Perspectivas y Evaluación de producción de Materia Oscura en asociación con un quark liviano, un quark pesado (quark b) o un boson electro débil en colisiones de particular a energías de colisión de $\sqrt(s) = 8$ TeV

The Weakly Interacting Massive Particles, or WIMPs, are the only major Dark Matter (DM) candidate particles currently accessible at the LHC. It is expected that the production of a pair of these particles in association with particles belonging to the Standard Model (SM) will be evidenced in final states with the presence of large quantities of Missing Transverse Moment ($E_{T}^{miss}$). This thesis summarises a model independent search for DM, in several final states that contain $E_{T}^{miss}$, called: Mono-jet, Mono-b and Mono-Z. Where the designation “Mono” refers to the presence of a single jet or boson which is used as a guide to discern between DM production and other final states with $E_{T}^{miss}$ but corresponding to only SM particle decays. The analysis were performed using open data published by ATLAS in 2016, collected during 2012, and that corresponds to an integrated total luminosity of 1 fb1. Where a pair of protons were collided with center-of-mass energy of $\sqrt(s) = 8$ TeV. No excess events were observed over predictions of the SM in any of the final states studied, as is evidenced by p-values calculations. Discarding the presence of events coming from new physics, coinciding with official results of the ATLAS Collaboration for such DM searches at $\sqrt(s) = 8$ TeV. All this using tools and techniques of high energy physics that is currently in used at the LHC collaborations.