Medida da seção de choque difrativa simples dσ/d|t| a √s = 8 TeV no experimento CMS

The goal of the analysis presented in this dissertation is the measurement of the diffractive cross section dσ/d|t| at center of mass energy of √s = 8 TeV. The events were selected for single diffractive processes with one scattering proton in the forward region and the kinematic region of 0,03 <|t| < 1,0 GeV² e 0,03 < ξ < 0.1, using the data collected during 2012 by both the CMS and TOTEM detectors, whose joint acceptance allows a more detailed perspective of the diffractive processes. The data were corrected for the effects of detector acceptance and efficiency. Since the exponential parametrization Ae ^Bt was fit to data, the value obtained for the slope for a precess when the scattering proton is detected in both positive or negative regions of CMS is of B= -6,403 ± 1,241 GeV-² .