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Measurements of Higgs Boson Properties in Proton-Proton Collisions at vs =7, 8 and 13 TeV at the CERN Large Hadron Collider

Af: Ulascan Sarica Engelsk Hardback

Measurements of Higgs Boson Properties in Proton-Proton Collisions at vs =7, 8 and 13 TeV at the CERN Large Hadron Collider

Af: Ulascan Sarica Engelsk Hardback
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This thesis documents the measurement of lifetime, width, mass, and couplings to two electroweak bosons of the recently-discovered Higgs boson using data from the CMS experiment at the Large Hadron Collider. Both on-shell (at the mass of around 125 GeV) and off-shell (above 200 GeV) Higgs boson production is studied and an excess of off-shell production with significance above two standard deviations is observed for the first time. The latter is a qualitative new way to study the Higgs field, responsible for generation of mass of all the known elementary particles. In addition, phenomenological tools have been developed with the Monte Carlo event generator and matrix element techniques for an optional analysis of LHC data. Optimization of the CMS data with careful alignment of the silicon tracker is also presented.

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This thesis documents the measurement of lifetime, width, mass, and couplings to two electroweak bosons of the recently-discovered Higgs boson using data from the CMS experiment at the Large Hadron Collider. Both on-shell (at the mass of around 125 GeV) and off-shell (above 200 GeV) Higgs boson production is studied and an excess of off-shell production with significance above two standard deviations is observed for the first time. The latter is a qualitative new way to study the Higgs field, responsible for generation of mass of all the known elementary particles. In addition, phenomenological tools have been developed with the Monte Carlo event generator and matrix element techniques for an optional analysis of LHC data. Optimization of the CMS data with careful alignment of the silicon tracker is also presented.

Produktdetaljer
Sprog: Engelsk
Sider: 103
ISBN-13: 9783030254735
Indbinding: Hardback
Udgave:
ISBN-10: 3030254739
Udg. Dato: 9 okt 2019
Længde: 0mm
Bredde: 155mm
Højde: 235mm
Forlag: Springer Nature Switzerland AG
Oplagsdato: 9 okt 2019
Forfatter(e): Ulascan Sarica
Forfatter(e) Ulascan Sarica


Kategori Partikelfysik og højenergifysik


ISBN-13 9783030254735


Sprog Engelsk


Indbinding Hardback


Sider 103


Udgave


Længde 0mm


Bredde 155mm


Højde 235mm


Udg. Dato 9 okt 2019


Oplagsdato 9 okt 2019


Forlag Springer Nature Switzerland AG