Measurement of dijet production with a leading proton in proton-proton collisions at √s=8 Tev with the CMS and TOTEM detectors at the LHC

• Ano de defesa: 2017
• Autor(a) principal: Huertas Guativa, Lina Milena
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: eng
• Instituição de defesa: Universidade do Estado do Rio de Janeiro; Centro de Tecnologia e Ciências::Instituto de Física Armando Dias Tavares; Brasil; UERJ; Programa de Pós-Graduação em Física
• Palavras-chave em Português: Roman Pots; CMS/TOTEM; Diffraction; Proton-proton interactions; Particle accelerators; Compact muon solenoid; Large Hadron Collider (France and Switzerland); Single diffraction; Dijet production; Difração; Interações próton-próton; Aceleradores de partículas; Solenóide de múon compacto; Grande colisor de hádrons (França e Suíça); Difração simples; Produção de dijatos; CIENCIAS EXATAS E DA TERRA::FISICA::FISICA DAS PARTICULAS ELEMENTARES E CAMPOS
• Link de acesso: http://www.bdtd.uerj.br/handle/1/17434

A study of dijet production associated with a leading proton is presented. The analysis is based on a common data set collected simultaneously with the CMS and TOTEM experiments at the LHC with proton-proton collisions at √s=8 Tev during a dedicated run with β^* = 90 m, at low instantaneous luminosity. The data correspond to an integrated luminosity of 37:5 nb-1. The analysis presents the measurements of the dijet production cross section, as a function of ε, the proton fractional momentum loss, and as a function of t, the 4-momentum transfer squared at the proton vertex. The dijet cross section in the kinematic region defined by ε < 0:1, 0:03 < t < 1 Ge√^2, ε < 0, 1, for jets with transverse momentum pT > 40 GeV, and pseudorapidity n < 4:4, was measured to be [...]. The suppression factor of the cross section with respect to the prediction from the diffractive PDFs measured at HERA is also presented. The ratio of the single-diffractive to inclusive dijet yields is presented as a function of x, the momentum fraction of the parton initiating the hard scattering. The ratio in the kinematic region defined above, for x values in the range [...] was measured as [...] .