Difference: UGProjectTTH (1 vs. 4)

Revision 42018-10-01 - SarahBoutle

Line: 1 to 1
 
META TOPICPARENT name="GlasgowBoostedTTH"
Changed:
<
<

ttH Summer Project

>
>

ttH Undergraduate Project

 
Line: 28 to 28
 CERN Summer students ROOT introductory workshop (particularly the video recording): https://indico.cern.ch/event/395198/

CERN ROOT introductory tutorial: https://root.cern.ch/introductory-tutorials

Added:
>
>
META TOPICMOVED by="SarahBoutle" date="1538391137" from="Sandbox.TtHUGProject" to="Sandbox.UGProjectTTH"

Revision 32018-08-02 - SarahBoutle

Line: 1 to 1
 
META TOPICPARENT name="GlasgowBoostedTTH"

ttH Summer Project

Line: 9 to 9
 One of the important physics goals of the Large Hadron Collider is to study the characteristics of the Higgs boson, for example its coupling to other fundamental particles. Being the heaviest quark, the top quark has the strongest coupling to the Higgs boson (Yukawa-coupling) and so the measurement of this coupling is therefore one of the most interesting tests of the Standard Model Higgs Boson. This coupling can be probed by studying the producton of Higgs bosons in association with top-quark pairs; the ttH channel. This channel is very challenging, since it suffers from large backgrounds (background: events with different production processes, that can look similar to the signal). The main background is the production of a top-quark pair with an additional b-quark pair, since it has exactly the same final state particles (irreducible background). The discrimination of ttH- and ttbb-events is therefore of the utmost importance to the sensitivity of the ttH channel. This summer project focuses on investigating the use of Machine Learning techniques to improve the signal/background separation.

Useful Links and Resources

Added:
>
>

ttH observation using a combination of Higgs decay channels:

 
Changed:
<
<
ATLAS Paper from 2017: "Search for the Standard Model Higgs boson produced in association with top quarks and decaying into a bb pair in pp collisions at √s = 13 TeV with the ATLAS detector": https://arxiv.org/abs/1712.08895

CERN seminar on ATLAS Evidence for ttH production (with video recording): https://indico.cern.ch/event/656771/

>
>
ATLAS "Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector" paper from 2018: https://arxiv.org/abs/1806.00425
  CMS "Observation of ttH production" paper from 2018: https://arxiv.org/abs/1804.02610

CERN LHC seminar on "New CMS measurements of Higgs boson production and decay properties" including ttH Observation (with video recording): https://indico.cern.ch/event/682983/

Added:
>
>

Most recent ATLAS results for ttH with Higgs→bb:

 
Changed:
<
<
CERN ROOT introductory tutorial: https://root.cern.ch/introductory-tutorials
>
>
ATLAS Paper from 2017: "Search for the Standard Model Higgs boson produced in association with top quarks and decaying into a bb pair in pp collisions at √s = 13 TeV with the ATLAS detector": https://arxiv.org/abs/1712.08895
 
Changed:
<
<
CERN Summer students ROOT introductory workshop (particularly the video recording): https://indico.cern.ch/event/395198/
>
>
CERN seminar on ATLAS Evidence for ttH production (with video recording): https://indico.cern.ch/event/656771/

LHC data analysis

  "From Raw Data to Physics results" CERN Summer student lecture recordings: [1] [2] [3]
Added:
>
>
CERN Summer students ROOT introductory workshop (particularly the video recording): https://indico.cern.ch/event/395198/

CERN ROOT introductory tutorial: https://root.cern.ch/introductory-tutorials

Revision 22018-04-11 - SarahBoutle

Line: 1 to 1
 
META TOPICPARENT name="GlasgowBoostedTTH"

ttH Summer Project


Changed:
<
<

PlotFactoryBoosted quickstart

>
>
Production of a top-quark pair in association with a Higgs-boson, where the Higgs-boson decays into a b-quark pair
 
Changed:
<
<
export ATLAS_LOCAL_ROOT_BASE=/cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase
alias setupATLAS='source ${ATLAS_LOCAL_ROOT_BASE}/user/atlasLocalSetup.sh'
setupATLAS --quiet
>
>
One of the important physics goals of the Large Hadron Collider is to study the characteristics of the Higgs boson, for example its coupling to other fundamental particles. Being the heaviest quark, the top quark has the strongest coupling to the Higgs boson (Yukawa-coupling) and so the measurement of this coupling is therefore one of the most interesting tests of the Standard Model Higgs Boson. This coupling can be probed by studying the producton of Higgs bosons in association with top-quark pairs; the ttH channel. This channel is very challenging, since it suffers from large backgrounds (background: events with different production processes, that can look similar to the signal). The main background is the production of a top-quark pair with an additional b-quark pair, since it has exactly the same final state particles (irreducible background). The discrimination of ttH- and ttbb-events is therefore of the utmost importance to the sensitivity of the ttH channel. This summer project focuses on investigating the use of Machine Learning techniques to improve the signal/background separation.
 
Changed:
<
<
mkdir PlotFactory _workdir
setupATLAS
cd PlotFactory _workdir
AnalysisTopVersion="2.3.45a"
rcSetup Top,"${AnalysisTopVersion}"
>
>

Useful Links and Resources

 
Changed:
<
<
rc checkout_pkg svn+ssh://username@svn.cern.ch/reps/atlas-aknue/GlaProjects/PlotFactoryBoosted/devbranches/PlotFactoryBoosted_btagging/
rc checkout_pkg atlasoff/PhysicsAnalysis/TopPhys/TopPhysUtils/TopDataPreparation/trunk
rc checkout_pkg atlasoff/PhysicsAnalysis/TopPhys/xAOD/TopFakes/tags/TopFakes-00-00-08

rc find_packages
rc compile

cd PlotFactoryBoosted /scripts
python RunSuperScript.py
>
>
ATLAS Paper from 2017: "Search for the Standard Model Higgs boson produced in association with top quarks and decaying into a bb pair in pp collisions at √s = 13 TeV with the ATLAS detector": https://arxiv.org/abs/1712.08895
 
Changed:
<
<

If your lxplus username is not the same as your ppe username:

>
>
CERN seminar on ATLAS Evidence for ttH production (with video recording): https://indico.cern.ch/event/656771/
 
Changed:
<
<
https://twiki.cern.ch/twiki/bin/view/AtlasComputing/SoftwareDevelopmentWorkBookSVN#Access_to_the_SVN_repositories
>
>
CMS "Observation of ttH production" paper from 2018: https://arxiv.org/abs/1804.02610
 
Changed:
<
<

>
>
CERN LHC seminar on "New CMS measurements of Higgs boson production and decay properties" including ttH Observation (with video recording): https://indico.cern.ch/event/682983/
 
Changed:
<
<

Useful Links

>
>
CERN ROOT introductory tutorial: https://root.cern.ch/introductory-tutorials
 
Changed:
<
<
PlotFactoryBoosted: https://svnweb.cern.ch/cern/wsvn/atlas-aknue/GlaProjects/PlotFactoryBoosted/
>
>
CERN Summer students ROOT introductory workshop (particularly the video recording): https://indico.cern.ch/event/395198/
 
Changed:
<
<
Article text.

-- Sarah Boutle - 2016-06-16

Comments


<--/commentPlugin-->
>
>
"From Raw Data to Physics results" CERN Summer student lecture recordings: [1] [2] [3]

Revision 12016-06-16 - SarahBoutle

Line: 1 to 1
Added:
>
>
META TOPICPARENT name="GlasgowBoostedTTH"

ttH Summer Project


PlotFactoryBoosted quickstart

export ATLAS_LOCAL_ROOT_BASE=/cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase
alias setupATLAS='source ${ATLAS_LOCAL_ROOT_BASE}/user/atlasLocalSetup.sh'
setupATLAS --quiet

mkdir PlotFactory _workdir
setupATLAS
cd PlotFactory _workdir
AnalysisTopVersion="2.3.45a"
rcSetup Top,"${AnalysisTopVersion}"

rc checkout_pkg svn+ssh://username@svn.cern.ch/reps/atlas-aknue/GlaProjects/PlotFactoryBoosted/devbranches/PlotFactoryBoosted_btagging/
rc checkout_pkg atlasoff/PhysicsAnalysis/TopPhys/TopPhysUtils/TopDataPreparation/trunk
rc checkout_pkg atlasoff/PhysicsAnalysis/TopPhys/xAOD/TopFakes/tags/TopFakes-00-00-08

rc find_packages
rc compile

cd PlotFactoryBoosted /scripts
python RunSuperScript.py

If your lxplus username is not the same as your ppe username:

https://twiki.cern.ch/twiki/bin/view/AtlasComputing/SoftwareDevelopmentWorkBookSVN#Access_to_the_SVN_repositories


Useful Links

PlotFactoryBoosted: https://svnweb.cern.ch/cern/wsvn/atlas-aknue/GlaProjects/PlotFactoryBoosted/

Article text.

-- Sarah Boutle - 2016-06-16

Comments


<--/commentPlugin-->
 
This site is powered by the TWiki collaboration platform Powered by PerlCopyright © 2008-2020 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback