On Self-Similarity of Top Production at Tevatron

• 作者: Imrich Zborovsky Mikhail Tokarev
• 来源期刊: 现代物理(英文)
• 学科: 物理学
• 关键词: INELASTIC Cross Section Proton-AntiProton Collisions TOP PRODUCTION Scaling SELF-SIMILARITY
• 年，卷（期）: 2012,（8）
• 页码范围: 815-820
• 页数: 6页
• 分类号: O57

摘要

This paper presents the results of analysis of the 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. The flavor independence of scaling function Ψ(z)observed in pp and pp interactions over a wide collision energy range √s= 19-1960 GeV has been verified. This property of Ψ(z) was found for different hadrons – from π-mesons up to Υ particles. The flavor independence of Ψ(z) is used as indication on self-similarity of the top-quark production. A tendency to saturation of Ψ(z) at low z for top-quark production has been confirmed. Momentum fraction x1 of the incoming (anti)protons as a function of the scaled transverse momentum pT/m and masses of heavy mesons is studied. We anticipate that the data on low- and high-pT inclusive spectra of the top-quark production at the Tevatron and LHC energies could be of interest to verify self-similarity over a wide range of masses and different flavor content of produced particles.