000			01559nam a22001697a 4500
999			_c21821 _d21821
005			20221005184345.0
008			221005b ||||| |||| 00| 0 eng d
020			_ahbk
082			_a537.56 _bT62
100			_aMuhammad Nawaz, _bMS Physics, _c2016-2018 _dSupervised by Dr.Sarwat Zahra
245			_aTop quark cross-section measurement at large hadron collider _c/ Muhammad Nawaz
260			_aLahore : _bDivision of Science & Technology, University of Education, _c2018
300			_axv, 51 p. _eCD
520			_aThe top quark is unique as compared to all other quarks because it decays before hadronized and is one of the massive known elementary particles. The top quark is an intriguing particle, massive and fleeting in which continues to provide a broad range of interesting research topic. This thesis has four parts, and the first chapter contains the literature review which includes the brief overview of standard model, basic terminology and some experimental parameters regarding particle physics. The second one includes the detail description of the different subsystem of the ATLAS detector Chapter three focuses on the different production modes of top quark like single top quark and top quark produced in pair. Chapter four discuss the samples, event selection and tt̄ cross-section measurement at their respective energies of 7,8 and 12 TeV. The measured cross-section and uncertainties are presented and compared to theoretical prediction based on standerd model.
650			_aPhysics--Measurement--Hadron Collider
942			_cTH