Optimization of tau identification in Atlas Experiment using multivariate Tools

نویسندگان

  • Lukasz Janyst
  • Anna Kaczmarska
  • Tadeusz Szymocha
  • Marcin Wolter
  • Andrzej Zemla
چکیده

Elementary particle physics experiments, searching for very rare processes, require the efficient analysis and selection algorithms able to separate signal from the overwhelming background. In the last years a number of learning machines have been developed. Three of such algorithms have been applied to identify τ leptons in the ATLAS experiment: Probability Density Estimator with Range Searches (PDE-RS), Neural Network and Support Vector Machine (SVM).

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Reconstruction and Identification of Tau Leptons in ATLAS

These proceedings describe the reconstruction and identification of tau leptons in the ATLAS experiment at the LHC. Tau leptons play an important role in the measurement of Standard Model processes, in the search for new physics (Supersymmetry, heavy resonances) and in the measurement of Higgs boson properties. Hadronic tau lepton decays are reconstructed calorimeter based and separation agains...

متن کامل

Tau leptons as a probe for new physics at LHC

The τ leptons identification with ATLAS experiment will be possible already at the start of the data taking. The copious production of W and Z bosons decaying to the tau leptons will provide unique possibility to calibrate and understand identification of hadronically decaying tau’s above the QCD background already with few hundreds of pb. With integrated luminosity of tens of fb, tau leptons w...

متن کامل

Performance of Tau Identification and Associated Systematic Uncertainties in ATLAS

In these proceedings, a description of the reconstruction and identification methods for tau leptons in ATLAS at the LHC is presented. Identifying tau leptons is essential in many analyses, be it for Standard Model (SM) and Higgs boson signatures or searches for physics beyond the SM. The decay of the tau particle with leptonic as well as hadronic decay modes and its short lifetime makes it esp...

متن کامل

Tracker and Calorimeter Performance for the Identification of Hadronic Tau Lepton Decays in ATLAS

Tau leptons play an important role in the physics program in ATLAS. They can be used not only in searches for new phenomena like the Higgs boson or Supersymmetry, or for electroweak measurements but also in detector related studies like the determination of the missing transverse energy scale. Identifying hadronically decaying tau leptons requires good understanding of the detector performance,...

متن کامل

Particle Identification for Higgs Physics in the Atlas Experiment∗ ∗∗

ATLAS is a general purpose experiment which will operate at the LHC. In the main focus of ATLAS is the investigation of the nature of the electroweak symmetry breaking, and therefore the search for the Higgs boson. Electrons, photons, muons, tau and b-jets are important components of the possible physics signatures expected. The expected quality of particle-ID impose strong requirements upon th...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Computer Science (AGH)

دوره 9  شماره 

صفحات  -

تاریخ انتشار 2008