نتایج جستجو برای: antiproton
تعداد نتایج: 1381 فیلتر نتایج به سال:
Representing the CDF and D0 collaborations I present a review of the searches for charginos and neutralinos using data from proton-antiproton collision at the centre of mass energy of 1.96 TeV collected by the CDF and the D0 experiments at the Tevatron during run II.
We present a computation of the cross section of protonium formation in antiproton-hydrogen collisions using the nonlocal resonance model. It is based on restoration of the Born-Oppenheimer approximation, when the adiabatic electronic basis is replaced with the so called diabatic one. This allows us to separate the electron and hadron parts of our problem at the cost of a nonlocal potential in ...
The energy spectrum of cosmic-ray antiprotons ( &pmacr;'s) has been measured in the range 0.18-3.56 GeV, based on 458 &pmacr;'s collected by BESS in a recent solar-minimum period. We have detected for the first time a characteristic peak at 2 GeV of &pmacr;'s originating from cosmic-ray interactions with the interstellar gas. The peak spectrum is reproduced by theoretical calculations, implying...
In this contribution we present numerical simulations of thermodynamic and hydrodynamic response of a proposed production target (see Fig. 1) for generation of antiprotons at the Facility for Antiprotons and Ion Research (FAIR), at Darmstadt. As seen in Fig. 1, it consists of a Ni cylinder which has a radius of 0.15 cm and a length of 10 cm and is enclosed in solid graphite casing which is foll...
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