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The Production Of A Standard Model Higgs Boson In Association With W/Z Gauge Bosons

Posted on:2019-12-09Degree:MasterType:Thesis
Country:ChinaCandidate:Z N T W F L PaiFull Text:PDF
GTID:2370330566966609Subject:Physics
Abstract/Summary:PDF Full Text Request
With the existence of Higgs particles is confirmed by ATLAS and CMS experimental group.The research of Higgs particles has become a popular research direction.The Higgs particles found in the model coincide with the predictions in the standard model,and no part of the standard model has yet been found.We also need to determine the parity,spin,coupling,various properties.If the deviation,it means that there may be new physics beyond the standard model.Up to now,the measurement of the large hadron collider has been calculated to the next-to-leading order(NLO)QCD.However,in order to improve the accuracy of the wavelet generation process in the LHC,the correction of QCD is often not enough.We need to incorporate the electroweak(EW)correction.Through EW correction we can get a higher accuracy of the theoretical predictions,which helps us to understand the experimental data more fully.There are four main processes for Higgs boson production at the LHC: gluon fusion,Higgs strahlung,weak boson fusion and top fusion.In the SM,the Higgs strahlung processpp ? V H ? l?l/l-l++ H,(V = W or Z)is the most important channel for the measurement of the Standard Model Higgs-boson,and only one channel for testing the coupling of the Higgs boson and W/Z boson,at the LHC.In this paper,we will discuss the Higgs strahlung process.We using the photon parton distribution function(PDF)NNPDF2.3QED,NNPDF3.0QED,MRST2004 QED,CT14QEDinc,and LUXqed PDFs calculate the total,fiducial and differential cross sections;NLO QCD and EW corrections;incoming gluon corrections;incoming photon cross sections and PDF uncertainty before and after the PDF reweighting;transverse momentum and repidity of Higgs boson distributions,with HAWK.The NLO QCD corrections increases the Leading order(LO)cross section by about +17%,the NLO EW corrections depends on the PDFs,at the LHC with 13 Te V and Higgs-boson mass MH = 125 Ge V.
Keywords/Search Tags:Parton distribution function, Cross section, Higgs boson, QCD correction
PDF Full Text Request
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