منابع مشابه
The Production and Study of Antiprotons and Cold Antihydrogen
The public reporting burden for this collection of 1nfotmetion is estimated to average 1 hour per response. including the time for reviewing 1nsnucuons, searching existing dlta sources. gathering and maintaining the dala needed. and completing and reviewing the collection of information. Send comments regarding this burden •stimate or any other aspect of thts collectlon of information, includin...
متن کاملStacking of 3 GeV Antiprotons with a Moving Barrier Bucket Method at the RESR
At FAIR 3 GeV antiprotons are to be accumulated in the RESR up to an intensity of 10. If the CR is equipped for full performance, every 5 s a batch of 10 antiprotons will be transferred to the RESR. The antiprotons are precooled to a momentum spread of 0.1% and an emittance of 5 mm mrad. As an option, azimuthal separation of injected and stacked beams with barrier buckets was studied. The proce...
متن کاملAdiabatic cooling of antiprotons.
Adiabatic cooling is shown to be a simple and effective method to cool many charged particles in a trap to very low temperatures. Up to 3×10(6) p are cooled to 3.5 K-10(3) times more cold p and a 3 times lower p temperature than previously reported. A second cooling method cools p plasmas via the synchrotron radiation of embedded e(-) (with many fewer e(-) than p in preparation for adiabatic co...
متن کاملMeasurements of Atmospheric Antiprotons
We measured atmospheric antiproton spectra in the energy range 0.2 to 3.4 GeV, at sea level and at balloon altitude in the atmospheric depth range 4.5 to 26 g/cm. The observed energy spectra, including our previous measurements at mountain altitude, were compared with estimated spectra calculated on various assumptions regarding the energy distribution of antiprotons that interacted with air nu...
متن کاملAntiprotons at Solar Maximum
New measurements with good statistics will make it possible to observe the time variation of cosmic antiprotons at 1 AU through the approaching peak of solar activity. We report a new computation of the interstellar antiproton spectrum expected from collisions between cosmic protons and the interstellar gas. This spectrum is then used as input to a steady-state drift model of solar modulation, ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2002
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(02)02850-2