The cosmic muon flux in the ATLAS Detector at the Large Hadron Collider

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dc.contributor.authorHill, Ewan Chin
dc.contributor.supervisorTrigger, Isabel
dc.contributor.supervisorLefebvre, Michel
dc.date.accessioned2011-09-01T17:43:09Z
dc.date.available2011-09-01T17:43:09Z
dc.date.copyright2011en_US
dc.date.issued2011-09-01
dc.degree.departmentDepartment of Physics and Astronomy
dc.degree.levelMaster of Science M.Sc.en_US
dc.description.abstractMany ATLAS analyses study events with muons in them including those searching for the Higgs boson and new physics. Cosmics muons, however, can also occasionally enter the detector and mimic the trajectory of a muon from one of the collisions produced by CERN’s Large Hadron Collider. By understanding the different ways ATLAS triggers on, collects, reconstructs, and analyses data from cosmic rays and collisions, the flux of cosmic muons with transverse momenta above 20 GeV in the central region of the detector was measured to be 1.34 ± 0.06 (stat.) s^−1 m^−2 . At the same time the cosmic muon charge ratio has been measured to be 1.3 ± 0.1 (stat.). This measurement of the cosmic muon flux in ATLAS is the first step in quantifying the sizes of the cosmic muon backgrounds to various physics analyses that look for events with muons.en_US
dc.description.scholarlevelGraduateen_US
dc.identifier.urihttp://hdl.handle.net/1828/3544
dc.languageEnglisheng
dc.language.isoenen_US
dc.rights.tempAvailable to the World Wide Weben_US
dc.subjectATLASen_US
dc.subjectLarge Hadron Collideren_US
dc.subjectLHCen_US
dc.subjectCosmic Radiationen_US
dc.subjectMuonen_US
dc.subjectExperimental Particle Physicsen_US
dc.subjectParticle Physicsen_US
dc.subjectPhysicsen_US
dc.titleThe cosmic muon flux in the ATLAS Detector at the Large Hadron Collideren_US
dc.typeThesisen_US

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