Chapter

Telescopes Aimed at Zeptospace

Gian Francesco Giudice

in A Zeptospace Odyssey: A Journey into the Physics of the LHC

Published in print December 2009 | ISBN: 9780199581917
Published online February 2010 | e-ISBN: 9780191723001 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199581917.003.0007
Telescopes Aimed at Zeptospace

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The detectors are the instruments used to register the particles produced in the proton collisions and to reconstruct their tracks. This chapter describes the two main detectors employed at the LHC: ATLAS and CMS. The four main components common to both detectors are the trackers, the electromagnetic calorimeters, the hadron calorimeters, and the muon chambers. Both the ATLAS and the CMS detectors are built around powerful magnets that are needed to bend the trajectories of the charged particles produced in the collisions. This chapter also describes the trigger, which is the electronic system for identifying potentially interesting collisions events that are retained for offline analysis. The other experiments at the LHC are shortly presented. The chapter concludes with some observations on the human aspects of scientific international collaborations.

Keywords: detectors; ATLAS; CMS; trackers; calorimeters; muon chambers; magnets; data; trigger; international scientific collaborations

Chapter.  8251 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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