Changes between Version 2 and Version 3 of WorkBook/Tutorials/Hefei
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- Nov 20, 2018, 11:25:52 AM (6 years ago)
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WorkBook/Tutorials/Hefei
v2 v3 28 28 This exercise will teach how to configure the Pythia8 event generator for a simple production of e+e- -> ZH events. Next, you will generate events and simulate the detector with the DelphesPythia8 executable. 29 29 30 1) First have a look at the Pythia8 configuration file "examples/Pythia8/configNoLHE.cmnd". 31 In this card identify the parameters that control: 32 33 - the number of events to be generated 34 - the nature of the colliding beams 35 - the center of mass energy 36 - the physics process to be generated 37 38 2) Create a Pythia8 configuration card that generates N=10k events of ee->Zh->mumu at sqrt(s)=240 GeV. 39 40 Find the above process in the Pythia8 manual (Hint: under "Higgs", then "Standard-Model Higgs, basic processes"): 41 42 http://home.thep.lu.se/~torbjorn/pythia81html/Welcome.html 43 44 Hint1: the code of electron (positron) is 11 (-11). 45 46 Hint2: the Z decay can be forced to muons with the following syntax: 30 1) Create a Pythia8 configuration card that generates N=10k events of ee->Zh->mumu at sqrt(s)=240 GeV (call it "examples/Pythia8/config_ee_zh_zmumu.cmd"). 47 31 48 32 {{{ 33 Main:numberOfEvents = 10000 ! number of events to generate 34 35 Beams:idA = 11 ! first beam, e- = -11 36 Beams:idB = -11 ! second beam, e+ = 11 37 Beams:eCM = 240. ! CM energy of collision 38 39 ! Higgsstrahlung process 40 HiggsSM:ffbar2HZ = on 41 42 ! 5) Force the Z decays to muons 49 43 23:onMode = off 50 44 23:onIfAny = 13 -13 51 45 }}} 52 46 53 3) Produce Delphes events using the above Pythia8 configuration (this command should run Pythia and Delphes on the fly!), using the CEPC detector card "cards/delphes_card_CEPC.tcl"47 2) Produce Delphes events using the above Pythia8 configuration (this command should run Pythia and Delphes on the fly!), using the CEPC detector card "cards/delphes_card_CEPC.tcl" 54 48 55 Hint: find the command to be executed here (adapting it to the above Delphes and Pythia8 cards of course): 56 57 https://cp3.irmp.ucl.ac.be/projects/delphes/wiki/WorkBook/Pythia8 58 49 {{{ 50 ./DelphesPythia8 cards/delphes_card_CEPC.tcl examples/Pythia8/config_ee_zh_zmumu.cmd delphes_ee_zh_zmumu.root 51 }}} 59 52 60 53 == II) Simple Tree analysis ==