The measurent of the bb_bar production cross-section is a very important test of our understanding of QCD at high energies. In this thesis we will present a novel method for this measurement using comparison between pileup and signal vertices, which avoids sistematic errors due to luminosity or branching ratios of intermediate processes and might provide a better accuracy compared to previous measures.

Misura della produzione di coppie b-anti b in collisioni protone-protone a 13 TeV nell'esperimento CMS / Measurement of bb_bar production in s = 13 TeV pp collisions with the CMS experiment

Lusiani, Enrico
2019/2020

Abstract

The measurent of the bb_bar production cross-section is a very important test of our understanding of QCD at high energies. In this thesis we will present a novel method for this measurement using comparison between pileup and signal vertices, which avoids sistematic errors due to luminosity or branching ratios of intermediate processes and might provide a better accuracy compared to previous measures.
2019-03-25
51
cross-section, CMS, B-Physics
Lauree magistrali
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12608/27755