On Self-Similarity of Top Production at Tevatron

0388655 - ÚJF 2013 RIV US eng J - Journal Article
Tokarev, M. V. - Zborovský, Imrich
On Self-Similarity of Top Production at Tevatron.
Journal of Modern Physics. Roč. 3, č. 8 (2012), s. 815-820. ISSN 2153-120X
R&D Projects: GA MŠMT LA08002; GA MŠMT LA08015
Institutional research plan: CEZ:AV0Z10480505
Keywords : top quark * Tevatron
Subject RIV: BE - Theoretical Physics
http://www.scirp.org/journal/PaperInformation.aspx?paperID=21690

Results of analysis of D{} 1.0 fb−1 data on top-quark differential cross section measurements at the Fermilab Tevatron collider at √ s = 1960 GeV in the framework of z-scaling approach are presented. Flavour independence of the scaling function ψ(z) observed in pp and pp¯ interactions over a wide collision energy range √ s = 19−1960 GeV is veriˇed. This property of ψ(z) was found for different hadrons from π meson up to Υ particle. The avour independence of ψ(z) is used as indication to self-similarity of top-quark production. A tendency to saturation of ψ(z) at low z for top-quark is demonstrated. The momentum fractions x1 of the incoming (anti)protons as a function of the scaled transverse momentum pT /m and masses of heavy mesons are studied. We anticipate that data on low- and high-pT inclusive spectra of top-quark production at Tevatron and LHC energies could be of interest for veriˇcation of the self-similarity over a wide range of masses and different avour content of produced particles.
Permanent Link: http://hdl.handle.net/11104/0217567