03609nam 22006135 450 991083506070332120240212183754.09783031509315303150931510.1007/978-3-031-50931-5(MiAaPQ)EBC31149800(Au-PeEL)EBL31149800(DE-He213)978-3-031-50931-5(CKB)30327380600041(OCoLC)1423519829(EXLCZ)993032738060004120240212d2024 u| 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierFirst Differential Measurements of tZq Production and Luminosity Determination Using Z Boson Rates at the LHC /by David Walter1st ed. 2024.Cham :Springer Nature Switzerland :Imprint: Springer,2024.1 online resource (202 pages)Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5061Print version: Walter, David First Differential Measurements of TZq Production and Luminosity Determination Using Z Boson Rates at the LHC Cham : Springer,c2024 9783031509308 Introduction -- Theoretical Foundations of Single Top Quark Physics at the LHC -- The CMS Experiment at the LHC -- Luminosity Determination Using Z Boson Production -- Measurements of Single Top Quark Production in Association With a Z Boson. Summary and conclusions.This thesis describes two groundbreaking measurements in the precision frontier at the LHC: the first ever differential measurement of the Z-associated single top quark (tZq) production, and the luminosity measurement using Z boson production rate for the first time in CMS. Observed only in 2018, the tZq process is of great importance in probing top quark electroweak couplings. These couplings are natural places for new phenomena to happen in the top quark sector of the standard model. Yet, they are the least explored directly. One has to obtain a firm understanding of the modeling of sensitive distributions to new top-Z interactions. The present analysis marks a major milestone in this long-term effort. All distributions relevant for new phenomena, and/or modeling of tZq, are studied in full depth using advanced Machine Learning techniques.The luminosity and its uncertainty contributes to every physics result of the experiment. The method minutely developed in this thesis provides a complementary measurement that results in a significant overall reduction of uncertainties.Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5061Particles (Nuclear physics)Mathematical physicsMeasurementMeasuring instrumentsParticle PhysicsTheoretical, Mathematical and Computational PhysicsMeasurement Science and InstrumentationParticles (Nuclear physics)Mathematical physics.Measurement.Measuring instruments.Particle Physics.Theoretical, Mathematical and Computational Physics.Measurement Science and Instrumentation.539.72Walter David1772125MiAaPQMiAaPQMiAaPQBOOK9910835060703321First Differential Measurements of tZq Production and Luminosity Determination Using Z Boson Rates at the LHC4271757UNINA