930 research outputs found

    MEASUREMENT OF THE INCLUSIVE ISOLATED PROMPT PHOTON PRODUCTION AT sqrt{s} = 7 TeV WITH THE ATLAS DETECTOR FOR THE 2011 DATASET

    Get PDF
    A measurement of the cross section for the inclusive production of isolated prompt photons in pppp collisions at a center-of-mass energy \sqrt{s} = 7\TeV is presented. The measurement covers the pseudorapidity ranges ‚ą£ő∑ő≥‚ą£<1.37|\eta^\gamma|<1.37 and 1.52‚ȧ‚ą£ő∑ő≥‚ą£<2.371.52\leq|\eta^\gamma|<2.37, in the transverse energy range 100\leq\ET^{\gamma}<1000 \GeV. The results are based on an integrated luminosity of 4.6~\ifb\ collected with the ATLAS detector at the LHC. The results are compared with next-to-leading order perturbative QCD calculations with CT10 and MSTW2008NLO PDFs, as well as two leading order Monte Carlo PYTHIA and HERWIG

    Data Science and Machine Learning in Education

    Full text link
    The growing role of data science (DS) and machine learning (ML) in high-energy physics (HEP) is well established and pertinent given the complex detectors, large data, sets and sophisticated analyses at the heart of HEP research. Moreover, exploiting symmetries inherent in physics data have inspired physics-informed ML as a vibrant sub-field of computer science research. HEP researchers benefit greatly from materials widely available materials for use in education, training and workforce development. They are also contributing to these materials and providing software to DS/ML-related fields. Increasingly, physics departments are offering courses at the intersection of DS, ML and physics, often using curricula developed by HEP researchers and involving open software and data used in HEP. In this white paper, we explore synergies between HEP research and DS/ML education, discuss opportunities and challenges at this intersection, and propose community activities that will be mutually beneficial.Comment: Contribution to Snowmass 202

    Measurement of t(t)over-bar normalised multi-differential cross sections in pp collisions at root s=13 TeV, and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions

    Get PDF
    Peer reviewe

    Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at ‚ąös = 13 TeV