Measurement of the cross section ratio σttbb/σttjj in pp collisions at √s=8 TeV
Type :
Article
Publication Status :
published
Access :
restrictedAccess
Abstract
The first measurement of the cross section ratio View the MathML source is presented using a data sample corresponding to an integrated luminosity of 19.6 fb−1 collected in pp collisions at View the MathML source with the CMS detector at the LHC. Events with two leptons (e or μ ) and four reconstructed jets, including two identified as b quark jets, in the final state are selected. The ratio is determined for a minimum jet transverse momentum pT of both 20 and 40 GeV/c . The measured ratio is View the MathML source for pT>20 GeV/c. The absolute cross sections View the MathML source and View the MathML source are also measured. The measured ratio for pT>40 GeV/c is compatible with a theoretical quantum chromodynamics calculation at next-to-leading order.
Source :
Physics Letters B
Date :
2015-06-30
Volume :
746
Publisher :
Elsevier
URI
http://hdl.handle.net/10679/4165http://www.sciencedirect.com/science/article/pii/S0370269315003263
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