{ "id": "1308.4384", "version": "v1", "published": "2013-08-20T19:21:43.000Z", "updated": "2013-08-20T19:21:43.000Z", "title": "Measurement of associated production of Z bosons with charm quark jets in ppbar collisions at sqrt(s)=1.96 TeV", "authors": [ "The D0 Collaboration" ], "comment": "submitted to Phys. Rev. Lett", "journal": "Phys. Rev. Lett. 112, 042001 (2014)", "doi": "10.1103/PhysRevLett.112.042001", "categories": [ "hep-ex" ], "abstract": "We present the first measurements of the ratios of cross sections, \\sigma(ppbar -> Z+c jet)/\\sigma(ppbar -> Z+jet) and \\sigma(ppbar -> Z+c jet)/\\sigma(ppbar -> Z+b jet) for the associated production of a Z boson with at least one charm or bottom quark jet. Jets have transverse momentum p_{T}>20 GeV and pseudorapidity |\\eta|<2.5. These cross section ratios are measured differentially as a function of jet and $Z$ boson transverse momenta, based on 9.7 fb^{-1} of ppbar collisions collected with the D0 detector at the Fermilab Tevatron Collider at sqrt(s) = 1.96 TeV. The measurements show significant deviations from perturbative QCD calculations and predictions from various event generators.", "revisions": [ { "version": "v1", "updated": "2013-08-20T19:21:43.000Z" } ], "analyses": { "subjects": [ "12.38.Qk", "13.85.Qk", "14.65.Dw", "14.70.Hp" ], "keywords": [ "charm quark jets", "ppbar collisions", "associated production", "measurement", "transverse momentum" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1249879, "adsabs": "2013arXiv1308.4384T" } } }