Electron and hadronic recoil calibration for the first measurement of the mass of the W boson by the ATLAS experiment at the Large Hadron Collider
<p>This thesis presents work towards the first measurement of the mass of the W boson (<em>m<sub>W</sub></em>) at ATLAS at the Large Hadron Collider using √<sup><sup>—</sup></sup><sub style="position:relative;left: -.5em;"><em&...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
2014
|
| Subjects: |
| _version_ | 1797109718361047040 |
|---|---|
| author | Davies, EL |
| author2 | Hays, C |
| author_facet | Hays, C Davies, EL |
| author_sort | Davies, EL |
| collection | OXFORD |
| description | <p>This thesis presents work towards the first measurement of the mass of the W boson (<em>m<sub>W</sub></em>) at ATLAS at the Large Hadron Collider using √<sup><sup>—</sup></sup><sub style="position:relative;left: -.5em;"><em>s</em></sub> = 7 TeV collision data taken in 2011. The electron energy calibration is presented, including a detailed study of the linearity of the ATLAS electromagnetic calorimeter. Separately, the measurement of the W boson recoil is calibrated using Z boson events. Recoil corrections for the underlying event, pileup, recoil magnitude resolution, recoil angular resolution and recoil response mismodelling are determined, with statistical uncertainties on these corrections corresponding to an estimated uncertainty on <em>m<sub>W</sub></em> of 3.9 MeV. The corrections for calorimeter non-linearity and recoil modelling improve the description of the data, though systematic biases remain. To achieve a precision commensurate with the statistics of the data, these biases will need to be understood.</p> |
| first_indexed | 2024-03-07T07:43:51Z |
| format | Thesis |
| id | oxford-uuid:61c91234-837d-4462-9e29-c317f90001ed |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:43:51Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | oxford-uuid:61c91234-837d-4462-9e29-c317f90001ed2023-05-25T13:03:38ZElectron and hadronic recoil calibration for the first measurement of the mass of the W boson by the ATLAS experiment at the Large Hadron ColliderThesishttp://purl.org/coar/resource_type/c_db06uuid:61c91234-837d-4462-9e29-c317f90001edParticle physicsEnglishOxford University Research Archive - Valet2014Davies, ELHays, CHaywood, S<p>This thesis presents work towards the first measurement of the mass of the W boson (<em>m<sub>W</sub></em>) at ATLAS at the Large Hadron Collider using √<sup><sup>—</sup></sup><sub style="position:relative;left: -.5em;"><em>s</em></sub> = 7 TeV collision data taken in 2011. The electron energy calibration is presented, including a detailed study of the linearity of the ATLAS electromagnetic calorimeter. Separately, the measurement of the W boson recoil is calibrated using Z boson events. Recoil corrections for the underlying event, pileup, recoil magnitude resolution, recoil angular resolution and recoil response mismodelling are determined, with statistical uncertainties on these corrections corresponding to an estimated uncertainty on <em>m<sub>W</sub></em> of 3.9 MeV. The corrections for calorimeter non-linearity and recoil modelling improve the description of the data, though systematic biases remain. To achieve a precision commensurate with the statistics of the data, these biases will need to be understood.</p> |
| spellingShingle | Particle physics Davies, EL Electron and hadronic recoil calibration for the first measurement of the mass of the W boson by the ATLAS experiment at the Large Hadron Collider |
| title | Electron and hadronic recoil calibration for the first measurement of the mass of the W boson by the ATLAS experiment at the Large Hadron Collider |
| title_full | Electron and hadronic recoil calibration for the first measurement of the mass of the W boson by the ATLAS experiment at the Large Hadron Collider |
| title_fullStr | Electron and hadronic recoil calibration for the first measurement of the mass of the W boson by the ATLAS experiment at the Large Hadron Collider |
| title_full_unstemmed | Electron and hadronic recoil calibration for the first measurement of the mass of the W boson by the ATLAS experiment at the Large Hadron Collider |
| title_short | Electron and hadronic recoil calibration for the first measurement of the mass of the W boson by the ATLAS experiment at the Large Hadron Collider |
| title_sort | electron and hadronic recoil calibration for the first measurement of the mass of the w boson by the atlas experiment at the large hadron collider |
| topic | Particle physics |
| work_keys_str_mv | AT daviesel electronandhadronicrecoilcalibrationforthefirstmeasurementofthemassofthewbosonbytheatlasexperimentatthelargehadroncollider |