Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collision at √s = 8 TeV. / Kempster, Jacob.

2017. 249 p.

Research output: ThesisDoctoral Thesis

Unpublished

Documents

Abstract

Same- and opposite-sign charge asymmetries are measured in lepton+jets top anti-top events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb-1 from proton-proton collisions at a centre-of-mass energy of √= 8 TeV collected by the ATLAS detector at the Large Hadron Collider at CERN.  The charge asymmetries are based on the charge of the lepton from the top-quark decay and the charge of the soft muon from the semileptonic decay of a b-hadron and are measured in a fiducial region corresponding to the experimental acceptance.  Four CP asymmetries (one mixing and three direct) are measured and are found to be compatible with zero and consistent with the Standard Model.
Original languageEnglish
QualificationPh.D.
Awarding Institution
Supervisors/Advisors
Thesis sponsors
  • Science & Tech Fac Coun (STFC)
Award date1 Nov 2017
Publication statusUnpublished - 2017
This open access research output is licenced under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

ID: 28650627