Measurement of Associated Production of Z Bosons with Charm Quark Jets in p(p)over-bar Collisions at root s = 1.96 TeV
2014 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 112, no 4, 042001- p.Article in journal (Refereed) Published
We present the first measurements of the ratios of cross sections sigma(p (p) over bar -> Z + c jet)/sigma(p (p) over bar -> Z + jet) and sigma(p (p) over bar -> Z + jet)/sigma(p (p) over bar -> 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)(jet) > 20 GeV and pseudorapidity vertical bar eta(jet)vertical bar < 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 p<(p)over bar> collisions collected with the D0 detector at the Fermilab Tevatron Collider at root s = 1.96 TeV. The measurements show significant deviations from perturbative QCD calculations and predictions from various event generators.
Place, publisher, year, edition, pages
2014. Vol. 112, no 4, 042001- p.
IdentifiersURN: urn:nbn:se:uu:diva-221044DOI: 10.1103/PhysRevLett.112.042001ISI: 000331945600007OAI: oai:DiVA.org:uu-221044DiVA: diva2:709869