Subthreshold antiproton production in nucleus-nucleus collisions.
نویسندگان
چکیده
Antiproton production from the secondary process pp~ pp is studied for nucleus-nucleus collisions at energies which are below the threshold for its production from the nucleon-nucleon reaction in the free space. In an expanding fireball model, we determine the p abundance from the fusion of pions and find that for collisions at 2. 1 GeV/nucleon the antiproton to negative pion ratio is = 5.5&10 and has a similar magnitude to that of the data.
منابع مشابه
Antiproton Production in p+d Reaction at Subthreshold Energies
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عنوان ژورنال:
- Physical review. C, Nuclear physics
دوره 40 3 شماره
صفحات -
تاریخ انتشار 1989