Changes between Version 1 and Version 2 of Francqui
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- Apr 6, 2012, 4:33:02 PM (13 years ago)
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Francqui
v1 v2 23 23 24 24 * [http://www.hep.phy.cam.ac.uk/theory/webber/QCDbook.html QCD and Collider Physics] by Keith Ellis, James Stirling, Bryan Webber (Cambridge Monographs, 1996). 25 * [ :FurtherReading:Perspectives on LHC physics, Ed. by G. Kane and A. Pierce].25 * [wiki:FurtherReading Perspectives on LHC physics, Ed. by G. Kane and A. Pierce]. 26 26 27 27 === Higgs notebooks === 28 28 29 1. pp >H at LO (1-loop): details of the calculation (Mathematica Notebook) [attachment:HiggsGG-LO-mtfinite.nb HiggsGG-LO-mtfinite.nb]30 1. pp >H at NLO: details of the calculation (Mathematica Notebook) [attachment:HiggsGG-NLO.nb higgsGG-NLO.nb]31 1. pp >H at NLO: cross section evaluation for the LHC (Mathematica Notebook+PDF libraries to be compiled) [attachment:phenHiggs.tar.gz phenHiggs.tar.gz].29 1. pp>H at LO (1-loop): details of the calculation (Mathematica Notebook) [attachment:HiggsGG-LO-mtfinite.nb HiggsGG-LO-mtfinite.nb] 30 1. pp>H at NLO: details of the calculation (Mathematica Notebook) [attachment:HiggsGG-NLO.nb higgsGG-NLO.nb] 31 1. pp>H at NLO: cross section evaluation for the LHC (Mathematica Notebook+PDF libraries to be compiled) [attachment:phenHiggs.tar.gz phenHiggs.tar.gz]. 32 32 33 33 A summary of the results can be found in [attachment:Higgs.pdf Higgs.pdf]. … … 44 44 * Register with a valid e-mail address 45 45 * Feynman diagrams. Generate a few processes (with different QED + QCD couplings) trying to guess which diagrams appear: 46 * uu~ >tt~47 * gg >tt~48 * gg >tt~h (in SM and HEFT)49 * uu~ >tt~bb~46 * uu~>tt~ 47 * gg>tt~ 48 * gg>tt~h (in SM and HEFT) 49 * uu~>tt~bb~ 50 50 * Subprocess identification. List all subprocesses contributing to: 51 * pp >l+vljj52 * pp >tt~bb~53 * pp >tt~jj51 * pp>l+vljj 52 * pp>tt~bb~ 53 * pp>tt~jj 54 54 * Look at the new physics models and check the particle and interactions content. 55 55 * Advanced: Download the MG/ME package and play with the standalone version. … … 61 61 62 62 Example processes: 63 * ttbar production: pp >tt~, QED=064 * W production: pp >l+vl65 * Z/gamma* production: pp >e+e-66 * g g > (H >e+ ve mu- vm~) (in HEFT model)67 * p p > (W+>e+ ve) (W- >mu- vm~) (important background to previous process)63 * ttbar production: pp > tt~, QED=0 64 * W production: pp > l+vl 65 * Z/gamma* production: pp > e+e- 66 * g g > (H > e+ ve mu- vm~) (in HEFT model) 67 * p p > (W+>e+ ve) (W- > mu- vm~) (important background to previous process) 68 68 ====== Advanced exercises 1: The full simulation chain and advanced features ====== 69 69 … … 74 74 75 75 Study SM Higgs production at the LHC. Choose a channel and investigate signal and background, using either of the packages above: 76 1. The 2 lepton + missing Et final state: %$ pp \to H\to W^+ W^- \to e^- \bar \nu_e \mu^+ \nu_\mu $%76 1. The 2 lepton + missing Et final state: $ pp \to H\to W^+ W^- \to e^- \bar \nu_e \mu^+ \nu_\mu $ 77 77 1. 78 78 * Signal … … 82 82 * Events: [http://cp3wks05.fynu.ucl.ac.be/twiki/pub/Physics/DiscoverTheHiggs/hww-background.lhe.gz Parton Level] <span style="color: #000000;">|| </span>[http://cp3wks05.fynu.ucl.ac.be/twiki/pub/Physics/DiscoverTheHiggs/hww-background.lhco.gz Detector Level] 83 83 * Plots: [http://cp3wks05.fynu.ucl.ac.be/twiki/pub/Physics/DiscoverTheHiggs/hww-background-lhe.pdf Parton Level] <span style="color: #000000;">|| </span>[http://cp3wks05.fynu.ucl.ac.be/twiki/pub/Physics/DiscoverTheHiggs/hww-background-lhco.pdf Detector Level] 84 1. Top associated production %$pp \to t\bar tH$% with %$H \to b \bar b$%84 1. Top associated production $pp \to t\bar tH$ with $H \to b \bar b$ 85 85 * Signal + Background samples: 86 86 * Events: [http://cp3wks05.fynu.ucl.ac.be/twiki/pub/Physics/DiscoverTheHiggs/ttbb.lhe.gz Parton Level] || [http://cp3wks05.fynu.ucl.ac.be/twiki/pub/Physics/DiscoverTheHiggs/ttbb.lhco.gz Detector Level] … … 107 107 108 108 109