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Bunches of usually a few 10 9 antiprotons are skimmed off the AA and then decelerated by the PS from 3.5 GeV/c to 0.6 GeV/c. [5] [6] The bunch was transferred to LEAR where it could be decelerated to a minimum 100 MeV/c or accelerated to generally 1000 MeV/c. [5] For most experiments, a "beam stretcher mode" was used, where an ultra-slow ...
FASER (ForwArd Search ExpeRiment) is one of the nine particle physics experiments in 2022 at the Large Hadron Collider at CERN.It is designed to both search for new light and weakly coupled elementary particles, and to detect and study the interactions of high-energy collider neutrinos. [1]
Each bunch contains 2.2 × 10 8 lead ions, which are accelerated from 4.2 MeV per nucleon to 72 MeV per nucleon [7] before passing them through to the PS for storage. The most important function of LEIR is not acceleration, but electron cooling to reduce the emittance of the ion beam in order to maintain high luminosity of the final LHC beam.
[3] [4] The first beam circulated ELENA on 18 November 2016. [5] The ring is expected to be fully operational by the end of the Long Shutdown 2 (LS2) in 2021. GBAR experiment (AD-7) was the first experiment to use a beam from ELENA, with the rest of the AD experiments following suit after LS2 when beam transfer lines from ELENA will have been ...
The Big European Bubble Chamber (BEBC) is a large detector formerly used to study particle physics at CERN. The chamber body, a stainless-steel vessel, was filled with 35 cubic metres of superheated liquid hydrogen, liquid deuterium, or a neon-hydrogen mixture, [1] whose sensitivity was regulated by means of a movable piston weighing 2 tons ...
The TRAP collaboration achieved vacuum pressure as low as 10-14 Torr, with less than 1 annihilation per day. [4] The special type of trap-geometry and use of superconducting solenoid that would cancel the magnetic fluctuations were the crucial design aspects of the TRAP setup.
Typical conditions were: 7 × 10 7 stored positrons, a radius of 2 – 2.5 mm, a length of 32 mm, and a maximum density of 2. 5 × 10 8 cm −3. An antihydrogen annihilation detector was situated coaxially with the mixing region, between the trap outer radius and the magnet bore.
The process started with protons from the Super Proton Synchrotron (SPS) at CERN being fired in pulses at a carbon target to produce pions and kaons. These particles decay to produce muons and neutrinos. [1] The beam from CERN was stopped on 3 December 2012, [2] ending data taking, but the analysis of the collected data has continued.