03142nam a22004695i 4500001001800000003000900018005001700027007001500044008004100059020001800100024003500118050001600153072001600169072002300185072001500208100007600223245015700299250001800456264006900474300006500543336002600608337002600634338003600660347002400696490007200720505027200792520109501064650003302159650002602192650001702218650002702235650002202262650005702284650004502341710003402386773002602420776003602446776003602482776003602518830007202554856004602626978-3-031-50931-5DE-He21320251030111424.0cr nn 008mamaa240212s2024    sz |    s    |||| 0|eng d  a97830315093157 a10.1007/978-3-031-50931-52doi 4aQC793-793.5 7aPHP2bicssc 7aSCI0510002bisacsh 7aPHP2thema1 aWalter, David.eauthor.4aut4http://id.loc.gov/vocabulary/relators/aut10aFirst Differential Measurements of tZq Production and Luminosity Determination Using Z Boson Rates at the LHCh[electronic resource] /cby David Walter.  a1st ed. 2024. 1aCham :bSpringer Nature Switzerland :bImprint: Springer,c2024.  aXV, 194 p. 102 illus., 89 illus. in color.bonline resource.  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier  atext filebPDF2rda1 aSpringer Theses, Recognizing Outstanding Ph.D. Research,x2190-50610 aIntroduction -- 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.  aThis 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. 0aParticles (Nuclear physics). 0aMathematical physics. 0aMeasurement. 0aMeasuring instruments.14aParticle Physics.24aTheoretical, Mathematical and Computational Physics.24aMeasurement Science and Instrumentation.2 aSpringerLink (Online service)0 tSpringer Nature eBook08iPrinted edition:z978303150930808iPrinted edition:z978303150932208iPrinted edition:z9783031509339 0aSpringer Theses, Recognizing Outstanding Ph.D. Research,x2190-506140uhttps://doi.org/10.1007/978-3-031-50931-5