Measurement of the inclusive production cros-section of W bosons at SQRT(S) = 2.76 TeV in the LHC (Medida de la sección eficaz de producción inclusiva de bosones W a SQRT(S) = 2.76 TeV en el LHC)
Measurements of inclusive W production cross-sections in pp collisions at center-of-mass energy of 2.76 TeV are presented for the first time, based on 241 inverse nanobarns of data recorded by the CMS detector at the LHC. The measurement, performed in the muon decay channel, gives σ_pp →WX× B(W → μν...
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| Formato: | tesis de maestría |
| Fecha de publicación: | 2011 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/46320 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/46320 |
| Access Level: | acceso abierto |
| Palavra-chave: | 539.12 539 Vector Bosons Cross Section LHC CMS Muon Electroweak Processes. Bosones Vectoriales Sección Eficaz Procesos Electrodébiles. Partículas Física nuclear 2208 Nucleónica 2207 Física Atómica y Nuclear |
| Resumo: | Measurements of inclusive W production cross-sections in pp collisions at center-of-mass energy of 2.76 TeV are presented for the first time, based on 241 inverse nanobarns of data recorded by the CMS detector at the LHC. The measurement, performed in the muon decay channel, gives σ_pp →WX× B(W → μν) = 3.94 ± 0.18(stat) ± 3.9(lumi) nb. Theoretical predictions, calculated at the next-tonext-to-leading order in QCD using recent parton distribution functions, are in agreement with the measured cross-sections. W^+ and W^− cross-sections and their ratio are also reported. This essay also presents a description of the CMS detector, of the generation and simulation of Monte Carlo samples of events as well as the characterization of signal events and the complete process of selection and reconstruction of these. |
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