRERO, Livio;GARFAGNINI, Raffaello;GRASSO, Antonino;MARCELLO, Simonetta;PANZIERI, Daniele;ZOSI, Gianfranco
1994-01-01
Abstract
The annihilation frequency of the reaction ($) over bar pp --> pi(0) pi(0) has been measured, for the first time by stopping antiprotons in a NTP hydrogen target. The obtained result f(pi(0) pi(0))(NTP) = (12.7+/-0.5+/-2.0)X10(-4) is discussed in the frame of the study of the initial angular momentum of the ($) over bar pp system.
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