The development of missing transverse momentum reconstruction with the ATLAS detector using the PUfit algorithm in pp collisions at 13 TeV

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dc.contributor.authorLi, Zhelun
dc.contributor.supervisorKowalewski, Robert V.
dc.date.accessioned2019-08-19T17:41:06Z
dc.date.available2019-08-19T17:41:06Z
dc.date.copyright2019en_US
dc.date.issued2019-08-19
dc.degree.departmentDepartment of Physics and Astronomyen_US
dc.degree.levelMaster of Science M.Sc.en_US
dc.description.abstractMany interesting physical processes produce non-interacting particles that could only be measured using the missing transverse momentum. The increase of the proton beam intensity in the Large Hadron Collider (LHC) provides sensitivity to rare physics processes while inevitably increasing the number of simultaneous proton collisions in each event. The missing transverse momentum (MET) is a variable of great interest, defined as the negative sum of the transverse momentum of all visible particles. The precision of the MET determination deteriorates as the complexity of the recorded data escalates. Given the current complexity of data analysis, a new algorithm is developed to effectively determine the MET. Several well-understood physics processes were used to test the effectiveness of the newly designed algorithm. The performance of the new algorithm is also compared to that of the standard algorithm used in the ATLAS experiment.en_US
dc.description.scholarlevelGraduateen_US
dc.identifier.urihttp://hdl.handle.net/1828/11035
dc.languageEnglisheng
dc.language.isoenen_US
dc.rightsAvailable to the World Wide Weben_US
dc.subjectLarge Hadron Collider (LHC)en_US
dc.subjectmissing transverse momentum (MET)en_US
dc.subjectproton beam intensityen_US
dc.titleThe development of missing transverse momentum reconstruction with the ATLAS detector using the PUfit algorithm in pp collisions at 13 TeVen_US
dc.typeThesisen_US

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