First proton-proton collisions at the LHC as observed with the ALICE detector: measurement of the charged-particle pseudorapidity density at sqrt(s) = 900 GeV

Article Croatian OPEN
Antičić, Tome; Aamodt, K.; Nikolić, Vedran; Šuša, Tatjana; Zychaček, V.;
  • Publisher: Springer Verlag (Germany): SCOAP3
  • Identifiers: doi: 10.1140/epjc/s10052-009-1227-4
  • Subject: Physics
    arxiv: Physics::Instrumentation and Detectors | Physics::Accelerator Physics | Nuclear Experiment | High Energy Physics::Experiment

On 23rd November 2009, during the early commissioning of the CERN Large Hadron Collider (LHC), two counter-rotating proton bunches were circulated for the first time concurrently in the machine, at the LHC injection energy of 450 GeV per beam. Although the proton intens... View more
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