Aug 4 – 8, 2015
America/Detroit timezone

Measurement of tt-gamma production cross section at CMS

Aug 5, 2015, 4:50 PM
West Partition (Alumni Center)

West Partition

Alumni Center

Top Physics Top Physics


Andrew Ivanov (Kansas State University (US))


We present a measurement of the production cross-section of top-quark pairs in association with a photon in pp collisions at center-of-mass energy of 8 TeV. The data was recorded at the CMS experiment, corresponding to 19.7 fb-1 integrated luminosity. The measurement is performed in dilepton and lepton+jets final states. Data-driven methods are used to estimate the photon identification efficiency and purity. The measured cross-section agrees with the standard model expectation.
Oral or Poster Presentation Oral

Primary author

Andrew Ivanov (Kansas State University (US))

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