Commissioning of the ALICE muon spectrometer trigger at LHC

  • S. Ahn
  • , R. Arnaldi
  • , Y. Baek
  • , A. Baldit
  • , V. Barret
  • , N. Bastid
  • , G. Batigne
  • , J. L. Béney
  • , R. Berny
  • , L. Bianchi
  • , A. Blanc
  • , G. Blanchard
  • , F. Bossù
  • , E. Chiavassa
  • , P. Cortese
  • , P. Crochet
  • , G. Dellacasa
  • , N. De Marco
  • , P. Dupieux
  • , A. Ferretti
  • M. Gagliardi, M. Gallio, C. Insa, F. Jouve, X. Lopez, G. Luparello, L. Manceau, F. Manso, P. Mereu, A. Musso, C. Oppedisano, A. Picotti, C. Renard, P. Rosnet, D. Roy, L. Royer, P. Saturnini, E. Scomparin, D. Stocco, E. Vercellin, B. Vulpescu, X. Zhang

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

ALICE (a large ion collider experiment) is the LHC experiment dedicated to the study of ultra-relativistic heavy ion collisions. The ALICE muon spectrometer covers a large range in pseudo-rapidity and is designed to study quarkonia and heavy flavours decaying into (di-)muons. The high particle multiplicities environment in such collisions require a specific, fast and efficient trigger system, the muon trigger. It consists of four planes of RPC detectors, covering an area of 36 m 2 each, 21k front-end channels and a fast-decision electronics. The muon trigger is designed to reconstruct (muon) tracks and deliver a trigger signal each 25 ns (40 MHz) with a total latency of 800 ns. The hit position on the RPC is measured in two orthogonal directions with an accuracy of about 1 cm. The performance measured with the first pp collisions at √(s)=900GeV carried out in December 2009 is reported.

Lingua originaleInglese
pagine (da-a)S41-S44
RivistaNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume661
Numero di pubblicazioneSUPPL. 1
DOI
Stato di pubblicazionePubblicato - 1 gen 2012

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