Associated production of a top pair and a Z boson at the LHC to NNLL accuracy

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作者
Alessandro Broggio
Andrea Ferroglia
Giovanni Ossola
Ben D. Pecjak
Ray D. Sameshima
机构
[1] Technische Universität München,Physik Department T31
[2] The City University of New York,Physics Department, New York City College of Technology
[3] The City University of New York,The Graduate School and University Center
[4] University of Durham,Institute for Particle Physics Phenomenology, Ogden Centre for Fundamental Physics, Department of Physics
[5] Science Laboratories,undefined
关键词
NLO Computations; QCD Phenomenology;
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摘要
We study the resummation of soft gluon emission corrections to the production of a top-antitop pair in association with a Z boson at the Large Hadron Collider to next-to-next-to-leading logarithmic accuracy. By means of an in-house parton level Monte Carlo code we evaluate the resummation formula for the total cross section and several differential distributions at a center-of-mass energy of 13 TeV, and we match these calculations to next-to-leading order results.
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